SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
foehr-arfsten.de
SSL/TLS Certificate
SSL/TLS Certificate for foehr-arfsten.de
Self-signed- Issued by (CA)
- foehr-arfsten.de.df-449041.dummy
- Subject
- foehr-arfsten.de.df-449041.dummy
- Valid from
- Jul 14, 2025
- Valid until
- Jul 14, 2026 (expired 21 days ago)
- Public key
- RSA 2048-bit
- Serial
- 82391283
- SHA-256 fingerprint
- AC:42:AD:73:E5:85:00:E9:D0:23:3E:EB:F9:13:F3:75:57:5D:C0:8C:33:26:3C:31:D7:C3:C7:68:B5:96:7F:6D
- Chain
- foehr-arfsten.de.df-449041.dummy
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by foehr-arfsten.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch foehr-arfsten.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.