1. After going through the first 3 steps indicated in this article in order to add your new subdomain, below are the following steps you need to take in the domain registrar before going back to finish the process and having your new subdomain in Instapage.
2. Sign in and go to your Services page;
3. Click the Domain link;
4. Locate the A and CNAME Records section then click the Add link;
5. Now you need to enter any subdomain name you want in the Source field and “secure.pageserve.co” in the Destination field, then click Add.
Success! Now you can publish your Instapage landing page on your custom domain.
Note: While we try to keep all of our instructional articles that involve third-party services up to date, sometimes they make changes to their platform of which we are not aware and, as a consequence, the user interface may differ from the provided screenshots.