Hi Desai,

You can change the default landing page in CommunitiesLandingController. CommunitiesLandingPage is the Active Site Home Page for your community, meaning that it is shown when someone enters a direct URL to your community.

Here are the steps to update the CommunitiesLandingController code to redirect to the new page:

    - Click Setup.
    - Enter Apex classes in quick find box and click it.
    - Find CommunitiesLandingController and click Edit.
    - The default code of CommunitiesLandingController below:
    
    /**
 * An apex page controller that takes the user to the right start page based on credentials or lack thereof
 */
public with sharing class CommunitiesLandingController {
    // Code we will invoke on page load.
    public PageReference forwardToStartPage() {
        return Network.communitiesLanding();
    }    
    public CommunitiesLandingController() {}
}

The new code will be:-
/**
 * An apex page controller that takes the user to the right start page based on credentials or lack thereof
 */
public with sharing class CommunitiesLandingController {
    
    // Code we will invoke on page load.
    public PageReference forwardToStartPage() {
    String communityUrl = 'https://google.com'; //URL of new page
     return new PageReference(communityUrl);   
   }
    
    public CommunitiesLandingController() {}
}

    - At last Click Save
    
    
I hope you find the above solution helpful. If it does, please mark as Best Answer to help others too.

Thanks,
Ajay Dubedi