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 crapology.app

Valid
Issued by (CA)
Amazon
Subject
crapology.app
Valid from
Nov 5, 2026
Valid until
May 22, 2027 (196 days remaining)
Public key
EC 256-bit
Serial
43ECCFD1903CE439E9D561E60C3E96E2
SHA-256 fingerprint
34:9B:11:3F:56:A1:A8:17:7A:D3:E5:17:D2:B7:95:68:38:CA:EF:15:D9:EC:B6:50:95:49:B3:D2:F1:59:9D:29
Chain
Amazon ECDSA 256 S21 → Amazon Root CA 3 → Starfield Services Root Certificate Authority - G2
Subject Alternative Names (2)
crapology.app, www.crapology.app

Certificate Authority Authorization (CAA)

The serving CA (Amazon) is authorized by this domain's CAA records (amazon.com, amazonaws.com, amazontrust.com, awstrust.com).

Never get surprised by crapology.app's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch crapology.app continuously, notifying you the moment anything moves across all three signals:

Certificate monitor showing the issuer, expiry date, chain status, fingerprint, covered names, and a history of a rotation and an expiry warning

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.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.