Security Headers

Key Security Headers and Their Purpose:

• Content-Security-Policy (CSP):

  This header helps prevent Cross-Site Scripting (XSS) attacks by controlling which resources (scripts, stylesheets, images, etc.) the browser is allowed to load and execute. It specifies trusted sources for content, blocking anything from unauthorized origins.
• X-Frame-Options:

  This header protects against clickjacking attacks by preventing your website content from being embedded within a frame or iframe on another site. You can specify whether your site can be framed, or if it can only be framed by pages on the same origin.
• Strict-Transport-Security (HSTS):

  This header enforces the use of HTTPS for all future connections to your website, even if a user attempts to access it via HTTP. This ensures encrypted communication and protects against man-in-the-middle attacks.
• X-Content-Type-Options:

  This header prevents browsers from “sniffing” the content type of a file and interpreting it differently than declared. This helps prevent attacks where malicious files are disguised as safe ones.
• Referrer-Policy:

  This header controls how much referrer information is sent when a user navigates from your site to another. It can help protect user privacy and prevent the leakage of sensitive URL structures.
• Permissions-Policy (formerly Feature-Policy):

  This header allows you to control which browser features and APIs your website can use, such as geolocation, camera access, or microphone access. This helps prevent malicious scripts from exploiting these features without user consent.