SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
seme-lab.ru
SSL/TLS Certificate
SSL/TLS Certificate for seme-lab.ru
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- seme-lab.ru
- Valid from
- Jan 6, 2026
- Valid until
- Apr 6, 2026 (expired 215 days ago)
- Public key
- RSA 2048-bit
- Serial
- 05308F6A1BA3EA25458D1777E6454B4C0A09
- SHA-256 fingerprint
- E8:40:35:A9:65:79:DE:FE:D0:2B:6C:6F:F3:B9:38:D4:E3:8E:FE:AF:7E:32:1A:F5:46:32:1D:05:3D:A3:5C:BB
- Chain
- R13 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Oct 5, 2026.
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Uptime
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DNS changes
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TLS certificate
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