How to Verify Your Domain for Facebook Business Manager

To verify your domain for Facebook Business Manager, use the following steps:

Make sure that you’ve already added the domain to your HostM hosting account.
If you’ve not already done so, add your domain to Facebook Business Manager per their instructions.
Facebook Business Manager will provide you with a DNS TXT Record that you’re asked to create to verify your domain.
Make a note of the TXT value that’s provided, which looks something like this:facebook-domain-verification=XXXXXXXX.
Leave the browser window or tab open.
Open a new browser window or tab, then sign in to your HostM hosting account’s cPanel.
Your cPanel access details are listed on the hosting account’s Info page in the Client Lounge.
Under the Domains heading, click Zone Editor.
Next to the domain you wish to modify, click Manage.
Just below the search box, click TXT.
To the right of the search box, click the down arrow in the blue button that says Add Record (be sure to click the down arrow, not the text itself), then select Add TXT Record.
Enter the following details:
- Name: example.com
  Record: facebook-domain-verification=XXXXXXXX
  Replace example.com with your own domain.
  Replace facebook-domain-verification=XXXXXXXX with the actual TXT value that is shown in the Facebook Business Manager window or tab that you have open from earlier.
Click the Add Record button to the right.
Click the Verify button on the Facebook Business Manager page that you have open.

Your domain name should now be verified on Facebook Business Manager!