SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
e-cargo.edu.pl
SSL/TLS Certificate
SSL/TLS Certificate for e-cargo.edu.pl
Valid- Issued by (CA)
- Asseco Data Systems S.A.
- Subject
- e-cargo.edu.pl
- Valid from
- Mar 11, 2026
- Valid until
- Mar 11, 2027 (182 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 21F87199C65538C6FEB84DB6DDAD70A9
- SHA-256 fingerprint
- 55:B8:91:28:E4:0B:03:88:4E:8C:33:74:4B:BD:78:76:B6:D5:01:00:56:86:8B:7F:13:AA:A0:EB:85:EB:B8:B2
- Chain
- Certum DV TLS G2 R39 CA → Certum Trusted Root CA
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by e-cargo.edu.pl's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch e-cargo.edu.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.
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