This topic describes how to improve the protection capability by upgrading Anti-DDoS
Origin to Anti-DDoS Pro or Anti-DDoS Premium. Given the design of Anti-DDoS Origin,
the effect of protection may be compromised or the protection capability cannot meet
your business requirements. In such cases, we recommend that you upgrade Anti-DDoS
Origin to Anti-DDoS Pro or Anti-DDoS Premium.
Background information
For more information about the scenarios for which Anti-DDoS Origin is suitable, see
Scenarios.
If one of the following issues occurs when you use Anti-DDoS Origin, we recommend
that you upgrade Anti-DDoS Origin to Anti-DDoS Pro or Anti-DDoS Premium:
- DDoS attacks are volumetric and last for a long period of time.
- HTTP flood attacks occur. However, Anti-DDoS Origin cannot mitigate these types of
attacks.
- Other specific issues.
Note If you upgrade Anti-DDoS Origin Enterprise to Anti-DDoS Pro or Anti-DDoS Premium,
Alibaba Cloud refunds you for the remaining subscription of Anti-DDoS Origin Enterprise.
If Anti-DDoS Origin Enterprise, Anti-DDoS Pro, or Anti-DDoS Premium cannot meet your
requirements, we recommend that you use the combination of Anti-DDoS Origin Enterprise
and Anti-DDoS Pro or Anti-DDoS Premium. For more information, see Use Anti-DDoS Origin Enterprise and Anti-DDoS Pro.
Procedure
- Contact Alibaba Cloud technical support in the DingTalk group for security services.
To join the DingTalk group for security services, scan the following QR code.

Note If you have any questions during the upgrade, contact Alibaba Cloud technical support
in the DingTalk group.
- Alibaba Cloud technical support engineers will evaluate your business scenario and
determine whether all upgrade conditions are met.
- If all conditions are met, Alibaba Cloud will refund you for the remaining subscription
of Anti-DDoS Origin Enterprise. The refund is calculated based on the specifications
and remaining subscription duration of the Anti-DDoS Origin Enterprise instance.
- Purchase an Anti-DDoS Pro or Anti-DDoS Premium instance.
- Add your services to Anti-DDoS Pro or Anti-DDoS Premium for protection.