"check what data-protecting measures a site has taken to help you exercise control over your privacy" (ib., 2019-10-11) Cf. https://github.com/andersju/webbkoll
"Memorable site for testing clients against bad SSL configs."
Published May 2019
"Browserscope is a community-driven project for profiling web browsers. The goals are to foster innovation by tracking browser functionality and to be a resource for web developers."
Compatibility tables for support of HTML5, CSS3, SVG and more in desktop and mobile browsers