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 sefio.no
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- *.sefio.no
- Valid from
- Jun 18, 2026
- Valid until
- Sep 16, 2026 (56 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05F546A136100854695905A2F3A9E8424F26
- SHA-256 fingerprint
- 7A:93:85:8D:CC:11:88:3E:C2:51:F6:CC:9F:EB:49:79:D0:1F:89:C0:6C:DF:18:5C:CE:7D:6D:40:D4:67:8E:FD
- Chain
- YR1 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.