The Show Start Page field is used to show members the URL they must click to reach the site's paid start page.

This output field has no variables.
However, there is a useful customisation worth mentioning, allowing the URL to be a hyperlink to the start page itself

Examples:
• Standard format: <? show_start_page_url(); ?>
• Custom 'clickable' format:
  < href=" <? show_start_page_url(); ?> " target="_blank"> <a href="<? show_start_page_url(); ?>" target="_blank"><? show_start_page_url(); ?> </a>