BuiltWith : Website Technology Profiler

BuiltWith is a web-based website profiler. It lets you quickly lookup all implemented technologies behind any website (reddit, google, youtube, etc.).

From the website: “BuiltWith’s goal is to help developers, researchers and designers find out what technologies pages are using which may help them to decide what technologies to implement themselves.”

Quick Feature Overview

• Check out popular searches (Digg.com, Youtube.com, Reddit.com, Google.com, etc)
• See most popular BuiltWith requests and find out which websites profiles most often.
• Find out which technologies are more popular and implemented on highest number of websites.
• BuiltWith identifies and shows: widgets (ex. snap preview), analytics tools (Google), frameworks (.NET, Java), publishing platforms (WordPress, Blogger, etc), advertising networks (DoubleClick, AdSense, etc.), standards (XHTML,RSS), hosting software (Apache, Debian, etc.) .
• Embed your BultWith list of technologies on your website.

Check out BuiltWith @ (www.builtwith.com)