DNS
THE CERTIFICATE BEHIND THE CONNECTION

TLS certificate checker.

Inspect SSL/TLS certificates for any public domain or subdomain.

Checks HTTPS on port 443, including subject alternative names, validity dates and the presented chain.

SSL certificate

TLSv1.3

m3connect.de · 91.90.85.191:443

Verified

Certificate chain, hostname and dates verified using this server’s CA store.

Subject
C=DE ST=Nordrhein-Westfalen L=Aachen O=m3connect GmbH CN=*.m3connect.de
Issuer
C=US ST=Arizona L=Scottsdale O=GoDaddy.com, Inc. OU=http://certs.godaddy.com/repository/ CN=Go Daddy Secure Certificate Authority - G2
Valid from
2026-05-22T17:39:47+00:00
Expires
2026-12-06T17:39:47+00:00
Days remaining
74
Serial (hex)
D12DE2C04FB3E71C
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:*.m3connect.de, DNS:m3connect.de

SHA-256 fingerprint

A6:3D:95:64:96:1D:67:B3:18:4D:11:3F:57:A8:F4:92:E2:D7:00:CA:AC:A5:33:36:A3:BA:FF:31:66:95:02:08
Certificate extensions & PEM
basicConstraints
CA:FALSE
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
keyUsage
Digital Signature, Key Encipherment
crlDistributionPoints
Full Name: URI:http://crl.godaddy.com/gdig2s2-44.crl
certificatePolicies
Policy: 2.23.140.1.2.2 Policy: 2.16.840.1.114413.1.7.23.2 CPS: http://certificates.godaddy.com/repository/
authorityInfoAccess
CA Issuers - URI:http://certificates.godaddy.com/repository/gdig2.crt OCSP - URI:http://ocsp.godaddy.com/
authorityKeyIdentifier
40:C2:BD:27:8E:CC:34:83:30:A2:33:D7:FB:6C:B3:F0:B4:2C:80:CE
subjectAltName
DNS:*.m3connect.de, DNS:m3connect.de
subjectKeyIdentifier
2F:7E:D2:B3:79:28:54:A9:7F:0F:78:DE:18:1F:69:D0:86:77:F8:E6
ct_precert_scts
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 : May 22 17:39:49.007 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:F9:E6:0E:74:90:D5:66:42:FC:3C:96: A5:8D:5D:82:A3:EC:77:3B:28:E6:10:4B:B3:AE:81:B4: 8C:22:06:84:DD:02:21:00:97:91:E0:CF:0E:09:47:A1: B2:6E:02:CF:38:AC:74:0B:DF:39:C6:EB:CA:08:8B:6B: 4F:69:B8:82:1E:73:4E:80 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 : May 22 17:39:49.209 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:9A:C2:85:F6:EB:AB:47:08:42:67:B1: D2:27:EF:3A:B4:C9:AC:73:CD:24:DD:B2:47:CD:C2:44: 8A:BD:C8:E1:29:02:20:35:AA:CC:F0:D0:4F:8B:D3:8C: 33:26:8A:8F:5B:B8:2F:6E:12:3C:89:B1:D8:62:81:8D: 29:3F:76:2A:FC:A1:F8 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 : May 22 17:39:49.381 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:91:B3:B2:F1:8C:39:BD:3D:11:5C:DC: F5:D1:A7:C2:B3:F9:7D:A5:09:9C:F4:11:92:96:6B:E7: D8:6A:E0:62:53:02:21:00:F5:4F:E3:52:0C:1A:3D:D0: AA:CF:86:85:B8:01:88:49:CD:4F:D6:78:87:16:2D:C8: 2C:6C:25:E3:EE:7F:EB:82
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-09-23T08:43:26+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US ST=Arizona L=Scottsdale O=GoDaddy.com, Inc. OU=http://certs.godaddy.com/repository/ CN=Go Daddy Secure Certificate Authority - G2
Issuer
C=US ST=Arizona L=Scottsdale O=GoDaddy.com, Inc. CN=Go Daddy Root Certificate Authority - G2
Valid from
2011-05-03T07:00:00+00:00
Expires
2031-05-03T07:00:00+00:00
Days remaining
1682
Serial (hex)
07
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

97:3A:41:27:6F:FD:01:E0:27:A2:AA:D4:9E:34:C3:78:46:D3:E9:76:FF:6A:62:0B:67:12:E3:38:32:04:1A:A6
Certificate extensions & PEM
basicConstraints
CA:TRUE
keyUsage
Certificate Sign, CRL Sign
subjectKeyIdentifier
40:C2:BD:27:8E:CC:34:83:30:A2:33:D7:FB:6C:B3:F0:B4:2C:80:CE
authorityKeyIdentifier
3A:9A:85:07:10:67:28:B6:EF:F6:BD:05:41:6E:20:C1:94:DA:0F:DE
authorityInfoAccess
OCSP - URI:http://ocsp.godaddy.com/
crlDistributionPoints
Full Name: URI:http://crl.godaddy.com/gdroot-g2.crl
certificatePolicies
Policy: X509v3 Any Policy CPS: https://certs.godaddy.com/repository/
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan.

View certificate JSON

Registration / WHOIS →DNS records →