W3Techs Website Technology Information

The W3Techs extension shows with one mouse click which web technologies the current site is using. The technologies shown include content management systems, server-side and client-side programming languages, JavaScript libraries, web servers, operating systems, web hosting providers, DNS server providers, email server providers, content delivery networks, SSL certificate providers, traffic analysis tools, advertising networks and more. Additionally, you get background information and warnings on potential quality problems of the site. Version 1.3 ensures compatibility with future Chrome versions.

Screenshots from Chrome Web Store

Screenshots from Mozilla Add-ons