Open Domain settings
Go to Settings → Business → Domain.
Enter your preferred adresses
Fill out:
Subdomain (example: book, portal, homes)
Company Domain (example: yourdomain.com)
Then click Connect Domain.
Copy the DNS records into your domain provider
Fotello will display the required DNS records.
Copy each CNAME record by clicking on it and paste it into your domain provider’s DNS settings.
Match the values exactly. Don’t add extra spaces or change punctuation.
After you update DNS, wait for the changes to take effect.