You can call this operation to query the CNAME record assigned by the system.


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 DescribeGtmInstanceSystemCname

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

InstanceId String Yes instance1

The ID of the Global Traffic Manager (GTM) instance.

Lang String No en

The language used by the user.

Response parameters

Parameter Type Example Description
RequestId String 6856BCF6-11D6-4D7E-AC53-FD579933522B

The ID of the request.

SystemCname String

The CNAME record assigned by the system.


Sample requests

http(s):// Action=DescribeGtmInstanceSystemCname
&<Common request parameters>

Sample success responses

XML format


JSON format


Error codes

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