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 dsl.cat
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- dsl.cat
- Valid from
- Jun 20, 2026
- Valid until
- Sep 18, 2026 (59 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05140835D505A1CBAA915DF980CF19257FBE
- SHA-256 fingerprint
- F4:06:35:1A:92:71:62:03:79:CE:DF:90:36:11:52:D7:2A:37:E2:06:D1:42:5C:0B:AE:B3:F1:B1:3A:D7:BE:3D
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.