Jak zrobić aby ten kod htaccess nie działał na subdomene

RewriteEngine On

####
# Certain hosts may require the following line.
# If vanilla is in a subfolder then you need to specify it after the /.
# (ex. You put Vanilla in /forum so change the next line to: RewriteBase /forum)
####
RewriteBase /

# Make sure that / doesn't try to go to index.php without a rewrite :)
DirectoryIndex disabled

####
# Deny access to certain directories that SHOULD NOT be exposed.
####
RewriteRule (^|/)\.git - [L,R=403]
RewriteRule ^cache/ - [L,R=403]
RewriteRule ^cgi-bin/ - [L,R=403]
RewriteRule ^uploads/import/ - [L,R=403]
RewriteRule ^vendor/ - [L,R=403]

####
# Prevent access to any php script by redirecting the request to /index.php
# You can add an exception by adding another RewriteCond after this one.
# Example: RewriteCond %{REQUEST_URI} !^/yourscriptname.php$
# You can comment out this section if it causes you problems.
# This is just a nice to have for security purposes.
####
RewriteCond %{REQUEST_URI} !/index.php$
RewriteRule (.+\.php) [E=X_REWRITE:1,E=X_PATH_INFO:/$1,L]

####
# Redirect any non existing file/directory to /index.php
####
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule (.*) index.php [E=X_REWRITE:1,E=X_PATH_INFO:/$1,L]

####
# Add the proper X_REWRITE server variable for rewritten requests.
####
RewriteCond %{ENV:REDIRECT_X_REWRITE} .+
RewriteCond %{ENV:REDIRECT_X_PATH_INFO} (.+)
RewriteRule ^index\.php - [E=X_REWRITE:1,E=!REDIRECT_X_REWRITE,E=X_PATH_INFO:%1,E=!REDIRECT_X_PATH_INFO,L]