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Sites Info

Find out, which technologies such as CMS, programming language, web server and hosting provider a particular website is using.

   Enter url:
   Examples: Berkeley.edu, 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.

Firefox Add-On
Get the Firefox add-on.

Google ChromeGoogle Chrome extension
Get the Google Chrome extension.



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Sites with recent
Technology Changes
Sonsurumindir.com switched from IdenTrust to Let’s Encrypt
Forbookssake.net switched from IdenTrust to Let’s Encrypt
Loftex.com switched from IdenTrust to Let’s Encrypt
Diobabylonian.com switched from Weak ETag to Strong ETag
Maroko-dekor.sk switched from Brotli Compression to Gzip Compression
Mariosergioart.com.br switched from Sectigo to Let’s Encrypt
Motomarket35.ru switched from IdenTrust to Let’s Encrypt
מחשבון-משכנתא.co.il switched from IdenTrust to Let’s Encrypt
Al-jamilah.co.uk switched from Weak ETag to Strong ETag
Cvja.co.za switched from IdenTrust to Let’s Encrypt
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