X-XSS-Protection Header Missing: What to Do in 2026
The X-XSS-Protection header is deprecated and ignored by every modern browser, so the real fix is…
Send a valid X-Frame-Options header (use SAMEORIGIN, or DENY if your pages are never framed) and…
Add a Strict-Transport-Security response header to force every browser onto HTTPS, starting with a short max-age,…
The Content-Security-Policy (CSP) HTTP response header tells browsers which sources of scripts, styles, and other content…
Add a single response header, X-Content-Type-Options: nosniff, so browsers trust your declared MIME types instead of…
Add a Referrer-Policy: strict-origin-when-cross-origin response header so your site controls how much URL data browsers leak…
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Technical SEO consulting and GEO strategy for teams who need real implementation support. 20 years of enterprise experience across major media, technology, recruitment, and ecommerce brands, and a major enterprise brand. Case studies, research, and resources for search and AI visibility.