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 awo-bad-honnef.de

Valid
Issued by (CA)
Sectigo Limited
Subject
*.awo-bad-honnef.de
Valid from
Sep 26, 2025
Valid until
Oct 10, 2026 (78 days remaining)
Public key
RSA 2048-bit
Serial
8D3CD56771F56DA4F20711F13BFAACC2
SHA-256 fingerprint
41:55:AD:74:01:FC:D8:21:6B:A5:D0:A7:C4:DD:EB:1E:A8:94:BE:FF:80:6D:59:89:7B:2F:8C:B7:23:9C:5E:4B
Chain
Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Subject Alternative Names (2)
*.awo-bad-honnef.de, awo-bad-honnef.de

Certificate Authority Authorization (CAA)

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

Never get surprised by awo-bad-honnef.de's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch awo-bad-honnef.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.