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 magie-cisel.cz

Valid
Issued by (CA)
Let's Encrypt
Subject
magie-cisel.cz
Valid from
Jun 10, 2026
Valid until
Sep 8, 2026 (34 days remaining)
Public key
RSA 2048-bit
Serial
052E3B16F8493ED63600AAA7D8C79DFD2182
SHA-256 fingerprint
92:DA:43:E1:EA:08:30:A3:16:17:1F:7E:F9:6F:69:0B:79:1B:2B:3B:8D:91:B1:FC:A2:53:13:BE:55:5F:BB:43
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (1)
magie-cisel.cz

Certificate Authority Authorization (CAA)

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

Never get surprised by magie-cisel.cz's certificate expiring

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