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

sundns.com · 101.226.170.40:443

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
C=cn ST=guangdong O=sangfor OU=waf CN=CN
Issuer
C=cn ST=guangdong L=shenzhen O=sangfor OU=sf CN=sangfor.com
Valid from
2021-10-06T08:42:44+00:00
Expires
2031-10-04T08:42:44+00:00
Days remaining
1816
Serial (hex)
E6F925584C58810E
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

6F:BD:18:6A:57:E4:C6:D7:40:DB:26:90:21:B3:AF:FC:BD:BA:A1:F4:44:A6:C5:30:7A:93:2A:FA:54:43:0F:E9
Certificate extensions & PEM
basicConstraints
CA:FALSE
keyUsage
Digital Signature, Non Repudiation, Key Encipherment
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-13T18:25:12+00:00

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

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