This API is used to query the domain name that a certificate secures.

**Table 1** Path parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Specifies the project ID.
certificate_id	Yes	String	Specifies the certificate ID.

Request parameters

None

Response parameters

**Table 2** Parameter description
Parameter	Type	Description
hostname	Array	Specifies the domain names.

Response example

{
    "hostname": ["www.a.com","www.b.com"]
}

Table 3 describes the normal status code returned by the API.

**Table 3** Status code
Status Code	Description	Meaning
200	OK	The request has succeeded.

For details about error status codes, see Status Codes.

Querying the Domain Name that A Certificate Secures