What we look at
Clarity: whether there is one clear headline that says what you offer, a sensible page title and a navigation that does not overwhelm. Friction: whether the action you want is obvious, early and labelled with what happens next, and whether forms ask for too much.
Trust: visible proof, a way to reach a person, a privacy notice and HTTPS. Speed: third-party scripts, render-blocking code and images without dimensions. Mobile: the viewport set-up, zoom and tap-to-call.
Limits of an automated teardown
The check reads the HTML your server sends. Content added later by JavaScript is invisible to it, and it cannot know how your real visitors behave. Treat the result as a list of likely problems to confirm, ideally with five real users and your analytics.