Content-Security-Policy

Content Security and Delivery for High Traffic Sites High traffic sites face two big challenges: security and fast delivery. A well implemented Content Security Policy (CSP) reduces risks from cross-site scripting and data leaks, while a strong delivery setup keeps pages responsive under load. The goal is to make the policy strict by default and only relax it where necessary, then monitor for any blocked resources. Start with a clear CSP. Use nonce or hash based scripts, limit sources, and report violations to a central service. Example: Content-Security-Policy: default-src ‘self’; script-src ‘self’ https://cdn.example.com; style-src ‘self’ https://fonts.googleapis.com; img-src ‘self’ data:; connect-src ‘self’; font-src ‘self’ https://fonts.gstatic.com; report-uri https://your-report-endpoint/csp. This is a guideline; adjust to your domains and use a reporting endpoint to learn which sources are blocked. ...

Browser Security: Protecting Web Applications Web apps run inside users’ browsers, which act as the first line of defense and, at times, the last stop for attackers. A small misconfiguration can expose data or allow unwanted actions. Good browser security starts with simple, practical steps and grows with ongoing attention. Think in layers: protect data in transit, guard data stored in the browser, and control what content the page can load and execute. Each layer reduces risk and helps users stay safe. ...