Merhabalar hocam.
Kullandığım ve önerebileceğim htaccess
# Mod_security can interfere with uploading of content such as attachments. If you
# cannot attach files, remove the "#" from the lines below.
#<IfModule mod_security.c>
# SecFilterEngine Off
# SecFilterScanPOST Off
#</IfModule>
ErrorDocument 401 default
ErrorDocument 403 default
ErrorDocument 404 default
ErrorDocument 405 default
ErrorDocument 406 default
ErrorDocument 500 default
ErrorDocument 501 default
ErrorDocument 503 default
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{HTTPS} off
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
# If you are having problems with the rewrite rules, remove the "#" from the
# line that begins "RewriteBase" below. You will also have to change the path
# of the rewrite to reflect the path to your XenForo installation.
#RewriteBase /xenforo
# This line may be needed to workaround HTTP Basic auth issues when using PHP as a CGI.
#RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -l [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^.*$ - [NC,L]
RewriteRule ^(data/|js/|styles/|install/|favicon\.ico|crossdomain\.xml|robots\.txt) - [NC,L]
RewriteRule ^.*$ index.php [NC,L]
</IfModule>
<ifModule mod_headers.c>
Header set Strict-Transport-Security "max-age=31536000; includeSubDomains; preload"
Header set X-XSS-Protection "1; mode=block"
Header set X-Content-Type-Options nosniff
Header set X-Frame-Options SAMEORIGIN
Header set Referrer-Policy: no-referrer-when-downgrade
Header set Expect-CT enforce,max-age=2592000,report-uri=https://linux.report-uri.com/r/d/ct/enforce
</ifModule>
# php -- BEGIN cPanel-generated handler, do not edit
# Set the ea-php72 package as the default PHP programming language.
<IfModule mime_module>
AddHandler application/x-httpd-ea-php72___lsphp .php .php7 .phtml
</IfModule>
# php -- END cPanel-generated handler, do not edit