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HTTP header reference
X-XSS-Protection

← All headersResponse header

What is an X-XSS-Protection header?

A now-deprecated header that used to enable a browser's built-in cross-site-scripting filter.

Other Response headers

Access-Control-Allow-Origin Access-Control-Allow-Credentials Access-Control-Expose-Headers Access-Control-Max-Age Access-Control-Allow-Methods Access-Control-Allow-Headers Accept-Patch Accept-Ranges Age Allow Alt-Svc Content-Disposition Content-Language Content-Location Content-Range ETag Expires Last-Modified Link Location Proxy-Authenticate Retry-After Server Set-Cookie Strict-Transport-Security Vary WWW-Authenticate X-Frame-Options Content-Security-Policy Permissions-Policy X-Content-Type-Options X-Powered-By X-UA-Compatible Refresh

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Uptime monitoring that tells you the moment something breaks.

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