Overview
Security headers are a subset of HTTP headers that provide an extra layer of security by restricting the actions a browser can take when rendering a page. They are easy to implement and highly effective at preventing common web attacks.
Key Security Headers
- Content-Security-Policy (CSP)
- Strict-Transport-Security (HSTS)
- X-Frame-Options
- X-Content-Type-Options
- Referrer-Policy
Implementation
These headers are typically configured on the web server (e.g., Nginx, Apache) or within the application code.