[Feature Request] Add a scan for URLs with security checker website

[KathrynN]

Background: I want to run a chunk of URLs through browsertrix while I sleep but don't want to get hacked. I also don't particularly want to check each and every URL with a tool manually.

Suggestion:

Add a command line flag to pre-load the url into e.g. https://sitecheck.sucuri.net/ and only proceed if the site is found free of vulnerabilities, otherwise display a warning I'm not sure if sitecheck.sucuri.net or its companions have a cli - if so, use that instead 😁 Would also be good to have an optional level of "allowed" vulnerabilities - e.g. still scan but output warning if suspected vulnerability level is low, but for critical bugs don't proceed.