This is just a simple lookup for the reverse DNS info against a single IP address.

    https://stat.ripe.net/data/reverse-dns-ip/data.<format>?<parameters> 
  

e.g. https://stat.ripe.net/data/reverse-dns/data.json?resource=193.0.6.139

Parameters

Key	Value	Info	Required
resource	IP address for the query	-	YES

Output

Data

Key	Info
result	A single domain name.
error	If not empty explains an error that occurred (e.g. "Domain does not exists (NXDOMAIN)", "Timeout"...)

Example

    "data": {
      "query_time": "2013-02-04T15:06:00",
      "resource": "193.0.6.139",
      "result": "www.ripe.net.",
      "error": ""
    }