# HSTS <IfModule mod_headers.c> Header set Strict-Transport-Security "max-age=31536000; includeSubDomains; preload" env=HTTPS </IfModule> # X-XSS-Protection <IfModule mod_headers.c> Header set X-XSS-Protection "1; mode=block" </IfModule> # X-Frame-Options <IfModule mod_headers.c> Header always append X-Frame-Options SAMEORIGIN </IfModule> # X-Content-Type nosniff <IfModule mod_headers.c> Header set X-Content-Type-Options nosniff </IfModule>