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Unified & Consistent
Whois API & Whois
Parser System
Example: google.com or 74.125.45.100

Whois API

This version of the API is deprecated. For the latest version, please visit
whoisapi.whoisxmlapi.com
Our Hosted Whois Web Service provides the registration details, also known as the Whois Record, of a domain name or an IP address.
The first 500 Whois API calls are complimentary when you register for a free developer account.

Benefits

  • Responsive image Get key data points for domains including Registrant name, organization, e-mail address, registration address, registrar information, creation date, expiration date, updated date, domain availability, domain age, and much more.
  • Responsive image All the Whois information is well parsed and normalized to a consistent format for easy integration with your business processes.
  • Responsive image The query results with both parsed fields and raw texts are returned in popular XML & JSON format.
  • Responsive image Real-time Whois data, ensuring that only the most up to date and accurate information is available.

Practical uses

  • Responsive image Cyber Security researchers use Whois API for investigating & curbing cybercrime.
  • Responsive image Cyber Security and anti-malware solutions use Whois API to detect spams, malicious websites, intrusions, and other online misbehaviors.
  • Responsive image Payment processors and banks use Whois API to detect transaction fraud.
  • Responsive image Domainers use Whois API to check domain names availability and to track domain registration changes.
  • Responsive image Registries, registrars and domain brokers use Whois API to ensure reliable and secure domain name ownership transfer and management.
  • Responsive image Brand agents use Whois data to protect their intellectual property and to check potential trademark infringements. They also use Whois searches to scope domain name similarities, duplicates, or copycats.
  • Responsive image Domain investors use the information gained from Whois searches to learn about their competition and to identify investment opportunities.
  • Responsive image Law enforcement agencies use Whois API to identify all the connected domains, websites and IP addresses associated with fraudulent activities and criminals.
  • Responsive image Website owners and managers use Whois API to identify new business and partnership opportunities and to locate potential buyers through the contact details provided in the Whois records.
These are some of the use cases of domain Whois API. Besides these, of course, innumerable industries and companies need Whois API for domain records.
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APIs
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  • Whois History API
  • Reverse Whois API
  • Reverse IP/DNS API
  • Reverse MX API
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  • Registrant Alert API
  • Bulk Whois API
  • DNS Lookup API
  • Email Verification API
  • IP Geolocation API
  • IP Netblocks API
  • Domain Reputation API
Domain Research
  • Whois Lookup
  • Reverse Whois/Registrant Search
  • Bulk Whois Lookup
  • Bulk Email Verification
Cyber-security Research
  • Threat Intelligence Platform
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  • Whois API Software Package
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  • Internet Statistics Reports
Enterprise Packages
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Data Feeds
  • Whois Database Download
  • Website Contact Database
  • Newly Registered Domains
  • Website Classification Database
  • Internet Retailer Database
  • Threat Intelligence Data Feeds
  • All Registered Domains
  • DNS Database Download
  • Real-time Domain Registration
  • IP Geolocation Data Feed
  • IP Netblocks Whois Data Feed
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