Get Passive DNS by IP

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 WriteIntel Read

Path ParametersExpand Collapse

account_id: string

Identifier.

maxLength32

Query ParametersExpand Collapse

ipv4: optional string

page: optional number

Requested page within paginated list of results.

per_page: optional number

Maximum number of results requested.

start_end_params: optional object { end, start }

end: optional string

Defaults to the current date.

formatdate

start: optional string

Defaults to 30 days before the end parameter value.

formatdate

ReturnsExpand Collapse

errors: array of object { code, message, documentation_url, source }

code: number

minimum1000

message: string

documentation_url: optional string

source: optional object { pointer }

pointer: optional string

messages: array of object { code, message, documentation_url, source }

code: number

minimum1000

message: string

documentation_url: optional string

source: optional object { pointer }

pointer: optional string

success: true

Whether the API call was successful.

result: optional DNS { count, page, per_page, reverse_records }

count: optional number

Total results returned based on your search parameters.

page: optional number

Current page within paginated list of results.

per_page: optional number

Number of results per page of results.

reverse_records: optional array of object { first_seen, hostname, last_seen }

Reverse DNS look-ups observed during the time period.

first_seen: optional string

First seen date of the DNS record during the time period.

formatdate

hostname: optional string

Hostname that the IP was observed resolving to.

last_seen: optional string

Last seen date of the DNS record during the time period.

formatdate

result_info: optional object { count, page, per_page, total_count }

count: optional number

Total number of results for the requested service.

page: optional number

Current page within paginated list of results.

per_page: optional number

Number of results per page of results.

total_count: optional number

Total results available without any search parameters.

Get Passive DNS by IP

curl https://api.cloudflare.com/client/v4/accounts/$ACCOUNT_ID/intel/dns \
    -H "Authorization: Bearer $CLOUDFLARE_API_TOKEN"

{
  "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

{
  "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
  }
}