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 reffe.dk
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- reffe.dk
- Valid from
- Jul 4, 2026
- Valid until
- Oct 2, 2026 (72 days remaining)
- Public key
- EC 384-bit
- Serial
- 05B0B5301D4D4A61B6CA27F15277BDFC4E72
- SHA-256 fingerprint
- 14:E2:2A:AE:A6:8E:72:3A:17:70:38:31:DA:7F:F4:B2:DC:22:15:79:73:3D:B2:5A:6E:12:A2:86:8D:94:0E:36
- Chain
- YE1 → 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.