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 zeus.si
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- firax.si
- Valid from
- Oct 13, 2022
- Valid until
- Jan 11, 2023 (expired 1360 days ago)
- Public key
- RSA 2048-bit
- Serial
- 032C22778AD84FCFB78D098103B29E46D6A1
- SHA-256 fingerprint
- 08:1E:B6:7B:C6:FC:D1:1C:8F:99:A9:21:BA:25:81:B1:AD:DD:40:6C:89:7C:B6:0B:E7:11:08:0D:A4:BF:DF:A1
- Chain
- R3 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
We've observed 1 previous certificate for this host. This certificate has been served since Sep 25, 2026.
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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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