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 mp-sped.cz

Valid
Issued by (CA)
Let's Encrypt
Subject
www.mp-sped.cz
Valid from
Sep 22, 2026
Valid until
Dec 21, 2026 (41 days remaining)
Public key
RSA 2048-bit
Serial
06DF416266C9A9F972288C78C7B179B3625C
SHA-256 fingerprint
87:FC:BD:A4:2D:DB:A1:23:B7:29:24:1C:34:46:2B:E4:24:1B:C1:80:15:C0:06:41:3F:83:4F:C5:91:47:B1:87
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (2)
mp-sped.cz, www.mp-sped.cz

Certificate Authority Authorization (CAA)

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

Never get surprised by mp-sped.cz's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch mp-sped.cz 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.