Sites Info

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

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 Chrome] [Google Chrome extension]
Get the Google Chrome extension.

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Sites with recent Technology Changes
Rangejavid.com switched from Lets Encrypt to Certum
Parapijos.lt switched from Lets Encrypt to GlobalSign
Yoyo.london switched from GlobalSign to Lets Encrypt
Xpathmedia.com switched from Brotli Compression to Gzip Compression
Kominki.net.pl switched from Brotli Compression to Zstandard Compression
Southernbins.com.au switched from LiteSpeed to Cloudflare Server and from Lets Encrypt to GlobalSign and from Brotli Compression to Zstandard Compression and from QUIC to HTTP/2
Envolettoit.fr switched from Hostinger to Cloudflare and from Lets Encrypt to GlobalSign and from MonsterInsights to Microsoft Clarity and from Brotli Compression to Zstandard Compression and from QUIC to HTTP/2
Seedsoilandmore.com switched from GoDaddy Group to Cloudflare
Drberi.com switched from Hostinger to GoDaddy Group
Imft.org switched from Drupal to WordPress and from Eurofiber Group to SiteGround and from Eurofiber Group to Google and from Gzip Compression to Brotli Compression

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