Sites Info
Find out, which technologies such as CMS, programming language, web server and hosting provider a particular website is using.
Enter url:
Examples:
Opensource.org,
Hrw.org,
Britannica.com
Site Info API
Get programmatic access to this information via our Site Info API.
Bookmarklet
Our bookmarklet provides a convenient way to see the technologies of the sites you visit.
--> W3Techs
<-- Don't click here. Drag it to your browser's toolbar or add it to your favorites bar/bookmarks by clicking the right mouse button. Then click on it whenever you visit a site whose technologies you want to know.
If the concept of bookmarklets is new to you, you may read more about it on Wikipedia.
Browser Extensions
Our browser extensions work similar to the bookmarklet, but they use browser capabilities to show the current site's web technologies, so that your site visits are not interrupted.
Get the Firefox add-on.
 
Get the Google Chrome extension.
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