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 pension-klaus.de

Valid
Issued by (CA)
Let's Encrypt
Subject
pension-klaus.de
Valid from
Jun 19, 2026
Valid until
Sep 17, 2026 (31 days remaining)
Public key
EC 256-bit
Serial
05A43063439613B686546505403470C6E03D
SHA-256 fingerprint
27:7C:99:73:28:61:8E:25:A4:FB:AA:E5:2C:13:F7:79:B6:DE:15:0B:08:7D:78:6B:24:7E:56:25:96:95:2B:28
Chain
YE2 → Root YE → ISRG Root X2
Subject Alternative Names (2)
pension-klaus.de, www.pension-klaus.de

Certificate Authority Authorization (CAA)

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

Never get surprised by pension-klaus.de's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch pension-klaus.de 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.