Library Sniffer

Generally speaking, browser sniffing refers to techniques that help identify the browser users are using for the purpose of adapting the content. Library Sniffer is an extension for Chrome designed to help you sniff the web framework and javascript libraries that are currently running on the browsing website.

Considering this is an extension, the installation entails grabbing it from the Chrome store and then adding it to your browser. You should be able to view it in the upper right corner and you can disable it at any time. It is important to note that the extension becomes active as soon as you enter a website that employs various web frameworks and javascript libraries.

The idea behind the tool is to help you identify the backend technology behind a website. To put it simply, thanks to the extension, you can identify javascript libraries such as Jquery, ExtJS or Angular. At the same time, you can sniff various web frameworks such as WordPress, phpBB, Drupal, codeigniter or MediaWiki. The extension can also identify web servers used, be it Apache, PHP, nginx or IIS as well as web APIs like Google Analytics or Blogger.

All of these technologies are displayed in a list and, if you are curious about their roles, then all you need to do is click on them. The results provide direct links to the main page or website where they can be found and you can learn more about each and every one.

In the eventuality that you would like to learn more about the websites and pages you are visiting in terms of what is behind, server technologies, frameworks, third-party services and others, then perhaps you can consider giving Library Sniffer a try.