Accounts with a custom domain may also use custom URLs. A custom URL lets you include your brand name or other information in the URL. This gives your brand more visibility and makes your URL more memorable.
Here’s how to set it up:
On the Create Short URL page, after choosing your own domain, an extra field will appear beside the domain.
Enter any Chinese or alphanumeric characters you like and click [Save] to create your customized URL. (What is a custom domain?)