---
title: Get Passive DNS by IP
---
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[API Reference](https://developers.cloudflare.com/api/python)
[Intel](https://developers.cloudflare.com/api/python/resources/intel)
[DNS](https://developers.cloudflare.com/api/python/resources/intel/subresources/dns)
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# Get Passive DNS by IP
intel.dns.list(DNSListParams\*\*kwargs) -> SyncV4PagePagination\[Optional\[DNS]]
GET/accounts/{account\_id}/intel/dns
Gets a list of all the domains that have resolved to a specific IP address.
##### Security
API Token
The preferred authorization scheme for interacting with the Cloudflare API. Create a token.
**Example:**Authorization: Bearer Sn3lZJTBX6kkg7OdcBUAxOO963GEIyGQqnFTOFYY
API Email + API Key
The previous authorization scheme for interacting with the Cloudflare API, used in conjunction with a Global API key.
**Example:**X-Auth-Email: user@example.com
The previous authorization scheme for interacting with the Cloudflare API. When possible, use API tokens instead of Global API keys.
**Example:**X-Auth-Key: 144c9defac04969c7bfad8efaa8ea194
##### Accepted Permissions (at least one required)
`Intel Write``Intel Read`
##### ParametersExpand Collapse
account\_id: str
Identifier.
maxLength32
[Link to this property](<#(resource)%20intel.dns%20%3E%20(method)%20list%20%3E%20(params)%20default%20%3E%20(param)%20account_id%20%3E%20(schema)>)
ipv4: Optional\[str]
[Link to this property](<#(resource)%20intel.dns%20%3E%20(method)%20list%20%3E%20(params)%20default%20%3E%20(param)%20ipv4%20%3E%20(schema)>)
page: Optional\[float]
Requested page within paginated list of results.
[Link to this property](<#(resource)%20intel.dns%20%3E%20(method)%20list%20%3E%20(params)%20default%20%3E%20(param)%20page%20%3E%20(schema)>)
per\_page: Optional\[float]
Maximum number of results requested.
[Link to this property](<#(resource)%20intel.dns%20%3E%20(method)%20list%20%3E%20(params)%20default%20%3E%20(param)%20per_page%20%3E%20(schema)>)
start\_end\_params: Optional\[StartEndParams]
end: Optional\[Union\[null, null]]
Defaults to the current date.
formatdate
Link to this property
start: Optional\[Union\[null, null]]
Defaults to 30 days before the end parameter value.
formatdate
Link to this property
[Link to this property](<#(resource)%20intel.dns%20%3E%20(method)%20list%20%3E%20(params)%20default%20%3E%20(param)%20start_end_params%20%3E%20(schema)>)
##### ReturnsExpand Collapse
class DNS: …
count: Optional\[float]
Total results returned based on your search parameters.
Link to this property
page: Optional\[float]
Current page within paginated list of results.
Link to this property
per\_page: Optional\[float]
Number of results per page of results.
Link to this property
reverse\_records: Optional\[List\[ReverseRecord]]
Reverse DNS look-ups observed during the time period.
first\_seen: Optional\[date]
First seen date of the DNS record during the time period.
formatdate
Link to this property
hostname: Optional\[str]
Hostname that the IP was observed resolving to.
Link to this property
last\_seen: Optional\[date]
Last seen date of the DNS record during the time period.
formatdate
Link to this property
Link to this property
[Link to this property](<#(resource)%20intel.dns%20%3E%20(model)%20dns%20%3E%20(schema)>)
### Get Passive DNS by IP
Python
HTTPTypeScriptPythonGoTerraform
```
import os
from cloudflare import Cloudflare
client = Cloudflare(
api_token=os.environ.get("CLOUDFLARE_API_TOKEN"), # This is the default and can be omitted
)
page = client.intel.dns.list(
account_id="023e105f4ecef8ad9ca31a8372d0c353",
)
page = page.result.items[0]
print(page.count)
```
200 example
```
{
"errors": [
{
"code": 1000,
"message": "message",
"documentation_url": "documentation_url",
"source": {
"pointer": "pointer"
}
}
],
"messages": [
{
"code": 1000,
"message": "message",
"documentation_url": "documentation_url",
"source": {
"pointer": "pointer"
}
}
],
"success": true,
"result": {
"count": 1,
"page": 1,
"per_page": 20,
"reverse_records": [
{
"first_seen": "2021-04-01",
"hostname": "hostname",
"last_seen": "2021-04-30"
}
]
},
"result_info": {
"count": 1,
"page": 1,
"per_page": 20,
"total_count": 2000
}
}
```
##### Returns Examples
200 example
```
{
"errors": [
{
"code": 1000,
"message": "message",
"documentation_url": "documentation_url",
"source": {
"pointer": "pointer"
}
}
],
"messages": [
{
"code": 1000,
"message": "message",
"documentation_url": "documentation_url",
"source": {
"pointer": "pointer"
}
}
],
"success": true,
"result": {
"count": 1,
"page": 1,
"per_page": 20,
"reverse_records": [
{
"first_seen": "2021-04-01",
"hostname": "hostname",
"last_seen": "2021-04-30"
}
]
},
"result_info": {
"count": 1,
"page": 1,
"per_page": 20,
"total_count": 2000
}
}
```