SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
optica-sofia.com
SSL/TLS Certificate
SSL/TLS Certificate for optica-sofia.com
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- *.optica-sofia.com
- Valid from
- Apr 17, 2026
- Valid until
- Jul 16, 2026 (expired 63 days ago)
- Public key
- RSA 2048-bit
- Serial
- 05B23A6A88DC434D8B50D36D044E29A9B9D1
- SHA-256 fingerprint
- CF:E0:AB:B2:EE:4C:F1:F2:6E:57:C6:7E:54:C7:B0:F0:03:F7:E7:4E:EB:96:CF:F6:B1:B6:C1:56:D1:26:60:B9
- 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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