Registrant Monitor | Domain Owner Monitoring | Domain Research Suite | Search & Monitor Tools | WhoisXML API

Registrant Monitor helps you keep track of domain owners

Monitor all newly registered, updated, or deleted domain names registered by specific individuals or companies.

Registrant Monitor

Registrant Monitor helps you monitor the activity of individual registrants and companies, as shown on their domain WHOIS records. Add domain owners to your list and proactively track related new registrations, renewals, and expirations. This is a great tool to keep a close watch on your competition.

50 Billion+Domains and subdomains
20.0 Billion+WHOIS records
116 Billion+DNS records
14+Years of data crawling
13.5 Million+IP netblocks in total

Registrant Monitor Features

  • Daily Email Notifications

    Receive daily alerts for newly registered, updated, and expired domains connected to a specified registrant detail.

  • Edit Monitors

    Make changes to your monitors on the fly.

  • Downloadable JSON Results

    Download a copy of your monitoring results in JSON format.

  • Include or Exclude Search Terms

    Configure your monitors with multiple search terms for inclusion or exclusion.

  • Check Historical Results

    Review each monitor’s results for the past 14 days.

  • API Integration

    Registrant Monitor’s capabilities are available via Registrant Alert API.

Practical uses

  • Spot registration trends related to a physical address or a phone number so you can check if a registrant uses more than one name or company.

  • Staying close on the heels of suspicious registrants by keeping tabs on the domains they register or drop is possible with this service.

  • Stay ahead of your competitors by watching out for recent online acquisitions or modifications as they happen.

Calculate a suitable plan

Domain Research Suite | WhoisXML API

Ready for API integration?

Insights from Registrant Monitor are available as well via API calls. No complicated coding is necessary with our developer libraries.

Learn more about API integration

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