The X-XSS-Protection header is not defined.
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⏳ Last active: 13 Apr 2026 at 22:58
📅 Created: 14 Feb 2021 at 23:24
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If after you have checked your website you see this:
The X-XSS-Protection header is not defined.
Go to httpd.conf and add to the bottom
LoadModule headers_module modules/mod_headers.so
Header set X-XSS-Protection "1; mode=block"
Be shure that Mod_headers is enabled
Restart apache