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    Edge Security Acceleration:DescribeDcdnService

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    Edge Security Acceleration:DescribeDcdnService

    Last Updated:Sep 11, 2025

    Call the DescribeDcdnService operation to query the status of the DCDN service. The status includes the current billing method, the service activation time, the next billing method that will take effect, and the current service status.

    Operation description

    Note

    The call frequency for each user is 30 calls per second.

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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

    dcdn:DescribeDcdnService

    get

    *All Resource

    *

    		 None None

    Request parameters

    Parameter

    Type

    Required

    Description

    Example

    No parameters required.

    Response elements

    Element

    Type

    Description

    Example

    object

    WebsocketChangingTime

    string

    The time when the WebSocket configuration change takes effect. This parameter has the same value as `ChangingAffectTime`. The time is displayed on the frontend only if it is later than the current time.

    2018-03-19T11:16:11Z
    WebsocketChangingType

    string

    The billing method for WebSocket that will take effect next. Valid values include websockettraffic (by traffic) and websocketbps (by bandwidth).

    websocketbps
    ChangingAffectTime

    string

    The time when the new billing method takes effect. The time is in GMT.

    2018-03-31T16:00:00Z
    ChangingChargeType

    string

    The billing method that will take effect next.

    • PayByTraffic: Pay by traffic.

    • PayByBandwidth: Pay by bandwidth.

    • PayByBandwidth95: 95th percentile monthly.

    • PayByBandwidth_monthavg: Monthly average bandwidth.

    • PayByBandwidth_month4th: Monthly 4th peak bandwidth.

    • PayByBandwidth_monthday95avg: Monthly average of the daily 95th percentile peak bandwidth.

    • PayByBandwidth_nighthalf95: 95th percentile monthly with a 50% discount for nighttime usage.

    PayByBandwidth
    RequestId

    string

    The request ID.

    EF2AEBC2-EDBD-41CF-BF64-7E095D42D6EF
    OpeningTime

    string

    The time when the DCDN service was activated. The time is in the ISO 8601 format.

    2018-03-19T11:16:11Z
    InternetChargeType

    string

    The current billing method.

    • PayByTraffic: Pay by traffic.

    • PayByBandwidth: Pay by bandwidth.

    • PayByBandwidth95: 95th percentile monthly.

    • PayByBandwidth_monthavg: Monthly average bandwidth.

    • PayByBandwidth_month4th: Monthly 4th peak bandwidth.

    • PayByBandwidth_monthday95avg: Monthly average of the daily 95th percentile peak bandwidth.

    • PayByBandwidth_nighthalf95: 95th percentile monthly with a 50% discount for nighttime usage.

    PayByTraffic
    WebsocketType

    string

    The current billing method for WebSocket. Valid values include websockettraffic (by traffic) and websocketbps (by bandwidth).

    websocketbps
    InstanceId

    string

    The instance ID.

    FP-mkqgwxxxx
    OperationLocks

    object

    LockReason

    array<object>

    The reasons why the service is locked.

    object

    LockReason

    string

    The reason why the service is locked. For example, `financial` indicates an overdue payment.

    financial

    Examples

    Success response

    JSON format

    {
  "WebsocketChangingTime": "2018-03-19T11:16:11Z",
  "WebsocketChangingType": "websocketbps",
  "ChangingAffectTime": "2018-03-31T16:00:00Z",
  "ChangingChargeType": "PayByBandwidth",
  "RequestId": "EF2AEBC2-EDBD-41CF-BF64-7E095D42D6EF",
  "OpeningTime": "2018-03-19T11:16:11Z",
  "InternetChargeType": "PayByTraffic",
  "WebsocketType": "websocketbps",
  "InstanceId": "FP-mkqgwxxxx",
  "OperationLocks": {
    "LockReason": [
      {
        "LockReason": "financial"
      }
    ]
  }
}

    Error codes

    See Error Codes for a complete list.

    Release notes

    See Release Notes for a complete list.