SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
wegweiser-demenz.de
SSL/TLS Certificate
SSL/TLS Certificate for wegweiser-demenz.de
Valid- Issued by (CA)
- Deutsche Telekom Security GmbH
- Subject
- wegweiser-demenz.de
- Valid from
- Nov 11, 2025
- Valid until
- Nov 15, 2026 (93 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 0DD95B728370AF4EAA2013B654FF688D
- SHA-256 fingerprint
- C8:A9:45:5B:94:A6:4B:6C:C6:31:74:24:D1:3A:33:A1:79:BA:C0:D0:2A:BC:A2:3D:DE:64:11:27:F7:51:6F:F2
- Chain
- Telekom Security ServerID OV Class 2 CA → T-TeleSec GlobalRoot Class 2
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by wegweiser-demenz.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch wegweiser-demenz.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.