SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
frankfurt-school.com
SSL/TLS Certificate
SSL/TLS Certificate for frankfurt-school.com
Self-signed- Issued by (CA)
- earth
- Subject
- earth
- Valid from
- Sep 20, 2024
- Valid until
- Sep 3, 2035 (3241 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 359167D0C8959C2E03A738E609029C431CE0AE36
- SHA-256 fingerprint
- 59:2E:11:A3:C6:60:47:13:CC:B6:EF:E0:02:43:94:40:27:4F:D0:71:38:5D:11:C6:89:12:97:D2:AC:F3:A8:DE
- Chain
- earth
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by frankfurt-school.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch frankfurt-school.com 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.
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