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Find out, which technologies a particular website is using.

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   Examples: Dilbert.com, Nasdaq.com, Britannica.com

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 the browsers capabilities to open a new tab for showing the current sites web technologie, so that your site visits are not interrupted.

Firefox Add-On
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Google Chrome extensionGoogle Chrome extension
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Sites with recent
Technology Changes
Keycouponcodes.com switched from XHTML to HTML
Tuckerfox.com.au switched from XHTML to HTML
Xiaohua51.com switched from Apache to Nginx and from GB2312 to GBK
Houndstoothgourmet.com switched from XHTML to HTML
Edka.ru switched from Embedded CSS to External CSS
Rupas.net switched from LiveInternet and Openstat to Google Analytics and from JQuery to Modernizr
Selia2-board.com switched from XHTML to HTML
4gppp.com switched from UTF-8 to GB2312
Etq-amsterdam.com switched from XHTML to HTML and from Inline CSS to Embedded CSS
Livetameion.com switched from Modernizr and Script.aculo.us and Prototype to Bootstrap
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