Cost / License
- Free
- Proprietary
Platforms
- Online

IP Ninja is described as 'Advanced intelligence API providing enriched Reverse IP lookups, comprehensive WHOIS parsing, and historical network data for security professionals' and is an website in the development category. There are more than 10 alternatives to IP Ninja, not only websites but also apps for Windows, Self-Hosted and SaaS. The best IP Ninja alternative is ip.me, which is free. Other great sites and apps similar to IP Ninja are WhoisAPI, DomainTools, Active Whois Browser and Whoisology.

WhoisAPI is the premier provider of freshly parsed whois data for domain names and IP addresses, also providing IP to geolocation, HTML to PDF, and domain availability RESTful HTTP APIs. Billing is performed on a pay as you go basis, free monthly use.




Domain name research, including comprehensive Whois Lookup, Reverse Whois Lookup and Whois History. Domain name monitoring tools and buyer/seller tools...

Active Whois Browser is useful network information utility what allow finding information about owners of internet domains and IP adresses. Lookup country, persons and postal adresses of who use domain or IP address.




Whoisology is a searchable domain name reverse whois / ownership database with over one billion individual domain name records that are updated pretty regularly.

Whois domain information such as registrar, domain status, expiration date, and name servers.

Domain name lookup tool that allows you to get information about domain registration from WHOIS server.

ICANN (Internet Corporation for Assigned Names and Numbers) WHOIS search lets you lookup any generic domain to find out the registered domain owner and related information.

Obtain domain name status information with this effective and intuitive application that allows you to batch process multiple entries. Domain Checker is a simple, but powerful whois lookup tool for users that require a domain availability analyzer.

Bulk Whois API is a provider of parsed WHOIS data in JSON with simple API, competitive pricing, and top notch support. We support all TLDs including new gTLDs as well as IP addresses. Spend no more than necessary to get WHOIS data for your business.

Enterprise Fraud Detection: Detect multi-account users taking advantage of your free layers, discounts and referral programs, bots, scrapers, disposable credentials and scammers.

Domainers can make informed and wise business decisions by backing up their research with DomainIndex.com’s WHOIS Database Download.