SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
leijenaar.co.uk
SSL/TLS Certificate
SSL/TLS Certificate for leijenaar.co.uk
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- leijenaar.nl
- Valid from
- Dec 31, 2025
- Valid until
- Mar 31, 2026 (expired 140 days ago)
- Public key
- RSA 2048-bit
- Serial
- 05381961DD4A384CEB0429094B41391AD868
- SHA-256 fingerprint
- AC:B3:8A:B9:B0:4A:FE:FA:D8:72:22:8A:76:A2:99:19:7F:59:87:B9:DB:0A:8B:45:04:4C:4D:C2:0D:27:B2:CF
- Chain
- R13 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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Uptime
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DNS changes
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TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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