SITEDOCTOR
Blog · Website Health, SEO & Security

Find out what's wrong with your site before your visitors do

Practical guides on security headers, SSL, speed, SEO and broken links — the checks that matter, and the scanner that runs them all.

2026-10-26

Website security headers explained: the 6 headers that actually matter

What HSTS, CSP, X-Frame-Options, nosniff, Referrer-Policy and Permissions-Policy actually block, the recommended values, how to check yours with one curl command, and the misconfigurations that make them useless.

SecurityHTTP Headers

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