SSL/TLS Certificate Lookup

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

just42.org.uk

SSL/TLS Certificate

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SSL/TLS Certificate for just42.org.uk

Valid
Issued by (CA)
Let's Encrypt
Subject
just42.org.uk
Valid from
Jul 5, 2026
Valid until
Oct 3, 2026 (74 days remaining)
Public key
RSA 2048-bit
Serial
05FFB52C42A9710EF7419105C418F002EEC7
SHA-256 fingerprint
93:3C:6D:FE:D1:6B:D5:F2:94:DD:CD:9B:E8:58:EC:C1:AD:C8:29:70:BB:D3:A4:F9:8C:9F:06:1B:BB:D7:17:85
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (1)
just42.org.uk

Certificate Authority Authorization (CAA)

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