SSL/TLS Certificate Lookup

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

flounder.cn

SSL/TLS Certificate

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SSL/TLS Certificate for flounder.cn

Valid
Issued by (CA)
Let's Encrypt
Subject
flounder.cn
Valid from
May 26, 2026
Valid until
Aug 24, 2026 (34 days remaining)
Public key
EC 256-bit
Serial
06989DFF45FA34B869658CEB4E661306F49D
SHA-256 fingerprint
05:38:92:0A:51:AF:03:CB:75:1A:F2:C6:C8:32:A3:9C:9D:48:BC:D5:E0:69:04:47:5B:A7:FD:EA:B3:AA:D3:6E
Chain
E7 → ISRG Root X1
Subject Alternative Names (2)
flounder.cn, www.flounder.cn

Certificate Authority Authorization (CAA)

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