Step 1: Log into your cPanel account via http://cpanel.domainname.com
Step 2: Navigate and open the option Redirects.
Step 3: Select the domain name from the drop-down list.
Step 4: Enter the recirect URL.
Step 5: Make sure that you check the Wild Card Redirect checkbox and then click Add.
Note: For example, the address http://site1.com/contact-us/ will redirect to http://site2.com/contact-us/