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 zur-bahn.com

Valid
Issued by (CA)
Let's Encrypt
Subject
zur-bahn.com
Valid from
May 27, 2026
Valid until
Aug 25, 2026 (34 days remaining)
Public key
RSA 2048-bit
Serial
0693ADDDA15D877E190CD6350D591AE26F2C
SHA-256 fingerprint
55:47:17:F7:6A:09:35:96:A5:A8:18:95:88:B5:9C:F1:34:31:8E:D6:1F:28:CB:86:3C:E9:51:42:75:22:6D:AB
Chain
R13 → ISRG Root X1
Subject Alternative Names (3)
webmail.zur-bahn.com, www.zur-bahn.com, zur-bahn.com

Certificate Authority Authorization (CAA)

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

Never get surprised by zur-bahn.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch zur-bahn.com 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.