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 i-dom24.pl

Expired
Issued by (CA)
DigiCert Inc
Subject
i-dom24.pl
Valid from
Mar 11, 2025
Valid until
Mar 10, 2026 (expired 152 days ago)
Public key
RSA 2048-bit
Serial
071982EDAD15AFAF4586A891D9B6F82C
SHA-256 fingerprint
C6:CB:40:66:FC:58:02:A8:B2:60:B0:DB:D9:53:B3:6D:0B:25:76:F0:AE:0F:E1:EA:20:5B:99:21:E1:D8:8D:10
Chain
RapidSSL TLS RSA CA G1 → DigiCert Global Root G2
Subject Alternative Names (2)
i-dom24.pl, www.i-dom24.pl

Certificate Authority Authorization (CAA)

The serving CA (DigiCert Inc) is not among the authorities this domain's CAA records authorize (certum.pl, letsencrypt.org). This can indicate a misconfiguration or an unexpected issuance.

Never get surprised by i-dom24.pl's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch i-dom24.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.