Part of the constraints in Anti-DDoS Pro needs to be noted.
The maximum basic protection capability of Anti-DDoS Pro is 600G, while the maximum basic + elastic protection is 1.5T.
After the purchase is completed, no matter whether there is attack or not, there will be charges. It is non-refundable.
No charges when you purchase the package of elastic protection. However, if the actual attack reaches the peak value of elastic range, there will be pay orders on the day after and the billing depends on the attack.
An instance of Anti-DDoS Pro only provides 60 ports and 60 domains by default. In case of needs for more ports and domains, please purchase multiple instances.