SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

freesco.pl

SSL/TLS Certificate

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SSL/TLS Certificate for freesco.pl

Hostname mismatch
Issued by (CA)
Let's Encrypt
Subject
emti.one.pl
Valid from
Jul 19, 2026
Valid until
Oct 17, 2026 (89 days remaining)
Public key
RSA 2048-bit
Serial
05E10FD3F23306943DF0252B8DEE9AEB56AE
SHA-256 fingerprint
0C:F7:F1:E3:A2:70:5F:FF:A2:8D:37:33:F6:BF:69:59:C7:6E:70:2C:2E:AE:5E:34:9F:40:58:30:1A:7E:1D:A3
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (2)
emti.one.pl, www.emti.one.pl

Certificate Authority Authorization (CAA)

The serving CA (Let's Encrypt) is authorized by this domain's CAA records (certum.pl, letsencrypt.org).