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Sites Info

Find out, which technologies a particular website is using.

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


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
Get the Firefox add-on.

Google Chrome extensionGoogle Chrome extension
Get the Google Chrome extension.

Sites with recent
Technology Changes
Masielbebe.co.uk switched from Symantec Group to Comodo
Uproxy.org switched from Nginx to Google Servers
Best-concealed-carry.com switched from Nginx to Microsoft-IIS
Al-games.com switched from Nginx to Apache
User123.com switched from Windows to Unix and from Non-HttpOnly Cookies to HttpOnly Cookies and from Session Cookies to Persistent Cookies and from XHTML to HTML
Ecoaldea.com switched from External CSS to Embedded CSS
Meranom.com switched from Thawte to GeoTrust
Opportunitymart.com switched from Embedded CSS to Inline CSS and from ISO-8859-1 to UTF-8 and from Embedded CSS to External CSS
Beautifulhairstyles.net switched from XHTML Strict to XHTML Transitional
Viewtrakr-dating.com switched from XHTML to HTML
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