Paste the code right before the closing body tag of every page. Replace www.mywebsitedomain.com in the code with your custom domain
After you install the script on your site, open your Offerbox dashboard and click "Configure" in the navigation menu.
Find Website settings and add your custom domain.
The value in this field must be the same as the domain of your website. Nowadays, most websites have numerous domains. You must have a domain that begins with "www" and a root domain, as illustrated below.
As a result, it's critical to set up a principal domain for your website and establish redirects to that domain. Offerbox only allows one domain at a time. If users access your site through other domains and there are no redirects to the original domain, Offerbox will be hidden from view.