If the current Anti-DDoS Pro or Anti-DDoS Premium instance expires and you purchase a new instance, you can modify the settings of the added domain name to migrate your service to the new instance without service interruptions.


  1. Log on to the Anti-DDoS Pro console.
  2. In the top navigation bar, select the region where your services are deployed.
    • Mainland China: Anti-DDoS Pro
    • Outside Mainland China: Anti-DDoS Premium
  3. In the left-side navigation pane, choose Provisioning > Website Config.
  4. Find the required domain name, and click Edit in the Actions column.
  5. Select the new instance for Instance and click OK.
    • You cannot add a domain name to instances of both the Standard and Enhanced function plan.
    • Each domain name can be added to a maximum of eight instances of the same function plan.
    Modify the domain name settings
  6. In the Confirm dialog box, confirm the selected Anti-DDoS Pro or Anti-DDoS Premium instance and click OK.Confirm


After you modify the domain name settings, protection policies of the original Anti-DDoS Pro or Anti-DDoS Premium instance are applied to the new instance to protect your service.