Each Geo Block service you create in our system will come with its own javascript code snippet.
This piece of javascript code needs to be placed into your WIX site only once. It does not need to be updated if any changes are made to the block settings.
Steps:
Go to Settings in your site's dashboard
Click the Tracking & Analytics tab under Advanced Settings
Click + New Tool and select Custom
Paste the JavaScript provided in the redirect setup
Choose if you need to run the redirect on all pages or selected pages
Ensure you select 'Load code on each new page'
Ensure you select 'Place code in - Head'
Click Apply
More information regarding adding Custom scripts in WIX can be found here