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 ernst-partner.net

Valid
Issued by (CA)
Let's Encrypt
Subject
ernst-partner.net
Valid from
Aug 23, 2026
Valid until
Nov 21, 2026 (32 days remaining)
Public key
RSA 4096-bit
Serial
05EB6DAFC4F62F8638CA60E1FF9E8E850DCC
SHA-256 fingerprint
EB:5F:FA:09:68:48:4A:8A:53:B3:AB:EC:07:DC:61:34:74:E3:8B:CD:1B:46:F8:EC:78:D4:A4:FA:B8:0F:EE:76
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (4)
ernst-partner.net, www.ernst-partner.net, www.zahnarzt-ernst.de, zahnarzt-ernst.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 Sep 25, 2026.

Never get surprised by ernst-partner.net's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch ernst-partner.net 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.