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 un-exp.com

Expired
Issued by (CA)
DigiCert Inc
Subject
www.stapo.biz
Valid from
Jun 12, 2018
Valid until
Jun 12, 2019 (expired 2651 days ago)
Public key
RSA 2048-bit
Serial
05EDB3255580A85CB09F8C5E901A256C
SHA-256 fingerprint
B0:57:49:7D:13:33:50:58:8D:CE:33:85:E7:6C:84:62:33:C6:26:E5:49:94:A4:0E:1B:31:87:F3:A1:0E:D3:CB
Chain
Subject Alternative Names (2)
stapo.biz, www.stapo.biz

Certificate Authority Authorization (CAA)

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

Never get surprised by un-exp.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch un-exp.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, 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.