Twist! uses a gateway URL for some page requests.  To do this, the following .htaccess file is located (required) in the hosting root in the public_html folder:

RewriteEngine on
RewriteBase /
# prevent requests for /index.php being overwritten - no infinite loops
RewriteRule ^index\.php$ - [L]
# give requests for actual files and directories precedence over virtual requests
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
# redirect all virtual requests to client /twist/gateway.php
RewriteRule . /twist/gateway.php [L

-- If the home page is not template-based, index.php contains the actual code for the home page and the rewrite rules do not apply

-- If the home page is template-based,

	-- At LiquidWeb, the absence of a default file (index.php) does not generate a 404 error.  This temporarily "breaks" the Twist! single URL model
  -- The default behavior is to display the contents of the hosting direct (not good) because cPanel is used.
  -- Until changed the work around is to always have an index.php file even if the home page content is created by Twist!
  -- The following php script must be placed in the index.php file in each twist site folder:
  
  require('twist/admin/config.php'); -- reads the site-specific variables 
  require($strTwistPathMaster . 'core/php/initialize.php'); -- initializes the database interface
  require($strTwistPathMaster . 'core/php/gateway.php'); -- calls the twist! master gateway code
   
-- Other physical web files will be executed normally

-- Virtual URLs (no physical) file, are processed through the Twist! gateway url

	-- Twist! invokes a gateway url in the installation folder. (/twist/gateway.php)
	-- The function of gateway.php is as follows:

    -- call a local configuration file identifying the details of the installation to Twist!
    -- initialize variables and create a connection to the installation database
    -- attempt to locate the url in the database
      -- if found process the url
        -- the source can be 
      -- if not found report a 404 error