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Unified Real-Time WHOIS API Tailored for Cybersecurity

RST Cloud offers a unified WHOIS API service, delivering normalised real-time data from registrars worldwide in a simple JSON format. Unlock the potential of real-time answers, eliminating reliance on cached data. Gain access to both unified and raw responses, ensuring comprehensive insights for cybersecurity cases. Trust our unified API for seamless integration into any practical scenario, empowering your cybersecurity efforts with accurate, up-to-date information.

Group 33012 whois

Key Usage

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Phishing investigations

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SPAM investigations and e-mail security

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FRAUD detection

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Tracking domain registration information and checking domain name availability

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Researching web infrastructure, locating geo positions

What makes us different

–°omprehensive unified API which you can use from any platform, system or security tool

Real-time whois data for any domain in a ready-to-use unified format (JSON)

No query rate limits from registrars

Keeping your requests private by proxying them on behalf of our service

Flexible pricing policy with a low initial entry cost


Use in the Antispam solution to assess the reliability of the domain - lifetime, availability of registration data, etc.


Use by SOC experts during investigating a suspected incident to obtain detailed data about a domain


Checking the existence/availability of a domain name for various purposes (OSINT and brand protection, search for phishing resources, investment analysis of domain names, etc.)

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Banks and financial companies to prevent fraud - checking discrepancies in customer information and preventing intruders


Marketing research, market, sales and other big data analytics


Explore the capabilities of the RST Whois API service, which provides essential domain details including creation date, last update date, expiration date, registrar information, domain age, current status, registration status, raw Whois records, and nameserver details. Access this data in real-time using an API key and receive it in a convenient JSON format for easy integration into your applications. Perform Whois lookups at any rate without concerns about bans.

  "status":: "registered",
  "registered?":: "true",
  "created_on":: "2022-01-01 00:00:00",
  "updated_on":: "2022-01-01 00:00:00",
  "expires_on":: "2023-01-01 00:00:00",
  "age":: 365,
  "registrar":: "Registrar Name",
  "registrant":: "Registrant Name",
  "nameservers":: ",",
  "raw":: "Domain Name: DOMAIN.COM\r\n
           Registry Domain ID: 2138514_DOMAIN_COM-VRSN..."