SSL/TLS Certificate Lookup

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

oldham.ac.uk

SSL/TLS Certificate

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SSL/TLS Certificate for oldham.ac.uk

Valid
Issued by (CA)
Let's Encrypt
Subject
oldham.ac.uk
Valid from
Jul 21, 2026
Valid until
Oct 19, 2026 (89 days remaining)
Public key
RSA 2048-bit
Serial
0508523AF22A2DEE5BDA07DC2B99EF5A33FD
SHA-256 fingerprint
B1:5F:59:6B:9C:C5:48:1C:41:48:A2:69:B4:CA:CD:6B:4C:F7:63:B5:6B:1D:12:2A:4E:FE:11:7B:41:52:CE:66
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (2)
oldham.ac.uk, www.oldham.ac.uk

Certificate Authority Authorization (CAA)

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