---
title: "Density Lookup"
slug: "density-lookup"
updated: 2026-01-07T21:54:34Z
published: 2026-01-07T21:54:34Z
---

> ## 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.

# Density Lookup

```plaintext
GET /explore/padns/lookup/density/{qtype}/{query}
```

| **Query Parameters:** | - **qtype (string) (required) –** - the following qypes are supported: - nssrv - mxsrv - nshash - mxhash - ipv4 - ipv6 - asn - **query (string) (required) –** - specify a value to lookup - name of NS or MX server - hash of NS or MX server - IPv4 or IPv6 address - AS number - **scope (string) (optional) –** - exact or near match results by qtype - for qtype = ipv4 - ip - exact match (default when qtype=ipv4) - subnet - summary of subnet for ipv4 - subnet_ips - density for all ips in subnet - asn - summary of asn for ipv4 - asn_subnets - summary for all subnets in asn - for qtype = asn - asn - summary of asn (default when qtype=asn) - asn_subnets - summary for all subnets in asn - for qtype = nssrv or qtype = mxsrv - host - exact match (default when qtype=nssrv or qtype=mxsrv) - domain - match all hosts in this domain (domain extracted from {query}) - subdomain - match all hosts at this subdomain level (i.e., *.{query}) |
| --- | --- |
| **Request headers:** | - *X-API-KEY - api-key* |

## Example Request

```plaintext
https://api.silentpush.com/api/v1/merge-api/explore/padns/lookup/density/nssrv/vida.ns.cloudflare.com
```

## Example Response

```python
{
    "status_code": 200,
    "error": null,
    "response": {
        "records": [
            {
                "density": 64082,
                "nssrv": "vida.ns.cloudflare.com"
            }
        ]
    }
}
```

## Example

Subnet scope from ipv4 address.

```plaintext
https://api.silentpush.com/api/v1/merge-api/explore/padns/lookup/density/ipv4/1.1.1.1?scope=subnet
```

```python
{
    "status_code": 200,
    "error": null,
    "response": {
        "records": [
            {
                "asn": 13335,
                "density_avg": 187.9,
                "density_max": 37852,
                "density_stddev": 2630.6,
                "ips_active": 206,
                "subnet": "1.1.1.0/24",
                "subnet_size": 256
            }
        ]
    }
}
```