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 ampf.de

Expired
Issued by (CA)
DigiCert Inc
Subject
rettungssanitaeter.hamburg
Valid from
Jan 13, 2022
Valid until
Jan 14, 2023 (expired 1286 days ago)
Public key
RSA 2048-bit
Serial
0EF30CB072CB642D28B9A51A0B370719
SHA-256 fingerprint
DC:80:43:50:A4:8B:8A:D6:A7:48:B0:6C:37:9F:3A:67:C0:57:18:32:71:32:6C:46:63:D2:4C:93:FA:B4:25:DD
Chain
Subject Alternative Names (2)
rettungssanitaeter.hamburg, www.rettungssanitaeter.hamburg

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

Never get surprised by ampf.de's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch ampf.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.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.