Droopescan

Droopescan identifies the CMS a site runs, then enumerates its version, installed modules or plugins, and themes — with the strongest support for Drupal — so you know exactly what is deployed.

A detected version and component inventory for the CMS, highlighting the versions that correspond to known security issues.

Knowing the precise version of a Drupal core or module is the difference between guessing and knowing whether you are exposed to a specific published exploit.