Check DNS, Urls + Redirects, Certificates and Content of your Website




N

No trusted Certificate

Checked:
11.06.2024 15:51:15


Older results

No older results found


1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
teacherdadaplus.com
A
3.6.163.246
Mumbai/Maharashtra/India (IN) - Amazon Technologies Inc
Hostname: ec2-3-6-163-246.ap-south-1.compute.amazonaws.com
yes
2
0

AAAA

yes


www.teacherdadaplus.com
CNAME
teacherdadaplus.com
yes
1
0

A
3.6.163.246
Mumbai/Maharashtra/India (IN) - Amazon Technologies Inc
Hostname: ec2-3-6-163-246.ap-south-1.compute.amazonaws.com
yes


*.teacherdadaplus.com
A

yes



AAAA
2406:da1a:61c:da00:1693:551d:775f:e784
yes



CNAME

yes



2. DNSSEC

Zone (*)DNSSEC - Informations

Zone: (root)
(root)
1 DS RR published



DS with Algorithm 8, KeyTag 20326, DigestType 2 and Digest 4G1EuAuPHTmpXAsNfGXQhFjogECbvGg0VxBCN8f47I0=



Status: Valid because published



2 DNSKEY RR found



Public Key with Algorithm 8, KeyTag 5613, Flags 256



Public Key with Algorithm 8, KeyTag 20326, Flags 257 (SEP = Secure Entry Point)



1 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 01.07.2024, 00:00:00 +, Signature-Inception: 10.06.2024, 00:00:00 +, KeyTag 20326, Signer-Name: (root)



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 20326 used to validate the DNSKEY RRSet



Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 20326, DigestType 2 and Digest "4G1EuAuPHTmpXAsNfGXQhFjogECbvGg0VxBCN8f47I0=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: com
com
1 DS RR in the parent zone found



DS with Algorithm 13, KeyTag 19718, DigestType 2 and Digest isuwzSj0ElCoCkkTiUJNNBUi2Uaw2gwCkfLT13HXgFo=



1 RRSIG RR to validate DS RR found



RRSIG-Owner com., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 24.06.2024, 05:00:00 +, Signature-Inception: 11.06.2024, 04:00:00 +, KeyTag 5613, Signer-Name: (root)



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 5613 used to validate the DS RRSet in the parent zone



2 DNSKEY RR found



Public Key with Algorithm 13, KeyTag 956, Flags 256



Public Key with Algorithm 13, KeyTag 19718, Flags 257 (SEP = Secure Entry Point)



1 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner com., Algorithm: 13, 1 Labels, original TTL: 86400 sec, Signature-expiration: 21.06.2024, 14:02:35 +, Signature-Inception: 06.06.2024, 13:57:35 +, KeyTag 19718, Signer-Name: com



Status: Good - Algorithmus 13 and DNSKEY with KeyTag 19718 used to validate the DNSKEY RRSet



Status: Valid Chain of trust. Parent-DS with Algorithm 13, KeyTag 19718, DigestType 2 and Digest "isuwzSj0ElCoCkkTiUJNNBUi2Uaw2gwCkfLT13HXgFo=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: teacherdadaplus.com
teacherdadaplus.com
0 DS RR in the parent zone found



DS-Query in the parent zone has a valid NSEC3 RR as result with the hashed query name "igsfh2ukflphpgf2359a0a15ma4j8oje" between the hashed NSEC3-owner "igsffatm4fncu3ops1kuti2nvoadstjp" and the hashed NextOwner "igsfiqqvsanrurdldvin2da05aqkr3dm". So the parent zone confirmes the not-existence of a DS RR.
Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner igsffatm4fncu3ops1kuti2nvoadstjp.com., Algorithm: 13, 2 Labels, original TTL: 86400 sec, Signature-expiration: 15.06.2024, 04:32:51 +, Signature-Inception: 08.06.2024, 03:22:51 +, KeyTag 956, Signer-Name: com



DS-Query in the parent zone sends valid NSEC3 RR with the Hash "ck0pojmg874ljref7efn8430qvit8bsm" as Owner. That's the Hash of "com" with the NextHashedOwnerName "ck0q2d6ni4i7eqh8na30ns61o48ul8g5". So that domain name is the Closest Encloser of "teacherdadaplus.com". Opt-Out: True.
Bitmap: NS, SOA, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner ck0pojmg874ljref7efn8430qvit8bsm.com., Algorithm: 13, 2 Labels, original TTL: 86400 sec, Signature-expiration: 17.06.2024, 04:25:19 +, Signature-Inception: 10.06.2024, 03:15:19 +, KeyTag 956, Signer-Name: com



0 DNSKEY RR found




Zone: www.teacherdadaplus.com
www.teacherdadaplus.com
0 DS RR in the parent zone found


3. Name Servers

DomainNameserverNS-IP
teacherdadaplus.com
  ns-1241.awsdns-27.org / c437c83c553e75cdcdde5edf42a06b43 -
205.251.196.217
Herndon/Virginia/United States (US) - Amazon.com


 
2600:9000:5304:d900::1
New York/United States (US) - Amazon.com


  ns-1581.awsdns-05.co.uk / 815d1b947b77b3e5f0a8dba18afcb170 -
205.251.198.45
Ashburn/Virginia/United States (US) - Amazon.com


 
2600:9000:5306:2d00::1
Seattle/Washington/United States (US) - Amazon.com


  ns-316.awsdns-39.com / c68a3fd03658ddf5540ffab3726c0694 -
205.251.193.60
Ashburn/Virginia/United States (US) - Amazon.com


 
2600:9000:5301:3c00::1
Seattle/Washington/United States (US) - Amazon.com


  ns-579.awsdns-08.net / c6dd72bf5ec62d5e10f587e53eadeb8e -
205.251.194.67
Ashburn/Virginia/United States (US) - Amazon.com


 
2600:9000:5302:4300::1
Seattle/Washington/United States (US) - Amazon.com

com
  a.gtld-servers.net / nnn1-par6


  b.gtld-servers.net / nnn1-elbeg2


  c.gtld-servers.net / nnn1-par6


  d.gtld-servers.net / nnn1-par6


  e.gtld-servers.net / nnn1-par6


  f.gtld-servers.net / nnn1-defra-4


  g.gtld-servers.net / nnn1-defra-4


  h.gtld-servers.net / nnn1-defra-4


  i.gtld-servers.net / nnn1-defra-4


  j.gtld-servers.net / nnn1-frmrs-2


  k.gtld-servers.net / nnn1-frmrs-2


  l.gtld-servers.net / nnn1-ein1


  m.gtld-servers.net / nnn1-ein4


4. SOA-Entries


Domain:com
Zone-Name:com
Primary:a.gtld-servers.net
Mail:nstld.verisign-grs.com
Serial:1718113844
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:1


Domain:com
Zone-Name:com
Primary:a.gtld-servers.net
Mail:nstld.verisign-grs.com
Serial:1718113844
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:1


Domain:com
Zone-Name:com
Primary:a.gtld-servers.net
Mail:nstld.verisign-grs.com
Serial:1718113859
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:11


Domain:com
Zone-Name:com
Primary:a.gtld-servers.net
Mail:nstld.verisign-grs.com
Serial:1718113859
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:11


Domain:com
Zone-Name:com
Primary:a.gtld-servers.net
Mail:nstld.verisign-grs.com
Serial:1718113874
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:1


Domain:com
Zone-Name:com
Primary:a.gtld-servers.net
Mail:nstld.verisign-grs.com
Serial:1718113874
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:1


Domain:teacherdadaplus.com
Zone-Name:teacherdadaplus.com
Primary:ns-1581.awsdns-05.co.uk
Mail:awsdns-hostmaster.amazon.com
Serial:1
Refresh:7200
Retry:900
Expire:1209600
TTL:86400
num Entries:8


5. Screenshots

Startaddress: https://www.teacherdadaplus.com/, address used: https://www.teacherdadaplus.com/, Screenshot created 2024-06-11 16:01:40 +00:0

Mobil (412px x 732px)

14459 milliseconds

Screenshot mobile - https://www.teacherdadaplus.com/
Mobil + Landscape (732px x 412px)

11633 milliseconds

Screenshot mobile landscape - https://www.teacherdadaplus.com/
Screen (1280px x 1680px)

7457 milliseconds

Screenshot Desktop - https://www.teacherdadaplus.com/

Mobile- and other Chrome-Checks

widthheight
visual Viewport396732
content Size3968632

Good: No horizontal scrollbar. Content-size width = visual Viewport width.

6. Url-Checks


:

:
DomainnameHttp-StatusredirectSec.G
• http://teacherdadaplus.com/
3.6.163.246
301
https://teacherdadaplus.com/
Html is minified: 100.00 %
0.290
A
Date: Tue, 11 Jun 2024 13:51:58 GMT
Server: Apache/2.4.52, (Ubuntu)
Location: https://teacherdadaplus.com/
Connection: close
Content-Length: 321
Content-Type: text/html; charset=iso-8859-1

• http://www.teacherdadaplus.com/
3.6.163.246
301
https://www.teacherdadaplus.com/
Html is minified: 100.00 %
0.294
A
Date: Tue, 11 Jun 2024 13:51:58 GMT
Server: Apache/2.4.52, (Ubuntu)
Location: https://www.teacherdadaplus.com/
Connection: close
Content-Length: 329
Content-Type: text/html; charset=iso-8859-1

• https://teacherdadaplus.com/
3.6.163.246 GZip used - 26334 / 345364 - 92.38 %
Inline-JavaScript (∑/total): 28/19406 Inline-CSS (∑/total): 4/104408
200

Html is minified: 277.62 %
11.837
N
Certificate error: RemoteCertificateNameMismatch
Date: Tue, 11 Jun 2024 13:51:59 GMT
Server: Apache/2.4.52, (Ubuntu)
Set-Cookie: PHPSESSID=tsij8oq77pk04l2lonbdo7qt12; path=/
Cache-Control: no-store, must-revalidate, no-cache, post-check=0, pre-check=0
Pragma: no-cache
Vary: Accept-Encoding
Connection: close
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Content-Encoding: gzip
Content-Length: 26334
Content-Type: text/html; charset=UTF-8

• https://www.teacherdadaplus.com/
3.6.163.246 GZip used - 26374 / 345541 - 92.37 %
Inline-JavaScript (∑/total): 28/19406 Inline-CSS (∑/total): 4/104408
200

Html is minified: 277.37 %
10.554
I
Date: Tue, 11 Jun 2024 13:52:13 GMT
Server: Apache/2.4.52, (Ubuntu)
Set-Cookie: PHPSESSID=e5gafr67vt8nemd6550p0q58pg; path=/
Cache-Control: no-store, must-revalidate, no-cache, post-check=0, pre-check=0
Pragma: no-cache
Vary: Accept-Encoding
Connection: close
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Content-Encoding: gzip
Content-Length: 26374
Content-Type: text/html; charset=UTF-8

• http://teacherdadaplus.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
3.6.163.246
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
301
https://teacherdadaplus.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Html is minified: 100.00 %
0.287
A
Visible Content:
Date: Tue, 11 Jun 2024 13:52:25 GMT
Server: Apache/2.4.52, (Ubuntu)
Location: https://teacherdadaplus.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Connection: close
Content-Length: 390
Content-Type: text/html; charset=iso-8859-1

• http://www.teacherdadaplus.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
3.6.163.246
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
301
https://www.teacherdadaplus.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Html is minified: 100.00 %
0.297
A
Visible Content:
Date: Tue, 11 Jun 2024 13:52:26 GMT
Server: Apache/2.4.52, (Ubuntu)
Location: https://www.teacherdadaplus.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Connection: close
Content-Length: 398
Content-Type: text/html; charset=iso-8859-1

• https://teacherdadaplus.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de

200

4.853
N
Certificate error: RemoteCertificateNameMismatch
Visible Content:
Date: Tue, 11 Jun 2024 13:52:34 GMT
Server: Apache/2.4.52, (Ubuntu)
Set-Cookie: PHPSESSID=t9qef71tm5s5bqg7mn80bim7hm; path=/
Cache-Control: no-store, must-revalidate, no-cache
Pragma: no-cache
Refresh: 0;url=https://teacherdadaplus.com/page-not-found
Connection: close
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Content-Length: 0
Content-Type: text/html; charset=UTF-8

• https://www.teacherdadaplus.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de

200

4.793

Visible Content:
Date: Tue, 11 Jun 2024 13:52:41 GMT
Server: Apache/2.4.52, (Ubuntu)
Set-Cookie: PHPSESSID=ihtbc6snbplljt0tprobo3fovr; path=/
Cache-Control: no-store, must-revalidate, no-cache
Pragma: no-cache
Refresh: 0;url=https://teacherdadaplus.com/page-not-found
Connection: close
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Content-Length: 0
Content-Type: text/html; charset=UTF-8

• https://3.6.163.246/
3.6.163.246
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
200

Html is minified: 100.00 %
5.290
N
Certificate error: RemoteCertificateNameMismatch
Date: Tue, 11 Jun 2024 13:52:27 GMT
Server: Apache/2.4.52, (Ubuntu)
Strict-Transport-Security: max-age=31536000
Content-Security-Policy: upgrade-insecure-requests
ETag: "b-61a9b42cb4b2e"
Accept-Ranges: bytes
Connection: close
Last-Modified: Tue, 11 Jun 2024 11:06:43 GMT
Content-Length: 11
Content-Type: text/html

7. Comments


1. General Results, most used to calculate the result

Aname "teacherdadaplus.com" is domain, public suffix is ".com", top-level-domain is ".com", top-level-domain-type is "generic", tld-manager is "VeriSign Global Registry Services", num .com-domains preloaded: 94787 (complete: 245733)
AGood: All ip addresses are public addresses
Warning: Only one ip address found: teacherdadaplus.com has only one ip address.
Warning: Only one ip address found: www.teacherdadaplus.com has only one ip address.
Warning: No ipv6 address found. Ipv6 is the future with a lot of new features. So every domain name should have an ipv6 address. See https://en.wikipedia.org/wiki/IPv6: teacherdadaplus.com has no ipv6 address.
Warning: No ipv6 address found. Ipv6 is the future with a lot of new features. So every domain name should have an ipv6 address. See https://en.wikipedia.org/wiki/IPv6: www.teacherdadaplus.com has no ipv6 address.
AGood: No asked Authoritative Name Server had a timeout
AGood: destination is https
AGood: No cookie sent via http.
HSTS-Preload-Status: unknown. Domain never included in the Preload-list. Check https://hstspreload.org/ to learn some basics about the Google-Preload-List.
AGood: Some urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset):4 complete Content-Type - header (5 urls)
https://3.6.163.246/ 3.6.163.246


Url with incomplete Content-Type - header - missing charset
https://teacherdadaplus.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de

0;url=https://teacherdadaplus.com/page-not-found
Info: Non-standard Header "Refresh" found.
https://www.teacherdadaplus.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de

0;url=https://teacherdadaplus.com/page-not-found
Info: Non-standard Header "Refresh" found.
Ahttp://teacherdadaplus.com/ 3.6.163.246
301
https://teacherdadaplus.com/
Correct redirect http - https with the same domain name
Ahttp://www.teacherdadaplus.com/ 3.6.163.246
301
https://www.teacherdadaplus.com/
Correct redirect http - https with the same domain name
Bhttps://teacherdadaplus.com/ 3.6.163.246
200

Missing HSTS-Header
Bhttps://www.teacherdadaplus.com/ 3.6.163.246
200

Missing HSTS-Header
Bhttps://teacherdadaplus.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
200

Missing HSTS-Header
Bhttps://www.teacherdadaplus.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
200

Missing HSTS-Header
Bhttps://teacherdadaplus.com/ 3.6.163.246
200
PHPSESSID=tsij8oq77pk04l2lonbdo7qt12; path=/
Cookie sent via https, but not marked as secure
Bhttps://www.teacherdadaplus.com/ 3.6.163.246
200
PHPSESSID=e5gafr67vt8nemd6550p0q58pg; path=/
Cookie sent via https, but not marked as secure
Bhttps://teacherdadaplus.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
200
PHPSESSID=t9qef71tm5s5bqg7mn80bim7hm; path=/
Cookie sent via https, but not marked as secure
Bhttps://www.teacherdadaplus.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
200
PHPSESSID=ihtbc6snbplljt0tprobo3fovr; path=/
Cookie sent via https, but not marked as secure
Bhttps://teacherdadaplus.com/ 3.6.163.246
200
PHPSESSID=tsij8oq77pk04l2lonbdo7qt12; path=/
Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value.
Bhttps://www.teacherdadaplus.com/ 3.6.163.246
200
PHPSESSID=e5gafr67vt8nemd6550p0q58pg; path=/
Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value.
Bhttps://teacherdadaplus.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
200
PHPSESSID=t9qef71tm5s5bqg7mn80bim7hm; path=/
Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value.
Bhttps://www.teacherdadaplus.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
200
PHPSESSID=ihtbc6snbplljt0tprobo3fovr; path=/
Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value.
CError - no preferred version www or non-www. Select one version as preferred version, then add a redirect https + not-preferred version to https + preferred version. Perhaps in your port 443 vHost something like "RewriteEngine on" + "RewriteCond %{SERVER_NAME} = example.com" + "ReWriteRule ^ https://www.example.com%{REQUEST_URI} [END,QSA,R=permanent]" (three rows, without the "). That should create a redirect https + example.com ⇒ https + www.example.com. Or switch both values to use the non-www version as your preferred version.
CError - more then one version with Http-Status 200. After all redirects, all users (and search engines) should see the same https url: Non-www or www, but not both with http status 200.
Ihttps://www.teacherdadaplus.com/ 3.6.163.246
200

Content problems or problems with resources included - http links, files doesn't exist, different Content-Type definitions. Check the Html-Content - Part.
Nhttps://teacherdadaplus.com/ 3.6.163.246
200

Error - Certificate isn't trusted, RemoteCertificateNameMismatch
Nhttps://teacherdadaplus.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
200

Error - Certificate isn't trusted, RemoteCertificateNameMismatch
Nhttps://3.6.163.246/ 3.6.163.246
200

Error - Certificate isn't trusted, RemoteCertificateNameMismatch
Info: Checking all ip addresses of that domain without sending the hostname only one certificate found. Checking all ip addresses and sending the hostname only one certificate found. Both certificates are different. So that domain requires Server Name Indication (SNI), so the server is able to select the correct certificate.: Domain teacherdadaplus.com, 1 ip addresses.
Info: Checking all ip addresses of that domain without sending the hostname only one certificate found. Checking all ip addresses and sending the hostname only one certificate found. Both certificates are different. So that domain requires Server Name Indication (SNI), so the server is able to select the correct certificate.: Domain www.teacherdadaplus.com, 1 ip addresses.
BNo _mta-sts TXT record found (mta-sts: Mail Transfer Agent Strict Transport Security - see RFC 8461). Read the result of server-daten.de (Url-Checks, Comments, Connections and DomainServiceRecords) to see a complete definition. Domainname: _mta-sts.teacherdadaplus.com

2. Header-Checks (Cross-Origin-* headers are alpha - started 2024-06-05)

Fteacherdadaplus.com 3.6.163.246
Content-Security-Policy
Critical: Missing Header:
Fteacherdadaplus.com 3.6.163.246
X-Content-Type-Options
Critical: Missing Header:
Fteacherdadaplus.com 3.6.163.246
Referrer-Policy
Critical: Missing Header:
Fteacherdadaplus.com 3.6.163.246
Permissions-Policy
Critical: Missing Header:
Bteacherdadaplus.com 3.6.163.246
Cross-Origin-Embedder-Policy
Info: Missing Header
Bteacherdadaplus.com 3.6.163.246
Cross-Origin-Opener-Policy
Info: Missing Header
Bteacherdadaplus.com 3.6.163.246
Cross-Origin-Resource-Policy
Info: Missing Header
Fwww.teacherdadaplus.com 3.6.163.246
Content-Security-Policy
Critical: Missing Header:
Fwww.teacherdadaplus.com 3.6.163.246
X-Content-Type-Options
Critical: Missing Header:
Fwww.teacherdadaplus.com 3.6.163.246
Referrer-Policy
Critical: Missing Header:
Fwww.teacherdadaplus.com 3.6.163.246
Permissions-Policy
Critical: Missing Header:
Bwww.teacherdadaplus.com 3.6.163.246
Cross-Origin-Embedder-Policy
Info: Missing Header
Bwww.teacherdadaplus.com 3.6.163.246
Cross-Origin-Opener-Policy
Info: Missing Header
Bwww.teacherdadaplus.com 3.6.163.246
Cross-Origin-Resource-Policy
Info: Missing Header

3. DNS- and NameServer - Checks

AInfo:: 16 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 4 Name Servers.
AInfo:: 16 Queries complete, 16 with IPv6, 0 with IPv4.
AGood: All DNS Queries done via IPv6.
Ok (4 - 8):: An average of 4.0 queries per domain name server required to find all ip addresses of all name servers.
AInfo:: 4 different Name Servers found: ns-1241.awsdns-27.org, ns-1581.awsdns-05.co.uk, ns-316.awsdns-39.com, ns-579.awsdns-08.net, 4 Name Servers included in Delegation: ns-1241.awsdns-27.org, ns-1581.awsdns-05.co.uk, ns-316.awsdns-39.com, ns-579.awsdns-08.net, 4 Name Servers included in 1 Zone definitions: ns-1241.awsdns-27.org, ns-1581.awsdns-05.co.uk, ns-316.awsdns-39.com, ns-579.awsdns-08.net, 1 Name Servers listed in SOA.Primary: ns-1581.awsdns-05.co.uk.
AGood: Only one SOA.Primary Name Server found.: ns-1581.awsdns-05.co.uk.
AGood: SOA.Primary Name Server included in the delegation set.: ns-1581.awsdns-05.co.uk.
AGood: Consistency between delegation and zone. The set of NS records served by the authoritative name servers must match those proposed for the delegation in the parent zone. Ordered list of name servers: ns-1241.awsdns-27.org, ns-1581.awsdns-05.co.uk, ns-316.awsdns-39.com, ns-579.awsdns-08.net
AGood: All Name Server Domain Names have a Public Suffix.
AGood: All Name Server Domain Names ending with a Public Suffix have minimal one IPv4- or IPv6 address.
AGood: All Name Server ip addresses are public.
AGood: Minimal 2 different name servers (public suffix and public ip address) found: 4 different Name Servers found
AGood: All name servers have ipv4- and ipv6-addresses.: 4 different Name Servers found
AGood: Name servers with different Top Level Domains / Public Suffix List entries found: 4 Name Servers, 4 Top Level Domains: org, net, com, co.uk
AGood: Name Servers with different domain names found.: 4 different Domains found
Warning: All Name Servers from the same Country / IP location.: 4 Name Servers, 1 Countries: US
AInfo: Ipv4-Subnet-list: 4 Name Servers, 1 different subnets (first Byte): 205., 1 different subnets (first two Bytes): 205.251., 4 different subnets (first three Bytes): 205.251.193., 205.251.194., 205.251.196., 205.251.198.
AGood: Name Server IPv4-addresses from different subnet found:
AInfo: IPv6-Subnet-list: 4 Name Servers with IPv6, 1 different subnets (first block): 2600:, 1 different subnets (first two blocks): 2600:9000:, 4 different subnets (first three blocks): 2600:9000:5301:, 2600:9000:5302:, 2600:9000:5304:, 2600:9000:5306:, 4 different subnets (first four blocks): 2600:9000:5301:3c00:, 2600:9000:5302:4300:, 2600:9000:5304:d900:, 2600:9000:5306:2d00:
AGood: Name Server IPv6 addresses from different subnets found.
AGood: Nameserver supports TCP connections: 8 good Nameserver
AGood: Nameserver supports Echo Capitalization: 8 good Nameserver
AGood: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 8 good Nameserver
AGood: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 8 good Nameserver
AGood: All SOA have the same Serial Number
Warning: No CAA entry with issue/issuewild found, every CAA can create a certificate. Read https://en.wikipedia.org/wiki/DNS_Certification_Authority_Authorization to learn some basics about the idea of CAA. Your name server must support such an entry. Not all dns providers support CAA entries.

4. Content- and Performance-critical Checks

https://www.teacherdadaplus.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
200

Warning: Not existing ACME-file, but Server sends 200, not 404 or redirect. May be a problem creating a Letsencrypt certificate. Checking /.well-known/acme-challenge/random-filename - a http status 404 - Not Found - is expected. If your server sends content and a http status 200, the validation file (87 bytes, token, dot and the hash of the public part of the account key) may be invisible, so Letsencrypt can't validate your domain. If it is an application that sends this content, perhaps create an exception, so /.well-known/acme-challenge sends raw files. Or create a redirect to another domain and / or port 443, but your Letsencrypt client must support such a solution. Certbot: Use webroot as authenticator - https://certbot.eff.org/docs/using.html Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask.
AGood: Every https result with status 200 supports GZip.
https://teacherdadaplus.com/ 3.6.163.246
200

Warning: Https + http status 200 + Inline CSS / JavaScript found. Don't use inline CSS / JavaScript. These are compiled and re-used ressources, save these with a long Cache-Control max-age - header.
https://www.teacherdadaplus.com/ 3.6.163.246
200

Warning: Https + http status 200 + Inline CSS / JavaScript found. Don't use inline CSS / JavaScript. These are compiled and re-used ressources, save these with a long Cache-Control max-age - header.
https://teacherdadaplus.com/ 3.6.163.246
200

Warning: Https result with status 200 found, Html-Content is too big. Should be max. 110 %. May contain inline CSS / JavaScript, too much comments or white space. Re-used ressources - create files with a long Cache-Control max-age header. Remove comments and white space.
https://www.teacherdadaplus.com/ 3.6.163.246
200

Warning: Https result with status 200 found, Html-Content is too big. Should be max. 110 %. May contain inline CSS / JavaScript, too much comments or white space. Re-used ressources - create files with a long Cache-Control max-age header. Remove comments and white space.
https://teacherdadaplus.com/ 3.6.163.246
200

Warning: Https connections (Standard Port 443) found without support of the http/2 protocol via ALPN. Http/2 is the new Http-Version (old: http 1.1) with some important new features. Update your server software so http/2 is available. Only one TCP-connection per Server (that's a performance boost), Header-Compression and Server Pushs are available. Domain Sharding and Inline-CSS/Javascript shouldn't used with http/2.
https://www.teacherdadaplus.com/ 3.6.163.246
200

Warning: Https connections (Standard Port 443) found without support of the http/2 protocol via ALPN. Http/2 is the new Http-Version (old: http 1.1) with some important new features. Update your server software so http/2 is available. Only one TCP-connection per Server (that's a performance boost), Header-Compression and Server Pushs are available. Domain Sharding and Inline-CSS/Javascript shouldn't used with http/2.
https://teacherdadaplus.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
200

Warning: Https connections (Standard Port 443) found without support of the http/2 protocol via ALPN. Http/2 is the new Http-Version (old: http 1.1) with some important new features. Update your server software so http/2 is available. Only one TCP-connection per Server (that's a performance boost), Header-Compression and Server Pushs are available. Domain Sharding and Inline-CSS/Javascript shouldn't used with http/2.
https://www.teacherdadaplus.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
200

Warning: Https connections (Standard Port 443) found without support of the http/2 protocol via ALPN. Http/2 is the new Http-Version (old: http 1.1) with some important new features. Update your server software so http/2 is available. Only one TCP-connection per Server (that's a performance boost), Header-Compression and Server Pushs are available. Domain Sharding and Inline-CSS/Javascript shouldn't used with http/2.
https://3.6.163.246/ 3.6.163.246
200

Warning: Https connections (Standard Port 443) found without support of the http/2 protocol via ALPN. Http/2 is the new Http-Version (old: http 1.1) with some important new features. Update your server software so http/2 is available. Only one TCP-connection per Server (that's a performance boost), Header-Compression and Server Pushs are available. Domain Sharding and Inline-CSS/Javascript shouldn't used with http/2.
https://teacherdadaplus.com/ 3.6.163.246
200

Critical: Some script Elements (type text/javascript) with a src-Attribute don't have a defer / async - Attribute. Loading and executing these JavaScripts blocks parsing and rendering the Html-Output. That's bad if your site is large or the connection is slow / mobile usage. Use "async" if the js file has only functions (so nothing is executed after parsing the file) or is independend. Use "defer" if the order of the scripts is important. All "defer" scripts are executed before the DOMContentLoaded event is fired. Check https://developer.mozilla.org/en-US/docs/Web/HTML/Element/script to see some details.: 13 script elements without defer/async.
https://www.teacherdadaplus.com/ 3.6.163.246
200

Critical: Some script Elements (type text/javascript) with a src-Attribute don't have a defer / async - Attribute. Loading and executing these JavaScripts blocks parsing and rendering the Html-Output. That's bad if your site is large or the connection is slow / mobile usage. Use "async" if the js file has only functions (so nothing is executed after parsing the file) or is independend. Use "defer" if the order of the scripts is important. All "defer" scripts are executed before the DOMContentLoaded event is fired. Check https://developer.mozilla.org/en-US/docs/Web/HTML/Element/script to see some details.: 13 script elements without defer/async.
Warning: CSS / JavaScript found without GZip support. Send these ressources with GZip. 10 external CSS / JavaScript files without GZip found - 29 with GZip, 39 complete
AGood: All images with internal compression not sent via GZip. Images (.png, .jpg) are already compressed, so an additional GZip isn't helpful. 63 images (type image/png, image/jpg) found without additional GZip. Not required because these images are already compressed
Warning: CSS / JavaScript files with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 13 external CSS / JavaScript files without Cache-Control-Header, 0 with Cache-Control, but no max-age, 15 with Cache-Control max-age too short (minimum 7 days), 24 with Cache-Control long enough, 52 complete.
Warning: Images with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 306 image files without Cache-Control-Header, 2 with Cache-Control, but no max-age, 14 with Cache-Control max-age too short (minimum 7 days), 0 with Cache-Control long enough, 322 complete.
AGood: All checked attribute values are enclosed in quotation marks (" or ').
AGood: Some img-elements have a valid alt-attribute.: 322 img-elements found, 320 img-elements with correct alt-attributes (defined, not an empty value).
Wrong: img-elements without alt-attribute or empty alt-attribute found. The alt-attribute ("alternative") is required and should describe the img. So Screenreader and search engines are able to use these informations.: 2 img-elements without alt-attribute, 0 img-elements with empty alt-attribute found.
AGood: Domainname is not on the "Specially Designated Nationals And Blocked Persons List" (SDN). That's an US-list of individuals and companies owned or controlled by, or acting for or on behalf of, targeted countries. It also lists individuals, groups, and entities, such as terrorists and narcotics traffickers designated under programs that are not country-specific. Collectively, such individuals and companies are called "Specially Designated Nationals" or "SDNs." Their assets are blocked and U.S. persons are generally prohibited from dealing with them. So if a domain name is on that list, it's impossible to create a Letsencrypt certificate with that domain name. Check the list manual - https://www.treasury.gov/resource-center/sanctions/sdn-list/pages/default.aspx
ADuration: 646757 milliseconds, 646.757 seconds


8. Connections

DomainIPPortCert.ProtocolKeyExchangeStrengthCipherStrengthHashAlgorithmOCSP stapling
Domain/KeyExchangeIP/StrengthPort/CipherCert./StrengthProtocol/HashAlgorithmOCSP stapling
teacherdadaplus.com
3.6.163.246
443
name does not match
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
not supported
ok
teacherdadaplus.com
3.6.163.246
443
name does not match
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
not supported
ok
no http/2 via ALPN 
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
no http/2 via ALPN
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
Chain (complete)
1CN=www.teacherdadaplus.com

2CN=E6, O=Let's Encrypt, C=US


www.teacherdadaplus.com
3.6.163.246
443
ok
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
not supported
ok

www.teacherdadaplus.com
3.6.163.246
443
ok
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
not supported
ok
no http/2 via ALPN 
SNI required
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
no http/2 via ALPN
SNI required
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
Chain (complete)
1CN=www.teacherdadaplus.com

2CN=E6, O=Let's Encrypt, C=US


teacherdadaplus.com
teacherdadaplus.com
443
name does not match
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
not supported
ok

teacherdadaplus.com
teacherdadaplus.com
443
name does not match
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
not supported
ok
no http/2 via ALPN 
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
no http/2 via ALPN
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
Chain (complete)
1CN=www.teacherdadaplus.com

2CN=E6, O=Let's Encrypt, C=US


www.teacherdadaplus.com
www.teacherdadaplus.com
443
ok
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
not supported
ok

www.teacherdadaplus.com
www.teacherdadaplus.com
443
ok
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
not supported
ok
no http/2 via ALPN 
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
no http/2 via ALPN
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
Chain (complete)
1CN=www.teacherdadaplus.com

2CN=E6, O=Let's Encrypt, C=US


3.6.163.246
3.6.163.246
443
name does not match
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
supported
ok

3.6.163.246
3.6.163.246
443
name does not match
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
supported
ok
no http/2 via ALPN 
Cert sent without SNI
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
no http/2 via ALPN
Cert sent without SNI
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
Chain (complete)
1CN=www.teacherdada.com

2CN=R3, O=Let's Encrypt, C=US


9. Certificates

1.
1.
CN=www.teacherdadaplus.com
11.06.2024
09.09.2024
expires in 86 days
www.teacherdadaplus.com - 1 entry
1.
1.
CN=www.teacherdadaplus.com
11.06.2024

09.09.2024
expires in 86 days
www.teacherdadaplus.com - 1 entry

KeyalgorithmEC Public Key (256 bit, prime256v1)
Signatur:ECDSA SHA384
Serial Number:03B9F383A46F09EF03458D4D4445D91F54B8
Thumbprint:B6772717FF53F4FE4101816B9CF7EF38CD1B45E9
SHA256 / Certificate:f4IUhg27JHVxVJCQCTa717evNPcLD82LrgxcGWlEiAE=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):2afe100721c1b8d3a2b6922a91e7ddff26e37dcc343c875a8f25706ef0ce6a38
SHA256 hex / Subject Public Key Information (SPKI):2afe100721c1b8d3a2b6922a91e7ddff26e37dcc343c875a8f25706ef0ce6a38 (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:http://e6.o.lencr.org
OCSP - must staple:no
Certificate Transparency:yes
Enhanced Key Usage:Serverauthentifizierung (1.3.6.1.5.5.7.3.1), Clientauthentifizierung (1.3.6.1.5.5.7.3.2)


2.
CN=E6, O=Let's Encrypt, C=US
13.03.2024
13.03.2027
expires in 1001 days


2.
CN=E6, O=Let's Encrypt, C=US
13.03.2024

13.03.2027
expires in 1001 days


KeyalgorithmEC Public Key (384 bit, secp384r1)
Signatur:SHA256 With RSA-Encryption
Serial Number:00B0573E9173972770DBB487CB3A452B38
Thumbprint:C94DC4831A901A9FEC0FB49B71BD49B5AAD4FAD0
SHA256 / Certificate:duniiKr8Djf0OQy/lGqtmX1cHJAbPOUT09j626viq4U=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):d016e1fe311948aca64f2de44ce86c9a51ca041df6103bb52a88eb3f761f57d7
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:Clientauthentifizierung (1.3.6.1.5.5.7.3.2), Serverauthentifizierung (1.3.6.1.5.5.7.3.1)


3.
CN=ISRG Root X1, O=Internet Security Research Group, C=US
04.06.2015
04.06.2035
expires in 4006 days


3.
CN=ISRG Root X1, O=Internet Security Research Group, C=US
04.06.2015

04.06.2035
expires in 4006 days


KeyalgorithmRSA encryption (4096 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:008210CFB0D240E3594463E0BB63828B00
Thumbprint:CABD2A79A1076A31F21D253635CB039D4329A5E8
SHA256 / Certificate:lrzsBiZJdvN0YHeazyjFp8/oo8Cq4RqP/O4FwL3fCMY=
SHA256 hex / Cert (DANE * 0 1):96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
SHA256 hex / PublicKey (DANE * 1 1):0b9fa5a59eed715c26c1020c711b4f6ec42d58b0015e14337a39dad301c5afc3
SHA256 hex / Subject Public Key Information (SPKI):0b9fa5a59eed715c26c1020c711b4f6ec42d58b0015e14337a39dad301c5afc3
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:


2.
1.
CN=www.teacherdada.com
19.04.2024
18.07.2024
expires in 33 days
teacherdada.com, www.teacherdada.com - 2 entries
2.
1.
CN=www.teacherdada.com
19.04.2024

18.07.2024
expires in 33 days
teacherdada.com, www.teacherdada.com - 2 entries

KeyalgorithmEC Public Key (256 bit, prime256v1)
Signatur:SHA256 With RSA-Encryption
Serial Number:0484D359641DBA43830C798EAAD818104259
Thumbprint:4A6A37D5420FA4A65E64EBD990FDF10433DBB37E
SHA256 / Certificate:xuCAzm/kvwm6bsXksEchB/cJ6zS49tdBlSa1XTZ+9CU=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):6471a6960e62eb6e5d8ac5da5f177b08353b55bf097f2ef2ea48661752429517
SHA256 hex / Subject Public Key Information (SPKI):6471a6960e62eb6e5d8ac5da5f177b08353b55bf097f2ef2ea48661752429517 (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Check unknown. No result 404 / 200
OCSP - Url:http://r3.o.lencr.org
OCSP - must staple:yes
Certificate Transparency:yes
Enhanced Key Usage:Serverauthentifizierung (1.3.6.1.5.5.7.3.1), Clientauthentifizierung (1.3.6.1.5.5.7.3.2)


2.
CN=R3, O=Let's Encrypt, C=US
04.09.2020
15.09.2025
expires in 457 days


2.
CN=R3, O=Let's Encrypt, C=US
04.09.2020

15.09.2025
expires in 457 days


KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:00912B084ACF0C18A753F6D62E25A75F5A
Thumbprint:A053375BFE84E8B748782C7CEE15827A6AF5A405
SHA256 / Certificate:Z63RFmsCCuYbj1/JaBPATCqliZYHloZVcqPH5zdhPf0=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):8d02536c887482bc34ff54e41d2ba659bf85b341a0a20afadb5813dcfbcf286d
SHA256 hex / Subject Public Key Information (SPKI):8d02536c887482bc34ff54e41d2ba659bf85b341a0a20afadb5813dcfbcf286d
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:Clientauthentifizierung (1.3.6.1.5.5.7.3.2), Serverauthentifizierung (1.3.6.1.5.5.7.3.1)


3.
CN=ISRG Root X1, O=Internet Security Research Group, C=US
04.06.2015
04.06.2035
expires in 4006 days


3.
CN=ISRG Root X1, O=Internet Security Research Group, C=US
04.06.2015

04.06.2035
expires in 4006 days


KeyalgorithmRSA encryption (4096 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:008210CFB0D240E3594463E0BB63828B00
Thumbprint:CABD2A79A1076A31F21D253635CB039D4329A5E8
SHA256 / Certificate:lrzsBiZJdvN0YHeazyjFp8/oo8Cq4RqP/O4FwL3fCMY=
SHA256 hex / Cert (DANE * 0 1):96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
SHA256 hex / PublicKey (DANE * 1 1):0b9fa5a59eed715c26c1020c711b4f6ec42d58b0015e14337a39dad301c5afc3
SHA256 hex / Subject Public Key Information (SPKI):0b9fa5a59eed715c26c1020c711b4f6ec42d58b0015e14337a39dad301c5afc3
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:



10. Last Certificates - Certificate Transparency Log Check

1. Source CertSpotter - active certificates (one check per day)

Issuerlast 7 daysactivenum Certs
CN=E6, O=Let's Encrypt, C=US
2
2
2
CN=E5, O=Let's Encrypt, C=US
1
1
1
//certs.godaddy.com/repository/, CN=Go Daddy Secure Certificate Authority - G2
0
1
1
CN=R3, O=Let's Encrypt, C=US
0
1
1

CertSpotter-IdIssuernot beforenot afterDomain namesLE-Duplicatenext LE
7481330641
leaf cert
CN=E6, O=Let's Encrypt, C=US
2024-06-11 08:30:10
2024-09-09 08:30:09
teacherdadaplus.com, www.teacherdadaplus.com - 2 entries


7481325406
leaf cert
CN=E6, O=Let's Encrypt, C=US
2024-06-11 08:26:54
2024-09-09 08:26:53
www.teacherdadaplus.com - 1 entries


7476430004
leaf cert
CN=E5, O=Let's Encrypt, C=US
2024-06-10 12:09:17
2024-09-08 12:09:16
teacherdadaplus.com - 1 entries


7436293182
leaf cert
CN=R3, O=Let's Encrypt, C=US
2024-06-03 12:07:59
2024-09-01 12:07:58
teacherdadaplus.com, www.teacherdadaplus.com - 2 entries


7130790569
precert
//certs.godaddy.com/repository/, CN=Go Daddy Secure Certificate Authority - G2
2024-04-15 09:19:28
2025-04-15 09:19:28
teacherdadaplus.com, www.teacherdadaplus.com - 2 entries



2. Source crt.sh - old and new certificates, sometimes very slow - only certificates with "not after" > of the last months are listed

No CRT - CT-Log entries found


11. Html-Content - Entries

Summary

Subresource Integrity (SRI)
DomainnameHtmlElementrel/property∑ size∑ problems∑ int.∑ ext.∑ Origin poss.∑ SRI ParseErrors∑ SRI valid∑ SRI missing
https://teacherdadaplus.com/
3.6.163.246
a

211

0


0
0
0


form

19
14,208 Bytes
0
1
0
0
0
0


iframe

1

0


0
0
0


img

161
3,627,203 Bytes
0
142
19
0
0
0


link
stylesheet
13
58,893 Bytes
0
3
10
10
0
8
-2

link
other
5
10,446 Bytes
0
4
0
0
0
0


meta
apple
1

0


0
0
0


meta
og
5
82,353 Bytes
0
2
0
0
0
0


meta
other
12

0


0
0
0


script

13
407,077 Bytes
0
10
3
3
0
1
-2
https://www.teacherdadaplus.com/
3.6.163.246
a

211

0


0
0
0


form

19

1
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Cache-Control: public, max-age=31536000, s-maxage=31536000, immutable - with long duration found.
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Server-Header Access-Control-Allow-Origin: *
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Cache-Control: max-age=10800 - max-age too short.
GZip required: 18053 Bytes




local SRI possible, possible hash-values:

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Cache-Control: max-age=10800 - max-age too short.
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Cache-Control: max-age=10800 - max-age too short.
GZip required: 44348 Bytes




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alt: pencil-iconimage/png, missing X-Content-Type-Options nosniff

No Cache-Control header
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alt: pencil-iconimage/png, missing X-Content-Type-Options nosniff

No Cache-Control header
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alt: pencil-iconimage/png, missing X-Content-Type-Options nosniff

No Cache-Control header
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alt: banner-imageimage/png/text/pdf, missing X-Content-Type-Options nosniff

No Cache-Control header
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alt: Social Media Marketing Mastery Bundleimage/png/text/pdf, missing X-Content-Type-Options nosniff

No Cache-Control header
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alt: Fullstack web development : CSS JavaScript and PHP - MySQLimage/png/text/pdf, missing X-Content-Type-Options nosniff

No Cache-Control header
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alt: Python Basics Coding for Absolute Beginners : Programmingimage/png/text/pdf, missing X-Content-Type-Options nosniff

No Cache-Control header
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alt: Web Development Course from Scratch: Bootcampimage/png/text/pdf, missing X-Content-Type-Options nosniff

No Cache-Control header
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alt: FL Studio Mobile - Music Production in Android/iOS - Hindiimage/png/text/pdf, missing X-Content-Type-Options nosniff

No Cache-Control header
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alt: Photography Course for Beginners: Guide to Shoot like a proimage/png/text/pdf, missing X-Content-Type-Options nosniff

No Cache-Control header
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alt: Complete Basic of Pharma Export Courseimage/png/text/pdf, missing X-Content-Type-Options nosniff

No Cache-Control header
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alt: The Art of Nonverbal Communication: Mastering Body Languageimage/png/text/pdf, missing X-Content-Type-Options nosniff

No Cache-Control header
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alt: Refine Your Image: A Comprehensive Personality Development Courseimage/png/text/pdf, missing X-Content-Type-Options nosniff

No Cache-Control header
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Server-Header Access-Control-Allow-Origin: not found
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alt: Mastering Advanced Java with Object-Oriented Programmingimage/png/text/pdf, missing X-Content-Type-Options nosniff

No Cache-Control header
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https://teacherdada.fra1.digitaloceanspaces.com/uploads/thumbnails/course_thumbnails/240210185503dm.webp
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alt: Advance Digital Marketing Courseimage/png/text/pdf, missing X-Content-Type-Options nosniff

No Cache-Control header
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alt: Mastering Social Media Marketing For Business Growthimage/png/text/pdf, missing X-Content-Type-Options nosniff

No Cache-Control header
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Server-Header Access-Control-Allow-Origin: not found
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alt: Statistics And Hypothesis Testing For Data Scienceimage/png/text/pdf, missing X-Content-Type-Options nosniff

No Cache-Control header
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alt: Machine Learning using Pythonimage/png/text/pdf, missing X-Content-Type-Options nosniff

No Cache-Control header
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alt: Foundation In Digital Marketingimage/png/text/pdf, missing X-Content-Type-Options nosniff

No Cache-Control header
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alt: Skilldegree in Digital Marketingimage/png/text/pdf, missing X-Content-Type-Options nosniff

No Cache-Control header
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Server-Header Access-Control-Allow-Origin: not found
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alt: Advance Digital Marketing Courseimage/png/text/pdf, missing X-Content-Type-Options nosniff

No Cache-Control header
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Server-Header Access-Control-Allow-Origin: not found
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No Cache-Control header
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Server-Header Access-Control-Allow-Origin: not found
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img
src
https://teacherdadaplus.com/assets/frontend/latest/images/google-play-badge.png
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: play-store-btn.png






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/assets/frontend/tdnew/img/become-01.png
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: mentor-img






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/assets/frontend/tdnew/img/become-02.png
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: mentor-img






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/assets/frontend/tdnew/img/certificate-icon.svg
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: gratuate-icon






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/assets/frontend/tdnew/img/cources-icon.svg
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: cources-icon






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/assets/frontend/tdnew/img/gratuate-icon.svg
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: gratuate-icon






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/assets/frontend/tdnew/img/home-level-up/five.png
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: certified-img






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/assets/frontend/tdnew/img/home-level-up/four.png
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: certified-img






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/assets/frontend/tdnew/img/home-level-up/one.png
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: certified-img






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/assets/frontend/tdnew/img/home-level-up/six.png
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: certified-img






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/assets/frontend/tdnew/img/home-level-up/three.png
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: certified-img






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/assets/frontend/tdnew/img/home-level-up/two.png
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: certified-img






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/assets/frontend/tdnew/img/icon/icon-01.svg
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
14
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: course






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/assets/frontend/tdnew/img/icon/mobile.svg
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
6
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: course






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/assets/frontend/tdnew/img/icon/timer.svg
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
18
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: course






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/assets/frontend/tdnew/img/icon/video.svg
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
20
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: course






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/assets/frontend/tdnew/img/pencil-icon.svg
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: pencil-icon






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/assets/frontend/tdnew/img/td_logo.png
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
2
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: Logo






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/assets/lessons/load.gif
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: load-gif






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/thumbnails/category_thumbnails/080360a8923e5686dd9102b7d5086ec0.webp
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: personality-and-communication






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/thumbnails/category_thumbnails/0c2bb1935a3d75815ee5749461a2d189.webp
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: lifestyle






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/thumbnails/category_thumbnails/17a4cfb825425227f39a298cd5d8986a.webp
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: finance






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/thumbnails/category_thumbnails/21c680cc66b51fe8e9287b7004c5c385.webp
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: photography-and-editing






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/thumbnails/category_thumbnails/29614f2c8944fb70f0ac3620480ae8d9.webp
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: software-and-office-productivity






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/thumbnails/category_thumbnails/55547820da9ce4a4952878c21a410fe0.webp
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: performing-arts






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/thumbnails/category_thumbnails/8388cb1110ef02ab39dca097b60b03f4.webp
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: it-and-development






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/thumbnails/category_thumbnails/9d3d9cdb22fee16fa329b38bd0b81af8.webp
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: teaching-and-academics






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/thumbnails/category_thumbnails/b4dc406fc2661b978a988e8f70e22f19.webp
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: business






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/thumbnails/category_thumbnails/ba60d6cfc800a936f43a894642a94a9c.webp
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: health-fitness-amp-yoga






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/thumbnails/category_thumbnails/da57809b8de654363c3e14990b9ce020.webp
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: marketing






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/thumbnails/category_thumbnails/dd16a0b3d3327dde6178dc71918ce8e9.webp
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: miscellaneous






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/user_image/1035.jpg
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: course






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/user_image/1159.webp
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: course






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/user_image/1159.webp
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: pencil-icon






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/user_image/1171.webp
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
4
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: course






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/user_image/1171.webp
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: pencil-icon






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/user_image/1172.webp
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: pencil-icon






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/user_image/1184.webp
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: pencil-icon






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/user_image/1392.webp
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: pencil-icon






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/user_image/1426.webp
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
2
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: course






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/user_image/172.webp
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: pencil-icon






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/user_image/1997.webp
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
2
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: course






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/user_image/2020.webp
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: pencil-icon






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/user_image/2021.webp
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: course






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/user_image/2055.webp
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: course






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/user_image/2116.webp
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
2
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: course






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/user_image/2116.webp
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: pencil-icon






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/user_image/2196.webp
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: pencil-icon






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/user_image/2202.webp
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: pencil-icon






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/user_image/2262.webp
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
2
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: course






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/user_image/315.webp
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: course






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



img
src
https://teacherdadaplus.com/uploads/user_image/964.jpg
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
alt: course






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



link
apple-touch-icon-precomposed
https://teacherdadaplus.com/images/logo512.png
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



link
canonical
https://www.teacherdadaplus.com/


1
ok








link
shortcut icon
assets/img/favicon.svg
200

1
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text/html; charset=UTF-8, missing X-Content-Type-Options nosniff

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link
shortcut icon
https://teacherdadaplus.com/images/logo196.png
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UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



link
shortcut icon
https://teacherdadaplus.com/uploads/system/favicon.png
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UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
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UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



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Server-Header Access-Control-Allow-Origin: *
Cross-Origin Resource Sharing (CORS) supported

integrity: sha512-UuQ/zJlbMVAw/UU8vVBhnI4op+/tFOpQZVT+FormmIEhRSCnJWyHiBbEVgM4Uztsht41f3FzVWgLuwzUqOObKw==
crossorigin: anonymous
No SRI Parse errorvalid



link
stylesheet
https://cdnjs.cloudflare.com/ajax/libs/OwlCarousel2/2.3.4/assets/owl.carousel.min.css
200

1
ok
text/css; charset=utf-8, X-Content-Type-Options nosniff found

Cache-Control: public, max-age=30672000 - with long duration found.
GZip: 1059/3351 Bytes




Server-Header Access-Control-Allow-Origin: *
Cross-Origin Resource Sharing (CORS) supported

integrity: sha512-tS3S5qG0BlhnQROyJXvNjeEM4UpMXHrQfTGmbQ1gKmelCxlSEBUaxhRBj/EFTzpbP4RVSrpEikbmdJobCvhE3g==
crossorigin: anonymous
No SRI Parse errorvalid


Content loaded via url("...")

owl.video.play.png1

link
stylesheet
https://cdnjs.cloudflare.com/ajax/libs/OwlCarousel2/2.3.4/assets/owl.theme.default.min.css
200

1
ok
text/css; charset=utf-8, X-Content-Type-Options nosniff found

Cache-Control: public, max-age=30672000 - with long duration found.
GZip: 485/1013 Bytes




Server-Header Access-Control-Allow-Origin: *
Cross-Origin Resource Sharing (CORS) supported

integrity: sha512-sMXtMNL1zRzolHYKEujM2AqCLUR9F2C4/05cdbxjjLSRvMQIciEPCQZo++nk7go3BtSuK9kfa/s+a4f4i5pLkw==
crossorigin: anonymous
No SRI Parse errorvalid



link
stylesheet
https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.13/css/select2.min.css
200

1
ok
text/css; charset=utf-8, X-Content-Type-Options nosniff found

Cache-Control: public, max-age=30672000 - with long duration found.
GZip: 1984/14966 Bytes




Server-Header Access-Control-Allow-Origin: *
Cross-Origin Resource Sharing (CORS) supported

integrity: sha512-nMNlpuaDPrqlEls3IX/Q56H36qvBASwb3ipuo3MxeWbsQB1881ox0cRv7UPTgBlriqoynt35KjEwgGUeUXIPnw==
crossorigin: anonymous
No SRI Parse errorvalid



link
stylesheet
https://cdnjs.cloudflare.com/ajax/libs/slick-carousel/1.9.0/slick.css
200

1
ok
text/css; charset=utf-8, X-Content-Type-Options nosniff found

Cache-Control: public, max-age=30672000 - with long duration found.
GZip: 572/1776 Bytes




Server-Header Access-Control-Allow-Origin: *
Cross-Origin Resource Sharing (CORS) supported

integrity: sha512-wR4oNhLBHf7smjy0K4oqzdWumd+r5/+6QO/vDda76MW5iug4PT7v86FoEkySIJft3XA0Ae6axhIvHrqwm793Nw==
crossorigin: anonymous
No SRI Parse errorvalid



link
stylesheet
https://cdnjs.cloudflare.com/ajax/libs/slick-carousel/1.9.0/slick-theme.css
200

1
ok
text/css; charset=utf-8, X-Content-Type-Options nosniff found

Cache-Control: public, max-age=30672000 - with long duration found.
GZip: 867/3145 Bytes




Server-Header Access-Control-Allow-Origin: *
Cross-Origin Resource Sharing (CORS) supported

integrity: sha512-6lLUdeQ5uheMFbWm3CP271l14RsX1xtx+J5x2yeIDkkiBpeVTNhTqijME7GgRKKi6hCqovwCoBTlRBEC20M8Mg==
crossorigin: anonymous
No SRI Parse errorvalid


Content loaded via url("...")

./ajax-loader.gif1
./fonts/slick.eot1
./fonts/slick.eot?#iefix1
./fonts/slick.svg#slick1
./fonts/slick.ttf1
./fonts/slick.woff1

link
stylesheet
https://teacherdadaplus.com/assets/frontend/tdnew/css/style.css
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



link
stylesheet
https://teacherdadaplus.com/assets/frontend/tdnew/plugins/aos/aos.css
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



link
stylesheet
https://teacherdadaplus.com/assets/frontend/tdnew/plugins/feather/feather.css
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



meta

utf-8


1
ok








meta
fb:app_id
343686927489140


1
ok








meta
og:description
Empower your learning journey with Teacherdadaplus.com, India's leading online teaching platform. Find qualified tutors, interactive courses, and personalized learning tools


1
ok








meta
og:image
https://teacherdadaplus.com/assets/frontend/latest/images/home/teacherdada-banner.jpg
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



meta
og:title
TeacherDadaPlus: The Premier Online Learning Platform in India


1
ok








meta
og:type
article


1
ok








meta
og:url
https://teacherdadaplus.com/
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



meta
twitter:card
summary_large_image


1
ok








meta
twitter:description
Empower your learning journey with Teacherdadaplus.com, India's leading online teaching platform. Find qualified tutors, interactive courses, and personalized learning tools


1
ok








meta
twitter:image
https://teacherdadaplus.com/assets/frontend/latest/images/home/teacherdada-banner.jpg


1
ok








meta
twitter:title
TeacherDadaPlus: The Premier Online Learning Platform in India


1
ok








meta
twitter:url
https://teacherdadaplus.com/


1
ok








meta
X-UA-Compatible
IE=edge


1
ok








meta
apple-mobile-web-app-title
Add to Home


1
ok








meta
author
Kushal Dubal


1
ok








meta
description
Empower your learning journey with Teacherdadaplus.com, India's leading online teaching platform. Find qualified tutors, interactive courses, and personalized learning tools


1
ok








meta
keywords
online learning platform India,online tutoring India,online courses India,qualified tutors India,personalized learning India,educational technology India,Teacherdada.com


1
ok








meta
viewport
width=device-width, initial-scale=1.0


1
ok








script
src
//cdn.jsdelivr.net/npm/alertifyjs@1.13.1/build/alertify.min.js
200

1
ok
Missing defer / async attribute. application/javascript; charset=utf-8, X-Content-Type-Options nosniff found

Cache-Control: public, max-age=31536000, s-maxage=31536000, immutable - with long duration found.
GZip: 10162/36978 Bytes




Server-Header Access-Control-Allow-Origin: *
Cross-Origin Resource Sharing (CORS) supported

missing crossorigin=anonymous|use-credentials and integrity - attribute, possible hash-values:

sha256-QFMAm4xflERDUh0NdY1pa0+MovGNNdM8gda//qDRH64=
sha384-3kOl9EzcOjFxTuc9knN784SI3NaWSFtoc4bHR9P8rsADaAZx9PC++m1OimQhoCCb
sha512-JnjG+Wt53GspUQXQhc+c4j8SBERsgJAoHeehagKHlxQN+MtCCmFDghX9/AcbkkNRZptyZU4zC8utK59M5L45Iw==

<script src="//cdn.jsdelivr.net/npm/alertifyjs@1.13.1/build/alertify.min.js" crossorigin="anonymous" integrity="sha256-QFMAm4xflERDUh0NdY1pa0+MovGNNdM8gda//qDRH64=" />




script
src
https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js
200

1
ok
Missing defer / async attribute. application/javascript; charset=utf-8, X-Content-Type-Options nosniff found

Cache-Control: public, max-age=31536000, s-maxage=31536000, immutable - with long duration found.
GZip: 23858/80721 Bytes




Server-Header Access-Control-Allow-Origin: *
Cross-Origin Resource Sharing (CORS) supported

integrity: sha384-YvpcrYf0tY3lHB60NNkmXc5s9fDVZLESaAA55NDzOxhy9GkcIdslK1eN7N6jIeHz
crossorigin: anonymous
No SRI Parse errorvalid



script
src
https://rhashemian.github.io/js/countdown.js
200

1
ok
Missing defer / async attribute. application/javascript; charset=utf-8, missing X-Content-Type-Options nosniff

Cache-Control: max-age=600 - max-age too short.
GZip: 993/2427 Bytes




Server-Header Access-Control-Allow-Origin: *
Cross-Origin Resource Sharing (CORS) supported

missing crossorigin=anonymous|use-credentials and integrity - attribute, possible hash-values:

sha256-t0jGM6LICG8JvOWyCqn3y5JADRFNzTcTp4HLbm7/AnI=
sha384-JUp8J+V1965DGmavnjoBviOe89yc2qqw7dihw03Rb8XzkGleuRVkqU8F8ZTmCX78
sha512-icfYUjK7+eLDVAv8vsdVSuyfH3tWtoU0H0QuDArshrXEeEWDTqhQR8eXj24aIPoDWUsw9kOQEmqyIDUWjoJttw==

<script src="https://rhashemian.github.io/js/countdown.js" crossorigin="anonymous" integrity="sha256-t0jGM6LICG8JvOWyCqn3y5JADRFNzTcTp4HLbm7/AnI=" />




script
src
https://teacherdadaplus.com/assets/frontend/tdnew/js/jquery.counterup.min.js
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
Missing defer / async attribute.






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



script
src
https://teacherdadaplus.com/assets/frontend/tdnew/js/jquery.waypoints.js
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
Missing defer / async attribute.






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



script
src
https://teacherdadaplus.com/assets/frontend/tdnew/js/jquery-3.7.1.min.js
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
Missing defer / async attribute.






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



script
src
https://teacherdadaplus.com/assets/frontend/tdnew/js/owl.carousel.min.js
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
Missing defer / async attribute.






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



script
src
https://teacherdadaplus.com/assets/frontend/tdnew/js/script.js
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
Missing defer / async attribute.






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



script
src
https://teacherdadaplus.com/assets/frontend/tdnew/plugins/aos/aos.js
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
Missing defer / async attribute.






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



script
src
https://teacherdadaplus.com/assets/frontend/tdnew/plugins/select2/js/select2.min.js
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
Missing defer / async attribute.






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



script
src
https://teacherdadaplus.com/assets/frontend/tdnew/plugins/slick/slick.js
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
Missing defer / async attribute.






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



script
src
https://teacherdadaplus.com/assets/frontend/tdnew/plugins/theia-sticky-sidebar/ResizeSensor.js
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
Missing defer / async attribute.






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



script
src
https://teacherdadaplus.com/assets/frontend/tdnew/plugins/theia-sticky-sidebar/theia-sticky-sidebar.js
-16
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
1
UnknownError - The SSL connection could not be established, see inner exception. - The remote certificate was rejected by the provided RemoteCertificateValidationCallback - Certificate invalid
Missing defer / async attribute.






Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



12. Nameserver - IP-Adresses

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers: ns-1241.awsdns-27.org, ns-1581.awsdns-05.co.uk, ns-316.awsdns-39.com, ns-579.awsdns-08.net

QNr.DomainTypeNS used
1
org
NS
l.root-servers.net (2001:500:9f::42)

Answer: a0.org.afilias-nst.info, a2.org.afilias-nst.info, b0.org.afilias-nst.org, b2.org.afilias-nst.org, c0.org.afilias-nst.info, d0.org.afilias-nst.org
2
ns-1241.awsdns-27.org
NS
a0.org.afilias-nst.info (2001:500:e::1)

Answer: g-ns-1054.awsdns-27.org, g-ns-155.awsdns-27.org, g-ns-1627.awsdns-27.org, g-ns-733.awsdns-27.org

Answer: g-ns-1054.awsdns-27.org
205.251.196.30, 2600:9000:5304:1e00::1

Answer: g-ns-155.awsdns-27.org
205.251.192.155, 2600:9000:5300:9b00::1

Answer: g-ns-1627.awsdns-27.org
205.251.198.91, 2600:9000:5306:5b00::1

Answer: g-ns-733.awsdns-27.org
205.251.194.221, 2600:9000:5302:dd00::1
3
uk
NS
a.root-servers.net (2001:503:ba3e::2:30)

Answer: dns1.nic.uk, dns2.nic.uk, dns3.nic.uk, dns4.nic.uk, nsa.nic.uk, nsb.nic.uk, nsc.nic.uk, nsd.nic.uk
4
ns-1581.awsdns-05.co.uk
NS
dns1.nic.uk (2a01:618:400::1)

Answer: g-ns-1480.awsdns-05.co.uk, g-ns-1801.awsdns-05.co.uk, g-ns-325.awsdns-05.co.uk, g-ns-901.awsdns-05.co.uk

Answer: g-ns-1480.awsdns-05.co.uk
205.251.197.200, 2600:9000:5305:c800::1

Answer: g-ns-1801.awsdns-05.co.uk
205.251.199.9, 2600:9000:5307:900::1

Answer: g-ns-325.awsdns-05.co.uk
205.251.193.69, 2600:9000:5301:4500::1

Answer: g-ns-901.awsdns-05.co.uk
205.251.195.133, 2600:9000:5303:8500::1
5
com
NS
l.root-servers.net (2001:500:9f::42)

Answer: a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net, f.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net, j.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net
6
ns-316.awsdns-39.com
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: g-ns-1191.awsdns-39.com, g-ns-1767.awsdns-39.com, g-ns-40.awsdns-39.com, g-ns-615.awsdns-39.com

Answer: g-ns-1191.awsdns-39.com
205.251.196.167, 2600:9000:5304:a700::1

Answer: g-ns-1767.awsdns-39.com
205.251.198.231, 2600:9000:5306:e700::1

Answer: g-ns-40.awsdns-39.com
205.251.192.40, 2600:9000:5300:2800::1

Answer: g-ns-615.awsdns-39.com
205.251.194.103, 2600:9000:5302:6700::1
7
net
NS
g.root-servers.net (2001:500:12::d0d)

Answer: a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net, f.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net, j.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net
8
ns-579.awsdns-08.net
NS
l.gtld-servers.net (2001:500:d937::30)

Answer: g-ns-1352.awsdns-08.net, g-ns-1928.awsdns-08.net, g-ns-457.awsdns-08.net, g-ns-778.awsdns-08.net

Answer: g-ns-1352.awsdns-08.net
205.251.197.72, 2600:9000:5305:4800::1

Answer: g-ns-1928.awsdns-08.net
205.251.199.136, 2600:9000:5307:8800::1

Answer: g-ns-457.awsdns-08.net
205.251.193.201, 2600:9000:5301:c900::1

Answer: g-ns-778.awsdns-08.net
205.251.195.10, 2600:9000:5303:a00::1
9
ns-1241.awsdns-27.org: 205.251.196.217
A
g-ns-1054.awsdns-27.org (2600:9000:5304:1e00::1)
10
ns-1241.awsdns-27.org: 2600:9000:5304:d900::1
AAAA
g-ns-1054.awsdns-27.org (2600:9000:5304:1e00::1)
11
ns-1581.awsdns-05.co.uk: 205.251.198.45
A
g-ns-1480.awsdns-05.co.uk (2600:9000:5305:c800::1)
12
ns-1581.awsdns-05.co.uk: 2600:9000:5306:2d00::1
AAAA
g-ns-1480.awsdns-05.co.uk (2600:9000:5305:c800::1)
13
ns-316.awsdns-39.com: 205.251.193.60
A
g-ns-1191.awsdns-39.com (2600:9000:5304:a700::1)
14
ns-316.awsdns-39.com: 2600:9000:5301:3c00::1
AAAA
g-ns-1191.awsdns-39.com (2600:9000:5304:a700::1)
15
ns-579.awsdns-08.net: 205.251.194.67
A
g-ns-1352.awsdns-08.net (2600:9000:5305:4800::1)
16
ns-579.awsdns-08.net: 2600:9000:5302:4300::1
AAAA
g-ns-1352.awsdns-08.net (2600:9000:5305:4800::1)


13. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
www.teacherdadaplus.com



1
0
teacherdadaplus.com
0

no CAA entry found
1
0
com
0

no CAA entry found
1
0


14. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
teacherdadaplus.com
D9846562
ok
1
0
teacherdadaplus.com
google-site-verification=TP0TczD42YC6LnGwrCUOAtEOoljXp5ivnN5PG-4NeJM
ok
1
0
teacherdadaplus.com
v=spf1 include:secureserver.net -all
ok
1
0
www.teacherdadaplus.com
D9846562
ok
1
0
www.teacherdadaplus.com
google-site-verification=TP0TczD42YC6LnGwrCUOAtEOoljXp5ivnN5PG-4NeJM
ok
1
0
www.teacherdadaplus.com
v=spf1 include:secureserver.net -all
ok
1
0
_acme-challenge.teacherdadaplus.com

missing entry or wrong length
1
0
_acme-challenge.www.teacherdadaplus.com

missing entry or wrong length
1
0
_acme-challenge.teacherdadaplus.com.teacherdadaplus.com

perhaps wrong
1
0
_acme-challenge.www.teacherdadaplus.com.teacherdadaplus.com

perhaps wrong
1
0
_acme-challenge.www.teacherdadaplus.com.www.teacherdadaplus.com

perhaps wrong
1
0


15. DomainService - Entries

TypeDomainPrefValueDNS-errornum AnswersStatusDescription
MX

teacherdadaplus.com
0
smtp.secureserver.net
02ok

A


92.204.80.0
01ok

CNAME


00ok
MX

teacherdadaplus.com
10
mailstore1.secureserver.net
02ok

A


92.204.80.3
01ok

CNAME


00ok
_dmarc
TXT
_dmarc.teacherdadaplus.com

v=DMARC1; p=quarantine; rua=mailto:teacherdadaedu@gmail.com
01ok



16. Cipher Suites

Summary
DomainIPPortnum CipherstimeStd.ProtocolForward Secrecy
teacherdadaplus.com
3.6.163.246
443
3 Ciphers200.13 sec
0 without, 3 FS
100.00 %
www.teacherdadaplus.com
3.6.163.246
443
3 Ciphers77.52 sec
0 without, 3 FS
100.00 %
Complete

2
6 Ciphers277.65 sec138.82 sec/Check
0 without, 6 FS
100.00 %

Details
DomainIPPortCipher (OpenSsl / IANA)
teacherdadaplus.com
3.6.163.246
443
ECDHE-ECDSA-CHACHA20-POLY1305
(Recommended)
TLSv1.2
0xCC,0xA9
FS
3 Ciphers, 200.13 sec
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
ECDH
ECDSA
CHACHA20/POLY1305(256)
AEAD



ECDHE-ECDSA-AES256-GCM-SHA384
(Recommended)
TLSv1.2
0xC0,0x2C
FS

TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
ECDH
ECDSA
AESGCM(256)
AEAD



ECDHE-ECDSA-AES128-GCM-SHA256
(Recommended)
TLSv1.2
0xC0,0x2B
FS

TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
ECDH
ECDSA
AESGCM(128)
AEAD
www.teacherdadaplus.com
3.6.163.246
443
ECDHE-ECDSA-CHACHA20-POLY1305
(Recommended)
TLSv1.2
0xCC,0xA9
FS
3 Ciphers, 77.52 sec
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
ECDH
ECDSA
CHACHA20/POLY1305(256)
AEAD



ECDHE-ECDSA-AES256-GCM-SHA384
(Recommended)
TLSv1.2
0xC0,0x2C
FS

TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
ECDH
ECDSA
AESGCM(256)
AEAD



ECDHE-ECDSA-AES128-GCM-SHA256
(Recommended)
TLSv1.2
0xC0,0x2B
FS

TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
ECDH
ECDSA
AESGCM(128)
AEAD


17. Portchecks

DomainIPPortDescriptionResultAnswer
teacherdadaplus.com
3.6.163.246
21
FTP



teacherdadaplus.com
3.6.163.246
21
FTP



teacherdadaplus.com
3.6.163.246
22
SSH
open
SSH-2.0-OpenSSH_8.9p1 Ubuntu-3ubuntu0.6

teacherdadaplus.com
3.6.163.246
22
SSH
open
SSH-2.0-OpenSSH_8.9p1 Ubuntu-3ubuntu0.6
Bad: SSH without DNS SSHFP Record found
Possible DNS SSHFP Entries:
teacherdadaplus.com IN SSHFP 3 2 8e222e6b65b1cb7d39cf1c8dd2805875db850761f07c34b4740d79830d3c6362
teacherdadaplus.com IN SSHFP 4 2 a2e1b0c0aea5c5c6778a5ba286ca9a823ab6472fe306a871dfe531a66937709f
teacherdadaplus.com
3.6.163.246
25
SMTP



teacherdadaplus.com
3.6.163.246
25
SMTP



teacherdadaplus.com
3.6.163.246
53
DNS



teacherdadaplus.com
3.6.163.246
53
DNS



teacherdadaplus.com
3.6.163.246
110
POP3



teacherdadaplus.com
3.6.163.246
110
POP3



teacherdadaplus.com
3.6.163.246
143
IMAP



teacherdadaplus.com
3.6.163.246
143
IMAP



teacherdadaplus.com
3.6.163.246
465
SMTP (encrypted)



teacherdadaplus.com
3.6.163.246
465
SMTP (encrypted)



teacherdadaplus.com
3.6.163.246
587
SMTP (encrypted, submission)



teacherdadaplus.com
3.6.163.246
587
SMTP (encrypted, submission)



teacherdadaplus.com
3.6.163.246
993
IMAP (encrypted)



teacherdadaplus.com
3.6.163.246
993
IMAP (encrypted)



teacherdadaplus.com
3.6.163.246
995
POP3 (encrypted)



teacherdadaplus.com
3.6.163.246
995
POP3 (encrypted)



teacherdadaplus.com
3.6.163.246
1433
MS SQL



teacherdadaplus.com
3.6.163.246
1433
MS SQL



teacherdadaplus.com
3.6.163.246
2082
cPanel (http)



teacherdadaplus.com
3.6.163.246
2082
cPanel (http)



teacherdadaplus.com
3.6.163.246
2083
cPanel (https)



teacherdadaplus.com
3.6.163.246
2083
cPanel (https)



teacherdadaplus.com
3.6.163.246
2086
WHM (http)



teacherdadaplus.com
3.6.163.246
2086
WHM (http)



teacherdadaplus.com
3.6.163.246
2087
WHM (https)



teacherdadaplus.com
3.6.163.246
2087
WHM (https)



teacherdadaplus.com
3.6.163.246
2089
cPanel Licensing



teacherdadaplus.com
3.6.163.246
2089
cPanel Licensing



teacherdadaplus.com
3.6.163.246
2095
cPanel Webmail (http)



teacherdadaplus.com
3.6.163.246
2095
cPanel Webmail (http)



teacherdadaplus.com
3.6.163.246
2096
cPanel Webmail (https)



teacherdadaplus.com
3.6.163.246
2096
cPanel Webmail (https)



teacherdadaplus.com
3.6.163.246
2222
DirectAdmin (http)



teacherdadaplus.com
3.6.163.246
2222
DirectAdmin (http)



teacherdadaplus.com
3.6.163.246
2222
DirectAdmin (https)



teacherdadaplus.com
3.6.163.246
2222
DirectAdmin (https)



teacherdadaplus.com
3.6.163.246
3306
mySql



teacherdadaplus.com
3.6.163.246
3306
mySql



teacherdadaplus.com
3.6.163.246
5224
Plesk Licensing



teacherdadaplus.com
3.6.163.246
5224
Plesk Licensing



teacherdadaplus.com
3.6.163.246
5432
PostgreSQL



teacherdadaplus.com
3.6.163.246
5432
PostgreSQL



teacherdadaplus.com
3.6.163.246
8080
Ookla Speedtest (http)



teacherdadaplus.com
3.6.163.246
8080
Ookla Speedtest (http)



teacherdadaplus.com
3.6.163.246
8080
Ookla Speedtest (https)



teacherdadaplus.com
3.6.163.246
8080
Ookla Speedtest (https)



teacherdadaplus.com
3.6.163.246
8083
VestaCP http



teacherdadaplus.com
3.6.163.246
8083
VestaCP http



teacherdadaplus.com
3.6.163.246
8083
VestaCP https



teacherdadaplus.com
3.6.163.246
8083
VestaCP https



teacherdadaplus.com
3.6.163.246
8443
Plesk Administration (https)



teacherdadaplus.com
3.6.163.246
8443
Plesk Administration (https)



teacherdadaplus.com
3.6.163.246
8447
Plesk Installer + Updates



teacherdadaplus.com
3.6.163.246
8447
Plesk Installer + Updates



teacherdadaplus.com
3.6.163.246
8880
Plesk Administration (http)



teacherdadaplus.com
3.6.163.246
8880
Plesk Administration (http)



teacherdadaplus.com
3.6.163.246
10000
Webmin (http)



teacherdadaplus.com
3.6.163.246
10000
Webmin (http)



teacherdadaplus.com
3.6.163.246
10000
Webmin (https)



teacherdadaplus.com
3.6.163.246
10000
Webmin (https)



www.teacherdadaplus.com
3.6.163.246
21
FTP



www.teacherdadaplus.com
3.6.163.246
21
FTP



www.teacherdadaplus.com
3.6.163.246
22
SSH
open
SSH-2.0-OpenSSH_8.9p1 Ubuntu-3ubuntu0.6

www.teacherdadaplus.com
3.6.163.246
22
SSH
open
SSH-2.0-OpenSSH_8.9p1 Ubuntu-3ubuntu0.6
Bad: SSH without DNS SSHFP Record found
Possible DNS SSHFP Entries:
www.teacherdadaplus.com IN SSHFP 3 2 8e222e6b65b1cb7d39cf1c8dd2805875db850761f07c34b4740d79830d3c6362
www.teacherdadaplus.com IN SSHFP 4 2 a2e1b0c0aea5c5c6778a5ba286ca9a823ab6472fe306a871dfe531a66937709f
www.teacherdadaplus.com
3.6.163.246
25
SMTP



www.teacherdadaplus.com
3.6.163.246
25
SMTP



www.teacherdadaplus.com
3.6.163.246
53
DNS



www.teacherdadaplus.com
3.6.163.246
53
DNS



www.teacherdadaplus.com
3.6.163.246
110
POP3



www.teacherdadaplus.com
3.6.163.246
110
POP3



www.teacherdadaplus.com
3.6.163.246
143
IMAP



www.teacherdadaplus.com
3.6.163.246
143
IMAP



www.teacherdadaplus.com
3.6.163.246
465
SMTP (encrypted)



www.teacherdadaplus.com
3.6.163.246
465
SMTP (encrypted)



www.teacherdadaplus.com
3.6.163.246
587
SMTP (encrypted, submission)



www.teacherdadaplus.com
3.6.163.246
587
SMTP (encrypted, submission)



www.teacherdadaplus.com
3.6.163.246
993
IMAP (encrypted)



www.teacherdadaplus.com
3.6.163.246
993
IMAP (encrypted)



www.teacherdadaplus.com
3.6.163.246
995
POP3 (encrypted)



www.teacherdadaplus.com
3.6.163.246
995
POP3 (encrypted)



www.teacherdadaplus.com
3.6.163.246
1433
MS SQL



www.teacherdadaplus.com
3.6.163.246
1433
MS SQL



www.teacherdadaplus.com
3.6.163.246
2082
cPanel (http)



www.teacherdadaplus.com
3.6.163.246
2082
cPanel (http)



www.teacherdadaplus.com
3.6.163.246
2083
cPanel (https)



www.teacherdadaplus.com
3.6.163.246
2083
cPanel (https)



www.teacherdadaplus.com
3.6.163.246
2086
WHM (http)



www.teacherdadaplus.com
3.6.163.246
2086
WHM (http)



www.teacherdadaplus.com
3.6.163.246
2087
WHM (https)



www.teacherdadaplus.com
3.6.163.246
2087
WHM (https)



www.teacherdadaplus.com
3.6.163.246
2089
cPanel Licensing



www.teacherdadaplus.com
3.6.163.246
2089
cPanel Licensing



www.teacherdadaplus.com
3.6.163.246
2095
cPanel Webmail (http)



www.teacherdadaplus.com
3.6.163.246
2095
cPanel Webmail (http)



www.teacherdadaplus.com
3.6.163.246
2096
cPanel Webmail (https)



www.teacherdadaplus.com
3.6.163.246
2096
cPanel Webmail (https)



www.teacherdadaplus.com
3.6.163.246
2222
DirectAdmin (http)



www.teacherdadaplus.com
3.6.163.246
2222
DirectAdmin (http)



www.teacherdadaplus.com
3.6.163.246
2222
DirectAdmin (https)



www.teacherdadaplus.com
3.6.163.246
2222
DirectAdmin (https)



www.teacherdadaplus.com
3.6.163.246
3306
mySql



www.teacherdadaplus.com
3.6.163.246
3306
mySql



www.teacherdadaplus.com
3.6.163.246
5224
Plesk Licensing



www.teacherdadaplus.com
3.6.163.246
5224
Plesk Licensing



www.teacherdadaplus.com
3.6.163.246
5432
PostgreSQL



www.teacherdadaplus.com
3.6.163.246
5432
PostgreSQL



www.teacherdadaplus.com
3.6.163.246
8080
Ookla Speedtest (http)



www.teacherdadaplus.com
3.6.163.246
8080
Ookla Speedtest (http)



www.teacherdadaplus.com
3.6.163.246
8080
Ookla Speedtest (https)



www.teacherdadaplus.com
3.6.163.246
8080
Ookla Speedtest (https)



www.teacherdadaplus.com
3.6.163.246
8083
VestaCP http



www.teacherdadaplus.com
3.6.163.246
8083
VestaCP http



www.teacherdadaplus.com
3.6.163.246
8083
VestaCP https



www.teacherdadaplus.com
3.6.163.246
8083
VestaCP https



www.teacherdadaplus.com
3.6.163.246
8443
Plesk Administration (https)



www.teacherdadaplus.com
3.6.163.246
8443
Plesk Administration (https)



www.teacherdadaplus.com
3.6.163.246
8447
Plesk Installer + Updates



www.teacherdadaplus.com
3.6.163.246
8447
Plesk Installer + Updates



www.teacherdadaplus.com
3.6.163.246
8880
Plesk Administration (http)



www.teacherdadaplus.com
3.6.163.246
8880
Plesk Administration (http)



www.teacherdadaplus.com
3.6.163.246
10000
Webmin (http)



www.teacherdadaplus.com
3.6.163.246
10000
Webmin (http)



www.teacherdadaplus.com
3.6.163.246
10000
Webmin (https)



www.teacherdadaplus.com
3.6.163.246
10000
Webmin (https)





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