SSL/TLS Certificate Lookup

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

marlin.ac.uk

SSL/TLS Certificate

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SSL/TLS Certificate for marlin.ac.uk

Hostname mismatch
Issued by (CA)
Let's Encrypt
Subject
www.marlin.ac.uk
Valid from
Jun 19, 2026
Valid until
Sep 17, 2026 (57 days remaining)
Public key
EC 256-bit
Serial
055F15AED60E132FD2C9CC128B04E2FE49CD
SHA-256 fingerprint
29:C1:FC:9A:6A:68:5B:8E:12:BF:B0:72:6D:2F:D0:C0:3C:F4:08:EC:A7:AC:6D:BA:49:77:C0:B7:6A:D9:40:46
Chain
YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (1)
www.marlin.ac.uk

Certificate Authority Authorization (CAA)

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