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 uw.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- *.uw.de
- Valid from
- Jun 15, 2026
- Valid until
- Dec 30, 2026 (123 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 31F52179489F90B1C6CFD0E3AD8864EE
- SHA-256 fingerprint
- 5D:40:A4:81:C1:A0:4F:E7:4C:3D:1B:A4:F1:38:00:EF:E7:FB:26:75:8A:D8:69:5A:F0:2D:23:20:ED:AF:0A:A0
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
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 Aug 13, 2026.
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This is today's certificate. Turn on monitoring and we'll watch uw.de continuously, notifying you the moment anything moves across all three signals:
Uptime
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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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