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 swtech.sk

Valid
Issued by (CA)
Let's Encrypt
Subject
swtech.sk
Valid from
Jun 17, 2026
Valid until
Sep 15, 2026 (55 days remaining)
Public key
EC 256-bit
Serial
062605B8691827F62CBB0AAFAC782AA8EB2F
SHA-256 fingerprint
7A:71:9F:E9:7E:5A:0C:73:E4:6B:C7:0A:10:3B:A1:55:9E:3B:5E:8B:09:2D:C4:CB:33:5F:06:CA:BC:F3:DC:3C
Chain
YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (1)
swtech.sk

Certificate Authority Authorization (CAA)

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