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 buehne-landshut.com

Valid
Issued by (CA)
Let's Encrypt
Subject
xn--bhne-landshut-wob.de
Valid from
Sep 22, 2026
Valid until
Dec 21, 2026 (59 days remaining)
Public key
RSA 2048-bit
Serial
05B8A255631F7648E390F7C744BDC62D3775
SHA-256 fingerprint
AB:67:6B:67:6B:8B:70:D9:D7:D4:95:35:6D:2C:11:2D:09:2F:15:04:6A:62:00:BE:F2:74:06:3A:86:B2:74:13
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (10)
admin.buehne-landshut.com, admin.xn--bhne-landshut-wob.de, buehne-landshut.com, mail.buehne-landshut.com, mail.xn--bhne-landshut-wob.de, webmail.buehne-landshut.com, webmail.xn--bhne-landshut-wob.de, www.buehne-landshut.com, www.xn--bhne-landshut-wob.de, xn--bhne-landshut-wob.de

Certificate Authority Authorization (CAA)

The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org).

Never get surprised by buehne-landshut.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch buehne-landshut.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.