SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
u-daten.de
SSL/TLS Certificate
SSL/TLS Certificate for u-daten.de
Valid- Issued by (CA)
- ZeroSSL GmbH
- Subject
- u-daten.de
- Valid from
- Jul 26, 2026
- Valid until
- Oct 24, 2026 (88 days remaining)
- Public key
- EC 256-bit
- Serial
- F8B36C0DD457FA8652F4221C4C463B08
- SHA-256 fingerprint
- 5C:A4:F8:0A:E2:16:8C:F9:4A:50:EA:7D:F8:56:17:05:90:E0:97:6F:17:44:53:C3:70:7F:23:D1:E9:53:FE:E0
- Chain
- ZeroSSL ECC DV SSL CA 2 → Sectigo Public Server Authentication Root E46 → USERTrust ECC Certification Authority
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by u-daten.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch u-daten.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.
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