SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ams-gastro.de
SSL/TLS Certificate
SSL/TLS Certificate for ams-gastro.de
Expired- Issued by (CA)
- Starfield Technologies, Inc.
- Subject
- www.diekmann-restaurant.de
- Valid from
- Dec 9, 2020
- Valid until
- Dec 9, 2021 (expired 1798 days ago)
- Public key
- RSA 4096-bit
- Serial
- 19D6C72025F9082D
- SHA-256 fingerprint
- 09:4E:CB:28:A0:AD:4E:F2:C8:53:5F:9D:1D:F9:40:EB:09:BF:7C:78:A8:B3:9A:A8:F8:54:1A:47:92:7B:F7:75
- 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 ams-gastro.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ams-gastro.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.