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

chinagb.net · 110.42.100.218:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. SSL operation failed with code 1. OpenSSL Error messages: error:0A000086:SSL routines::certificate verify failed

Certificate verification failed

Subject
CN=TRAEFIK DEFAULT CERT
Issuer
CN=TRAEFIK DEFAULT CERT
Valid from
2026-10-31T11:05:34+00:00
Expires
2027-10-31T11:05:34+00:00
Days remaining
358
Serial (hex)
70A9063C99E8231E35BC6375C0451F64
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:a39dac30b88cd0dda94d48be7d4897bd.4b6fafb4dc928b379cc0648fbdcf5ded.traefik.default

SHA-256 fingerprint

E4:98:21:42:66:23:32:8F:44:7E:6E:37:B2:0F:7B:9F:C2:A6:1B:7C:CD:56:8A:84:1A:F3:0C:9E:A9:BC:F3:FF
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment, Data Encipherment, Key Agreement
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectAltName
DNS:a39dac30b88cd0dda94d48be7d4897bd.4b6fafb4dc928b379cc0648fbdcf5ded.traefik.default
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-11-06T19:21:12+00:00

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

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