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 rohrer-ag.ch

Valid
Issued by (CA)
Let's Encrypt
Subject
rohrer-ag.ch
Valid from
Jul 17, 2026
Valid until
Oct 15, 2026 (73 days remaining)
Public key
RSA 2048-bit
Serial
05AFE61ECF2588565511179B20AB3E2D1442
SHA-256 fingerprint
77:FF:3E:6F:90:17:48:1D:39:FC:04:1B:3A:45:C0:DF:7E:1E:8A:C0:D1:75:F1:C7:65:91:D5:75:89:3E:59:A6
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (1)
rohrer-ag.ch

Certificate Authority Authorization (CAA)

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

Never get surprised by rohrer-ag.ch's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch rohrer-ag.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.