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 tehly-porotherm.sk

Hostname mismatch
Issued by (CA)
Let's Encrypt
Subject
*.r1.websupport.sk
Valid from
May 26, 2026
Valid until
Aug 24, 2026 (34 days remaining)
Public key
RSA 4096-bit
Serial
05A51405B50842432F40C1329369C292A24D
SHA-256 fingerprint
50:D7:C1:C7:9C:5D:94:00:3C:B3:B8:2B:FE:B6:A8:87:8E:92:C2:FA:4A:BD:86:C0:7B:D0:60:7F:D1:E3:45:86
Chain
R12 → ISRG Root X1
Subject Alternative Names (1)
*.r1.websupport.sk

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.