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Alibaba Cloud DNS:DescribeDomainNs

Last Updated:Sep 09, 2025

Queries the current list of name servers for a domain name and determines whether the servers are managed by Alibaba Cloud DNS.

Operation description

Note

This operation directly queries the authoritative server of the domain name registry to retrieve the DNS server names for the domain name. An error may be returned if the domain name is inactive. For example, if the domain name has a serverHold or clientHold status, or has not passed identity verification.

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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

alidns:DescribeDomainNs

get

*domain

acs:alidns::{#accountId}:domain/{#DomainName}

None None

Request parameters

Parameter

Type

Required

Description

Example

Lang

string

No

The language of the request and response.

Valid values:

zh: Chinese
en: English



Default value: zh.

en

DomainName

string

Yes

The domain name. You can call the DescribeDomains operation to obtain this value.

example.com

Response elements

Element

Type

Description

Example

object

AllAliDns

boolean

Indicates whether all name servers are Alibaba Cloud DNS servers.

true

RequestId

string

The unique request ID.

16C7DC7A-2FA7-4D14-8B12-88A2BB6373DB

ExpectDnsServers

object

ExpectDnsServer

array

The name servers assigned to the domain name by Alibaba Cloud DNS.

string

The name server assigned to the domain name by Alibaba Cloud DNS.

x1.alidns.com,x2.alidns.com

DnsServers

object

DnsServer

array

The name servers that are currently configured for the domain name.

string

The name server that is currently configured for the domain name.

vip1.alidns.com,vip2.alidns.com

IncludeAliDns

boolean

Indicates whether the list of name servers includes Alibaba Cloud DNS servers.

true

DetectFailedReasonCode

string

The error code returned if the detection fails.

DnsCheck.Failed

Examples

Success response

JSON format

{
  "AllAliDns": true,
  "RequestId": "16C7DC7A-2FA7-4D14-8B12-88A2BB6373DB",
  "ExpectDnsServers": {
    "ExpectDnsServer": [
      "x1.alidns.com,x2.alidns.com"
    ]
  },
  "DnsServers": {
    "DnsServer": [
      "vip1.alidns.com,vip2.alidns.com"
    ]
  },
  "IncludeAliDns": true,
  "DetectFailedReasonCode": "DnsCheck.Failed"
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.