Reverse DNS API | WhoisXML API

Reverse DNS API lists all domain names that use specific DNS records

Reverse DNS API lets you see the list of domain names tied to the specified DNS records via API calls with outputs in JSON and XML.

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500 free API credits. No credit card required.

Reverse DNS API | WhoisXML API

Get 500 free API credits. No credit card required.

Get started

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Our APIs are available in an enhanced version that offers better performance with a dedicated load balancer and a premium endpoint to enable faster throttling for large-scale API deployments.

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Enterprise API Packages

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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