SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sefira.ai
SSL/TLS Certificate
SSL/TLS Certificate for sefira.ai
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- sefira.ai
- Valid from
- Sep 8, 2026
- Valid until
- Dec 7, 2026 (64 days remaining)
- Public key
- EC 256-bit
- Serial
- 053B4EDF2B40B2365C1CF58B35AB9C79E0B0
- SHA-256 fingerprint
- 41:DD:43:FF:86:2A:24:CB:DA:5E:4F:3E:55:4D:D4:D6:8E:6F:3C:37:40:ED:3C:51:62:CA:1B:A0:86:AE:60:21
- Chain
- YE2 → Root YE → ISRG Root X2 → 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 Sep 12, 2026.
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Uptime
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DNS changes
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TLS certificate
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