Use DescribeDcdnDomainCname to check CNAME resolution - Edge Security Acceleration - Alibaba Cloud - Edge Security Acceleration

Operation description

Note

Single user call frequency: 80 calls per second.

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Test

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

dcdn:DescribeDcdnDomainCname

get

*Domain

acs:dcdn:*:{#accountId}:domain/{#domainName}

None

Request parameters

Parameter	Type	Required	Description	Example
DomainName	string	Yes	The accelerated domain names. Separate multiple domain names with commas (,). You can specify up to 30 domain names in a single query.	example.com,example.org

Response elements

Element	Type	Description	Example
	object
RequestId	string	The request ID.	15C66C7B-671A-4297-9187-2C4477247A74
CnameDatas	object
Data	array<object>	The CNAME information.
	object
Status	integer	The CNAME configuration status. A value of `0` indicates success. Other values indicate a configuration error. `0`: DNS resolution detected the assigned CNAME. `1`: DNS resolution has not detected the assigned CNAME. `-1`: The DNS resolution check timed out.	0
Domain	string	The accelerated domain name.	.example.com
Cname	string	The CNAME assigned to the domain name by Alibaba Cloud DCDN.	a.com.w.alikunlun.net
Passed	string	Specifies whether the CNAME passed the DNS resolution check. Valid values: `true`: The check passed. `false`: The check failed. `timeout`: The check timed out.	true
ErrMsg	string	The error message returned if the CNAME check fails or times out.	timeout

Examples

Success response

JSON format

{
  "RequestId": "15C66C7B-671A-4297-9187-2C4477247A74",
  "CnameDatas": {
    "Data": [
      {
        "Status": 0,
        "Domain": ".example.com",
        "Cname": "a.com.w.alikunlun.net",
        "Passed": "true",
        "ErrMsg": "timeout"
      }
    ]
  }
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.