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


 

 

A+

 

Top configuration, no warnings +Preload

 

Checked:
24.09.2025 01:52:52

 

Older results

No older results found

 

1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
my.yubico.com
CNAME
my-yubico-com.k8s.yubico.com
yes
1
0

CNAME
appl3-default-us1.k8s.yubico.org
yes


www.my.yubico.com
A

yes
1
0

AAAA

yes


my.yubico.com
A
34.138.135.146
North Charleston/South Carolina/United States (US) - Google LLC
No Hostname found
no


*.yubico.com
A

yes



AAAA

yes



CNAME

yes


*.my.yubico.com
A

yes



AAAA

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






4 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 46441, Flags 256






Public Key with Algorithm 8, KeyTag 61809, Flags 256






1 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 10.10.2025, 00:00:00 +, Signature-Inception: 19.09.2025, 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: com

com
1 DS RR in the parent zone found






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






2 RRSIG RR to validate DS RR found






RRSIG-Owner com., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 06.10.2025, 20:00:00 +, Signature-Inception: 23.09.2025, 19:00:00 +, KeyTag 46441, Signer-Name: (root)






Status: Good - Algorithmus 8 and DNSKEY with KeyTag 46441 used to validate the DS RRSet in the parent zone






2 DNSKEY RR found






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






Public Key with Algorithm 13, KeyTag 20545, Flags 256






1 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner com., Algorithm: 13, 1 Labels, original TTL: 86400 sec, Signature-expiration: 04.10.2025, 14:02:35 +, Signature-Inception: 19.09.2025, 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: yubico.com

yubico.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 "urq5ust5hi2kve5qq3lnolndpf3lr5oe" between the hashed NSEC3-owner "urq5pnsodcg75rg1kj3ep5k427dqctbo" and the hashed NextOwner "urq5vt7salc2gimmfq5iv83dqpfdi74l". So the parent zone confirmes the not-existence of a DS RR.
Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner urq5pnsodcg75rg1kj3ep5k427dqctbo.com., Algorithm: 13, 2 Labels, original TTL: 900 sec, Signature-expiration: 29.09.2025, 02:00:33 +, Signature-Inception: 22.09.2025, 00:50:33 +, KeyTag 20545, 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 "ck0q3udg8cekkae7rukpgct1dvssh8ll". So that domain name is the Closest Encloser of "yubico.com". Opt-Out: True.
Bitmap: NS, SOA, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner ck0pojmg874ljref7efn8430qvit8bsm.com., Algorithm: 13, 2 Labels, original TTL: 900 sec, Signature-expiration: 28.09.2025, 02:00:25 +, Signature-Inception: 21.09.2025, 00:50:25 +, KeyTag 20545, Signer-Name: com






0 DNSKEY RR found









Zone: my.yubico.com

my.yubico.com
0 DS RR in the parent zone found



Zone: www.my.yubico.com

www.my.yubico.com
0 DS RR in the parent zone found



Zone: (root)

(root)
1 DS RR published






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






Status: Valid because published






4 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 46441, Flags 256






Public Key with Algorithm 8, KeyTag 61809, Flags 256






1 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 10.10.2025, 00:00:00 +, Signature-Inception: 19.09.2025, 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: com

com
1 DS RR in the parent zone found






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






2 RRSIG RR to validate DS RR found






RRSIG-Owner com., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 06.10.2025, 20:00:00 +, Signature-Inception: 23.09.2025, 19:00:00 +, KeyTag 46441, Signer-Name: (root)






Status: Good - Algorithmus 8 and DNSKEY with KeyTag 46441 used to validate the DS RRSet in the parent zone






2 DNSKEY RR found






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






Public Key with Algorithm 13, KeyTag 20545, Flags 256






1 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner com., Algorithm: 13, 1 Labels, original TTL: 86400 sec, Signature-expiration: 04.10.2025, 14:02:35 +, Signature-Inception: 19.09.2025, 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: yubico.com

yubico.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 "urq5ust5hi2kve5qq3lnolndpf3lr5oe" between the hashed NSEC3-owner "urq5pnsodcg75rg1kj3ep5k427dqctbo" and the hashed NextOwner "urq5vt7salc2gimmfq5iv83dqpfdi74l". So the parent zone confirmes the not-existence of a DS RR.
Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner urq5pnsodcg75rg1kj3ep5k427dqctbo.com., Algorithm: 13, 2 Labels, original TTL: 900 sec, Signature-expiration: 29.09.2025, 02:00:33 +, Signature-Inception: 22.09.2025, 00:50:33 +, KeyTag 20545, 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 "ck0q3udg8cekkae7rukpgct1dvssh8ll". So that domain name is the Closest Encloser of "yubico.com". Opt-Out: True.
Bitmap: NS, SOA, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner ck0pojmg874ljref7efn8430qvit8bsm.com., Algorithm: 13, 2 Labels, original TTL: 900 sec, Signature-expiration: 28.09.2025, 02:00:25 +, Signature-Inception: 21.09.2025, 00:50:25 +, KeyTag 20545, Signer-Name: com






0 DNSKEY RR found









Zone: k8s.yubico.com

k8s.yubico.com
0 DS RR in the parent zone found






0 DNSKEY RR found









Zone: my-yubico-com.k8s.yubico.com

my-yubico-com.k8s.yubico.com
0 DS RR in the parent zone found

 

3. Name Servers

DomainNameserverNS-IP
www.my.yubico.com
  ns-1322.awsdns-37.org / 5b2396b134790a75c6e15615fc23cbe8 -


  ns-cloud-e1.googledomains.com

yubico.com
  ns-1322.awsdns-37.org / 75c89ad4344c8e6aec978c44a31c14f4 -
205.251.197.42
Herndon/Virginia/United States (US) - Amazon.com


 
2600:9000:5305:2a00::1
Chicago/Illinois/United States (US) - Amazon.com, Inc.


  ns-689.awsdns-22.net / b278edf2217b0df38c5874f185555d4f -
205.251.194.177
San Jose/California/United States (US) - Amazon.com


 
2600:9000:5302:b100::1
Seattle/Washington/United States (US) - Amazon.com, Inc.


  ns-cloud-e1.googledomains.com
216.239.32.110
Mountain View/California/United States (US) - Google LLC


 
2001:4860:4802:32::6e
Montreal/Quebec/Canada (CA) - Google LLC


  ns-cloud-e2.googledomains.com
216.239.34.110
Mountain View/California/United States (US) - Google LLC


 
2001:4860:4802:34::6e
Montreal/Quebec/Canada (CA) - Google LLC

com
  a.gtld-servers.net / nnn1-par6


  b.gtld-servers.net / nnn1-elwaw4


  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-frmrs-2


  m.gtld-servers.net / nnn1-frmrs-2


k8s.yubico.com
  ns-cloud-d1.googledomains.com
216.239.32.109
Mountain View/California/United States (US) - Google LLC


 
2001:4860:4802:32::6d
Montreal/Quebec/Canada (CA) - Google LLC


  ns-cloud-d2.googledomains.com
216.239.34.109
Mountain View/California/United States (US) - Google LLC


 
2001:4860:4802:34::6d
Montreal/Quebec/Canada (CA) - Google LLC


  ns-cloud-d3.googledomains.com
216.239.36.109
Mountain View/California/United States (US) - Google LLC


 
2001:4860:4802:36::6d
Montreal/Quebec/Canada (CA) - Google LLC


  ns-cloud-d4.googledomains.com
216.239.38.109
Mountain View/California/United States (US) - Google LLC


 
2001:4860:4802:38::6d
Montreal/Quebec/Canada (CA) - Google LLC

yubico.com
  ns-1322.awsdns-37.org / 5b2396b134790a75c6e15615fc23cbe8 -
205.251.197.42
Herndon/Virginia/United States (US) - Amazon.com


 
2600:9000:5305:2a00::1
Chicago/Illinois/United States (US) - Amazon.com, Inc.


  ns-689.awsdns-22.net / b278edf2217b0df38c5874f185555d4f -
205.251.194.177
San Jose/California/United States (US) - Amazon.com


 
2600:9000:5302:b100::1
Seattle/Washington/United States (US) - Amazon.com, Inc.


  ns-cloud-e1.googledomains.com
216.239.32.110
Mountain View/California/United States (US) - Google LLC


 
2001:4860:4802:32::6e
Montreal/Quebec/Canada (CA) - Google LLC


  ns-cloud-e2.googledomains.com
216.239.34.110
Mountain View/California/United States (US) - Google LLC


 
2001:4860:4802:34::6e
Montreal/Quebec/Canada (CA) - Google LLC

com
  a.gtld-servers.net / nnn1-par6


  b.gtld-servers.net / nnn1-elwaw4


  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-frmrs-2


  m.gtld-servers.net / nnn1-frmrs-2

 

4. SOA-Entries


Domain:com
Zone-Name:com
Primary:a.gtld-servers.net
Mail:nstld.verisign-grs.com
Serial:1758671554
Refresh:1800
Retry:900
Expire:604800
TTL:900
num Entries:13


Domain:yubico.com
Zone-Name:yubico.com
Primary:ns-1322.awsdns-37.org
Mail:awsdns-hostmaster.amazon.com
Serial:1
Refresh:7200
Retry:900
Expire:1209600
TTL:86400
num Entries:4


Domain:yubico.com
Zone-Name:yubico.com
Primary:ns-cloud-e1.googledomains.com
Mail:cloud-dns-hostmaster.google.com
Serial:1
Refresh:21600
Retry:3600
Expire:259200
TTL:300
num Entries:4


Domain:www.my.yubico.com
Zone-Name:yubico.com
Primary:ns-1322.awsdns-37.org
Mail:awsdns-hostmaster.amazon.com
Serial:1
Refresh:7200
Retry:900
Expire:1209600
TTL:86400
num Entries:1


Domain:www.my.yubico.com
Zone-Name:yubico.com
Primary:ns-cloud-e1.googledomains.com
Mail:cloud-dns-hostmaster.google.com
Serial:1
Refresh:21600
Retry:3600
Expire:259200
TTL:300
num Entries:1



Domain:com
Zone-Name:com
Primary:a.gtld-servers.net
Mail:nstld.verisign-grs.com
Serial:1758671614
Refresh:1800
Retry:900
Expire:604800
TTL:900
num Entries:10


Domain:com
Zone-Name:com
Primary:a.gtld-servers.net
Mail:nstld.verisign-grs.com
Serial:1758671629
Refresh:1800
Retry:900
Expire:604800
TTL:900
num Entries:3


Domain:yubico.com
Zone-Name:yubico.com
Primary:ns-1322.awsdns-37.org
Mail:awsdns-hostmaster.amazon.com
Serial:1
Refresh:7200
Retry:900
Expire:1209600
TTL:86400
num Entries:4


Domain:yubico.com
Zone-Name:yubico.com
Primary:ns-cloud-e1.googledomains.com
Mail:cloud-dns-hostmaster.google.com
Serial:1
Refresh:21600
Retry:3600
Expire:259200
TTL:300
num Entries:4


Domain:k8s.yubico.com
Zone-Name:k8s.yubico.com
Primary:ns-cloud-d1.googledomains.com
Mail:cloud-dns-hostmaster.google.com
Serial:1
Refresh:21600
Retry:3600
Expire:259200
TTL:300
num Entries:8


5. Screenshots

Startaddress: https://my.yubico.com/, address used: https://demo.yubico.com/yk/, Screenshot created 2025-09-24 01:57:21 +00:0

 

Mobil (412px x 732px)

 

1066 milliseconds

 

Screenshot mobile - https://demo.yubico.com/yk/
Mobil + Landscape (732px x 412px)

 

1058 milliseconds

 

Screenshot mobile landscape - https://demo.yubico.com/yk/
Screen (1280px x 1680px)

 

1141 milliseconds

 

Screenshot Desktop - https://demo.yubico.com/yk/

 

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://my.yubico.com/
34.138.135.146
301
https://my.yubico.com/

0.224
A
Location: https://my.yubico.com/
Date: Tue, 23 Sep 2025 23:56:06 GMT
Content-Length: 0

• https://my.yubico.com/
34.138.135.146 No Compression used - 485 / 796 - 60.93 % possible
Inline-JavaScript (∑/total): 1/610 Inline-CSS (∑/total): 0/0
200

Html is minified: 127.97 %
Other inline scripts (∑/total): 0/0
4.724
A
Accept-Ranges: bytes
Content-Security-Policy: default-src 'none'; script-src 'unsafe-inline';
ETag: "s80nf3m4"
Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
X-XSS-Protection: 1; mode=block
Date: Tue, 23 Sep 2025 23:56:07 GMT
Content-Length: 796
Content-Type: text/html; charset=utf-8
Last-Modified: Mon, 29 Jan 2024 09:23:27 GMT

• http://my.yubico.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
34.138.135.146
301
https://my.yubico.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de

0.113
A
Visible Content:
Location: https://my.yubico.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Date: Tue, 23 Sep 2025 23:56:13 GMT
Content-Length: 0

• https://my.yubico.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
No Compression used - 485 / 796 - 60.93 % possible
Inline-JavaScript (∑/total): 1/610 Inline-CSS (∑/total): 0/0
200

Html is minified: 127.97 %
Other inline scripts (∑/total): 0/0
3.967

Visible Content:
Accept-Ranges: bytes
Content-Security-Policy: default-src 'none'; script-src 'unsafe-inline';
ETag: "s80nf3m4"
Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
X-XSS-Protection: 1; mode=block
Date: Tue, 23 Sep 2025 23:56:22 GMT
Content-Length: 796
Content-Type: text/html; charset=utf-8
Last-Modified: Mon, 29 Jan 2024 09:23:27 GMT

• https://34.138.135.146/
34.138.135.146
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
403

Html is minified: 100.00 %
Other inline scripts (∑/total): 0/0
4.190
N
Forbidden
Certificate error: RemoteCertificateNameMismatch
Date: Tue, 23 Sep 2025 23:56:15 GMT
Content-Length: 19
Content-Type: text/plain

 

7. Comments


1. General Results, most used to calculate the result

Aname "my.yubico.com" is subdomain, 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: 108094 (complete: 276475)
AGood: All ip addresses are public addresses
AGood: No asked Authoritative Name Server had a timeout
AGood: destination is https
AGood - only one version with Http-Status 200
AGood: one preferred version: non-www is preferred
AGood: No cookie sent via http.
AGood: HSTS has preload directive
AExcellent: Main Domain is in the Google-Preload-List
AExcellent: Main Domain is in the Mozilla/Firefox-Preload-List
AHSTS-Preload-Status: Preloaded. 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):2 complete Content-Type - header (3 urls)
https://34.138.135.146/ 34.138.135.146


Url with incomplete Content-Type - header - missing charset
Ahttp://my.yubico.com/ 34.138.135.146
301
https://my.yubico.com/
Correct redirect http - https with the same domain name
Mhttps://34.138.135.146/ 34.138.135.146
403

Misconfiguration - main pages should never send http status 400 - 499
Nhttps://34.138.135.146/ 34.138.135.146
403

Error - Certificate isn't trusted, RemoteCertificateNameMismatch
XFatal error: Nameserver doesn't support TCP connection: ns-cloud-e1.googledomains.com: NXDOMAIN
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.my.yubico.com

2. Header-Checks

Amy.yubico.com 34.138.135.146
Content-Security-Policy
Ok: Header without syntax errors found: default-src 'none'; script-src 'unsafe-inline';
A

Good: default-src directive only with 'none' or 'self', additional sources are blocked.
A

Good: default-src without 'unsafe-inline' or 'unsave-eval'.
E

Bad: No form-action directive found. Use one to limit the form - action - destinations. form-action is a navigation-directive, so default-src isn't used.
E

Bad: No frame-ancestors directive found. Use one to limit the pages allowed to use this page in frame / iframe / object / embed / applet. frame-ancestors is a navigation-directive, so default-src isn't used.
E

Bad: No base-uri directive found. Use one to limit the URLs which can be used in a document's <base> element. Because it's a document directive, default-src isn't used, so an own directive is required.
A

Good: No object-src found, but the default-src used as fallback is defined and restricted.
F

Critical: script-src with 'unsafe-inline' or 'unsafe-eval' and without a nonce found. That's dangerous, don't use it. If you really need one of these unsafe directives, add a nonce.
A

Good: script-src without * and a scheme found.
A

Good: script-src without data: schema found. Why is this important? The data: schema allows hidden code injection. Insert <script src='data:application/javascript;base64,YWxlcnQoJ1hTUycpOw=='></script> in your page and see what happens.
A

Good: frame-src without data: defined or frame-src missing and the default-src used as fallback not allows the data: schema. That blocks hidden code injection. Insert <iframe src="data:text/html;charset=utf-8;base64,PCFET0NUWVBFIGh0bWw+PGh0bWw+PGJvZHk+PHA+YmVmb3JlPHNjcmlwdCB0eXBlPSJ0ZXh0L2phdmFzY3JpcHQiPmFsZXJ0KCdYU1MnKTwvc2NyaXB0PjxwPmFmdGVyPC9ib2R5PjwvaHRtbD4="></iframe> in your page and see what happens.
A
X-Content-Type-Options
Ok: Header without syntax errors found: nosniff
A
X-Frame-Options
Ok: Header without syntax errors found: SAMEORIGIN
B

Info: Header is deprecated. May not longer work in modern browsers. SAMEORIGIN. Better solution: Use a Content-Security-Policy Header with a frame-ancestors directive. DENY - use 'none', SAMEORIGIN - use 'self'. If you want to allow some domains to frame your page, add these urls.
A
X-Xss-Protection
Ok: Header without syntax errors found: 1; mode=block
B

Info: Header is deprecated. May not longer work in modern browsers. 1; mode=block
Fmy.yubico.com 34.138.135.146
Referrer-Policy
Critical: Missing Header:
Fmy.yubico.com 34.138.135.146
Permissions-Policy
Critical: Missing Header:
Bmy.yubico.com 34.138.135.146
Cross-Origin-Embedder-Policy
Info: Missing Header
Bmy.yubico.com 34.138.135.146
Cross-Origin-Opener-Policy
Info: Missing Header
Bmy.yubico.com 34.138.135.146
Cross-Origin-Resource-Policy
Info: Missing Header

3. DNS- and NameServer - Checks

AInfo:: 15 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 4 Name Servers.
AInfo:: 15 Queries complete, 15 with IPv6, 0 with IPv4.
AGood: All DNS Queries done via IPv6.
Ok (4 - 8):: An average of 3.8 queries per domain name server required to find all ip addresses of all name servers.
AInfo:: 4 different Name Servers found: ns-1322.awsdns-37.org, ns-689.awsdns-22.net, ns-cloud-e1.googledomains.com, ns-cloud-e2.googledomains.com, 4 Name Servers included in Delegation: ns-1322.awsdns-37.org, ns-689.awsdns-22.net, ns-cloud-e1.googledomains.com, ns-cloud-e2.googledomains.com, 4 Name Servers included in 1 Zone definitions: ns-1322.awsdns-37.org, ns-689.awsdns-22.net, ns-cloud-e1.googledomains.com, ns-cloud-e2.googledomains.com, 2 Name Servers listed in SOA.Primary: ns-1322.awsdns-37.org, ns-cloud-e1.googledomains.com.
Error: Different SOA.Primary Name Servers found, different SOA Definitions.: ns-1322.awsdns-37.org,ns-cloud-e1.googledomains.com.
Error: SOA.Primary Name Server not included in the delegation set.: ns-1322.awsdns-37.org,ns-cloud-e1.googledomains.com.
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.
AInfo: Ipv4-Subnet-list: 4 Name Servers, 2 different subnets (first Byte): 205., 216., 2 different subnets (first two Bytes): 205.251., 216.239., 4 different subnets (first three Bytes): 205.251.194., 205.251.197., 216.239.32., 216.239.34.
AGood: Name Server IPv4-addresses from different subnet found:
AInfo: IPv6-Subnet-list: 4 Name Servers with IPv6, 2 different subnets (first block): 2001:, 2600:, 2 different subnets (first two blocks): 2001:4860:, 2600:9000:, 3 different subnets (first three blocks): 2001:4860:4802:, 2600:9000:5302:, 2600:9000:5305:, 4 different subnets (first four blocks): 2001:4860:4802:0032:, 2001:4860:4802:0034:, 2600:9000:5302:b100:, 2600:9000:5305:2a00:
AGood: Name Server IPv6 addresses from different subnets found.
AGood: Nameserver supports TCP connections: 16 good Nameserver
AGood: Nameserver supports Echo Capitalization: 16 good Nameserver
AGood: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 16 good Nameserver
AGood: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 16 good Nameserver
AGood: All SOA have the same Serial Number
AGood: CAA entries found, creating certificate is limited: no CAA is allowed to create certificates
AGood: CAA entries found, creating certificate is limited: amazon.com is allowed to create certificates
AGood: CAA entries found, creating certificate is limited: digicert.com is allowed to create certificates
AGood: CAA entries found, creating certificate is limited: globalsign.com is allowed to create certificates
AGood: CAA entries found, creating certificate is limited: letsencrypt.org is allowed to create certificates
AGood: CAA entries found, creating certificate is limited: pki.goog is allowed to create certificates
AGood: CAA entries found, creating certificate is limited: pki.goog is allowed to create wildcard-certificates

4. Content- and Performance-critical Checks

https://my.yubico.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.
https://my.yubico.com/ 34.138.135.146
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://my.yubico.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
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://my.yubico.com/ 34.138.135.146
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://my.yubico.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
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.
AGood: Every https connection via port 443 supports the http/2 protocol via ALPN.
AGood: All checked attribute values are enclosed in quotation marks (" or ').
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: 277330 milliseconds, 277.330 seconds

 

8. Connections

DomainIPPortCert.ProtocolKeyExchangeStrengthCipherStrengthHashAlgorithmOCSP stapling
Domain/KeyExchangeIP/StrengthPort/CipherCert./StrengthProtocol/HashAlgorithmOCSP stapling
my.yubico.com
34.138.135.146
443
ok
Tls12
ECDH Ephermal
255
Aes128
128
Sha256
not supported
ok
my.yubico.com
34.138.135.146
443
ok
Tls12

ECDH Ephermal
255
Aes128
128
Sha256
not supported
ok
http/2 via ALPN supported 
SNI required
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
http/2 via ALPN supported
SNI required
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
Chain (complete)

1CN=my.yubico.com


2CN=R10, O=Let's Encrypt, C=US


my.yubico.com
my.yubico.com
443
ok
Tls12
ECDH Ephermal
255
Aes128
128
Sha256
not supported
ok

my.yubico.com
my.yubico.com
443
ok
Tls12

ECDH Ephermal
255
Aes128
128
Sha256
not supported
ok
http/2 via ALPN supported 
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
http/2 via ALPN supported
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
Chain (complete)

1CN=my.yubico.com


2CN=R10, O=Let's Encrypt, C=US


34.138.135.146
34.138.135.146
443
name does not match
Tls12
ECDH Ephermal
255
Aes128
128
Sha256
not supported
ok

34.138.135.146
34.138.135.146
443
name does not match
Tls12

ECDH Ephermal
255
Aes128
128
Sha256
not supported
ok
http/2 via ALPN supported 
Cert sent without SNI
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
http/2 via ALPN supported
Cert sent without SNI
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
Chain (complete)

1CN=app.k8s.yubico.org


2CN=R12, O=Let's Encrypt, C=US

 

9. Certificates

1.
1.
CN=my.yubico.com
17.08.2025
15.11.2025
240 days expired
my.yubico.com - 1 entry
1.
1.
CN=my.yubico.com
17.08.2025

15.11.2025
240 days expired


my.yubico.com - 1 entry

KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:06033DAF40442760FF93169262E287EB9252
Thumbprint:D859F7589D5489B57B69B3646C2FFEEC783FB1A8
SHA256 / Certificate:ja33aj/XT0jwD+Pg7HTI87PEx2ZOitcQevemer6twS0=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):76b342ba434a2688fec9cc5daffce3dc6e31c8c79a885275ad3e989922e597d9
SHA256 hex / Subject Public Key Information (SPKI):76b342ba434a2688fec9cc5daffce3dc6e31c8c79a885275ad3e989922e597d9 (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: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=R10, O=Let's Encrypt, C=US
13.03.2024
13.03.2027
expires in 243 days


2.
CN=R10, O=Let's Encrypt, C=US
13.03.2024

13.03.2027
expires in 243 days




KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:4BA85293F79A2FA273064BA8048D75D0
Thumbprint:00ABEFD055F9A9C784FFDEABD1DCDD8FED741436
SHA256 / Certificate:nXw/GqatKy7A1c8eJG+NmubLyf0HVa03u5dLHy+2A/M=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):2bbad93ab5c79279ec121507f272cbe0c6647a3aae52e22f388afab426b4adba
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 3248 days


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

04.06.2035
expires in 3248 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=app.k8s.yubico.org
20.09.2025
19.12.2025
206 days expired
api.fc.yubico.org, api.snipe.yubico.org, api.techdb.k8s.yubico.org, api.techdb.yubico.org, app.k8s.yubico.org, appl3-default-us1.k8s.yubico.org, appl3-fastly-us1.k8s.yubico.org, backend-50b784ec.store.yubico.org, backend-bc34g32v.store.yubico.org, backend-dcfa8e03.store.yubico.org, backend-xy7k8p3g.store.yubico.org, backend.store.yubico.org, castillos.yubico.org, deploy.wordpress.yubico.org, docs.dbt.k8s.yubico.org, fc.yubico.org, okta-scim.snipe.k8s.yubico.org, packerwebapi.fc.yubico.org, passkey-demo.k8s.yubico.com, release-manager.store.k8s.yubico.org, rivendell.yubico.org, serviceconsole.yubico.org, snipe.yubico.org, storybook.yubico.org, style.yubico.org, techdb.k8s.yubico.org, techdb.yubico.org, wordpress-vrt.yubico.org, ye-broker.yubico.org, yfa.yubico.org, ypj.yubico.org - 31 entries
2.
1.
CN=app.k8s.yubico.org
20.09.2025

19.12.2025
206 days expired


api.fc.yubico.org, api.snipe.yubico.org, api.techdb.k8s.yubico.org, api.techdb.yubico.org, app.k8s.yubico.org, appl3-default-us1.k8s.yubico.org, appl3-fastly-us1.k8s.yubico.org, backend-50b784ec.store.yubico.org, backend-bc34g32v.store.yubico.org, backend-dcfa8e03.store.yubico.org, backend-xy7k8p3g.store.yubico.org, backend.store.yubico.org, castillos.yubico.org, deploy.wordpress.yubico.org, docs.dbt.k8s.yubico.org, fc.yubico.org, okta-scim.snipe.k8s.yubico.org, packerwebapi.fc.yubico.org, passkey-demo.k8s.yubico.com, release-manager.store.k8s.yubico.org, rivendell.yubico.org, serviceconsole.yubico.org, snipe.yubico.org, storybook.yubico.org, style.yubico.org, techdb.k8s.yubico.org, techdb.yubico.org, wordpress-vrt.yubico.org, ye-broker.yubico.org, yfa.yubico.org, ypj.yubico.org - 31 entries

KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:06489D54ADEB89802FA61C90CC9DF2C5D0AD
Thumbprint:E2EA65DDE5869E4387AC2B3F28DABF9D252491A3
SHA256 / Certificate:noBVPoVr1iQzmY6XuOmHMZFsbOmCSR/2gzXUPWy5efE=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):45727afcd1e1613b264b8e57550e3cc71c0ca4e83d793d96c2f6c7358f0c29da
SHA256 hex / Subject Public Key Information (SPKI):45727afcd1e1613b264b8e57550e3cc71c0ca4e83d793d96c2f6c7358f0c29da (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Check unknown. No result 404 / 200
OCSP - Url:
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=R12, O=Let's Encrypt, C=US
13.03.2024
13.03.2027
expires in 243 days


2.
CN=R12, O=Let's Encrypt, C=US
13.03.2024

13.03.2027
expires in 243 days




KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:00C212324B70A9B49171DC40F7E285263C
Thumbprint:EE44782835D8FB31394DA5CEB840DC93849BCF5A
SHA256 / Certificate:Ex/Od4QBaJmloAIDqe/IDxjrvXVYBxftwVU1gJMINuw=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):919c0df7a787b597ed056ace654b1de9c0387acf349f73734a4fd7b58cf612a4
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 3248 days


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

04.06.2035
expires in 3248 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=R3, O=Let's Encrypt, C=US
0
0
2
CN=R10, O=Let's Encrypt, C=US
0
0
1
CN=GTS CA 1D4, O=Google Trust Services LLC, C=US
0
0
1

CertSpotter-IdIssuernot beforenot afterDomain namesLE-Duplicatenext LE
11522021492
leaf cert
CN=R10, O=Let's Encrypt, C=US
2025-08-17 02:53:59
2025-11-15 02:53:58
my.yubico.com - 1 entries


4890061749
leaf cert
CN=R3, O=Let's Encrypt, C=US
2023-03-01 17:26:53
2023-05-30 17:26:52
my.yubico.com - 1 entries


4862289512
precert
CN=GTS CA 1D4, O=Google Trust Services LLC, C=US
2023-02-23 13:46:51
2023-05-24 14:37:42
my.yubico.com - 1 entries


4757163558
leaf cert
CN=R3, O=Let's Encrypt, C=US
2023-01-31 06:52:05
2023-05-01 06:52:04
my.yubico.com - 1 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://my.yubico.com/
34.138.135.146
meta
other
1

0


0
0
0

 

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

DomainnameHtml-Elementname/equiv/ property/relhref/src/contentHttpStatusmsgStatus
https://my.yubico.com/
34.138.135.146
meta
charset
utf-8


1
ok














 

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

Url used (first standard-https-result with http status 200): https://my.yubico.com/

Summary

Good: No non-document-errors
0 errors
1 warnings

TypeMessagenum found
1.warningThe type attribute is unnecessary for JavaScript resources.1

Details


TypeMessage + Sample
1warningThe type attribute is unnecessary for JavaScript resources.

From line 8, column 5 to line 8, column 35

body> <script type="text/javascript">

 

13. Nameserver - IP-Adresses

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers: ns-1322.awsdns-37.org, ns-689.awsdns-22.net, ns-cloud-e1.googledomains.com, ns-cloud-e2.googledomains.com

 

QNr.DomainTypeNS used
1
org
NS
b.root-servers.net (2001:500:200::b)

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-1322.awsdns-37.org
NS
a0.org.afilias-nst.info (2001:500:e::1)

Answer: g-ns-1064.awsdns-37.org, g-ns-1637.awsdns-37.org, g-ns-165.awsdns-37.org, g-ns-743.awsdns-37.org

Answer: g-ns-1064.awsdns-37.org
205.251.196.40, 2600:9000:5304:2800::1

Answer: g-ns-1637.awsdns-37.org
205.251.198.101, 2600:9000:5306:6500::1

Answer: g-ns-165.awsdns-37.org
205.251.192.165, 2600:9000:5300:a500::1

Answer: g-ns-743.awsdns-37.org
205.251.194.231, 2600:9000:5302:e700::1
3
net
NS
f.root-servers.net (2001:500:2f::f)

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
4
ns-689.awsdns-22.net
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: g-ns-1366.awsdns-22.net, g-ns-1942.awsdns-22.net, g-ns-471.awsdns-22.net, g-ns-792.awsdns-22.net

Answer: g-ns-1366.awsdns-22.net
205.251.197.86, 2600:9000:5305:5600::1

Answer: g-ns-1942.awsdns-22.net
205.251.199.150, 2600:9000:5307:9600::1

Answer: g-ns-471.awsdns-22.net
205.251.193.215, 2600:9000:5301:d700::1

Answer: g-ns-792.awsdns-22.net
205.251.195.24, 2600:9000:5303:1800::1
5
com
NS
m.root-servers.net (2001:dc3::35)

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-cloud-e1.googledomains.com
NS
l.gtld-servers.net (2001:500:d937::30)

Answer: ns5.googledomains.com, ns6.googledomains.com, ns7.googledomains.com, ns8.googledomains.com

Answer: ns5.googledomains.com
2001:4860:4802:32::a, 216.239.32.10

Answer: ns6.googledomains.com
2001:4860:4802:34::a, 216.239.34.10

Answer: ns7.googledomains.com
2001:4860:4802:36::a, 216.239.36.10

Answer: ns8.googledomains.com
2001:4860:4802:38::a, 216.239.38.10
7
ns-cloud-e2.googledomains.com
NS
l.gtld-servers.net (2001:500:d937::30)

Answer: ns5.googledomains.com, ns6.googledomains.com, ns7.googledomains.com, ns8.googledomains.com

Answer: ns5.googledomains.com
2001:4860:4802:32::a, 216.239.32.10

Answer: ns6.googledomains.com
2001:4860:4802:34::a, 216.239.34.10

Answer: ns7.googledomains.com
2001:4860:4802:36::a, 216.239.36.10

Answer: ns8.googledomains.com
2001:4860:4802:38::a, 216.239.38.10
8
ns-1322.awsdns-37.org: 205.251.197.42
A
g-ns-1064.awsdns-37.org (2600:9000:5304:2800::1)
9
ns-1322.awsdns-37.org: 2600:9000:5305:2a00::1
AAAA
g-ns-1064.awsdns-37.org (2600:9000:5304:2800::1)
10
ns-689.awsdns-22.net: 205.251.194.177
A
g-ns-1366.awsdns-22.net (2600:9000:5305:5600::1)
11
ns-689.awsdns-22.net: 2600:9000:5302:b100::1
AAAA
g-ns-1366.awsdns-22.net (2600:9000:5305:5600::1)
12
ns-cloud-e1.googledomains.com: 216.239.32.110
A
ns5.googledomains.com (2001:4860:4802:32::a)
13
ns-cloud-e1.googledomains.com: 2001:4860:4802:32::6e
AAAA
ns5.googledomains.com (2001:4860:4802:32::a)
14
ns-cloud-e2.googledomains.com: 216.239.34.110
A
ns5.googledomains.com (2001:4860:4802:32::a)
15
ns-cloud-e2.googledomains.com: 2001:4860:4802:34::6e
AAAA
ns5.googledomains.com (2001:4860:4802:32::a)

 

14. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
my-yubico-com.k8s.yubico.com



1
0
www.my.yubico.com
5
issue
;
1
0

5
iodef
mailto:tlsadmin@yubico.com
1
0
k8s.yubico.com
5
issue
letsencrypt.org
1
0

5
iodef
mailto:tlsadmin@yubico.com
1
0

5
issue
pki.goog
1
0

9
issuewild
pki.goog
1
0
my.yubico.com



1
0
yubico.com
5
issue
amazon.com
1
0

5
issue
amazon.com
1
0

5
issue
digicert.com
1
0

5
issue
digicert.com
1
0

5
issue
globalsign.com
1
0

5
issue
globalsign.com
1
0

5
issue
letsencrypt.org
1
0

5
issue
letsencrypt.org
1
0

5
iodef
mailto:tlsadmin@yubico.com
1
0

5
iodef
mailto:tlsadmin@yubico.com
1
0
com
0

no CAA entry found
1
0

0

no CAA entry found
1
0

 

15. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
yubico.com
1password-site-verification=C4VBIWTNYFER5OOCHVJU2MTAII
ok
1
0
yubico.com
apple-domain-verification=i0pfFG8KLQYxra5p
ok
1
0
yubico.com
asv=d97e483b7a01012ed7d4a3571fc4f5fe
ok
1
0
yubico.com
atlassian-domain-verification=ipTaHvUYHB5m2sGAHn+wb0QAZaDU1OhT9I1zWtt5qbn81IDeYBquZ+lcXlrYOPCx
ok
1
0
yubico.com
atlassian-sending-domain-verification=762db5fe-698c-4d93-a0ed-b4415055f802
ok
1
0
yubico.com
docker-verification=7eaae4cf-2bdb-4528-8c12-ae3ec18d9dac
ok
1
0
yubico.com
docusign=344e3a2e-fe49-42a4-b5ae-fd23dcc0b72f
ok
1
0
yubico.com
google-site-verification=1Q7E_o_fcik3HTCdhgqWhULWNp3Tc3V8UbdFiv9usvI
ok
1
0
yubico.com
google-site-verification=3dYE5o6tXr58Ifp_dTq21Pe78QFiWgA_ZgLviwczyGY
ok
1
0
yubico.com
google-site-verification=aKR17QT6FyB3SwlRCUfJkYW82P0uU_4vIk3iBGjb7wY
ok
1
0
yubico.com
google-site-verification=cm0ud8DosbawIseioZWR5-l6uLFogwEYR8OpHXcWe1w
ok
1
0
yubico.com
google-site-verification=dSJYQW_buweb2dPfaXPJslY-ccmx_zIGbR1hffFU1fs
ok
1
0
yubico.com
google-site-verification=E1u4QIF_yGIEmo1_LSfDWeP9pWQEnzSuunTGXfluvWc
ok
1
0
yubico.com
google-site-verification=IHur8NDPA0N7kMAF1f2q_vJ-Rk7S8hxpcvn92sEew-s
ok
1
0
yubico.com
google-site-verification=KzzqYTzZ6c_YEowjKkmu7woBL2G9Z0VQgiR5nh8ndVc
ok
1
0
yubico.com
have-i-been-pwned-verification=7528d8520a54a3233cb42c26bef59498
ok
1
0
yubico.com
MS=ms15291863
ok
1
0
yubico.com
slack-domain-verification=iRSAt0gjfeLmlsS50OKy7pZFFt8ANdQdAhdnH33t
ok
1
0
yubico.com
v=spf1 ip4:46.235.224.245/32 ip4:104.130.74.24/32 include:_spf.google.com include:rp.oracleemaildelivery.com include:eu.rp.oracleemaildelivery.com include:ap.rp.oracleemaildelivery.com ip4:103.151.192.0/23 ip4:185.12.80.0/22 ip4:188.172.128.0/20 ip4:192.1 61.144.0/20 ip4:216.198.0.0/18 exists:%{i}._spf.mta.salesforce.com ~all
ok
1
0
my.yubico.com


1
0
www.my.yubico.com

ok
1
0
_acme-challenge.my.yubico.com


1
0
_acme-challenge.www.my.yubico.com

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

perhaps wrong
1
0
_acme-challenge.my.yubico.com.my.yubico.com

perhaps wrong
1
0
_acme-challenge.my-yubico-com.k8s.yubico.com


1
0
_acme-challenge.www.my.yubico.com.my.yubico.com

perhaps wrong
1
0
_acme-challenge.www.my.yubico.com.www.my.yubico.com

perhaps wrong
1
0
_acme-challenge.my-yubico-com.k8s.yubico.com.my-yubico-com.k8s.yubico.com

Name Error - The domain name does not exist
1
0

 

16. DomainService - Entries

TypeDomainPrefValueDNS-errornum AnswersStatusDescription
SPF
TXT
my.yubico.com

32768TXT expected, but CNAME found. CNAME not allowed, only TXT queries are allowed. See RFC 7208, 4.4.

 

 

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=a36eb9fd-7490-46f7-b575-c738fe88dcd2

 

Last Result: https://check-your-website.server-daten.de/?q=my.yubico.com - 2025-09-24 01:52:52

 

Do you like this page? Support this tool, add a link on your page:

 

<a href="https://check-your-website.server-daten.de/?q=my.yubico.com" target="_blank">Check this Site: my.yubico.com</a>

 

 

Do you really want to support this project? Donate: Check-your-website, IBAN DE98 1001 0010 0575 2211 07, SWIFT/BIC PBNKDEFF, Euro

 

QR-Code of this page - https://check-your-website.server-daten.de/?d=my.yubico.com