Billing Items

You are billed for WAF instances you select based on the billing mode you specify.

About Billing

To quickly learn about the price of WAF, see WAF Pricing Details.

Figure 1 WAF billing modes

**Table 1** Billing items
WAF Mode	Billing Mode	Billing Item	Description
Cloud Mode	Yearly/Monthly	Edition (mandatory)	Billed for the edition you buy. WAF standard, professional, and enterprise editions are paid services. For details, see Edition Differences.
		Domain Expansion Package (optional)	Billed based on the number of purchased domain expansion packages
		(Optional) QPS expansion package	Billed based on how many packages you purchased
		Rule Expansion Package (optional)	Billed based on how many packages you purchased
		Required duration	Billed on a yearly or monthly basis.
	Pay-per-use billing	Number of domain names Number of custom rules Number of requests	Number of domain names. Billed on an hourly basis. Once a domain name is added during the billing period, it will be billed no matter when it is deleted. Number of customized rules: Billed on a daily basis. The billing is calculated at 00:00:00 every day. Number of requests: Bills are settled on a monthly basis.
Dedicated Mode	Pay-per-use billing	Number of instances	Billed for what you use NOTE: For ECS-based instances, your dedicated WAF engines are deployed on your ECSs. WAF will bill you for the software of the dedicated engines, and ECS will bill you for the system and hardware.

Billing Examples

Take the yearly/monthly billing mode as an example. Assume that you purchased a professional edition cloud WAF instance at 15:50:04 on July 8, 2023, along with one domain name, QPS, and rule expansion packages. Your subscription is one month and you manually renew the subscription for one month before the subscription expires. The billing details are as follows:

The first billing cycle is from July 8, 2023, 15:50:04 to Aug. 8, 2023, 23:59:59.
The second billing cycle is from Aug. 8, 2023, 23:59:59 to Sep. 8, 2023, 23:59:59.

Figure 2 Yearly/Monthly billing details