Qual o CMS? is a free Chrome extension designed to help users quickly identify the content management system (CMS), frameworks, and programming languages behind any website. With a single click, it provides an instant analysis, revealing whether a site was built using artificial intelligence tools like Lovable or V0 by Vercel. This tool is particularly useful for web designers, developers, and digital marketers looking to gain insights into competitors or for market research.

The extension stands out for its lightweight design and fast performance, ensuring a smooth user experience without lag. It guarantees full privacy, as all analyses are conducted locally in the browser without collecting any user data. The modern interface includes a dark theme and provides clear results, indicating a confidence level in its analysis and listing the tools and libraries utilized. Regular updates enhance its capabilities, particularly in detecting AI-generated websites.