The subscription billing method requires you to pay for resources before you use them. This billing method allows you to reserve resources and reduce costs based on discounted rates. This topic describes the billing rules of subscription Web Application Firewall (WAF) 3.0 instances.
Procedure
Scenarios
- The usage period of resources can be estimated.
- Resource usage remains relatively flat.
- Resources are used for a long period of time.
Billable items
The fees for subscription WAF instances include fees for basic services and fees for value-added services.
Basic services refer to the default services provided by your WAF instance. You are charged based on your WAF edition and subscription period.
Value-added services refer to services that you can specify whether to enable based on your business requirements.
For information about basic services and value-added services that are supported by each edition, see Editions.
For information about the fees for basic services and value-added services, go to the Web Application Firewall 3.0 (Subscription) buy page.
For information about the fees for the major event protection feature, see the "Billing rules" section in the Major event protection topic.
Billing cycle
The billing cycle of a subscription WAF instance is the period of time that you specify when you purchase the instance. The time is in UTC+8. The billing cycle starts at the time when the subscription instance is purchased or renewed and is accurate to the second. The billing cycle ends at 00:00:00 on the day after the expiration date.
The billing cycles of subscription instances are in the unit of calendar years or months.
The billing cycle of the major event protection feature starts at the time when you enable the feature and ends at the time when the validity period expires.
Instance expiration
After your WAF instance expires, the instance no longer provides services. The following list describes the details of billing rules:
You can receive renewal notifications by email or text message 15 days, 7 days, 3 days, and 1 day before your WAF instance expires.
If you do not renew your WAF instance before the instance expires, your WAF instance no longer provides services after the instance expires.
After your WAF instance expires, your WAF instance enters a 15-day grace period. During the grace period, the configurations of your WAF instance are retained.
If you renew your WAF instance in the grace period, you can continue using your WAF instance. If you do not renew your WAF instance in the grace period, your WAF instance is released. If you want to reuse WAF, you must purchase and configure a new WAF instance.