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Sites Info

Find out, which technologies a particular website is using.

   Enter url:
   Examples: Berkeley.edu, 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
Get the Firefox add-on.

Google Chrome extensionGoogle Chrome extension
Get the Google Chrome extension.

Sites with recent
Technology Changes
Fmplus.cl switched from HostGator to Endurance and from Nginx to Apache
Mercotradings.com switched from External CSS and Inline CSS to Embedded CSS and from HTML to XHTML
A1agregator.ru switched from SVG to PNG
Pansarishop.com switched from HTML to XHTML
Freebookmarksmo.com switched from Unix to Windows and from United Internet and ParkingCrew to Rightside Group and from Apache to Microsoft-IIS and from HttpOnly Cookies to Non-HttpOnly Cookies
Circle.fukuoka.jp switched from Apache to Nginx
Freebookmarksmo.com switched from Nginx to Microsoft-IIS
Psicosol.com switched from Comodo to IdenTrust and from Cookies expiring in months to Cookies expiring in hours and from Session Cookies to Persistent Cookies
Mticc.com switched from External CSS and Inline CSS to Embedded CSS and from HTML5 to HTML Transitional
Sefam-medical.com switched from Contao to WordPress and from Session Cookies to Persistent Cookies and from HttpOnly Cookies to Non-HttpOnly Cookies
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