SSL Labs
FreeUntestedOur check runs without a key, so we couldn't test this one. It doesn't mean it's down.
Runs a deep SSL/TLS configuration test on any public HTTPS server and returns an A+ to F grade.
Example request
curl -s 'https://api.ssllabs.com/api/v3/info'
Free tier, in plain English
Free with no key, but usage is throttled dynamically and a new scan can only be started once per cool-off period.