1. Go to Persona Bar > Settings > Site Settings.

   

    

2. Go to the Search tab, and then the Crawling subtab.
   
3. In Duplicates, click/tap + Add Regex Pattern.
   
   

   
4. Define the regex pattern for duplicates.
   
   

   

   
   

   Field	Description
   Description	A name for the regex pattern entry. Typically, the name of the module that generates the dynamic content in pages that match the specified pattern.
   Regex Pattern	The regular expression that describes the various URLs and URL parameters of pages that are considered duplicates.

5. Save.
   

Testing

You can test that regex has successfully excluded the URL by:

1. Go to the site's Search Results
2. Search for the keyword that you've excluded in your Regular Expression.