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SSL check results of dns.quad9.net

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Discover if the webservers of dns.quad9.net can be reached through a secure connection.

Summary

JSON Refresh

Report created Sat, 25 Oct 2025 00:51:42 +0000

The webservers of dns.quad9.net can be reached through a secure connection.

Servers

Hostname / IP address Certificates Protocol
dns.quad9.net
149.112.112.112
 dns.quad9.net
HSTS
missing
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s
dns.quad9.net
9.9.9.9
 dns.quad9.net
HSTS
missing
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s
dns.quad9.net
2620:fe::fe
 dns.quad9.net
HSTS
missing
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
1 s
dns.quad9.net
2620:fe::9
 dns.quad9.net
HSTS
missing
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
2 s

Certificates

First seen at:

CN=dns.quad9.net,O=Quad9,L=Zurich,ST=Zurich,C=CH

Certificate chain
Subject
Country (C)
  • CH
State (ST)
  • Zurich
Locality (L)
  • Zurich
Organization (O)
  • Quad9
Common Name (CN)
  • dns.quad9.net
Alternative Names
  • dns.quad9.net
  • dns-nosec.quad9.net
  • doh-brave.quad9.net
  • dns.resolver.quad9.net
  • alpha-dns.quad9.net
  • beta-dns.quad9.net
  • dns9.quad9.net
  • dns10.quad9.net
  • dns11.quad9.net
  • dns12.quad9.net
  • dns13.quad9.net
  • dns14.quad9.net
  • dns15.quad9.net
  • dns254.quad9.net
  • IP Address:9.9.9.9
  • IP Address:9.9.9.10
  • IP Address:9.9.9.11
  • IP Address:9.9.9.12
  • IP Address:9.9.9.13
  • IP Address:9.9.9.14
  • IP Address:9.9.9.15
  • IP Address:149.112.112.9
  • IP Address:149.112.112.10
  • IP Address:149.112.112.11
  • IP Address:149.112.112.12
  • IP Address:149.112.112.13
  • IP Address:149.112.112.14
  • IP Address:149.112.112.15
  • IP Address:149.112.112.112
  • IP Address:2620:FE:0:0:0:0:0:FE
  • IP Address:2620:FE:0:0:0:0:0:9
  • IP Address:2620:FE:0:0:0:0:0:10
  • IP Address:2620:FE:0:0:0:0:0:11
  • IP Address:2620:FE:0:0:0:0:0:12
  • IP Address:2620:FE:0:0:0:0:0:13
  • IP Address:2620:FE:0:0:0:0:0:14
  • IP Address:2620:FE:0:0:0:0:0:15
  • IP Address:2620:FE:0:0:0:0:FE:9
  • IP Address:2620:FE:0:0:0:0:FE:10
  • IP Address:2620:FE:0:0:0:0:FE:11
  • IP Address:2620:FE:0:0:0:0:FE:12
  • IP Address:2620:FE:0:0:0:0:FE:13
  • IP Address:2620:FE:0:0:0:0:FE:14
  • IP Address:2620:FE:0:0:0:0:FE:15
  • doh-chrome.quad9.net
  • doh-mozilla.quad9.net
Issuer
Country (C)
  • US
Organization (O)
  • DigiCert Inc
Common Name (CN)
  • DigiCert Global G3 TLS ECC SHA384 2020 CA1
validity period
Not valid before
2025-07-01
Not valid after
2026-07-27
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Agreement
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
48:2C:41:86:55:50:32:51:9D:3D:1D:AA:40:8F:AC:0E:63:C7:0A:F3:0D:22:AD:3E:57:C2:D4:9E:3B:4F:DB:DC
SHA1
D4:FD:29:4F:5E:3F:38:9C:46:9B:F1:54:CC:51:FC:00:D4:15:3B:98
X509v3 extensions
authorityKeyIdentifier
  • keyid:8A:23:EB:9E:6B:D7:F9:37:5D:F9:6D:21:39:76:9A:A1:67:DE:10:A8
subjectKeyIdentifier
  • E5:7D:41:EC:49:E0:7A:8B:45:57:6B:21:B3:21:BD:CB:3B:19:4F:6E
certificatePolicies
  • Policy: 2.23.140.1.2.2
  • CPS: http://www.digicert.com/CPS
crlDistributionPoints
  • Full Name:
  • URI:http://crl3.digicert.com/DigiCertGlobalG3TLSECCSHA3842020CA1-2.crl
  • Full Name:
  • URI:http://crl4.digicert.com/DigiCertGlobalG3TLSECCSHA3842020CA1-2.crl
authorityInfoAccess
  • OCSP - URI:http://ocsp.digicert.com
  • CA Issuers - URI:http://cacerts.digicert.com/DigiCertGlobalG3TLSECCSHA3842020CA1-2.crt
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : D7:6D:7D:10:D1:A7:F5:77:C2:C7:E9:5F:D7:00:BF:F9:
  • 82:C9:33:5A:65:E1:D0:B3:01:73:17:C0:C8:C5:69:77
  • Timestamp : Jul 1 20:07:15.923 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:D1:34:1F:7D:0B:2C:0E:31:AC:AE:E3:
  • F0:6D:5C:3A:0A:51:86:64:CF:4F:13:5F:9E:3D:5C:CE:
  • 2D:4B:1B:25:AA:02:20:64:2A:87:50:64:F9:FC:EA:11:
  • 2A:98:95:86:8E:55:57:0F:B2:24:55:F3:DD:02:60:15:
  • D0:C5:8D:D5:78:04:3D
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : C2:31:7E:57:45:19:A3:45:EE:7F:38:DE:B2:90:41:EB:
  • C7:C2:21:5A:22:BF:7F:D5:B5:AD:76:9A:D9:0E:52:CD
  • Timestamp : Jul 1 20:07:15.983 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:97:69:7D:06:64:41:F9:FF:8B:B0:30:
  • 07:FA:21:E2:DD:4F:CE:1F:29:29:56:DA:42:04:A2:8F:
  • FD:8D:2F:0E:37:02:21:00:C3:C6:B3:FA:B5:18:6B:B2:
  • 15:4B:20:CD:A0:0E:30:7F:2E:EA:E7:AD:F3:1B:18:A9:
  • D9:DD:F1:F0:EF:A9:EB:DC
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 94:4E:43:87:FA:EC:C1:EF:81:F3:19:24:26:A8:18:65:
  • 01:C7:D3:5F:38:02:01:3F:72:67:7D:55:37:2E:19:D8
  • Timestamp : Jul 1 20:07:16.004 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:26:58:41:63:BF:A9:0A:A4:FA:0E:ED:85:
  • 39:A0:A0:ED:77:F1:2C:E8:47:55:D7:30:F7:AD:B6:B1:
  • CB:41:83:25:02:21:00:AE:F3:01:42:9C:B4:7A:E0:8A:
  • FF:E9:9C:3B:47:D1:D3:66:88:79:44:C0:82:20:18:92:
  • 26:34:B6:3A:20:8F:A1