SSL/TLS Certificate Lookup

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

sigma.com.pl

SSL/TLS Certificate

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SSL/TLS Certificate for sigma.com.pl

Valid
Issued by (CA)
Asseco Data Systems S.A.
Subject
sigma.com.pl
Valid from
Feb 27, 2026
Valid until
Feb 27, 2027 (220 days remaining)
Public key
RSA 4096-bit
Serial
114DCD4481394361F51AC52C95AD2306
SHA-256 fingerprint
4A:98:EA:6E:B5:AD:5A:DF:22:AD:B4:26:27:0D:B2:A2:B3:BF:3F:5D:DA:52:F9:7C:55:65:F5:24:9A:3B:F1:DE
Chain
Certum DV TLS G2 R39 CA → Certum Trusted Root CA → Certum Trusted Network CA
Subject Alternative Names (2)
sigma.com.pl, www.sigma.com.pl

Certificate Authority Authorization (CAA)

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