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 buehrer-pflaesterungen.ch

Expiring soon
Issued by (CA)
Let's Encrypt
Subject
buehrer-pflaesterungen.ch
Valid from
May 20, 2026
Valid until
Aug 18, 2026 (21 days remaining)
Public key
RSA 2048-bit
Serial
0526F7EA52EBECDD30317071E31C3A45A76A
SHA-256 fingerprint
80:F2:49:71:F2:9B:0C:5C:67:6E:68:E7:B0:D7:A1:9E:5E:05:5F:74:44:17:83:BF:48:1E:09:79:6F:9E:01:FF
Chain
R13 → ISRG Root X1
Subject Alternative Names (7)
admin.buehrer-pflaesterungen.ch, autoconfig.buehrer-pflaesterungen.ch, autodiscover.buehrer-pflaesterungen.ch, buehrer-pflaesterungen.ch, mail.buehrer-pflaesterungen.ch, webmail.buehrer-pflaesterungen.ch, www.buehrer-pflaesterungen.ch

Certificate Authority Authorization (CAA)

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

Never get surprised by buehrer-pflaesterungen.ch's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch buehrer-pflaesterungen.ch 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.