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 24hamm.de

Expired
Issued by (CA)
COMODO CA Limited
Subject
*.http-s.de
Valid from
Jul 31, 2018
Valid until
Oct 28, 2020 (expired 2096 days ago)
Public key
RSA 2048-bit
Serial
D7FAD1C7AA8A37C2F02FDF8F7A9D09BA
SHA-256 fingerprint
AA:59:A0:77:A2:56:D7:00:8C:E3:56:F5:07:12:0A:BF:82:0E:CA:A9:07:67:F9:F0:0B:72:59:64:60:7D:86:71
Chain
COMODO RSA Domain Validation Secure Server CA → COMODO RSA Certification Authority → AddTrust External CA Root
Subject Alternative Names (2)
*.http-s.de, http-s.de

Certificate Authority Authorization (CAA)

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

Never get surprised by 24hamm.de's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch 24hamm.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.