Queries byte hit ratios for one or more accelerated domain names.


  • You can call this operation up to 10 times per second per account.
  • The network traffic destined for different domain names may be redirected to the same origin server. Therefore, the byte hit ratios may be inaccurate. The accuracy of query results is based on the actual configurations.
  • If you do not set the StartTime or EndTime parameter, the request returns the data collected in the last hour. If you set both the StartTime and EndTime parameters, the request returns the data collected within the specified time range.
Time granularity

The time granularity varies with the time range specified by the StartTime and EndTime parameters. The following table describes the time period within which historical data is available and the data delay.

Time granularity

Maximum time range per query

Historical data available

Data delay

1 minute

1 hour

7 days

5 minutes

5 minutes

3 days

93 days

15 minutes

1 hour

31 days

186 days

4 hours


OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer. OpenAPI Explorer dynamically generates the sample code of the operation for different SDKs.

Request parameters

Parameter Type Required Example Description
Action String Yes DescribeDcdnDomainRealTimeByteHitRateData

The operation that you want to perform. Set the value to DescribeDcdnDomainRealTimeByteHitRateData.

DomainName String Yes example.com

The domain name. Separate multiple domain names with commas (,).

StartTime String No 2017-12-10T20:00:00Z

The beginning of the time range to query. Specify the time in the ISO 8601 standard in the yyyy-MM-ddTHH:mm:ssZ format. The time must be in UTC.

EndTime String No 2017-12-10T21:00:00Z

The end of the time range to query. Specify the time in the ISO 8601 standard in the yyyy-MM-ddTHH:mm:ssZ format. The time must be in UTC.

The end time must be later than the start time.

Response parameters

Parameter Type Example Description
RequestId String B955107D-E658-4E77-B913-E0AC3D31693E

The ID of the request.

Data Array of ByteHitRateDataModel

The list of byte hit ratios.

ByteHitRate Float 0.8956940476262277

The byte hit ratio.

TimeStamp String 2016-10-20T04:00:00Z

The timestamp of the data returned. The time follows the ISO 8601 standard. The time is displayed in UTC.


Sample requests

&<Common request parameters>

Sample success responses

XML format

HTTP/1.1 200 OK


JSON format

HTTP/1.1 200 OK

  "Data" : [ {
    "ReqHitRate" : "0.8956940476262277",
    "TimeStamp" : "2016-10-20T04:00:00Z"
  } ],
  "RequestId" : "B955107D-E658-4E77-B913-E0AC3D31693E"

Error codes

For a list of error codes, visit the API Error Center.