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 umti-leder.com

Self-signed
Issued by (CA)
Default SSL Certificate
Subject
Default SSL Certificate
Valid from
Nov 19, 2018
Valid until
Nov 18, 2021 (expired 1821 days ago)
Public key
RSA 4096-bit
Serial
5BF30B57000DB9E3
SHA-256 fingerprint
9D:D2:86:5F:57:C7:61:40:76:49:CF:BF:07:FB:F5:9B:EF:FB:89:7D:71:D9:F9:D2:14:B4:90:93:A6:37:00:42
Chain
Default SSL Certificate

Certificate Authority Authorization (CAA)

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

Never get surprised by umti-leder.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch umti-leder.com 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.