CSP Level 3

CSP Level 3 (Content Security Policy Level 3) is a set of web security rules that helps website owners control what external resources—like scripts, images, or stylesheets—can be loaded and executed on their sites. It acts as a safety gate, preventing malicious content from running and protecting visitors from attacks like cross-site scripting (XSS). Level 3 introduces enhancements such as better control over resource loading, sandboxing features, and improved reporting. Overall, it strengthens a website’s defense mechanisms, ensuring safer browsing experiences for users while giving site owners more precise security tools.