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.
Betatesters.io is a platform where developers and beta testers come together to build better apps. Mobile developers will be able to submit their beta apps to gather feedback to iterate quicker, ship better apps faster, and cultivate a dedicated user base early on.
BetaTesta is a platform that helps you as makers get the valuable feedback you need as you develop your products.
We have just released the new version of our crowd testing service. Our goal is to make beta testing easy, accessible and qualitative. We have worked very hard with this update and are proud of the results. All feedback is welcome!