Redirecting an addon domain involves pointing it to a different URL using tools like cPanel. First, log in to your cPanel account and navigate to the "Domains" or "Redirects" section. Choose the addon domain you want to redirect from the dropdown menu. Then, enter the destination URL to which you want traffic to be sent. Select the type of redirection—301 for permanent or 302 for temporary. You can also choose whether to redirect with or without "www" and whether to apply the redirection to all files. Once set, cPanel updates the server configuration automatically. This method is useful for site migrations, brand changes, or merging websites, ensuring smooth user experience and maintaining search engine rankings.