This topic describes the billing methods of the Anti-DDoS Premium Insurance and Unlimited mitigation plans.

Overview

Anti-DDoS Premium provides advanced mitigation to protect your services that are deployed in regions outside the Chinese mainland against DDoS attacks. The number of advanced mitigation sessions that you can use varies based on the mitigation plan that you purchase. You can purchase the Insurance or Unlimited mitigation plan.

Anti-DDoS Premium supports only the subscription billing method. Before you use Anti-DDoS Premium, you must purchase an Anti-DDoS Premium instance. When you purchase an Anti-DDoS Premium instance, you must specify the mitigation plan, instance specifications, and subscription period and complete the payment. The Anti-DDoS Premium instance provides advanced mitigation within the subscription period that you specify.

  • Advanced mitigation

    Advanced mitigation protects your services against DDoS attacks by taking advantage of Alibaba Cloud Anti-DDoS scrubbing centers outside the Chinese mainland.

    Services that are protected by Anti-DDoS Premium are less vulnerable to DDoS attacks. In most cases, the goal of DDoS attacks is to disrupt your services. The cost of launching a DDoS attack is relatively high. If attackers cannot achieve their goal within the time frame, they stop their attacks.

    Anti-DDoS Premium provides unlimited advanced mitigation and integrates with all Alibaba Cloud Anti-DDoS scrubbing centers outside the Chinese mainland to protect your services.

    Notice If the attacks that are launched against your services threaten the infrastructure of the Anti-DDoS scrubbing centers, Alibaba Cloud reserves the rights to throttle network traffic. If throttling is triggered for your Anti-DDoS Premium instance, your services may be adversely affected. For example, the network traffic may be throttled or blackhole filtering may be triggered.
  • Insurance mitigation plan

    The Insurance mitigation plan is a basic mitigation plan of Anti-DDoS Premium. The Insurance mitigation plan provides two advanced mitigation sessions per month and is suitable for users who are less likely to be targeted. If DDoS attacks are detected, advanced mitigation is triggered and one advanced mitigation session is consumed to provide unlimited protection over the next 24 hours. The number of advanced mitigation sessions that are available is automatically reset to two on the first day of each month.

    For example, a volumetric DDoS attack was detected on a protected IP address at 11:20:00 on September 12 (UTC+8), and advanced mitigation was triggered. One advanced mitigation session was consumed to provide unlimited protection for the IP address over the next 24 hours. Then, another volumetric DDoS attack was detected on the same IP address at 18:50:00 on September 13 (UTC+8), and advanced mitigation is triggered. Another advanced mitigation session was consumed because this attack happened 24 hours after the first attack. In this case, the two sessions included in the Insurance mitigation plan for September were exhausted. The number of advanced mitigation sessions that are available is reset to two on October 1.

    Example
    Note If the two advanced mitigation sessions that are provided per month cannot meet your business requirements, we recommend that you purchase global advanced mitigation. For more information, see Billing methods of global advanced mitigation sessions.
  • Unlimited mitigation plan

    The Unlimited mitigation plan provides unlimited advanced mitigation sessions to protect your services against DDoS attacks at all times.

Pricing

The following table describes the prices of an Anti-DDoS Premium instance with default specifications at different clean bandwidths. Anti-DDoS Premium provides the Standard and Enhanced function plans. The prices vary based on the function plan. For more information about the Standard and Enhanced function plans, see Function plan.

Warning The clean bandwidth of an instance must be greater than the peak volume between the inbound and outbound traffic of protected services.

If the actual bandwidth exceeds the clean bandwidth of the instance, throttling and packet loss may occur. In this case, your services may become unavailable, respond slowly, or have high latency for a period of time.

If the clean bandwidths that are listed in the following table cannot meet your business requirements, submit a ticket.
Mitigation plan Clean bandwidth Unit price of the Standard function plan(USD/month) Unit price of the Enhanced function plan(USD/month)
Insurance
Two advanced mitigation sessions per month
Note You can purchase global advanced mitigation sessions to obtain more advanced mitigation sessions. For more information, see Billing methods of global advanced mitigation sessions.
100 Mbit/s 2,630 3,830
150 Mbit/s 3,420 4,620
200 Mbit/s 4,210 5,410
250 Mbit/s 5,000 6,200
300 Mbit/s 5,570 6,770
Unlimited

Unlimited advanced mitigation sessions

100 Mbit/s 11,560 12,760
150 Mbit/s 12,610 13,810
200 Mbit/s 13,660 14,860
250 Mbit/s 14,720 15,920
300 Mbit/s 15,770 16,970

The following table describes the default specifications of an Anti-DDoS Premium instance and the prices for upgrades. If the default specifications cannot meet your business requirements, you can select higher specifications when you purchase the instance. You can also upgrade the instance after you purchase it.

Item Description Default value Price for upgrades
Number of protected ports The number of TCP and UDP ports that the instance can protect 5 Price for every five ports: USD 150/month
Number of protected domain names The number of HTTP and HTTPS domain names that the instance can protect 10
Note You can add one second-level domain name and nine subdomains of this second-level domain name. Alternatively, you can add 10 domain names that belong to a second-level domain name.
  • Price for every 10 domain names in the Standard function plan: USD 45/month
  • Price for every 10 domain names in the Enhanced function plan: USD 75 /month
Note For every 10 additional domain names, the total number of second-level domain names that are supported is increased by one.
Queries per second (QPS) The maximum number of HTTP and HTTPS requests that the instance can concurrently process per second if no attacks occur
  • Insurance mitigation plan: 500
  • Unlimited mitigation plan: 1,000
Price for every 100 QPS: USD 150/month

Instance expiration

If you do not renew your Anti-DDoS Premium instance in time after the instance expires, your services are adversely affected. The following table describes the impacts.
Time period Protection capability Traffic forwarding Instance configuration
From the expiration date to 30 (excluded) calendar days after the expiration date The instance provides only the basic protection against attacks of 5 Gbit/s.

If you renew your instance within this time period, the instance continues to provide the protection capabilities based on the plan that you purchased.

The instance still forwards service traffic. Instance configurations are retained.
30 (included) calendar days after the expiration date to later points in time The instance provides only the basic protection against attacks of 5 Gbit/s. The instance no longer forwards service traffic.
Warning If you no longer need Anti-DDoS Premium, you must switch service traffic from the Anti-DDoS Premium instance to the origin server 30 calendar days before the expiration date. Otherwise, access to your services may be adversely affected. If you want to switch service traffic, make sure that the domain name of your website does not map to the CNAME assigned by Anti-DDoS Premium. You must also make sure that your non-website service does not use an exclusive IP address provided by the instance.
The Anti-DDoS Premium instance is released.
Warning After all Anti-DDoS Premium instances that are created by using your Alibaba Cloud account are released, the configurations that are added to Anti-DDoS Premium, such as website access configurations, port access configurations, mitigation settings, and reports, are deleted and cannot be restored. If you want to use Anti-DDoS Premium again, you must purchase and configure another Anti-DDoS Premium instance.

Refunds

You cannot cancel the subscription of an Anti-DDoS Premium instance before the expiration date. The 5-day money-back guarantee does not apply to subscription Anti-DDoS Premium instances. After you create an Anti-DDoS Premium instance, you cannot request a refund of the fees that you paid.