This topic describes the billing methods of Anti-DDoS Premium.
Anti-DDoS Premium provides Advanced Mitigation ① to defend against DDoS attacks for instances deployed outside mainland China.The number of advanced mitigation sessions that you can use depends on the mitigation plan that you purchase: Insurance Plan ② and Unlimited Plan ③ .
Anti-DDoS Premium is charged only in the subscription billing method. To use Anti-DDoS Premium to protect your workload, you must first purchase an Anti-DDoS Premium instance, and specify the mitigation plan, instance specifications, and subscription duration. The instance is ready for use after you complete the payment. An Anti-DDoS Premium instance provides advanced mitigation services within the subscription duration.
- ① Advanced mitigation
- Advanced mitigation protects your workload against DDoS attacks by integrating with
Alibaba Cloud Anti-DDoS scrubbing centers outside mainland China.
Services protected by Anti-DDoS Premium are less likely to be attacked. In most cases, attackers launch DDoS attacks to cause financial loss of the victims. Considering the costs of launching DDoS attacks, the attackers stop the DDoS attacks when they fail to reach the target.
Anti-DDoS Premium provides unlimited advanced mitigation sessions, and integrates with all Alibaba Cloud Anti-DDoS scrubbing centers outside mainland China to safeguard your workload.Notice If the attacks launched to your workload threaten the infrastructure of Anti-DDoS scrubbing centers, Alibaba Cloud reserves the right to throttle the network traffic. When traffic throttling is triggered for your Anti-DDoS Premium instance, your workload may be adversely affected. For example, user traffic may be throttled or even routed to a black hole.
- ② Insurance plan
- Insurance plan is a starter mitigation plan of Anti-DDoS Premium. Two advanced mitigation
sessions are provided monthly in this plan to protect users that are less likely to
be attacked. Advanced mitigation is automatically triggered when a DDoS attack targeting
your workload is detected. Then, an advanced mitigation session is consumed to provide
unlimited mitigation the next 24 hours. The number of available advanced mitigation
sessions is automatically reset at the first day of each month.
For example, a protected IP address receives a volumetric DDoS attack at 11:20:00 (UTC+8), September 12, 2019, and an advanced mitigation is triggered. Anti-DDoS Premium then consumes one mitigation session to offer unlimited protection for the IP address the next 24 hours. Then, the IP address suffers another volumetric DDoS attack at 18:50:00 (UTC+8), September 13, 2019, and advanced mitigation is triggered again. After 24 hours, the advanced mitigation stops. The two advanced mitigation sessions of Anti-DDoS Premium Insurance Plan for September are exhausted. The number of available advanced mitigation sessions is reset to two on October 1, 2019.Note If the two advanced mitigation sessions provided per month cannot meet your business needs, we recommend that you can purchase global advanced mitigation. For more information, see Global advanced mitigation.
- ③ Unlimited Plan
- Anti-DDoS Premium Unlimited Plan provides unlimited mitigation sessions. If you purchase Unlimited Plan, Anti-DDoS Premium provides unlimited mitigation sessions to protect your workloads against DDoS attacks.
The table below lists prices of Anti-DDoS Premium based on different clean bandwidth ④ values. Anti-DDoS Premium provides standard function and enhanced function plans. Fees vary based on the function plan that you choose. For more information, see Function plan.
- ④ Clean bandwidth
Clean bandwidth refers to the maximum bandwidth that an Anti-DDoS Premium instance can use to handle workloads when no attacks are detected. The clean bandwidth of an instance must be greater than the peak volume of the inbound or outbound traffic of the protected workload, whichever is higher.Warning If the actual bandwidth exceeds the clean bandwidth of the instance, traffic throttling and packet loss may occur. As a result, your workload may become unavailable or respond slowly within a period of time.
For more information about clean bandwidth and how to select the clean bandwidth, see Clean bandwidth.
|Mitigation plan||Clean bandwidth||Unit price of standard function (USD/month)||Unit price of enhanced function (USD/month)|
Two advanced mitigation sessions/month
Unlimited advanced mitigation sessions
The table below lists the default specifications of an Anti-DDoS Premium instance and the prices for upgrades. If the default specifications cannot meet your needs, specify higher specifications when you purchase the instance or upgrade the instance after you purchase it.
|Specification||Description||Default||Price for upgrades|
|Number of protected ports||The number of TCP and UDP ports that the instance protects.||5||Every 5 ports: USD 150/month|
|Number of protected domains||The number of HTTP and HTTPS domains that the instance protects.||10
Note The 10 domains can correspond to only one top-level domain. This means that the domains protected by an instance must belong to the same top-level domain. For more information, see Domains.
Note For every 10 domains added, the total number of supported top-level domains increases by one.
|QPS||The maximum number of HTTP and HTTPS requests that the instance can concurrently process per second if no attacks are detected||
||Every 100 QPS: USD 150/month|
|Before expiration||Alibaba Cloud reminds you through SMS messages, emails, and internal messages seven, three, and one day before the expiration date.|
|Within 30 days after expiration||
|30 days after expiration||If you do not renew an Anti-DDoS Premium instance within 30 days after the instance expires, the instance and its configurations are automatically released. If you want to continue using Anti-DDoS Premium, you must purchase another Anti-DDoS Premium instance and complete the configurations.|
The subscription fees paid for an Anti-DDoS Premium instance cannot be refunded after you purchase the instance.