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 u-sander.de

Valid
Issued by (CA)
Sectigo Limited
Subject
u-sander.de
Valid from
Oct 27, 2025
Valid until
Nov 17, 2026 (60 days remaining)
Public key
RSA 2048-bit
Serial
995EBA0E63E07D3C5B4AE3A0962BC066
SHA-256 fingerprint
99:F9:50:9C:AB:47:EB:84:31:87:C1:9A:D5:D1:94:EC:D6:15:88:81:96:C4:80:CF:55:36:DF:4B:F7:DD:CE:20
Chain
Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Subject Alternative Names (2)
u-sander.de, www.u-sander.de

Certificate Authority Authorization (CAA)

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

This certificate has been served since Sep 8, 2026.

Never get surprised by u-sander.de's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch u-sander.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.