If the cost of your Web Application Firewall (WAF) instance does not meet your business requirements, you can switch between the billing methods. You can unsubscribe from your WAF instance or terminate the WAF service and purchase a new WAF instance to meet your business requirements. This topic describes how to switch between billing methods.
Usage notes
You cannot directly change the billing method of a WAF instance. To change the billing method, you must unsubscribe from the WAF instance or terminate the WAF service. Then, purchase a new WAF instance and select a different billing method.
If you use a subscription WAF instance, you must unsubscribe from the instance before you purchase a new instance. If you use a pay-as-you-go WAF instance, you must terminate the WAF service before you purchase a new instance. When you unsubscribe from your WAF instance or terminate the WAF service, the instance is released. If you add a domain name to your WAF instance in CNAME record mode, requests may still be sent to WAF after the instance is released. However, the requests cannot be forwarded to the origin server. As a result, access to your website fails. Therefore, you must modify your website configuration to redirect web traffic to the origin server before you perform the unsubscribe or terminate operation.
Switch the billing method from subscription to pay-as-you-go
1. Unsubscribe from a subscription WAF instance
If you want to unsubscribe from your subscription WAF instance and the instance meets the following conditions, contact your account manager or solution architect to apply for unsubscription:
The instance was purchased within the previous five days.
The instance was not used.
2. Purchase a pay-as-you-go WAF instance
Go to the Web Application Firewall 3.0 (Pay-as-you-go) buy page.
Set the Billing Method parameter to Pay-as-you-go. Then, configure other parameters based on your business requirements.
After you confirm the configurations, click Buy Now and complete the payment.
After you purchase a pay-as-you-go WAF instance, you can purchase security capacity unit (SeCU) resource plans to offset traffic processing fees and feature fees to reduce costs. For more information about SeCU resource plans and how to purchase the resource plans, see SeCU resource plans.
Switch the billing method from pay-as-you-go to subscription
1. Terminate the WAF service
If you use a pay-as-you-go WAF instance, you do not need to unsubscribe from the instance. If you no longer require a pay-as-you-go WAF instance, you can terminate the WAF service at any time. After you terminate the WAF service, you are no longer charged fees.
If you want to unsubscribe from your SeCU resource plan and the resource plan meets the following conditions, contact your account manager or solution architect to apply for unsubscription:
The SeCU resource plan was purchased within the previous five days.
The SeCU resource plan was not used.
2. Purchase a subscription WAF instance
Go to the Web Application Firewall 3.0 (Subscription) buy page.
Set the Billing Method parameter to Subscription. Then, configure other parameters based on your business requirements. For more information about the features supported by pay-as-you-go and subscription WAF instances, see Editions.
Click Buy Now and complete the payment.
References
For more information about the subscription and pay-as-you-go billing methods of WAF, see Billing rules of subscription WAF 3.0 instances and Billing rules of pay-as-you-go WAF 3.0 instances.