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Server Load Balancer:DescribeDomainExtensionAttribute

Last Updated:Mar 02, 2026

Queries the attributes of an additional domain name.

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RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

  • Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.

  • API: The API that you can call to perform the action.

  • Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.

  • Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.

    • For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.

    • For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.

  • Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.

  • Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

slb:DescribeDomainExtensionAttribute

get

*loadbalancer

acs:slb:{#regionId}:{#accountId}:loadbalancer/{#loadbalancerId}

  • slb:tag
None

Request parameters

Parameter

Type

Required

Description

Example

RegionId

string

Yes

The ID of the region where the Server Load Balancer (SLB) instance is deployed.

cn-hangzhou

DomainExtensionId

string

Yes

The ID of the additional certificate.

de-bp1r******

Response elements

Element

Type

Description

Example

object

Domain

string

The domain name.

www.example.com

RequestId

string

The request ID.

48C1B671-C6DB-4DDE-9B30-1055******

LoadBalancerId

string

The ID of the SLB instance.

lb-bp1o95i6*****

ListenerPort

integer

The frontend port of the HTTPS listener that is configured for the SLB instance. Valid values: 1 to 65535.

443

ServerCertificateId

string

The ID of the server certificate used by the domain name.

231579085529123_166f82******_1714763408_709981430

DomainExtensionId

string

The ID of the additional certificate.

de-bp1rp******

Examples

Success response

JSON format

{
  "Domain": "www.example.com",
  "RequestId": "48C1B671-C6DB-4DDE-9B30-1055******",
  "LoadBalancerId": "lb-bp1o95i6*****",
  "ListenerPort": 443,
  "ServerCertificateId": "231579085529123_166f82******_1714763408_709981430",
  "DomainExtensionId": "de-bp1rp******"
}

Error codes

HTTP status code

Error code

Error message

Description

400 InvalidParameter.DomainExtensionId %s.
400 MissingParameter.DomainExtensionId The param DomainExtensionId is missing

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.