Reverse DNS API

Find the Reverse DNS details of any IP Address

Our Reverse DNS API returns DNS Pointer (PTR) record for a given IP address.

This is especially useful for email servers for spam prevention or authentication. Automate checks on source IP addresses to ensure they are from legitimate hosts.

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Why Choose ViewDNS.info Reverse DNS API?

  • Consistently Parsed Results
  • Simple Integration into your Business Processes
  • Highly Scalable to meet Business Needs
  • Live Data Ensure Accurate Results
  • Subscription Includes Access to ALL ViewDNS.info APIs

Our Valued Customers Include:

Blizzard DuckDuckGo Kaspersky NTT LaPoste

Key Reverse DNS API Features

Simple Integration

Take the hassle out of dealing with the DNS protocol and leave that to us. Leverage our responsive API to retrieve Reverse DNS data.

Highly Scalable

Our Reverse DNS API employs a highly scalable backend ensuring that even high volume searches are met with the highest success rate.

Live Data

Our data is retrieved in real time ensuring that Reverse DNS records returned are fresh.

Reliable Results

Backed by ViewDNS.info's long-standing reputation in DNS and IP intelligence services, ensuring high availability and reliability.

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Usage Details

Retrieve reverse DNS details for any IP address.

/reversedns GET

https://api.viewdns.info/reversedns/

Retrieve the pointer record of an IP address.

Parameters

  • apikey required

    Your API key associated with your ViewDNS.info account.

  • ip required

    The IP address to retrieve the reverse DNS entry for (e.g., 9.9.9.9).

  • output optional (default=json)

    The output format required ('xml' or 'json').

Sample Request Live Demo!

https://api.viewdns.info/reversedns/?ip=9.9.9.9&apikey=demo&output=json

Sample Response

{
  "query": {
    "tool": "reversedns_PRO",
    "ip": "9.9.9.9"
  },
  "response": {
    "rdns": "dns9.quad9.net."
  }
}

Code Example