Every image uploaded to Facebook is assigned a unique, direct URL and stored on a Content Delivery Network (CDN). Even if a profile is locked, the profile picture itself must remain public so it can render as a thumbnail across the platform. Profile viewer tools use scripts to locate this raw CDN link, allowing users to view or download the full-resolution image outside of the standard Facebook interface. 2. Scraping Public Graph Data
Every image uploaded to Facebook is assigned a unique, direct URL and stored on a Content Delivery Network (CDN). Even if a profile is locked, the profile picture itself must remain public so it can render as a thumbnail across the platform. Profile viewer tools use scripts to locate this raw CDN link, allowing users to view or download the full-resolution image outside of the standard Facebook interface. 2. Scraping Public Graph Data