WhoisXML API

Domains & Subdomains Discovery API

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Free Tier

With one API call, you will get a list of all linked domains and subdomains containing specified terms.

Benefits

Complete and precise Our Domains & Subdomains Discovery API works for nearly all top-level domains (TLDs), which now exceeds 7,298. Based on up-to-date data All the domains and subdomains that appear in the search results come from a huge database gathered for over 10 years of data crawling. The database is growing daily by an average of 1 million newly discovered subdomains. Unified results All information is well-parsed and normalized into either Extensible Markup Language (XML) and JavaScript Object Notation (JSON) format for easy integration with your business processes.

Practical usage

Cybercrime prevention Need to know which domains and subdomains may have ties to cybercrime? Domains & Subdomains Discovery API data can help mitigate phishing, malware-enabled, and other attacks. Marketing research Need a hand in getting to know your competitors better? Scrutinize their recently-created domains and subdomains to identify potential business expansion avenues.

Domains & Subdomains Discovery API Pricing

Pricing and Rate-Limit info.

$0 /mo

  • 500Requests/month

$19 /mo

  • 1,000Requests/month

$279 /mo

  • 20,000Requests/month

$5190 /mo

  • 500,000Requests/month

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