An Anti-DDoS Proxy (Outside Chinese Mainland) instance under the Chinese Mainland Acceleration (CMA) mitigation plan has two billing components: a monthly subscription fee for the instance and pay-as-you-go charges for any additional features you enable.
The CMA mitigation plan does not protect against DDoS attacks on its own. To get DDoS protection, pair a CMA instance with an instance that has either the Insurance or Unlimited mitigation plan. When no attack is occurring, the CMA instance accelerates access for users in the Chinese mainland. During an attack, it automatically redirects traffic to your Insurance or Unlimited instance.
Billable items
The prices below are for reference only. The Anti-DDoS Proxy (Outside Chinese Mainland) buy page shows the current prices that apply to your purchase.
The CMA plan starts at USD 1,548/month, which includes 10 Mbit/s of clean bandwidth. A single CMA instance supports up to 100 Mbit/s of clean bandwidth.
To handle higher traffic volumes, add the following:
| Add-on | Price | Description |
|---|---|---|
| Clean bandwidth | USD 1,548/month per additional 10 Mbit/s | The maximum traffic the instance handles under normal conditions |
| 95th Percentile Burstable Clean Bandwidth | Daily or monthly billing | Extra clean bandwidth that activates during traffic spikes, keeping your service available |
For details on burstable clean bandwidth pricing, see Billing of the burstable clean bandwidth feature.
Example: If your service requires 30 Mbit/s of clean bandwidth, you pay USD 1,548/month for the base 10 Mbit/s plus USD 3,096/month for the additional 20 Mbit/s (2 x USD 1,548), for a total of USD 4,644/month before any burstable bandwidth charges.
Expiration policy
| Period | Service traffic | Instance status | Action required |
|---|---|---|---|
| Within 6 calendar days after expiry | Forwarding continues | Retained | Renew before the instance expires to maintain service speed |
| Day 7–14 post-expiration | Stops forwarding | Retained | If you no longer need the instance, update your DNS by day 7: remove the CNAME records that point to Anti-DDoS Proxy, and stop using the instance's exclusive IP addresses for non-website services |
| Day 15 and later | Stops forwarding | Released | — |
One month after all your Anti-DDoS Proxy instances are released, the system removes all domain names and port forwarding configurations. If you have multiple instances, the countdown starts when the last one is released.
Overdue payments
Your payment is overdue when your Alibaba Cloud account balance—including cash, vouchers, and coupons—is insufficient to cover outstanding charges. Top up your account promptly to avoid interruption to your pay-as-you-go services.
Renewal
Manually renew an instance or enable auto-renewal in the Anti-DDoS console.
Refunds
Instances are non-refundable after purchase.
Bill query
View your bills in the Expenses and Costs console. For more information, see Overview of Monthly Bill.