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 tomeklendo.com

Self-signed
Issued by (CA)
Stacja-NET
Subject
monitoring.stacja-net.pl
Valid from
Jul 11, 2026
Valid until
Jul 11, 2027 (269 days remaining)
Public key
RSA 2048-bit
Serial
79FB3CBA9457BA7E7E280CC23CA1EB72A3EB2FA7
SHA-256 fingerprint
06:B8:B4:0F:F1:6D:2D:8D:1D:1F:7D:82:D7:17:AB:73:AC:58:22:7C:3B:32:E7:F7:E1:F1:2E:2D:C8:F0:0F:DE
Chain
monitoring.stacja-net.pl

Certificate Authority Authorization (CAA)

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

This certificate has been served since Oct 8, 2026.

Never get surprised by tomeklendo.com's certificate expiring

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