SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

gmref.cn

SSL/TLS Certificate

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SSL/TLS Certificate for gmref.cn

Valid
Issued by (CA)
ZeroSSL GmbH
Subject
gmref.cn
Valid from
Jun 24, 2026
Valid until
Sep 22, 2026 (62 days remaining)
Public key
EC 256-bit
Serial
A01904DD8305EF90C74E6A0575048DDC
SHA-256 fingerprint
B3:FA:13:86:60:CE:58:DA:9B:E7:AB:44:AB:8C:A2:24:19:20:05:B3:84:89:A4:F1:6C:EF:A5:80:5D:41:E0:52
Chain
ZeroSSL ECC DV SSL CA 2 → Sectigo Public Server Authentication Root E46 → USERTrust ECC Certification Authority
Subject Alternative Names (2)
gmref.cn, www.gmref.cn

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.