Web Technology Notifier is a free Chrome add-on developed by Cyril Wack. As the name suggests, it allows users to easily identify the web technology being used by the current page. Whether it's a Ruby application, a PHP-based website, or a Python-powered CMS, this add-on displays the technology through a simple icon.

With Web Technology Notifier, users can quickly determine the technology behind a website without the need for any complex tools or manual investigation. It eliminates the guesswork and provides instant information about the server-side technology being used.

Recent updates have brought some improvements to the add-on. Permissions on HTTPS have been removed to avoid any troubles, especially with bank websites. Additionally, the add-on now performs a HEAD request instead of a GET request, eliminating the need to load pages twice. Lastly, the unnecessary "tabs" permission has been removed.

Overall, Web Technology Notifier is a handy tool for web developers, designers, and anyone curious about the technologies used on the websites they visit. It simplifies the process of identifying web technologies and enhances the browsing experience.