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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
Purplemartin.org switched from Cookies expiring in years to Cookies expiring in months
Well.org switched from Apache to Nginx and from Symantec Group to GlobalSign
Cqtnren.net switched from JPEG to GIF
Credentrust.com switched from External CSS to Inline CSS and from HTML to XHTML
Ebrcko.net switched from Cookies expiring in years to Cookies expiring in months
Esasimujeres.com switched from JPEG to GIF and from UTF-8 to Shift JIS and from HTML to XHTML and from PNG to GIF
Amouretmariage.com switched from ISO-8859-1 to UTF-8
Thegadgetexperience.com switched from DigiCert to Verizon
Skincareadvisors.org switched from Google Hosted Libraries to jQuery CDN and from Unix to Windows and from Cookies expiring in hours to Cookies expiring in years
Rnnlawmd.com switched from HTML to XHTML
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