> For the complete documentation index, see [llms.txt](https://docs.console.zenlayer.com/api-reference/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.console.zenlayer.com/api-reference/networking/cdn/domain/describedomainorigin.md).

# DescribeDomainOrigin

## 1. API Description

This API is used to query the origin information of an accelerated domain.

## 2. Request Parameters

The following table lists the required request parameters for this API.

| Parameter Name | Required | Type   | Description                      |
| -------------- | -------- | ------ | -------------------------------- |
| domainId       | Yes      | String | The ID of the accelerated domain |

## 3. Output Parameters

| Parameter Name | Type                                                            | Description                                                                                  |
| -------------- | --------------------------------------------------------------- | -------------------------------------------------------------------------------------------- |
| requestId      | String                                                          | A unique request ID. This ID is returned for each request. It is needed for locating issues. |
| origin         | [Origin](/api-reference/networking/cdn/datastructure.md#origin) | Origin information.                                                                          |

## 4. Code Example

{% tabs %}
{% tab title="Example" %}

1. **Query Origin of Accelerated Domain**

```json
POST / HTTP/1.1
Host: console.zenlayer.com/api/v2/cdn
Content-Type: application/json
X-ZC-Action: DescribeDomainOrigin
<Common Request Params>

Request:
{
    "domainId": "domainIdxxxxx"
}

Response:
{
    "requestId": "T6883FCD0-3E7D-44EA-A517-A421A52A27F4",
    "response": {
        "requestId": "T6883FCD0-3E7D-44EA-A517-A421A52A27F4",
        "origin": {
            "masterSource": "1.1.1.1",
            "slaverSource": "2.2.2.2",
            "originPort": "80",
            "originPortHttps": "443"
        }
    }
}

S3Source Response:
    {
    "requestId": "T6883FCD0-3E7D-44EA-A517-A421A52A27F4",
    "response": {
        "requestId": "T6883FCD0-3E7D-44EA-A517-A421A52A27F4",
        "origin": {
            "masterSource": "test.s3.ap-southeast-1.amazonaws.com",
            "s3SourceConfig": {
                "accessKey": "AKIAU73DY4VOLNGXTRJW",
                "secretKey": "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",
                "service": "S3",
                "region": "ap-southeast-1"
            }
        }
    }
}

```

{% endtab %}
{% endtabs %}

## 5. Error Codes

The following includes error codes encountered in business logic. For other error codes, see [Common Error Codes](/api-reference/api-introduction/instruction/commonerrorcode.md).

| HTTP Status Code | Error Code                        | Description                                      |
| ---------------- | --------------------------------- | ------------------------------------------------ |
| 404              | INVALID\_DOMAIN\_NOT\_FOUND       | The specified accelerated domain does not exist. |
| 403              | DOMAIN\_OPERATION\_NO\_PERMISSION | Operation denied due to lack of permission.      |