To set up a custom domain, perform the following steps:

1. Sign in to your domain registrar's control panel.
   
2. Access the DNS Management Settings to change the DNS records. If you can't locate DNS Management, look for options such as Advanced Settings or Name Server Management.
   
3. Create a CNAME (or Canonical Name) entry from your sub-domain's admin portal.
   
4. Enter the hostname and point it to survey.cs.zohohost.com. Changes to the DNS system are not immediate; it may take some time for them to take effect.
5. Contact Zoho Survey Support to purchase the SSL certificate for your sub-domain free of cost. SSL certificate will be renewed for the CNAME entry pointed during your initial purchase. SSL certificates purchased from third-party vendors cannot be installed in Zoho Survey. When the SSL certificate is purchased for your sub-domain, you can try accessing the custom domain link available in the Launch tab of your survey. Remember to make sure your website is live the moment we try to access the survey link.
   
   

   Note

   If the Zoho Account is created under the Europe data centre Enter the hostname and point it to survey.cs.zohohost.eu  If the Zoho account is created under the Australia data centre Enter the hostname and point it to survey.cs.zohohost.com.au.  If the Zoho account is created under the India data centre Enter the hostname and point it to survey.cs.zohohost.in.  If the Zoho account is created under the Japan data centre Enter the hostname and point it to survey.cs.zohohost.jp. If the Zoho account is created under the china data centre Enter the hostname and point it to survey.cs.zohohost.com. cn