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

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Why should you only use Prefix - Cookies? |
Hall of Fame - A+ and A

 

Shortcuts: 1. IP-Addresses | 2. DNSSEC | 3. Name Servers | 4. SOA-Entries | 5. Screenshots | 6. Url-Checks | 7. Comments | 8. Connections | 9. Certificates | 10. CT-Logs | 11. Html-Content | 12. Html-Parsing | 13. NameServer-IPAddresses | 14. CAA | 15. TXT | 16. DomainServiceEntries | 17. Cipher Suites | 18. Portchecks |

 

Y

 

Private IP-Address found

 

Checked:
17.02.2020 08:34:09

 

Older results

 

A - 16.02.2020 19:39:10
H - 16.02.2020 19:20:56
T - 16.02.2020 19:07:47
N - 14.02.2020 16:24:41
Y - 14.02.2020 16:03:06

 

1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
kunc-dc.cz
A
89.103.174.238
Děčín/Ustecky kraj/Czechia (CZ) - Karneval Media
Hostname: ip-89-103-174-238.net.upcbroadband.cz
yes
1
0

AAAA

yes


www.kunc-dc.cz
A
89.103.174.238
Děčín/Ustecky kraj/Czechia (CZ) - Karneval Media
Hostname: ip-89-103-174-238.net.upcbroadband.cz
yes
1
0

AAAA
2002:5967:aeee:0:21e:6ff:fe45:2aa1

yes


 

2. DNSSEC

Zone (*)DNSSEC - Informations


Zone: (root)

(root)
1 DS RR published






• Status: Valid because published






2 DNSKEY RR found






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






Public Key with Algorithm 8, KeyTag 33853, Flags 256






1 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 02.03.2020, 00:00:00 +, Signature-Inception: 10.02.2020, 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: cz

cz
1 DS RR in the parent zone found






1 RRSIG RR to validate DS RR found






RRSIG-Owner cz., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 01.03.2020, 05:00:00 +, Signature-Inception: 17.02.2020, 04:00:00 +, KeyTag 33853, Signer-Name: (root)






• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 33853 used to validate the DS RRSet in the parent zone






2 DNSKEY RR found






Public Key with Algorithm 13, KeyTag 16513, Flags 256






Public Key with Algorithm 13, KeyTag 20237, Flags 257 (SEP = Secure Entry Point)






2 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner cz., Algorithm: 13, 1 Labels, original TTL: 18000 sec, Signature-expiration: 29.02.2020, 14:30:19 +, Signature-Inception: 17.02.2020, 06:05:48 +, KeyTag 16513, Signer-Name: cz






RRSIG-Owner cz., Algorithm: 13, 1 Labels, original TTL: 18000 sec, Signature-expiration: 22.02.2020, 00:00:00 +, Signature-Inception: 08.02.2020, 00:00:00 +, KeyTag 20237, Signer-Name: cz






• Status: Good - Algorithmus 13 and DNSKEY with KeyTag 16513 used to validate the DNSKEY RRSet






• Status: Good - Algorithmus 13 and DNSKEY with KeyTag 20237 used to validate the DNSKEY RRSet






• Status: Valid Chain of trust. Parent-DS with Algorithm 13, KeyTag 20237, DigestType 2 and Digest "z/Dz7NvFKcHwAxuhhAv7g1hTuSCe0eUI//SEUde3eOI=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone



Zone: kunc-dc.cz

kunc-dc.cz
1 DS RR in the parent zone found






1 RRSIG RR to validate DS RR found






RRSIG-Owner kunc-dc.cz., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 27.02.2020, 15:50:04 +, Signature-Inception: 14.02.2020, 02:05:49 +, KeyTag 16513, Signer-Name: cz






• Status: Good - Algorithmus 13 and DNSKEY with KeyTag 16513 used to validate the DS RRSet in the parent zone






2 DNSKEY RR found






Public Key with Algorithm 13, KeyTag 12557, Flags 256






Public Key with Algorithm 13, KeyTag 17507, Flags 257 (SEP = Secure Entry Point)






1 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner kunc-dc.cz., Algorithm: 13, 2 Labels, original TTL: 86400 sec, Signature-expiration: 27.02.2020, 05:11:29 +, Signature-Inception: 13.02.2020, 03:41:29 +, KeyTag 17507, Signer-Name: kunc-dc.cz






• Status: Good - Algorithmus 13 and DNSKEY with KeyTag 17507 used to validate the DNSKEY RRSet






• Status: Valid Chain of trust. Parent-DS with Algorithm 13, KeyTag 17507, DigestType 2 and Digest "5w6RmcR2h1pG/tjcdl9eG7+0Xr32oMBWcAXXiBmbGwM=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone






RRSIG Type 1 validates the A - Result: 89.103.174.238
Validated: RRSIG-Owner kunc-dc.cz., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 02.03.2020, 07:32:01 +, Signature-Inception: 17.02.2020, 06:02:01 +, KeyTag 12557, Signer-Name: kunc-dc.cz






RRSIG Type 50, expiration 2020-03-02 07:32:01 + validates the NSEC3 RR that proves the not-existence of the CNAME RR.
Bitmap: A, NS, SOA, MX, RRSIG, DNSKEY, NSEC3PARAM, CDS, CDNSKEY






RRSIG Type 50, expiration 2020-03-02 07:32:01 + validates the NSEC3 RR that proves the not-existence of the TXT RR.
Bitmap: A, NS, SOA, MX, RRSIG, DNSKEY, NSEC3PARAM, CDS, CDNSKEY






RRSIG Type 50, expiration 2020-03-02 07:32:01 + validates the NSEC3 RR that proves the not-existence of the AAAA RR.
Bitmap: A, NS, SOA, MX, RRSIG, DNSKEY, NSEC3PARAM, CDS, CDNSKEY






RRSIG Type 50, expiration 2020-02-26 04:11:08 + validates the NSEC3 RR that proves the not-existence of the TLSA RR.
Bitmap: CNAME, RRSIG






RRSIG Type 50, expiration 2020-03-02 07:32:01 + validates the NSEC3 RR that proves the not-existence of the TLSA RR.
Bitmap: A, NS, SOA, MX, RRSIG, DNSKEY, NSEC3PARAM, CDS, CDNSKEY






RRSIG Type 50, expiration 2020-03-02 07:32:01 + validates the NSEC3 RR that proves the not-existence of the CAA RR.
Bitmap: A, NS, SOA, MX, RRSIG, DNSKEY, NSEC3PARAM, CDS, CDNSKEY



Zone: www.kunc-dc.cz

www.kunc-dc.cz
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 "r464qbilo29prth84v9a66ar55fd748p" between the hashed NSEC3-owner "r464qbilo29prth84v9a66ar55fd748p" and the hashed NextOwner "ubnofg20tfuqddbcl5h551kpb5tmc0vd". So the parent zone confirmes the not-existence of a DS RR.
Bitmap: A, AAAA, RRSIG Validated: RRSIG-Owner r464qbilo29prth84v9a66ar55fd748p.kunc-dc.cz., Algorithm: 13, 3 Labels, original TTL: 3600 sec, Signature-expiration: 02.03.2020, 07:30:01 +, Signature-Inception: 17.02.2020, 06:00:01 +, KeyTag 12557, Signer-Name: kunc-dc.cz






RRSIG Type 1 validates the A - Result: 89.103.174.238
Validated: RRSIG-Owner www.kunc-dc.cz., Algorithm: 13, 3 Labels, original TTL: 3600 sec, Signature-expiration: 26.02.2020, 04:11:08 +, Signature-Inception: 12.02.2020, 02:41:08 +, KeyTag 12557, Signer-Name: kunc-dc.cz






RRSIG Type 28 validates the AAAA - Result: 2002:5967:AEEE:0000:021E:06FF:FE45:2AA1
Validated: RRSIG-Owner www.kunc-dc.cz., Algorithm: 13, 3 Labels, original TTL: 3600 sec, Signature-expiration: 02.03.2020, 07:30:01 +, Signature-Inception: 17.02.2020, 06:00:01 +, KeyTag 12557, Signer-Name: kunc-dc.cz






RRSIG Type 50, expiration 2020-03-02 07:30:01 + validates the NSEC3 RR that proves the not-existence of the CNAME RR.
Bitmap: A, AAAA, RRSIG






RRSIG Type 50, expiration 2020-03-02 07:30:01 + validates the NSEC3 RR that proves the not-existence of the TXT RR.
Bitmap: A, AAAA, RRSIG






RRSIG Type 50, expiration 2020-02-26 04:11:08 + validates the NSEC3 RR that proves the not-existence of the TLSA RR.
Bitmap: CNAME, RRSIG






RRSIG Type 50, expiration 2020-03-02 07:30:01 + validates the NSEC3 RR that proves the not-existence of the TLSA RR.
Bitmap: A, AAAA, RRSIG






RRSIG Type 50, expiration 2020-03-02 07:30:01 + validates the NSEC3 RR that proves the not-existence of the CAA RR.
Bitmap: A, AAAA, RRSIG

 

3. Name Servers

DomainNameserverNS-IP
www.kunc-dc.cz
•  1.ns.gigaserver.cz
•
kunc-dc.cz
•  1.ns.gigaserver.cz
85.118.128.220
Opava/Moravskoslezsky kraj/Czechia (CZ) - MASTER		•

•  2.ns.gigaserver.cz
85.118.128.221
Opava/Moravskoslezsky kraj/Czechia (CZ) - MASTER		•

•  3.ns.gigaserver.cz
85.118.128.228
Opava/Moravskoslezsky kraj/Czechia (CZ) - MASTER		•

•  4.ns.gigaserver.cz / ns4knot.42riznob2dpuvku3l4rd3l3vcf.ax.internal.cloudapp.net
40.67.208.152
Amsterdam/North Holland/Netherlands (NL) - MICROSOFT-CORP-MSN-AS-BLOCK - Corporation		•
cz
•  a.ns.nic.cz / dns-decix-dns01.nic.cz
•

•  b.ns.nic.cz / odin.ns.nic.cz
•

•  c.ns.nic.cz / dns-linx-dns03.nic.cz
•

•  d.ns.nic.cz / freya.ns.nic.cz
•

 

4. SOA-Entries


Domain:cz
Zone-Name:
Primary:a.ns.nic.cz
Mail:hostmaster.nic.cz
Serial:1581923148
Refresh:900
Retry:300
Expire:604800
TTL:900
num Entries:4


Domain:kunc-dc.cz
Zone-Name:
Primary:1.ns.gigaserver.cz
Mail:dns.gigaserver.cz
Serial:1545515507
Refresh:10800
Retry:3600
Expire:604800
TTL:3600
num Entries:4


Domain:www.kunc-dc.cz
Zone-Name:
Primary:1.ns.gigaserver.cz
Mail:dns.gigaserver.cz
Serial:1545515507
Refresh:10800
Retry:3600
Expire:604800
TTL:3600
num Entries:1


5. Screenshots

Startaddress: https://www.kunc-dc.cz, address used: https://www.kunc-dc.cz/, Screenshot created 2020-02-17 08:35:08 +00:0

 

Mobil (412px x 732px)

 

369 milliseconds

 

Screenshot mobile - https://www.kunc-dc.cz/
Mobil + Landscape (732px x 412px)

 

370 milliseconds

 

Screenshot mobile landscape - https://www.kunc-dc.cz/
Screen (1280px x 1680px)

 

582 milliseconds

 

Screenshot Desktop - https://www.kunc-dc.cz/

 

Mobile- and other Chrome-Checks


widthheight
visual Viewport412716
content Size810716

 

Fatal: Horizontal scrollbar detected. Content-size width is greater then visual Viewport width.

 

Chrome-Connection: secure. secure connection settings. The connection to this site is encrypted and authenticated using TLS 1.2, ECDHE_RSA with X25519, and CHACHA20_POLY1305.

 

Chrome-Resources : secure. all served securely. All resources on this page are served securely.

 

 

6. Url-Checks


:

:
DomainnameHttp-StatusredirectSec.G
• http://kunc-dc.cz/
89.103.174.238
301
https://www.kunc-dc.cz/
Html is minified: 100.00 %
0.110
E
Date: Mon, 17 Feb 2020 07:34:36 GMT
Server: Apache/2.4.29 (Ubuntu)
Location: https://www.kunc-dc.cz/
Content-Length: 307
Connection: close
Content-Type: text/html; charset=iso-8859-1

• http://www.kunc-dc.cz/
89.103.174.238
301
https://www.kunc-dc.cz/
Html is minified: 100.00 %
0.123
A
Date: Mon, 17 Feb 2020 07:34:36 GMT
Server: Apache/2.4.29 (Ubuntu)
Location: https://www.kunc-dc.cz/
Content-Length: 311
Connection: close
Content-Type: text/html; charset=iso-8859-1

• https://kunc-dc.cz/
89.103.174.238
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 1/2866		200

Html is minified: 372.38 %
Other inline scripts (∑/total): 0/0		3.906
N
Certificate error: RemoteCertificateNameMismatch
Date: Mon, 17 Feb 2020 07:34:37 GMT
Server: Apache/2.4.29 (Ubuntu)
Strict-Transport-Security: max-age=15552000; includeSubDomains
Last-Modified: Sat, 15 Feb 2020 06:58:19 GMT
ETag: "1971-59e97d8dfe3da-gzip"
Accept-Ranges: bytes
Vary: Accept-Encoding
Content-Encoding: gzip
Content-Length: 1571
Connection: close
Content-Type: text/html

• https://www.kunc-dc.cz/
89.103.174.238
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 1/2866		200

Html is minified: 372.38 %
Other inline scripts (∑/total): 0/0		3.860
A
Date: Mon, 17 Feb 2020 07:34:41 GMT
Server: Apache/2.4.29 (Ubuntu)
Strict-Transport-Security: max-age=15552000; includeSubDomains
Last-Modified: Sat, 15 Feb 2020 06:58:19 GMT
ETag: "1971-59e97d8dfe3da-gzip"
Accept-Ranges: bytes
Vary: Accept-Encoding
Content-Encoding: gzip
Content-Length: 1571
Connection: close
Content-Type: text/html

• http://kunc-dc.cz/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
89.103.174.238
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0		301
https://www.kunc-dc.cz/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Html is minified: 100.00 %
Other inline scripts (∑/total): 0/0		0.126
E
Visible Content: Moved Permanently The document has moved here . Apache/2.4.29 (Ubuntu) Server at kunc-dc.cz Port 80
Date: Mon, 17 Feb 2020 07:34:45 GMT
Server: Apache/2.4.29 (Ubuntu)
Location: https://www.kunc-dc.cz/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Content-Length: 376
Connection: close
Content-Type: text/html; charset=iso-8859-1

• http://www.kunc-dc.cz/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
89.103.174.238
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0		301
https://www.kunc-dc.cz/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Html is minified: 100.00 %
Other inline scripts (∑/total): 0/0		0.123
A
Visible Content: Moved Permanently The document has moved here . Apache/2.4.29 (Ubuntu) Server at www.kunc-dc.cz Port 80
Date: Mon, 17 Feb 2020 07:34:45 GMT
Server: Apache/2.4.29 (Ubuntu)
Location: https://www.kunc-dc.cz/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Content-Length: 380
Connection: close
Content-Type: text/html; charset=iso-8859-1

• https://www.kunc-dc.cz/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de

Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0		404

Html is minified: 100.00 %
Other inline scripts (∑/total): 0/0		3.640
A
Not Found
Visible Content: Not Found The requested URL was not found on this server. Apache/2.4.29 (Ubuntu) Server at www.kunc-dc.cz Port 443
Date: Mon, 17 Feb 2020 07:34:45 GMT
Server: Apache/2.4.29 (Ubuntu)
Strict-Transport-Security: max-age=15552000; includeSubDomains
Content-Length: 277
Connection: close
Content-Type: text/html; charset=iso-8859-1

 

7. Comments


1. General Results, most used to calculate the result

Aname "kunc-dc.cz" is domain, public suffix is "cz", top-level-domain-type is "country-code", Country is Czechia, tld-manager is "CZ.NIC, z.s.p.o"
AGood: No asked Authoritative Name Server had a timeout
AGood: destination is https
AGood: every https has a Strict Transport Security Header
AGood: HSTS has includeSubdomains - directive
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):1 complete Content-Type - header (3 urls)
https://kunc-dc.cz/ 89.103.174.238


Url with incomplete Content-Type - header - missing charset
https://www.kunc-dc.cz/ 89.103.174.238


Url with incomplete Content-Type - header - missing charset
Ahttp://www.kunc-dc.cz/ 89.103.174.238
301
https://www.kunc-dc.cz/
Correct redirect http - https with the same domain name
BWarning: HSTS max-age is too short - minimum 31536000 = 365 days required, 15552000 seconds = 180 days found
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.
Ehttp://kunc-dc.cz/ 89.103.174.238
301
https://www.kunc-dc.cz/
Wrong redirect one domain http to other domain https. First redirect to https without new dns query, so the server can send the HSTS header. That's fundamental using HSTS (Http Strict Transport Security). First step: Add correct redirects http ⇒ https. Perhaps in your port 80 vHost something like "RewriteEngine on" + "RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,QSA,R=permanent]" (two rows, without the "). Don't add this in your port 443 vHost, that would create a loop. Then recheck your domain, should be Grade C. There is the rule to select one https version as preferred version.
Nhttps://kunc-dc.cz/ 89.103.174.238
200

Error - Certificate isn't trusted, RemoteCertificateNameMismatch
Ywww.kunc-dc.cz

2002:5967:aeee:0:21e:6ff:fe45:2aa1
Warning: Private ip address found. No connection possible. There are two types of ip addresses: Worldwide unique, global addresses and private addresses. If you want that other users connect your domain, your domain must have minimal one A- (ipv4) or AAAA- (ipv6) entry with a global ip address. Check https://en.wikipedia.org/wiki/Private_network to understand the details: 2002:0000:0000:0000:0000:0000:0000:0000 to 2002:ffff:ffff:ffff:ffff:ffff:ffff:ffff: The 6to4 addressing scheme (now deprecated)

2. Header-Checks


3. DNS- and NameServer - Checks

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: 1.ns.gigaserver.cz,2.ns.gigaserver.cz,3.ns.gigaserver.cz,4.ns.gigaserver.cz
AGood: Nameserver supports TCP connections: 4 good Nameserver
AGood: Nameserver supports Echo Capitalization: 4 good Nameserver
AGood: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 4 good Nameserver
AGood: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 4 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

AGood: All checks /.well-known/acme-challenge/random-filename without redirects answer with the expected http status 404 - Not Found. Creating a Letsencrypt certificate via http-01 challenge should work. If it doesn't work: Check your vHost configuration (apachectl -S, httpd -S, nginx -T). Every combination of port and ServerName / ServerAlias (Apache) or Server (Nginx) must be unique. Merge duplicated entries in one vHost. If you use an IIS, extensionless files must be allowed in the /.well-known/acme-challenge subdirectory. Create a web.config in that directory. Content: <configuration><system.webServer><staticContent><mimeMap fileExtension="." mimeType="text/plain" /></staticContent></system.webServer></configuration>. If you have a redirect http ⇒ https, that's ok, Letsencrypt follows such redirects to port 80 / 443 (same or other server). There must be a certificate. But the certificate may be expired, self signed or with a not matching domain name. Checking the validation file Letsencrypt ignores such certificate errors. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask.
AGood: Every https result with status 200 and greater 1024 Bytes is compressed (gzip, deflate, br checked).
https://kunc-dc.cz/ 89.103.174.238
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.kunc-dc.cz/ 89.103.174.238
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://kunc-dc.cz/ 89.103.174.238
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.kunc-dc.cz/ 89.103.174.238
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://kunc-dc.cz/ 89.103.174.238
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.kunc-dc.cz/ 89.103.174.238
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.
AGood: All images with internal compression not compressed. Some Images (.png, .jpg, .jpeg, .webp, .gif) are already compressed, so an additional compression isn't helpful. 2 images (type image/png, image/jpg) found without additional GZip. Not required because these images are already compressed
Warning: Images with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 2 image files without Cache-Control-Header, 0 with Cache-Control, but no max-age, 0 with Cache-Control max-age too short (minimum 7 days), 0 with Cache-Control long enough, 2 complete.
AGood: All checked attribute values are enclosed in quotation marks (" or ').
AGood: All img-elements have a valid alt-attribute.: 2 img-elements 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
https://www.kunc-dc.cz/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
404
3.640 seconds
Warning: 404 needs more then one second
ADuration: 63660 milliseconds, 63.660 seconds

 

8. Connections

DomainIPPortCert.ProtocolKeyExchangeStrengthCipherStrengthHashAlgorithmOCSP stapling
Domain/KeyExchangeIP/StrengthPort/CipherCert./StrengthProtocol/HashAlgorithmOCSP stapling
kunc-dc.cz
89.103.174.238
443
name does not match
Tls12
ECDH Ephermal
255
Aes128
128
Sha256
error checking OCSP stapling
ok
kunc-dc.cz
89.103.174.238
443
name does not match
Tls12

ECDH Ephermal
255
Aes128
128
Sha256
error checking OCSP stapling
ok
no http/2 via ALPN 
Tls.1.2
Tls.1.1
Tls.1.0
no http/2 via ALPN
 Tls.1.2
Tls.1.1
Tls.1.0
Chain - incomplete

1CN=www.kunc-dc.cz


2CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US


www.kunc-dc.cz
89.103.174.238
443
ok
Tls12
ECDH Ephermal
255
Aes128
128
Sha256
error checking OCSP stapling
ok

www.kunc-dc.cz
89.103.174.238
443
ok
Tls12

ECDH Ephermal
255
Aes128
128
Sha256
error checking OCSP stapling
ok
no http/2 via ALPN 
Tls.1.2
Tls.1.1
Tls.1.0
no http/2 via ALPN
 Tls.1.2
Tls.1.1
Tls.1.0
Chain - incomplete

1CN=www.kunc-dc.cz


2CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US


www.kunc-dc.cz
www.kunc-dc.cz
443
ok
Tls12
ECDH Ephermal
255
Aes128
128
Sha256
error checking OCSP stapling
ok

www.kunc-dc.cz
www.kunc-dc.cz
443
ok
Tls12

ECDH Ephermal
255
Aes128
128
Sha256
error checking OCSP stapling
ok
no http/2 via ALPN 
Tls.1.2
Tls.1.1
Tls.1.0
no http/2 via ALPN
 Tls.1.2
Tls.1.1
Tls.1.0
Chain - incomplete

1CN=www.kunc-dc.cz


2CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US

 

9. Certificates

1.
1.
CN=www.kunc-dc.cz
16.02.2020
16.05.2020
1825 days expired		www.kunc-dc.cz - 1 entry
1.
1.
CN=www.kunc-dc.cz
16.02.2020

16.05.2020
1825 days expired


www.kunc-dc.cz - 1 entry

KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:0345CC5BF39038D98A3DAC6E9A35358194A5
Thumbprint:F7B75E815D75B6B57C42270CB1C751BC6D332BD7
SHA256 / Certificate:+zHslYrubWWedyAYzuwof4+qBsavYZfZAVul0HDy2rg=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):86b822e3daf055637765649b60ba77c4fb673058e9d7e2c9a99823f1d6454906
SHA256 hex / Subject Public Key Information (SPKI):86b822e3daf055637765649b60ba77c4fb673058e9d7e2c9a99823f1d6454906
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:http://ocsp.int-x3.letsencrypt.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=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
17.03.2016
17.03.2021
1520 days expired

2.
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
17.03.2016

17.03.2021
1520 days expired




KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:0A0141420000015385736A0B85ECA708
Thumbprint:E6A3B45B062D509B3382282D196EFE97D5956CCB
SHA256 / Certificate:JYR9Zo608E/dQLErawdAxWfafQJDCOtsLJb+QdneIY0=
SHA256 hex / Cert (DANE * 0 1):25847d668eb4f04fdd40b12b6b0740c567da7d024308eb6c2c96fe41d9de218d
SHA256 hex / PublicKey (DANE * 1 1):60b87575447dcba2a36b7d11ac09fb24a9db406fee12d2cc90180517616e8a18
SHA256 hex / Subject Public Key Information (SPKI):60b87575447dcba2a36b7d11ac09fb24a9db406fee12d2cc90180517616e8a18
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:http://isrg.trustid.ocsp.identrust.com
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:




3.
CN=DST Root CA X3, O=Digital Signature Trust Co.
30.09.2000
30.09.2021
1323 days expired

3.
CN=DST Root CA X3, O=Digital Signature Trust Co.
30.09.2000

30.09.2021
1323 days expired




KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA-1 with RSA Encryption
Serial Number:44AFB080D6A327BA893039862EF8406B
Thumbprint:DAC9024F54D8F6DF94935FB1732638CA6AD77C13
SHA256 / Certificate:BocmAzGnJAPZCfEF5pvPDTLhvSST/8bZIG0RvNZ3Bzk=
SHA256 hex / Cert (DANE * 0 1):0687260331a72403d909f105e69bcf0d32e1bd2493ffc6d9206d11bcd6770739
SHA256 hex / PublicKey (DANE * 1 1):563b3caf8cfef34c2335caf560a7a95906e8488462eb75ac59784830df9e5b2b
SHA256 hex / Subject Public Key Information (SPKI):563b3caf8cfef34c2335caf560a7a95906e8488462eb75ac59784830df9e5b2b
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)

Small Code Update - wait one minute

 

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

Small Code Update - wait one minute

 

11. Html-Content - Entries

Summary

No data found or small Code-update

 

Details (currently limited to 500 rows - some problems with spam users)

Small Code Update - wait one minute

 

12. Html-Parsing via https://validator.w3.org/nu/

Small Code update, wait one minute

 

13. Nameserver - IP-Adresses

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers:

 

No NameServer - IP address informations found. The feature is new (2020-05-07), so recheck this domain.

 

14. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
www.kunc-dc.cz
0

no CAA entry found
1
0
kunc-dc.cz
0

no CAA entry found
1
0
cz
0

no CAA entry found
1
0

 

15. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
kunc-dc.cz

ok
1
0
www.kunc-dc.cz

ok
1
0
_acme-challenge.kunc-dc.cz

Name Error - The domain name does not exist
1
0
_acme-challenge.www.kunc-dc.cz

Name Error - The domain name does not exist
1
0
_acme-challenge.kunc-dc.cz.kunc-dc.cz

Name Error - The domain name does not exist
1
0
_acme-challenge.www.kunc-dc.cz.kunc-dc.cz

Name Error - The domain name does not exist
1
0
_acme-challenge.www.kunc-dc.cz.www.kunc-dc.cz

Name Error - The domain name does not exist
1
0

 

16. DomainService - Entries

No DomainServiceEntries entries found

 

 

17. Cipher Suites

No Ciphers found

 

18. Portchecks

DomainIPPortDescriptionResultAnswer
kunc-dc.cz
89.103.174.238
21
FTP



kunc-dc.cz
89.103.174.238
21
FTP



www.kunc-dc.cz
89.103.174.238
21
FTP



www.kunc-dc.cz
89.103.174.238
21
FTP



www.kunc-dc.cz
89.103.174.238
22
SSH



www.kunc-dc.cz
89.103.174.238
22
SSH



kunc-dc.cz
89.103.174.238
22
SSH



kunc-dc.cz
89.103.174.238
22
SSH



www.kunc-dc.cz
89.103.174.238
25
SMTP



www.kunc-dc.cz
89.103.174.238
25
SMTP



kunc-dc.cz
89.103.174.238
25
SMTP



kunc-dc.cz
89.103.174.238
25
SMTP



kunc-dc.cz
89.103.174.238
53
DNS



kunc-dc.cz
89.103.174.238
53
DNS



www.kunc-dc.cz
89.103.174.238
53
DNS



www.kunc-dc.cz
89.103.174.238
53
DNS



www.kunc-dc.cz
89.103.174.238
110
POP3



www.kunc-dc.cz
89.103.174.238
110
POP3



kunc-dc.cz
89.103.174.238
110
POP3



kunc-dc.cz
89.103.174.238
110
POP3



kunc-dc.cz
89.103.174.238
143
IMAP



kunc-dc.cz
89.103.174.238
143
IMAP



www.kunc-dc.cz
89.103.174.238
143
IMAP



www.kunc-dc.cz
89.103.174.238
143
IMAP



www.kunc-dc.cz
89.103.174.238
465
SMTP (encrypted)



www.kunc-dc.cz
89.103.174.238
465
SMTP (encrypted)



kunc-dc.cz
89.103.174.238
465
SMTP (encrypted)



kunc-dc.cz
89.103.174.238
465
SMTP (encrypted)



kunc-dc.cz
89.103.174.238
587
SMTP (encrypted, submission)



kunc-dc.cz
89.103.174.238
587
SMTP (encrypted, submission)



www.kunc-dc.cz
89.103.174.238
587
SMTP (encrypted, submission)



www.kunc-dc.cz
89.103.174.238
587
SMTP (encrypted, submission)



kunc-dc.cz
89.103.174.238
993
IMAP (encrypted)



kunc-dc.cz
89.103.174.238
993
IMAP (encrypted)



www.kunc-dc.cz
89.103.174.238
993
IMAP (encrypted)



www.kunc-dc.cz
89.103.174.238
993
IMAP (encrypted)



www.kunc-dc.cz
89.103.174.238
995
POP3 (encrypted)



www.kunc-dc.cz
89.103.174.238
995
POP3 (encrypted)



kunc-dc.cz
89.103.174.238
995
POP3 (encrypted)



kunc-dc.cz
89.103.174.238
995
POP3 (encrypted)



kunc-dc.cz
89.103.174.238
1433
MS SQL



kunc-dc.cz
89.103.174.238
1433
MS SQL



www.kunc-dc.cz
89.103.174.238
1433
MS SQL



www.kunc-dc.cz
89.103.174.238
1433
MS SQL



www.kunc-dc.cz
89.103.174.238
2082
cPanel (http)



www.kunc-dc.cz
89.103.174.238
2082
cPanel (http)



kunc-dc.cz
89.103.174.238
2082
cPanel (http)



kunc-dc.cz
89.103.174.238
2082
cPanel (http)



kunc-dc.cz
89.103.174.238
2083
cPanel (https)



kunc-dc.cz
89.103.174.238
2083
cPanel (https)



www.kunc-dc.cz
89.103.174.238
2083
cPanel (https)



www.kunc-dc.cz
89.103.174.238
2083
cPanel (https)



www.kunc-dc.cz
89.103.174.238
2086
WHM (http)



www.kunc-dc.cz
89.103.174.238
2086
WHM (http)



kunc-dc.cz
89.103.174.238
2086
WHM (http)



kunc-dc.cz
89.103.174.238
2086
WHM (http)



kunc-dc.cz
89.103.174.238
2087
WHM (https)



kunc-dc.cz
89.103.174.238
2087
WHM (https)



www.kunc-dc.cz
89.103.174.238
2087
WHM (https)



www.kunc-dc.cz
89.103.174.238
2087
WHM (https)



www.kunc-dc.cz
89.103.174.238
2089
cPanel Licensing



www.kunc-dc.cz
89.103.174.238
2089
cPanel Licensing



kunc-dc.cz
89.103.174.238
2089
cPanel Licensing



kunc-dc.cz
89.103.174.238
2089
cPanel Licensing



kunc-dc.cz
89.103.174.238
2095
cPanel Webmail (http)



kunc-dc.cz
89.103.174.238
2095
cPanel Webmail (http)



www.kunc-dc.cz
89.103.174.238
2095
cPanel Webmail (http)



www.kunc-dc.cz
89.103.174.238
2095
cPanel Webmail (http)



www.kunc-dc.cz
89.103.174.238
2096
cPanel Webmail (https)



www.kunc-dc.cz
89.103.174.238
2096
cPanel Webmail (https)



kunc-dc.cz
89.103.174.238
2096
cPanel Webmail (https)



kunc-dc.cz
89.103.174.238
2096
cPanel Webmail (https)



kunc-dc.cz
89.103.174.238
2222
DirectAdmin (http)



kunc-dc.cz
89.103.174.238
2222
DirectAdmin (http)



kunc-dc.cz
89.103.174.238
2222
DirectAdmin (https)



kunc-dc.cz
89.103.174.238
2222
DirectAdmin (https)



www.kunc-dc.cz
89.103.174.238
2222
DirectAdmin (http)



www.kunc-dc.cz
89.103.174.238
2222
DirectAdmin (http)



www.kunc-dc.cz
89.103.174.238
2222
DirectAdmin (https)



www.kunc-dc.cz
89.103.174.238
2222
DirectAdmin (https)



kunc-dc.cz
89.103.174.238
3306
mySql



kunc-dc.cz
89.103.174.238
3306
mySql



www.kunc-dc.cz
89.103.174.238
3306
mySql



www.kunc-dc.cz
89.103.174.238
3306
mySql



www.kunc-dc.cz
89.103.174.238
5224
Plesk Licensing



www.kunc-dc.cz
89.103.174.238
5224
Plesk Licensing



kunc-dc.cz
89.103.174.238
5224
Plesk Licensing



kunc-dc.cz
89.103.174.238
5224
Plesk Licensing



kunc-dc.cz
89.103.174.238
5432
PostgreSQL



kunc-dc.cz
89.103.174.238
5432
PostgreSQL



www.kunc-dc.cz
89.103.174.238
5432
PostgreSQL



www.kunc-dc.cz
89.103.174.238
5432
PostgreSQL



www.kunc-dc.cz
89.103.174.238
8080
Ookla Speedtest (http)



www.kunc-dc.cz
89.103.174.238
8080
Ookla Speedtest (http)



www.kunc-dc.cz
89.103.174.238
8080
Ookla Speedtest (https)



www.kunc-dc.cz
89.103.174.238
8080
Ookla Speedtest (https)



kunc-dc.cz
89.103.174.238
8080
Ookla Speedtest (http)



kunc-dc.cz
89.103.174.238
8080
Ookla Speedtest (http)



kunc-dc.cz
89.103.174.238
8080
Ookla Speedtest (https)



kunc-dc.cz
89.103.174.238
8080
Ookla Speedtest (https)



kunc-dc.cz
89.103.174.238
8083
VestaCP http



kunc-dc.cz
89.103.174.238
8083
VestaCP http



kunc-dc.cz
89.103.174.238
8083
VestaCP https



kunc-dc.cz
89.103.174.238
8083
VestaCP https



www.kunc-dc.cz
89.103.174.238
8083
VestaCP http



www.kunc-dc.cz
89.103.174.238
8083
VestaCP http



www.kunc-dc.cz
89.103.174.238
8083
VestaCP https



www.kunc-dc.cz
89.103.174.238
8083
VestaCP https



www.kunc-dc.cz
89.103.174.238
8443
Plesk Administration (https)



www.kunc-dc.cz
89.103.174.238
8443
Plesk Administration (https)



kunc-dc.cz
89.103.174.238
8443
Plesk Administration (https)



kunc-dc.cz
89.103.174.238
8443
Plesk Administration (https)



kunc-dc.cz
89.103.174.238
8447
Plesk Installer + Updates



kunc-dc.cz
89.103.174.238
8447
Plesk Installer + Updates



www.kunc-dc.cz
89.103.174.238
8447
Plesk Installer + Updates



www.kunc-dc.cz
89.103.174.238
8447
Plesk Installer + Updates



www.kunc-dc.cz
89.103.174.238
8880
Plesk Administration (http)



www.kunc-dc.cz
89.103.174.238
8880
Plesk Administration (http)



kunc-dc.cz
89.103.174.238
8880
Plesk Administration (http)



kunc-dc.cz
89.103.174.238
8880
Plesk Administration (http)



kunc-dc.cz
89.103.174.238
10000
Webmin (http)



kunc-dc.cz
89.103.174.238
10000
Webmin (http)



kunc-dc.cz
89.103.174.238
10000
Webmin (https)



kunc-dc.cz
89.103.174.238
10000
Webmin (https)



www.kunc-dc.cz
89.103.174.238
10000
Webmin (http)



www.kunc-dc.cz
89.103.174.238
10000
Webmin (http)



www.kunc-dc.cz
89.103.174.238
10000
Webmin (https)



www.kunc-dc.cz
89.103.174.238
10000
Webmin (https)



 

 

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