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 ocop.olsztyn.pl

Self-signed
Issued by (CA)
KV GmbH
Subject
parking24.kv.de
Valid from
Oct 22, 2024
Valid until
Oct 22, 2025 (expired 382 days ago)
Public key
RSA 2048-bit
Serial
2121B4E7F18A40B8829A5BCAC93FF1A43ED3238E
SHA-256 fingerprint
77:27:A8:F5:08:30:27:8F:94:52:49:D2:4C:78:48:C5:0C:56:18:48:77:6E:84:24:EB:FB:32:6C:B1:D6:FC:2A
Chain
parking24.kv.de

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 Aug 27, 2026.

Never get surprised by ocop.olsztyn.pl's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch ocop.olsztyn.pl continuously, notifying you the moment anything moves across all three signals:

Certificate monitor showing the issuer, expiry date, chain status, fingerprint, covered names, and a history of a rotation and an expiry warning

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, CNAME, TXT 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.