Output format | Documentation | Reverse NS API | WhoisXML API

Output format

{
    "current_page": "0",
    "size": 300,
    "result": [
        {
            "name": "0.5.4.1.0.0.a.2.ip6.arpa",
            "first_seen": 1728827734,
            "last_visit": 1728827734,
            "active": false,
            "wildcard": null
        },
        {
            "name": "0.b.8.f.7.0.6.2.ip6.arpa",
            "first_seen": 1728753099,
            "last_visit": 1728753099,
            "active": false,
            "wildcard": null
        },
        {
            "name": "001e0205.cdn5.cc",
            "first_seen": 1712845024,
            "last_visit": 1724135302,
            "active": true,
            "wildcard": null
        },
        ...
   ],
}

Output parameters

result
Segment contains info about the resulting data, in this case NS.
result[0].name
Domain name
result[0].first_seen
Timestamp of the first time that the record was seen.
result[0].last_visit
Timestamp of the last update for this record.
result[0].wildcard

If the includeAdditionalChecks=1 flag wasn't passed in the query, this field will be absent in the response.

The wildcard field indicates whether the DNS record is part of a wildcard entry. To determine this:

  • We replace the last domain level with a random string, creating a new Fully Qualified Domain Name (FQDN) as a subdomain.
  • We then query the nameserver for this newly generated FQDN.
  • If the nameserver returns a DNS record for this random subdomain, the original domain is marked as a wildcard entry.

If the field is empty (null), it means that we have not yet checked the DNS record for this domain.

Possible values: true | false | null

result[0].active

If the includeAdditionalChecks=1 flag wasn't passed in the query, this field will be absent in the response.

The active field shows whether a DNS record exists for the given domain. The check works as follows:

  • The FQDN is queried multiple times against the DNS server.
  • If a valid DNS record is returned, the domain is marked as active.
  • If the DNS server returns an error or no record is found during these queries, the domain is marked as not active.

True means the DNS record was successfully retrieved, indicating that the domain's DNS resolution was successful. False indicates the DNS record could not be retrieved, meaning the domain's DNS resolution was unsuccessful during our attempts. If the field is empty (null), it means that we have not yet checked the DNS record for this domain.

Possible values: true | false | null

current_page
Selected page
size
Number of records in result segment.