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 ath.pl

Valid
Issued by (CA)
Sectigo Limited
Subject
*.ath.pl
Valid from
May 11, 2026
Valid until
Nov 25, 2026 (124 days remaining)
Public key
EC 384-bit
Serial
7FE40D23129342E91E465439661C9A99
SHA-256 fingerprint
AA:E8:4B:45:E3:89:98:B2:72:1B:97:43:E6:4C:F4:F9:A6:FE:F2:11:BA:5D:4D:8B:C9:80:A5:DF:93:62:DF:05
Chain
Sectigo Public Server Authentication CA DV E36 → Sectigo Public Server Authentication Root E46 → USERTrust ECC Certification Authority
Subject Alternative Names (2)
*.ath.pl, ath.pl

Certificate Authority Authorization (CAA)

The serving CA (Sectigo Limited) is not among the authorities this domain's CAA records authorize (comodoca.com, digicert.com, identrust.com, letsencrypt.org, pki.goog). This can indicate a misconfiguration or an unexpected issuance.

Never get surprised by ath.pl's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch ath.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.