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 waldorfschule-oldenburg.de

Valid
Issued by (CA)
Let's Encrypt
Subject
fws-oldenburg.de
Valid from
Jun 15, 2026
Valid until
Sep 13, 2026 (51 days remaining)
Public key
EC 256-bit
Serial
06E3608347FFF470EEFB6D5E767DF993CD50
SHA-256 fingerprint
AC:F4:3B:B4:53:3E:DE:2A:2E:62:57:98:E1:E0:5F:51:50:C4:89:F6:36:3C:56:A8:5C:A6:F8:DB:05:F6:01:FA
Chain
YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (6)
fws-ol.de, fws-oldenburg.de, waldorfschule-oldenburg.de, www.fws-ol.de, www.fws-oldenburg.de, www.waldorfschule-oldenburg.de

Certificate Authority Authorization (CAA)

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

Never get surprised by waldorfschule-oldenburg.de's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch waldorfschule-oldenburg.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.