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 opns.se
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- opns.se
- Valid from
- Jun 12, 2026
- Valid until
- Sep 10, 2026 (50 days remaining)
- Public key
- EC 256-bit
- Serial
- 05C1550720AB144DE08DF4D256F425604B99
- SHA-256 fingerprint
- 09:8E:10:6E:4A:8E:09:0B:8A:0E:E0:2E:AD:DB:A0:24:BD:C9:A9:A0:BE:4D:0C:EA:4F:23:D4:92:0A:67:E5:53
- 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.