dns

Reverse DNS (PTR) data for the IP, also mirrored inside the network group.

Field	Type	Description
`ptr_record`	`string`	Reverse DNS (PTR) hostname for the IP, when one resolves.
`ptr_pattern`	`string`	Classification of the PTR hostname, e.g. "residential", "mobile".
`fcrdns_valid`	`boolean`	Forward-confirmed reverse DNS: whether the PTR hostname resolves back to this IP.

A field with no value comes back as the string "none", or 0 for numbers. The API never returns null.

Example

The dns group for 8.8.8.8, from a real lookup on 24 October 2026. Values change as the data is refreshed.

{
  "dns": {
    "ptr_record": "dns.google",
    "ptr_pattern": "none",
    "fcrdns_valid": true
  }
}