In the Partners.House dashboard, go to the "Streams" section.
Click on the "Create New" button.
On the newly opened page, click "Add Site/Landing".
Begin filling out the form. Enter the site name and URL (you can enter the URL in both fields).
In the site verification section, choose "DNS TXT" record and copy the generated line.
Open Cloudflare.
Click on the domain you want to add.
In the sidebar, go to the DNS section.
Click on "Add records".
In the settings that appear, choose Type as TXT.
The following form should appear:
In the Name field, enter the symbol @.
Set TTL to 1 min.
In the "Content" paste the line copied from the Partners.House dashboard.
Click the "Save" button.
Wait for 10 minutes, then in the Partners.House dashboard, click the "Check" button.
The site should pass the verification successfully. After that, click the "Save Platform" button at the bottom.