SSL/TLS Certificate Lookup

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

SSL/TLS Certificate for fsem.ac.uk

Valid
Issued by (CA)
Let's Encrypt
Subject
fsem.ac.uk
Valid from
Jul 15, 2026
Valid until
Oct 13, 2026 (84 days remaining)
Public key
EC 256-bit
Serial
056917F67122A5CE866963E2CCF9EF797E59
SHA-256 fingerprint
15:11:E6:80:FD:2B:09:0E:A7:AE:7D:5F:5C:30:40:63:40:51:EC:45:09:39:25:E1:20:6E:5D:06:0C:89:1D:46
Chain
YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (1)
fsem.ac.uk

Certificate Authority Authorization (CAA)

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