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 sumos.dk
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- *.sumos.dk
- Valid from
- Jun 16, 2026
- Valid until
- Sep 14, 2026 (54 days remaining)
- Public key
- EC 256-bit
- Serial
- 0515A3D9EC920F282952A608A676395805EE
- SHA-256 fingerprint
- 0D:1B:73:34:5E:97:8E:15:49:13:F8:A7:A7:C1:94:79:FB:70:44:FC:D6:D7:B6:F8:87:A6:E4:98:4A:A4:C9:7F
- 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.