Web Application Firewall (WAF) lets you switch between the subscription and pay-as-you-go billing methods. This topic describes how to switch your billing method.
Conversion type | WAF instances in the Chinese mainland | WAF instances outside the Chinese mainland |
Subscription to pay-as-you-go | Immediate conversion is not supported. Shut down WAF after your subscription instance expires. Then, enable a new pay-as-you-go instance. The new pay-as-you-go instance is a WAF 3.0 instance. | Pay-as-you-go is not supported. Billing method conversion is not applicable. |
Pay-as-you-go to subscription | Immediate conversion is not supported. Shut down the pay-as-you-go instance. Then, purchase a new subscription instance. The new subscription instance is a WAF 3.0 instance. |
关闭WAF实例前，请确认当前配置的网站域名DNS已解析回源站。关于修改DNS解析的具体操作，请参见修改DNS解析记录。
关闭WAF实例后，所有网站域名配置信息将被清空。如果仍有请求到达WAF实例，将无法被正常转发，导致网站无法正常访问。