SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
seneka.pl
SSL/TLS Certificate
SSL/TLS Certificate for seneka.pl
Expiring soon- Issued by (CA)
- ZeroSSL GmbH
- Subject
- seneka.pl
- Valid from
- Jun 20, 2026
- Valid until
- Sep 18, 2026 (14 days remaining)
- Public key
- RSA 4096-bit
- Serial
- D6AFE66CBA1BD628B1B87289D1B6C503
- SHA-256 fingerprint
- 52:28:E8:C0:E5:C5:EF:21:1C:24:3B:66:5C:D6:7C:4B:4A:40:36:E0:4A:B0:91:6F:5D:C9:7A:B0:5F:EF:E3:A9
- Chain
- ZeroSSL RSA DV SSL CA 2 → Sectigo Public Server Authentication Root R46
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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This is today's certificate. Turn on monitoring and we'll watch seneka.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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