Find all domains
that use the same name server

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1,246,759,978
Domains and subdomains

1,376,145
NS records updated daily

1,182
Satisfied customers

Fast response & easy integration

A fast and easy-to-use API for quick access to the largest database.
All the results are duly parsed and normalized to a consistent format such as JSON and XML to easily integrate with your business processes.

Increase your website availability

Prevent your website from unavailability which may occur if the name server it is hosted on is blacklisted.
Identify other domains that share the name server or the same hosting company.
Check the congestion of your NS server. Server overload may compromise the display of your site.

Security check

Uncover connected domains that may otherwise seem unrelated.
Perform research on suspicious name servers.
Protect your website from defacement.

Enterprise API Package

API access through WhoisXMLAPI can be purchased as an annual subscription. The access pricing is based on the number of queries, which is measured monthly with per-minute rate limits. The pricing structure gives predictability to business planning and solution architecture.

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