Using the view-source:https://www.facebook.com URI scheme allows users to access the raw HTML of Facebook's landing page, revealing the site's complex,minified, and JavaScript-heavy architecture. This method, along with browser shortcuts like Ctrl+U , provides insights for SEO analysis, security auditing, and studying React-based web development, while showcasing how large platforms obfuscate code for performance. To understand the limitations of viewing client-side code versus server-side rendering, read the full analysis at Stack Overflow .