You can implement custom rules to accommodate specific user requirements or application scenarios.
Create a custom rule
In the ESA console, choose Websites and click the name of the website you want to manage.
In the left-side navigation pane, choose . Click Create to create a load balancer, or click Edit in the Actions column of your load balancer.

While creating or editing a load balancer, click Create Custom Rule in the Configure Custom Rule tab.

Enter a Rule Name and select or edit properties in the If requests match... tab.
NoteThe expression builder offers a variety of common request attributes. Select the appropriate request matching rules and generate expressions tailored to your needs. For more information, see Work with rules.
An accelerated domain name can redirect to different origins based on the URI path.
You can select a match type from the match type drop-down list. For more information, see Match fields.
You can select an operator from the operator drop-down list. For more information, see Match operators.

For Then execute..., choose either Respond With Specified Content or Override.

Action
Item
Description
Respond with Specified Content
Status Code
Optional. Default value: 200.
Content-Type Response Header
Optional. Default value: application/octet-stream.
Location Response Header
Optional. The HTTP header is not responded to by default. The maximum size is 1024 bytes.
Response Body
Optional. This parameter is empty by default, which means that the HTTP body is empty. The maximum size is 1024 bytes.
Override
Origin Pool
Specifies the origin pool.
Fallback Pool
Specifies the fallback pool.
Traffic Steering Policy
Specifies the traffic steering policy.
Session Persistence
Enable or disable session persistence.
Region-level Pool
Region-level origin pool.
Subregion-level Pool
Subregion-level origin pool within the corresponding region.
Load Balancer TTL
Controls the time-to-live of packets in the network.
Terminate
Terminates the matching and running of the custom rule for the load balancer.
Click Complete.