SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
dz-werbetechnik.de
SSL/TLS Certificate
SSL/TLS Certificate for dz-werbetechnik.de
Expired- Issued by (CA)
- Starfield Technologies, Inc.
- Subject
- www.bw-grafikservice.de
- Valid from
- May 16, 2022
- Valid until
- Jun 15, 2023 (expired 1240 days ago)
- Public key
- RSA 4096-bit
- Serial
- 8F63463FD49506A3
- SHA-256 fingerprint
- E7:EC:68:75:51:CF:D9:04:D4:52:52:FD:B3:55:73:69:89:D9:5B:8D:4A:F4:C6:2B:95:36:1A:B0:05:2B:4C:D4
- Chain
- Starfield Secure Certificate Authority - G2 → Starfield Root Certificate Authority - G2
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by dz-werbetechnik.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch dz-werbetechnik.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, CNAME, TXT 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.