Welcome To Our

IP Blacklist API

Below you can see some IP Blacklist API functionalities.

IP Blacklist API Documentation

IP Blacklist API documentation

In the link below you can access API documentation for our IP Blacklist API. There you will find information about Authentication, setting up input request, status codes and their description.

API documentation
IP Blacklist API Code Examples

IP Blacklist API code examples

Our IP Blacklist API is a restfull web API. Requests are done over HTTP or HTTPS, so it doesn’t matter if your application is written in PHP, Javascrpipt, Ruby, Python, Objective C, .NET or any other programming language.

Blacklist API code examples
How To Use Our Blacklist API

How to use our IP Blacklist API

Using WhoAPI’s IP Blacklist API is similar to using our other APIs. The only difference is you can check both a domain name, or an IP address. So if you are a hosting company with hundreds of IP addresses, or a email marketing company with thousands of them, our IP blacklist API can tell you when an IP adress or a domain name gets blacklisted by one of the major RBL blacklists.

How to use our API
IP Blacklist API Use Case

IP Blacklist API use case

Every day, billions of emails are sent. Not thousands. Not millions. Billions! It’s hard for any software or system to automatically or programmatically detect if a message is spam or a genuine important email message from one person to another. So there are a lot of false positives, and there are companies that get blacklisted just because of a bad neighborhood.

How to check if my email is blacklisted?
Oliver Keyes headshot

WhoAPI provides a tremendously valuable service – machine-readable WHOIS data! We’re using it for automatic checks of domain squatting around our trademarks.

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Oliver Keyes

Business
Monthly
Saint Nicholas
$ 141
$ 69
500,000 requests / month
  • JSON or XML API output
  • Check domain name for email blacklists
  • Check IP address for email blacklists
  • Money-back guarantee
  • Console access for manual blacklist checks
  • Priority support
  • Pay with a credit card, wire transfer, ACH, Link or G-Pay
  • SLA
  • Good for businesses
Startups
Monthly
Saint Nicholas
$ 56
$ 27
100,000 requests / month
  • JSON or XML API output
  • Check domain name for email blacklist
  • Check IP address for email blacklist
  • Money-back guarantee
  • Console
  • Email support
  • Payable by credit card, wire, ACH, Link or G-Pay
  • Good for startups
Intro
Monthly
Saint Nicholas
$ 23
$ 9
20,000 requests / month
  • JSON or XML API output
  • Check domain name for email blacklist
  • Check IP address for email blacklist
  • Money-back guarantee
  • Console
  • Email support
  • Payable by credit card, Link or G-Pay

Promotion

Get 10,000 API requests!

For new users only. You don’t need a credit card, just a reputable email address (not available for gmail.com, icloud.com, outlook.com, yahoo.com, temporary emails and so on).

30 days limit. Your first API request as soon as you sign up.

Whois API, Domain Availability API, Screenshot API, Email Blacklist API, SSL API, Email Score API, Domain Score API

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