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 zawoja-portal.pl

Hostname mismatch
Issued by (CA)
Asseco Data Systems S.A.
Subject
*.pmart.pl
Valid from
Feb 7, 2026
Valid until
Feb 7, 2027 (172 days remaining)
Public key
RSA 4096-bit
Serial
0BD59DD99DEA225EF05310D4233B0CA8
SHA-256 fingerprint
03:DF:9E:54:9C:AE:EF:73:A5:DF:40:DF:A5:E2:30:8F:F3:F9:49:6A:C9:59:FA:BB:1B:DC:9C:81:CD:57:20:2C
Chain
Certum DV TLS G2 R39 CA → Certum Trusted Root CA
Subject Alternative Names (2)
*.pmart.pl, pmart.pl

Certificate Authority Authorization (CAA)

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

Never get surprised by zawoja-portal.pl's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch zawoja-portal.pl continuously, notifying you the moment anything moves across all three signals:

Uptime

We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.

DNS changes

We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.

TLS certificate

We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.