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 1stcl.se
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- *.1stcl.se
- Valid from
- Jun 20, 2026
- Valid until
- Sep 18, 2026 (58 days remaining)
- Public key
- EC 256-bit
- Serial
- 0584EC9DA18A3447CE08654FC8C3BBC457F5
- SHA-256 fingerprint
- B8:1A:4E:C5:81:C0:53:26:64:7B:70:72:EB:49:27:B1:A4:BE:A6:4B:CA:CB:62:60:0A:75:BE:CC:2E:BE:C7:75
- 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.