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 sepd.org

Self-signed
Issued by (CA)
Odin
Subject
Plesk
Valid from
Apr 13, 2016
Valid until
Apr 13, 2017 (expired 3456 days ago)
Public key
RSA 2048-bit
Serial
570E1009
SHA-256 fingerprint
31:50:C4:66:F7:07:BA:79:3F:98:29:92:28:B4:3C:21:8F:F6:18:BB:F6:CA:A8:B8:07:56:77:D8:5A:BA:CB:59
Chain
Plesk

Certificate Authority Authorization (CAA)

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

Never get surprised by sepd.org's certificate expiring

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