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

0 in Queue, 1 of max. 8 Checks (10:42:12)
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 |

 

V

 

Connect failure - perhaps firewall

 

Checked:
10.05.2025 16:59:10

 

Older results

 

V - 10.05.2025 16:35:01
V - 10.05.2025 00:51:23
V - 10.05.2025 00:26:38

 

1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
mysweet.duckdns.org


yes
5
5
www.mysweet.duckdns.org


yes
5
4
mysweet.duckdns.org
A
188.244.181.38
Yekaterinburg/Sverdlovsk Oblast/Russia (RU) - TTK-Retail
No Hostname found
no


www.mysweet.duckdns.org
A
188.244.181.38
Yekaterinburg/Sverdlovsk Oblast/Russia (RU) - TTK-Retail
No Hostname found
no


*.mysweet.duckdns.org
A
188.244.181.38
yes



AAAA

yes



AAAA

yes



CNAME

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






3 DNSKEY RR found






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






Public Key with Algorithm 8, KeyTag 38696, Flags 257 (SEP = Secure Entry Point)






Public Key with Algorithm 8, KeyTag 53148, Flags 256






1 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 22.05.2025, 00:00:00 +, Signature-Inception: 01.05.2025, 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: org

org
1 DS RR in the parent zone found






DS with Algorithm 8, KeyTag 26974, DigestType 2 and Digest T+3ilMU/Q4oVjEHTlInNeKhr6w2KCur/FHRcDRbh3jI=






1 RRSIG RR to validate DS RR found






RRSIG-Owner org., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 23.05.2025, 05:00:00 +, Signature-Inception: 10.05.2025, 04:00:00 +, KeyTag 53148, Signer-Name: (root)






• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 53148 used to validate the DS RRSet in the parent zone






3 DNSKEY RR found






Public Key with Algorithm 8, KeyTag 321, Flags 256






Public Key with Algorithm 8, KeyTag 26974, Flags 257 (SEP = Secure Entry Point)






Public Key with Algorithm 8, KeyTag 46023, Flags 256






1 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner org., Algorithm: 8, 1 Labels, original TTL: 3600 sec, Signature-expiration: 30.05.2025, 15:26:03 +, Signature-Inception: 09.05.2025, 14:26:03 +, KeyTag 26974, Signer-Name: org






• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 26974 used to validate the DNSKEY RRSet






• Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 26974, DigestType 2 and Digest "T+3ilMU/Q4oVjEHTlInNeKhr6w2KCur/FHRcDRbh3jI=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone



Zone: duckdns.org

duckdns.org
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 "6fabb6hcuj19tgg44lr37hr00rdj3gvl" between the hashed NSEC3-owner "6faatej6fp6286co1nsqe7oal2qlhff1" and the hashed NextOwner "6faciefkg2ht5kqoau0aehb48j0qfej7". So the parent zone confirmes the not-existence of a DS RR.
Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner 6faatej6fp6286co1nsqe7oal2qlhff1.org., Algorithm: 8, 2 Labels, original TTL: 3600 sec, Signature-expiration: 30.05.2025, 15:26:03 +, Signature-Inception: 09.05.2025, 14:26:03 +, KeyTag 46023, Signer-Name: org






DS-Query in the parent zone sends valid NSEC3 RR with the Hash "gdtpongmpok61u9lvnipqor8lra9l4t0" as Owner. That's the Hash of "org" with the NextHashedOwnerName "gdtrea8kmj2rneqen4m2ogj26kfsukj7". So that domain name is the Closest Encloser of "duckdns.org". Opt-Out: True.
Bitmap: NS, SOA, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner gdtpongmpok61u9lvnipqor8lra9l4t0.org., Algorithm: 8, 2 Labels, original TTL: 3600 sec, Signature-expiration: 31.05.2025, 14:58:08 +, Signature-Inception: 10.05.2025, 13:58:08 +, KeyTag 46023, Signer-Name: org






0 DNSKEY RR found









Zone: mysweet.duckdns.org

mysweet.duckdns.org
0 DS RR in the parent zone found



Zone: www.mysweet.duckdns.org

www.mysweet.duckdns.org
0 DS RR in the parent zone found

 

3. Name Servers

DomainNameserverNS-IP
duckdns.org
T  ns1.duckdns.org
99.79.143.35
Toronto/Ontario/Canada (CA) - Amazon.com, Inc.

T  ns2.duckdns.org


•  ns3.duckdns.org
35.183.157.249
Toronto/Ontario/Canada (CA) - Amazon Technologies Inc.

X  ns4.duckdns.org
3.97.51.116
Toronto/Ontario/Canada (CA) - Amazon Technologies Inc.

T  ns5.duckdns.org


T 
99.79.16.64
Toronto/Ontario/Canada (CA) - Amazon.com, Inc.

T  ns6.duckdns.org


X  ns7.duckdns.org


X 
15.223.21.81
Toronto/Ontario/Canada (CA) - Amazon Technologies Inc.

•  ns8.duckdns.org


T  ns9.duckdns.org

org
•  a0.org.afilias-nst.info / app2.ams2.hosts.meta.redstone.afilias-nst.info-1615580861
•

•  a2.org.afilias-nst.info / FRA3
•

•  b0.org.afilias-nst.org / app3.ams2.hosts.meta.redstone.afilias-nst.info-1615580861
•

•  b2.org.afilias-nst.org / FRA5
•

•  c0.org.afilias-nst.info / app8.nrt1.hosts.meta.redstone.afilias-nst.info-1615580861
•

•  d0.org.afilias-nst.org / app16.ams2.hosts.meta.redstone.afilias-nst.info-1615580861
•

 

4. SOA-Entries


Domain:org
Zone-Name:org
Primary:a0.org.afilias-nst.info
Mail:hostmaster.donuts.email
Serial:1746888728
Refresh:7200
Retry:900
Expire:1209600
TTL:3600
num Entries:6


Domain:duckdns.org
Zone-Name:
Primary:
Mail:
Serial:
Refresh:
Retry:
Expire:
TTL:
num Entries:9


Domain:duckdns.org
Zone-Name:duckdns.org
Primary:ns1.duckdns.org
Mail:hostmaster.duckdns.org
Serial:2024031702
Refresh:6000
Retry:120
Expire:2419200
TTL:600
num Entries:2


5. Screenshots

Startaddress: https://mysweet.duckdns.org/, address used: https://mysweet.duckdns.org/, Screenshot created 2025-05-10 17:09:32 +00:0 url is insecure, certificate invalid

 

Mobil (412px x 732px)

 

1053 milliseconds

 

Screenshot mobile - https://mysweet.duckdns.org/
Mobil + Landscape (732px x 412px)

 

1060 milliseconds

 

Screenshot mobile landscape - https://mysweet.duckdns.org/
Screen (1280px x 1680px)

 

1134 milliseconds

 

Screenshot Desktop - https://mysweet.duckdns.org/

 

Mobile- and other Chrome-Checks


widthheight
visual Viewport412732
content Size412732

 

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

 

6. Url-Checks


:

:
DomainnameHttp-StatusredirectSec.G
• http://mysweet.duckdns.org/
188.244.181.38
-102


1.230
V
ConnectionError (2, 0x80004005). Es konnte keine Verbindung hergestellt werden, da der Zielcomputer die Verbindung verweigerte. (188.244.181.38:80)

• http://www.mysweet.duckdns.org/
188.244.181.38
-102


1.247
V
ConnectionError (2, 0x80004005). Es konnte keine Verbindung hergestellt werden, da der Zielcomputer die Verbindung verweigerte. (188.244.181.38:80)

• https://mysweet.duckdns.org/
188.244.181.38 gzip used - 114 / 153 - 25.49 %
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0		403

Html is minified: 110.07 %
Other inline scripts (∑/total): 0/0		3.093
N
Forbidden
Certificate error: RemoteCertificateNameMismatch, RemoteCertificateChainErrors
Server: nginx/1.25.0
Date: Sat, 10 May 2025 15:08:27 GMT
Transfer-Encoding: chunked
Connection: keep-alive
Vary: Accept-Encoding
Content-Type: text/html
Content-Encoding: gzip
Content-Length: 114

• https://www.mysweet.duckdns.org/
188.244.181.38 gzip used - 114 / 153 - 25.49 %
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0		403

Html is minified: 110.07 %
Other inline scripts (∑/total): 0/0		3.080
N
Forbidden
Certificate error: RemoteCertificateNameMismatch, RemoteCertificateChainErrors
Server: nginx/1.25.0
Date: Sat, 10 May 2025 15:08:32 GMT
Transfer-Encoding: chunked
Connection: keep-alive
Vary: Accept-Encoding
Content-Type: text/html
Content-Encoding: gzip
Content-Length: 114

• http://mysweet.duckdns.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
188.244.181.38
-102


1.256
V
ConnectionError (2, 0x80004005). Es konnte keine Verbindung hergestellt werden, da der Zielcomputer die Verbindung verweigerte. (188.244.181.38:80)
Visible Content:

• http://www.mysweet.duckdns.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
188.244.181.38
-102


1.236
V
ConnectionError (2, 0x80004005). Es konnte keine Verbindung hergestellt werden, da der Zielcomputer die Verbindung verweigerte. (188.244.181.38:80)
Visible Content:

• https://188.244.181.38/
188.244.181.38 gzip used - 114 / 153 - 25.49 %
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0		403

Html is minified: 110.07 %
Other inline scripts (∑/total): 0/0		3.403
N
Forbidden
Certificate error: RemoteCertificateNameMismatch, RemoteCertificateChainErrors
Server: nginx/1.25.0
Date: Sat, 10 May 2025 15:08:40 GMT
Transfer-Encoding: chunked
Connection: keep-alive
Vary: Accept-Encoding
Content-Type: text/html
Content-Encoding: gzip
Content-Length: 114

 

7. Comments


1. General Results, most used to calculate the result

Aname "mysweet.duckdns.org" is domain, public suffix is ".duckdns.org", top-level-domain is ".org", top-level-domain-type is "generic", tld-manager is "Public Interest Registry (PIR)", num .org-domains preloaded: 10122 (complete: 270180)
AGood: All ip addresses are public addresses
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):0 complete Content-Type - header (3 urls)
https://mysweet.duckdns.org/ 188.244.181.38


Url with incomplete Content-Type - header - missing charset
https://www.mysweet.duckdns.org/ 188.244.181.38


Url with incomplete Content-Type - header - missing charset
https://188.244.181.38/ 188.244.181.38


Url with incomplete Content-Type - header - missing charset
Bhttps://mysweet.duckdns.org/ 188.244.181.38
403

Missing HSTS-Header
Bhttps://www.mysweet.duckdns.org/ 188.244.181.38
403

Missing HSTS-Header
CError - no version with Http-Status 200
HFatal error: No https - result with http-status 200, no encryption
Mhttps://mysweet.duckdns.org/ 188.244.181.38
403

Misconfiguration - main pages should never send http status 400 - 499
Mhttps://www.mysweet.duckdns.org/ 188.244.181.38
403

Misconfiguration - main pages should never send http status 400 - 499
Mhttps://188.244.181.38/ 188.244.181.38
403

Misconfiguration - main pages should never send http status 400 - 499
Nhttps://mysweet.duckdns.org/ 188.244.181.38
403

Error - Certificate isn't trusted, RemoteCertificateNameMismatch, RemoteCertificateChainErrors
Nhttps://www.mysweet.duckdns.org/ 188.244.181.38
403

Error - Certificate isn't trusted, RemoteCertificateNameMismatch, RemoteCertificateChainErrors
Nhttps://188.244.181.38/ 188.244.181.38
403

Error - Certificate isn't trusted, RemoteCertificateNameMismatch, RemoteCertificateChainErrors
Vhttp://mysweet.duckdns.org/ 188.244.181.38
-102

Connect failure - perhaps firewall
Vhttp://www.mysweet.duckdns.org/ 188.244.181.38
-102

Connect failure - perhaps firewall
Vhttp://mysweet.duckdns.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 188.244.181.38
-102

Connect failure - perhaps firewall
Vhttp://www.mysweet.duckdns.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 188.244.181.38
-102

Connect failure - perhaps firewall
XFatal error: Nameserver doesn't support TCP connection: ns1.duckdns.org / 99.79.143.35: Timeout
XFatal error: Nameserver doesn't support TCP connection: ns2.duckdns.org: Timeout
XFatal error: Nameserver doesn't support TCP connection: ns3.duckdns.org / 35.183.157.249: Timeout
XFatal error: Nameserver doesn't support TCP connection: ns4.duckdns.org / 3.97.51.116: Timeout
XFatal error: Nameserver doesn't support TCP connection: ns5.duckdns.org: Timeout
XFatal error: Nameserver doesn't support TCP connection: ns5.duckdns.org / 99.79.16.64: Timeout
XFatal error: Nameserver doesn't support TCP connection: ns6.duckdns.org: Timeout
XFatal error: Nameserver doesn't support TCP connection: ns7.duckdns.org: Timeout
XFatal error: Nameserver doesn't support TCP connection: ns7.duckdns.org / 15.223.21.81: Timeout
XFatal error: Nameserver doesn't support TCP connection: ns9.duckdns.org: Timeout
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.mysweet.duckdns.org

2. Header-Checks

Fmysweet.duckdns.org 188.244.181.38
Content-Security-Policy
Critical: Missing Header:
Fmysweet.duckdns.org 188.244.181.38
X-Content-Type-Options
Critical: Missing Header:
Fmysweet.duckdns.org 188.244.181.38
Referrer-Policy
Critical: Missing Header:
Fmysweet.duckdns.org 188.244.181.38
Permissions-Policy
Critical: Missing Header:
Bmysweet.duckdns.org 188.244.181.38
Cross-Origin-Embedder-Policy
Info: Missing Header
Bmysweet.duckdns.org 188.244.181.38
Cross-Origin-Opener-Policy
Info: Missing Header
Bmysweet.duckdns.org 188.244.181.38
Cross-Origin-Resource-Policy
Info: Missing Header
Fwww.mysweet.duckdns.org 188.244.181.38
Content-Security-Policy
Critical: Missing Header:
Fwww.mysweet.duckdns.org 188.244.181.38
X-Content-Type-Options
Critical: Missing Header:
Fwww.mysweet.duckdns.org 188.244.181.38
Referrer-Policy
Critical: Missing Header:
Fwww.mysweet.duckdns.org 188.244.181.38
Permissions-Policy
Critical: Missing Header:
Bwww.mysweet.duckdns.org 188.244.181.38
Cross-Origin-Embedder-Policy
Info: Missing Header
Bwww.mysweet.duckdns.org 188.244.181.38
Cross-Origin-Opener-Policy
Info: Missing Header
Bwww.mysweet.duckdns.org 188.244.181.38
Cross-Origin-Resource-Policy
Info: Missing Header

3. DNS- and NameServer - Checks

AInfo:: 2 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 5 Name Servers.
AInfo:: 2 Queries complete, 2 with IPv6, 0 with IPv4.
AGood: All DNS Queries done via IPv6.
AGood: Some ip addresses of name servers found with the minimum of two DNS Queries. One to find the TLD-Zone, one to ask the TLD-Zone.ns1.duckdns.org (99.79.143.35), ns3.duckdns.org (35.183.157.249), ns4.duckdns.org (3.97.51.116), ns5.duckdns.org (99.79.16.64), ns7.duckdns.org (15.223.21.81)
AGood (1 - 3.0):: An average of 0.4 queries per domain name server required to find all ip addresses of all name servers.
AInfo:: 9 different Name Servers found: ns1.duckdns.org, ns2.duckdns.org, ns3.duckdns.org, ns4.duckdns.org, ns5.duckdns.org, ns6.duckdns.org, ns7.duckdns.org, ns8.duckdns.org, ns9.duckdns.org, 9 Name Servers included in Delegation: ns1.duckdns.org, ns2.duckdns.org, ns3.duckdns.org, ns4.duckdns.org, ns5.duckdns.org, ns6.duckdns.org, ns7.duckdns.org, ns8.duckdns.org, ns9.duckdns.org, 9 Name Servers included in 2 Zone definitions: ns1.duckdns.org, ns2.duckdns.org, ns3.duckdns.org, ns4.duckdns.org, ns5.duckdns.org, ns6.duckdns.org, ns7.duckdns.org, ns8.duckdns.org, ns9.duckdns.org, 1 Name Servers listed in SOA.Primary: ns1.duckdns.org.
AGood: Only one SOA.Primary Name Server found.: ns1.duckdns.org.
AGood: SOA.Primary Name Server included in the delegation set.: ns1.duckdns.org.
AGood: All Name Server Domain Names have a Public Suffix.
Error: Name Server Domain Names with Public Suffix and without ip address found.: 6 Name Servers without ipv4 and ipv6: 6

AInfo: Ipv4-Subnet-list: 5 Name Servers, 4 different subnets (first Byte): 15., 3., 35., 99., 4 different subnets (first two Bytes): 15.223., 3.97., 35.183., 99.79., 5 different subnets (first three Bytes): 15.223.21., 3.97.51., 35.183.157., 99.79.143., 99.79.16.
AGood: Name Server IPv4-addresses from different subnet found:
XNameserver Timeout checking Echo Capitalization: ns1.duckdns.org / 99.79.143.35
XNameserver Timeout checking Echo Capitalization: ns2.duckdns.org
XNameserver Timeout checking Echo Capitalization: ns5.duckdns.org
XNameserver Timeout checking Echo Capitalization: ns5.duckdns.org / 99.79.16.64
XNameserver Timeout checking Echo Capitalization: ns6.duckdns.org
XNameserver Timeout checking Echo Capitalization: ns9.duckdns.org
XNameserver Timeout checking EDNS512: ns1.duckdns.org / 99.79.143.35
XNameserver Timeout checking EDNS512: ns2.duckdns.org
XNameserver Timeout checking EDNS512: ns4.duckdns.org / 3.97.51.116
XNameserver Timeout checking EDNS512: ns5.duckdns.org
XNameserver Timeout checking EDNS512: ns5.duckdns.org / 99.79.16.64
XNameserver Timeout checking EDNS512: ns6.duckdns.org
XNameserver Timeout checking EDNS512: ns9.duckdns.org
Nameserver doesn't pass all EDNS-Checks: b2.org.afilias-nst.org: OP100: ok. FLAGS: ok. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1DNSSEC: ok. NSID: ok (FRA5). COOKIE: ok. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns1.duckdns.org / 99.79.143.35: OP100: ok. FLAGS: ok. V1: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. V1OP100: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. V1FLAGS: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. DNSSEC: ok. V1DNSSEC: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. NSID: ok. COOKIE: ok. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns2.duckdns.org: OP100: fatal timeout. FLAGS: fatal timeout. V1: fatal timeout. V1OP100: fatal timeout. V1FLAGS: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. DNSSEC: ok. V1DNSSEC: fatal timeout. NSID: ok. COOKIE: fatal timeout. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns3.duckdns.org / 35.183.157.249: OP100: ok. FLAGS: ok. V1: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. V1OP100: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. V1FLAGS: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. DNSSEC: ok. V1DNSSEC: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. NSID: ok. COOKIE: ok. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns4.duckdns.org / 3.97.51.116: OP100: fatal timeout. FLAGS: fatal timeout. V1: fatal timeout. V1OP100: fatal timeout. V1FLAGS: fatal timeout. DNSSEC: fatal timeout. V1DNSSEC: fatal timeout. NSID: fatal timeout. COOKIE: fatal timeout. CLIENTSUBNET: fatal timeout.
Nameserver doesn't pass all EDNS-Checks: ns5.duckdns.org: OP100: ok. FLAGS: fatal timeout. V1: fatal timeout. V1OP100: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. V1FLAGS: fatal timeout. DNSSEC: fatal timeout. V1DNSSEC: fatal timeout. NSID: ok. COOKIE: fatal timeout. CLIENTSUBNET: fatal timeout.
Nameserver doesn't pass all EDNS-Checks: ns5.duckdns.org / 99.79.16.64: OP100: ok. FLAGS: fatal timeout. V1: fatal timeout. V1OP100: fatal timeout. V1FLAGS: fatal timeout. DNSSEC: fatal timeout. V1DNSSEC: fatal timeout. NSID: fatal timeout. COOKIE: fatal timeout. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns6.duckdns.org: OP100: fatal timeout. FLAGS: ok. V1: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. V1OP100: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. V1FLAGS: fatal timeout. DNSSEC: ok. V1DNSSEC: fatal timeout. NSID: ok. COOKIE: ok. CLIENTSUBNET: fatal timeout.
Nameserver doesn't pass all EDNS-Checks: ns7.duckdns.org: OP100: fatal timeout. FLAGS: fatal timeout. V1: fatal timeout. V1OP100: fatal timeout. V1FLAGS: fatal timeout. DNSSEC: fatal timeout. V1DNSSEC: fatal timeout. NSID: fatal timeout. COOKIE: fatal timeout. CLIENTSUBNET: fatal timeout.
Nameserver doesn't pass all EDNS-Checks: ns7.duckdns.org / 15.223.21.81: OP100: fatal timeout. FLAGS: fatal timeout. V1: fatal timeout. V1OP100: fatal timeout. V1FLAGS: fatal timeout. DNSSEC: fatal timeout. V1DNSSEC: fatal timeout. NSID: fatal timeout. COOKIE: fatal timeout. CLIENTSUBNET: fatal timeout.
Nameserver doesn't pass all EDNS-Checks: ns8.duckdns.org: OP100: no result. FLAGS: no result. V1: no result. V1OP100: no result. V1FLAGS: no result. DNSSEC: no result. V1DNSSEC: no result. NSID: no result. COOKIE: no result. CLIENTSUBNET: no result.
Nameserver doesn't pass all EDNS-Checks: ns9.duckdns.org: OP100: fatal timeout. FLAGS: ok. V1: fatal timeout. V1OP100: fatal timeout. V1FLAGS: fatal timeout. DNSSEC: fatal timeout. V1DNSSEC: fatal timeout. NSID: ok. COOKIE: fatal timeout. CLIENTSUBNET: ok.
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

http://mysweet.duckdns.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 188.244.181.38
-102

Fatal: Check of /.well-known/acme-challenge/random-filename is blocked, http connection error. Creating a Letsencrypt certificate via http-01 challenge can't work. You need a running webserver (http) and an open port 80. If it's a home server + ipv4, perhaps a correct port forwarding port 80 extern ⇒ working port intern is required. Port 80 / http can redirect to another domain port 80 or port 443, but not other ports. If it's a home server, perhaps your ISP blocks port 80. Then you may use the dns-01 challenge. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask.
http://www.mysweet.duckdns.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 188.244.181.38
-102

Fatal: Check of /.well-known/acme-challenge/random-filename is blocked, http connection error. Creating a Letsencrypt certificate via http-01 challenge can't work. You need a running webserver (http) and an open port 80. If it's a home server + ipv4, perhaps a correct port forwarding port 80 extern ⇒ working port intern is required. Port 80 / http can redirect to another domain port 80 or port 443, but not other ports. If it's a home server, perhaps your ISP blocks port 80. Then you may use the dns-01 challenge. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask.
AInfo: No img element found, no alt attribute checked
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: 629283 milliseconds, 629.283 seconds

 

8. Connections

DomainIPPortCert.ProtocolKeyExchangeStrengthCipherStrengthHashAlgorithmOCSP stapling
Domain/KeyExchangeIP/StrengthPort/CipherCert./StrengthProtocol/HashAlgorithmOCSP stapling
mysweet.duckdns.org
188.244.181.38
443
Certificate/chain invalid and wrong name
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
not supported
ok
mysweet.duckdns.org
188.244.181.38
443
Certificate/chain invalid and wrong name
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
Self signed certificate

1CN=*.home, OU=Home, O=Sweet Home, L=Berezniki, C=RU, ST=Perm


www.mysweet.duckdns.org
188.244.181.38
443
Certificate/chain invalid and wrong name
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
not supported
ok

www.mysweet.duckdns.org
188.244.181.38
443
Certificate/chain invalid and wrong name
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
Self signed certificate

1CN=*.home, OU=Home, O=Sweet Home, L=Berezniki, C=RU, ST=Perm


188.244.181.38
188.244.181.38
443
Certificate/chain invalid and wrong name
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
not supported
ok

188.244.181.38
188.244.181.38
443
Certificate/chain invalid and wrong name
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
not 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
Self signed certificate

1CN=*.home, OU=Home, O=Sweet Home, L=Berezniki, C=RU, ST=Perm

 

9. Certificates

1.
1.
CN=*.home, OU=Home, O=Sweet Home, L=Berezniki, S=Perm, C=RU
01.08.2024
02.09.2025
expires in 109 days		sweet.home, boxes.home, 10.20.3.27 - 3 entries
1.
1.
CN=*.home, OU=Home, O=Sweet Home, L=Berezniki, S=Perm, C=RU
01.08.2024

02.09.2025
expires in 109 days


sweet.home, boxes.home, 10.20.3.27 - 3 entries

KeyalgorithmEC Public Key (256 bit, prime256v1)
Signatur:ECDSA SHA256
Serial Number:6A0129F495F7C27BC356CCFA702445A5DB1EB47E
Thumbprint:00630EDA63CE09B60D6449C58A98118A7F8CF31D
SHA256 / Certificate:bbDMTgMGXBOv8QJIIrKyAZg0CYVF4N6nWn+n+gX3//Q=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):bfe5400dc38cf5f399b9178777f41d2813d4d3031524c77dba4d777d03683c4c
SHA256 hex / Subject Public Key Information (SPKI):bfe5400dc38cf5f399b9178777f41d2813d4d3031524c77dba4d777d03683c4c (is buggy, ignore the result)
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:Serverauthentifizierung (1.3.6.1.5.5.7.3.1)


UntrustedRoot: A certificate chain processed, but terminated in a root certificate which is not trusted by the trust provider.


 

10. Last Certificates - Certificate Transparency Log Check

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

No CertSpotter - CT-Log entries found

 

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

No Html-Content entries found. Only checked if https + status 200/401/403/404

 

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


No https result http status 200 and Content-Type text/html or text/xml found, no Html-Parsing - Check

 

13. Nameserver - IP-Adresses

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers: ns1.duckdns.org, ns3.duckdns.org, ns4.duckdns.org, ns5.duckdns.org, ns7.duckdns.org

 

QNr.DomainTypeNS used
1
org
NS
a.root-servers.net (2001:503:ba3e::2:30)

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
ns1.duckdns.org: 99.79.143.35
NS
a0.org.afilias-nst.info (2001:500:e::1)

Answer: ns2.duckdns.org
35.182.183.211

Answer: ns3.duckdns.org
35.183.157.249

Answer: ns4.duckdns.org
3.97.51.116

Answer: ns5.duckdns.org
99.79.16.64

Answer: ns6.duckdns.org
3.97.58.28

Answer: ns7.duckdns.org
15.223.21.81

Answer: ns8.duckdns.org
15.223.106.16

Answer: ns9.duckdns.org
15.222.19.97

 

14. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
duckdns.org
0

no CAA entry found
4
1
org
0

no CAA entry found
1
0

 

15. TXT - Entries

No TXT entries found

 

16. DomainService - Entries

No DomainServiceEntries entries found

 

 

17. Cipher Suites

No results

 

18. Portchecks

No open Ports <> 80 / 443 found, so no additional Ports checked.

 

 

Permalink: https://check-your-website.server-daten.de/?i=57a057d7-79a3-4138-b3e4-e0da0ca0f88d

 

Last Result: https://check-your-website.server-daten.de/?q=mysweet.duckdns.org - 2025-05-10 16:59:10

 

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