---
title: "Multi-condition PADNS Lookup"
slug: "multi-condition-padns-lookup"
updated: 2026-01-07T18:28:25Z
published: 2026-01-07T18:28:25Z
canonical: "help.silentpush.com/multi-condition-padns-lookup"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.silentpush.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Multi-condition PADNS Lookup

```plaintext
GET /explore/padns/lookup/both/{qtype}/{qname}/{qanswer}
```

Reverse lookup of Passive DNS data.

| **Query Parameters:** | - **qtype (string) (required) –** - the following qypes are supported: - a - aaaa - cname - mx - ns - ptr4 - ptr6 - **qname (string) (required) –** - specify a name or IP address to lookup - name - wildcards (*) are supported in name string - IPv4 - IPv6 - **qanswer (string) (required) –** - specify a name or IP address to lookup - name - wildcards (*) are supported in name string - IPv4 - IPv6 - **match = (string) (optional) –** - find records where query = and answer equal or not equal to - eq (default) - answer must match - neq - answer must not match - **name = (string) (optional) –** - additional name to match qanswer - up to 5 additional names may be given - wildcards are supported - **netmask = (int) (optional) –** - net mask may be given for qtypes a or aaaa - use to find records in the same subnet - defaults: IPv4 = 32, IPv6 = 128 - **net = (string) (optional) –** - find ptr4 or a records where ipv4 in or not in subnet defined by netmask - in (default) - find records in subnet - notin - find records not in subnet - **network = (string) (optional) –** - additional network and net mask - give option as 1.1.1.1/24 - up to 5 additional networks may be given - **asnum = (int) (optional) –** - AS number to search, may be repeated multiple time for additional AS numbers - parameter may be used with qtype=a or qtype=ptr4 - use to find records in the same AS number - **asn = (string) (optional) –** - find ptr4 or a records where ipv4 in or not in ASN defined by asnum - in (default) - find records in ASN - notin - find records not in ASN - **asname = (string) (optional) –** - search all AS numbers where the AS Name begins with - **asname_starts_with = (string) (optional) –** - search all AS numbers where the AS Name begins with - **asname_contains = (string) (optional) –** - search all AS numbers where the AS Name contains - **first_seen_after = (optional) –** - first_seen timestamp must be on or after this time - date: yyyy-mm-dd (2021-07-09) - fixed date - epoch: number (1625834953) - fixed time in epoch format - sec: negative number (-172800) - relative time seconds ago - time period: negative number with time period (-36h / -5d / -3w / -6m) - relative time ago - h : hours - d : days - w : weeks - m : months - **first_seen_before = (optional) –** - first_seen timestamp must be on or before this time - date: yyyy-mm-dd (2021-07-09) - fixed date - epoch: number (1625834953) - fixed time in epoch format - sec: negative number (-172800) - relative time seconds ago - time period: negative number with time period (-36h / -5d / -3w / -6m) - relative time ago - h : hours - d : days - w : weeks - m : months - **last_seen_after = (optional) –** - last_seen timestamp must be on or after this time - date: yyyy-mm-dd (2021-07-09) - fixed date - epoch: number (1625834953) - fixed time in epoch format - sec: negative number (-172800) - relative time seconds ago - time period: negative number with time period (-36h / -5d / -3w / -6m) - relative time ago - h : hours - d : days - w : weeks - m : months - **last_seen_before = (optional) –** - last_seen timestamp must be on or before this time - date: yyyy-mm-dd (2021-07-09) - fixed date - epoch: number (1625834953) - fixed time in epoch format - sec: negative number (-172800) - relative time seconds ago - time period: negative number with time period (-36h / -5d / -3w / -6m) - relative time ago - h : hours - d : days - w : weeks - m : months - **as_of = (optional) –** - only return records where the as_of timestamp equivalent is between the first_seen and the last_seen timestamp - date: yyyy-mm-dd (2021-07-09) - fixed date - epoch: number (1625834953) - fixed time in epoch format - sec: negative number (-172800) - relative time seconds ago - time period: negative number with time period (-36h / -5d / -3w / -6m) - relative time ago - h : hours - d : days - w : weeks - m : months - sort = (optional) – - order results in specified order - parameter may be repeated with different column names to produce a nested sorting effect - sort: - last_seen/last/time_last - synonyms for last_seen column - first_seen/first/time_first - synonyms for first_seen column - query/rrname - synonyms for query column - answer/rdata - synonyms for answer_seen column - order: - asc/+/up - synonyms for ascending order - desc/-/down - synonyms for descending order - **output_format = (optional) –** - padns (default) - Silent Push padns output format - cof - common output format - **limit = (int) (optional) –** - number of results to return - default = 100 - **skip = (int) (optional) –** - number of results to skip - **prefer = (string) (optional) –** - result (default) - return results if available before max_wait timeout, otherwise return job_id - job_id - return job_id immediately - **max_wait = (int) (optional) –** - number of seconds to wait for results before returning job_id - default = 25 - value in the range from 0 to 25 - **with_metadata =<0\|1> (int) (optional) –** - include metadata object in response : returned results, total results, job_id - 0 (default) = do not include - 1 = include metadata |
| --- | --- |
| **Request headers:** | - *X-API-KEY - api-key* |

> [!NOTE]
> Note
> 
> Wildcards (*) are supported in qname and qanswer.
> 
> ```plaintext
> https://api.silentpush.com/api/v1/merge-api/explore/padns/lookup/both/ns/sil*push.*/*.ns.cloudflare.com
> ```

## Example Request

```plaintext
https://api.silentpush.com/api/v1/merge-api/explore/padns/lookup/both/ns/sil*push.*/*.ns.cloudflare.com \
     ?last_seen_after=2021-07-01 \
     &limit=2
```

## Example Response

```python
{
    "status_code": 200,
    "error": null,
    "response": {
        "records": [
            {
                "answer": "vida.ns.cloudflare.com",
                "count": 236,
                "first_seen": "2020-12-24 19:04:43",
                "last_seen": "2021-07-09 16:39:51",
                "nshash": "850c47a684c9ea9c32ece18e7be4cddc",
                "query": "silentpush.com",
                "ttl": 172800,
                "type": "NS"
            },
            {
                "answer": "henry.ns.cloudflare.com",
                "count": 236,
                "first_seen": "2020-12-24 19:04:43",
                "last_seen": "2021-07-09 16:39:51",
                "nshash": "850c47a684c9ea9c32ece18e7be4cddc",
                "query": "silentpush.com",
                "ttl": 172800,
                "type": "NS"
            }
        ]
    }
}
```

## Example Exclusion Search

Similar domains not on the given name servers.

```plaintext
https://api.silentpush.com/api/v1/merge-api/explore/padns/lookup/both/ns/sil*push.*/*.ns.cloudflare.com \
    ?last_seen_after=2021-07-01 \
    &limit=2 \
    &match=neq
```

```python
{
    "status_code": 200,
    "error": null,
    "response": {
        "records": [
            {
                "answer": "dns1.registrar-servers.com",
                "count": 299,
                "first_seen": "2020-12-25 22:55:52",
                "last_seen": "2021-07-10 19:03:43",
                "nshash": "12241179c5fb5626e98315c13551f23a",
                "query": "silverpush.co",
                "ttl": 3600,
                "type": "NS"
            },
            {
                "answer": "dns2.registrar-servers.com",
                "count": 299,
                "first_seen": "2020-12-25 22:55:52",
                "last_seen": "2021-07-10 19:03:43",
                "nshash": "12241179c5fb5626e98315c13551f23a",
                "query": "silverpush.co",
                "ttl": 3600,
                "type": "NS"
            }
        ]
    }
}
```