Test Everything! - Test your website with over 100 tools
While some tests like the "Crapola Web Translator" aren't very useful, Test Everything! lets you run over 100 tests in one fell swoop. Our favorite tests (aside from standard HTML/CSS validation) include "Server Info" which displays info like your webserver's IP address and OS, "Website Speed Test" which shows how fast your specified URLs load, and the "Test your web design in different browsers" test which, well...you know.