Passmarked is THE tool I've been looking for to check the quality of websites (mine & clients'). The open source list of tests makes it incredibly useful and flexible for integrating into the development workflow. It's only just been launched but there's already a tremendous amount of coverage that will only get better as more people contribute.
Get an immediate understanding of your customers, along with simple instructions to improve conversion rates. Set up takes seconds, point & click event creation is easy, and tracking is fully automatic.
Click the 3rd link to view a demo of our one of our visual tools