Domain Ownership API

Domain Ownership API

The Domain Ownership API provides detailed domain registration information, enabling users to retrieve ownership details, contact information, and registration history effortlessly.

About the API:  

The Domain Ownership API is a robust and essential tool for users looking for detailed information about domain registrations. This API allows users to retrieve complete WHOIS data, which provides information about the ownership, registration details and administrative contacts associated with a specific domain name. As the digital landscape continues to expand, the Domain Ownership API becomes an invaluable resource for due diligence, brand protection and cybersecurity efforts.

In essence, the Domain Ownership API simplifies the process of obtaining detailed domain registration information. Users can make requests by providing the target domain name as a parameter and, in return, receive a JSON response containing a wealth of information related to the domain's registration history and ownership details. This seamless and straightforward approach makes it an indispensable tool for a variety of applications, from cybersecurity platforms to domain management systems.

One of the key features of the Domain Ownership API is its ability to provide registrant details, including the name, organization and contact information associated with the domain. This information is crucial for companies conducting due diligence on potential partners, investors or customers, as well as for identifying the entities behind specific online platforms.

Domain registration and expiration dates are also included in the WHOIS data provided by the API. This information is valuable to companies and individuals managing domain portfolios, allowing them to track renewal dates and take proactive steps to maintain ownership of critical domains.

In summary, the Domain Ownership API is an invaluable asset to any entity involved in the digital landscape. Its ability to provide detailed and up-to-date WHOIS information enables users to make informed decisions, whether in the realm of cybersecurity, brand protection, due diligence or domain management. As the Internet continues to evolve, the WHOIS Search API remains a crucial tool for navigating the complexities of domain registrations and ensuring the security and integrity of online assets.

What this API receives and what your API provides (input/output)?

It will receive parameters and provide you with a JSON.


What are the most common uses cases of this API?

  1. Domain Ownership Verification: Verify the ownership and registration details of a domain to ensure authenticity and trustworthiness.

  2. Cybersecurity Investigations: Investigate potentially malicious domains by extracting WHOIS data to identify threat actors and assess potential risks.

  3. Brand Protection: Monitor domain registrations to detect instances of cybersquatting and unauthorized use of brand-related domains.


  4. Due Diligence for Mergers and Acquisitions: Conduct due diligence on the digital assets of potential partners by extracting detailed WHOIS information.

  5. Domain Portfolio Management: Manage and track domain portfolios by retrieving WHOIS data, including registration and expiration dates.

Are there any limitations to your plans?

  • Basic Plan: 3,000 API Calls. 100 requests per day.

  • Pro Plan: 6,000 API Calls. 200 request per day.

  • Pro Plus Plan: 12,000 API Calls. 400 request per day.

  • Premium Plan: 24,000 API Calls. 800 requests per day.

API Documentation


To use this endpoint, all you have to do is indicate a URL in the parameter.


Domain Information - Endpoint Features
Object Description
q [Required]
Test Endpoint


                                                                                                                                                                                                                            {"domainName":"","registryDomainId":"2138514_DOMAIN_COM-VRSN","registrarWhoisServer":"","registrarUrl":"","updatedDate":"2019-09-09T15:39:04+0000","creationDate":"1997-09-15T07:00:00+0000","registrarRegistrationExpirationDate":"2028-09-13T07:00:00+0000","registrar":"MarkMonitor, Inc.","registrarIanaId":"292","registrarAbuseContactEmail":"[email protected]","registrarAbuseContactPhone":"+1.2086851750","domainStatus":"clientUpdateProhibited ( clientTransferProhibited ( clientDeleteProhibited ( serverUpdateProhibited ( serverTransferProhibited ( serverDeleteProhibited (","registrantOrganization":"Google LLC","registrantStateProvince":"CA","registrantCountry":"US","registrantEmail":"Select Request Email Form at","adminOrganization":"Google LLC","adminStateProvince":"CA","adminCountry":"US","adminEmail":"Select Request Email Form at","techOrganization":"Google LLC","techStateProvince":"CA","techCountry":"US","techEmail":"Select Request Email Form at","nameServer":"","dnssec":"unsigned","urlOfTheIcannWhoisDataProblemReportingSystem":"","lastUpdateOfWhoisDatabase":"2023-11-09T18:45:52+0000 <<<"}

Domain Information - CODE SNIPPETS

curl --location --request GET '' --header 'Authorization: Bearer YOUR_API_KEY' 


API Access Key & Authentication

After signing up, every developer is assigned a personal API access key, a unique combination of letters and digits provided to access to our API endpoint. To authenticate with the Domain Ownership API REST API, simply include your bearer token in the Authorization header.


Header Description
Authorization [Required] Should be Bearer access_key. See "Your API Access Key" above when you are subscribed.

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To use this API the user must indicate a URL to obtain information related to the domain.

There are different plans suits everyone including a free trial for small amount of requests, but it’s rate is limit to prevent abuse of the service.

Zyla provides a wide range of integration methods for almost all programming languages. You can use these codes to integrate with your project as you need.

The Domain Ownership API is a powerful tool that allows users to retrieve detailed information about the ownership and registration details of a specific domain.

Zyla API Hub is, in other words, an API MarketPlace. An all-in-one solution for your developing needs. You will be accessing our extended list of APIs with only your user. Also, you won't need to worry about storing API keys, only one API key for all our products is needed.

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Prices are based on a recurring monthly subscription depending on the plan selected — plus overage fees applied when a developer exceeds a plan’s quota limits. In this example, you'll see the base plan amount as well as a quota limit of API requests. Be sure to notice the overage fee because you will be charged for each additional request.

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