Apache has been the most popular web server on the Internet since April 1996.
The DOCTYPE is a required preamble for HTML5 websites.
UTF-8 (8-bit UCS/Unicode Transformation Format) is a variable-length character encoding for Unicode. It is the preferred encoding for web pages.
Last updated 22nd December.
We track technology usage on over 250 million websites showing which sites use shopping carts, analytics, hosting and many more.
Sign up for Free
Download the BuiltWith Google Chrome Extension and get website lookups directly in your browser.
Download the BuiltWith Safari Extension and get website lookups directly in your browser.
Download the BuiltWith Firefox Addon and get website lookups directly in your browser.
The Builtwith Bookmarklet, to install, drag this link to your browser toolbar: BuiltWith Bookmarklet
Can't find the technology? Send us a suggestion, we'll add it to our database.