BEST SECURITY HEADERS FOR WEBSITE
The best security headers every website should implement are: Content-Security-Policy, Strict-Transport-Security, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, and Cross-Origin-Opener-Policy. Check if your website has all of them by scanning for free at scanmyvibe.co/scan.
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The 7 Essential Security Headers
These headers should be present on every website in 2026. Each one mitigates a specific class of attacks:
- +Content-Security-Policy — Prevents XSS by allowlisting content sources. Start with: default-src 'self'; script-src 'self'
- +Strict-Transport-Security — Forces HTTPS. Recommended: max-age=31536000; includeSubDomains; preload
- +X-Frame-Options: DENY — Prevents clickjacking by blocking iframe embedding of your site
- +X-Content-Type-Options: nosniff — Prevents browsers from MIME-sniffing responses away from declared Content-Type
- +Referrer-Policy: strict-origin-when-cross-origin — Controls referrer information leaked to other origins
- +Permissions-Policy — Restricts browser APIs like camera, microphone, geolocation. Example: camera=(), microphone=()
- +Cross-Origin-Opener-Policy: same-origin — Isolates your window from cross-origin popup interactions
Headers That Are No Longer Recommended
Some headers are outdated or counterproductive in 2026:
- +X-XSS-Protection — Deprecated by modern browsers. Can introduce vulnerabilities. Set to 0 or omit entirely.
- +X-Powered-By — Should be removed, not added. It leaks technology information.
- +Public-Key-Pins (HPKP) — Deprecated. Was too dangerous to use correctly.
Check Your Headers Now
ScanMyVibe checks for all security headers and evaluates their values for correctness. A header that is present but misconfigured (like CSP with unsafe-inline) can be worse than no header at all because it creates a false sense of security. Run a free scan at scanmyvibe.co/scan to see exactly which headers need attention.