Another gem from Paul Irish. This site answers the question “How available are the web platform’s features?”

Powered by data from caniuse.com and StatCounter, this page indicates the percentage of users who have a browser that natively supports various web platform features. Obviously, this doesn’t consider polyfill-ability or other fallback scenarios.

Caniuse data updated September 22, 2016. StatCounter data (global) from August 2016.

What I really like about this site, is that it lists the DOM APIs compatibility.