SSL/TLS Certificate Lookup

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

duckrun.fun

SSL/TLS Certificate

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SSL/TLS Certificate for duckrun.fun

Valid
Issued by (CA)
Let's Encrypt
Subject
*.duckrun.fun
Valid from
Jul 21, 2026
Valid until
Oct 19, 2026 (89 days remaining)
Public key
RSA 2048-bit
Serial
059AB4FE2054E649FC1B41469E058CE554A0
SHA-256 fingerprint
F2:0E:59:DC:09:D7:1E:43:4A:21:55:03:72:9B:49:5D:3E:38:C2:F8:AF:DF:8B:A9:01:64:C1:BA:62:52:46:A2
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (2)
*.duckrun.fun, duckrun.fun

Certificate Authority Authorization (CAA)

The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org, pki.goog, sectigo.com).

This certificate has been served since Jul 21, 2026.