In this custom domain section, you can use your own domain name instead of MYFUNDBOX. Using your own domain name with web address will make your site seem authentic for your customers and also it will give a consistent user experience.
By upgrading this feature, you can get the following benefits as shown in the below image.
Before using the custom domain feature, you can see the URL and website name is MYFUNDBOX.com as shown in the above image.
After using the custom domain feature, the customer can change the URL and website name as per their requirements as shown in the above image. This will give your customer a consistent user experience.