The WHOIS Data API provides comprehensive and up-to-date information on internet domains through quick and accurate queries. When a domain is entered, the API returns essential data such as registration status (whether it is available or taken), creation date, last update, and other attributes related to the domain's lifetime.
Among the main uses of this API is the verification of domain availability for web projects or digital businesses, as it allows you to immediately determine whether a domain name is free to be registered or already belongs to an organization. In addition, it provides a historical and current overview of the domain through key dates such as the initial registration and the most recent updates, which helps to evaluate the age, reliability, and activity level of a website.
Another important benefit is its application in the field of cybersecurity. By querying domains, security teams can identify potential risks, suspicious domains, or update patterns that could be related to fraud or phishing attempts. Similarly, market analysis companies can use WHOIS data to study domain acquisition trends and the digital presence of competitors.
The API has been designed with a focus on simplicity and scalability, offering structured responses in JSON format that facilitate integration into internal systems, monitoring applications, or domain management platforms. Thanks to its lightweight and fast architecture, it is possible to execute massive queries without compromising performance.
In conclusion, the WHOIS Data API is a reliable and versatile solution that optimizes domain management and analysis. Whether for registering new brands, protecting digital assets, or researching the evolution of web pages, this API is an essential tool for any organization seeking security, transparency, and control in its digital environment.
{"domain":"amazon.com","taken":true,"register_date":"1994-11-01T05:00:00Z","last_update":"2025-07-31T17:49:55Z"}
curl --location --request POST 'https://zylalabs.com/api/10593/whois+data+api/20154/whois+data' --header 'Authorization: Bearer YOUR_API_KEY'
--data-raw '{
"domain": "amazon.com"
}'
| Header | Description |
|---|---|
Authorization
|
[Required] Should be Bearer access_key. See "Your API Access Key" above when you are subscribed. |
No long-term commitment. Upgrade, downgrade, or cancel anytime. Free Trial includes up to 50 requests.
The WHOIS Data API provides essential information about internet domains, including registration status (available or taken), creation date, last update date, and other attributes related to the domain's lifecycle.
The API returns structured responses in JSON format, making it easy to integrate and utilize the data in various applications and systems.
The API can be used for verifying domain availability for web projects, conducting cybersecurity assessments by identifying suspicious domains, and analyzing market trends in domain acquisitions.
The API's output includes fields such as domain registration status, creation date, last update date, and additional attributes that provide insights into the domain's history and activity.
The API is designed for simplicity and scalability, allowing users to execute massive queries efficiently. It can be integrated into internal systems, monitoring applications, or domain management platforms to enhance digital asset management.
To obtain your API key, first sign in to your account and navigate to the API you want to use. From the API's Pricing section, choose a plan and complete the subscription process. Once subscribed, return to the API page and you will see your API Access Key displayed at the top of the documentation page. You can use this key to authenticate your requests.
You can’t switch APIs during the free trial. If you subscribe to a different API, your trial will end and the new subscription will start as a paid plan.
The free trial lasts for 7 days and allows you to make up to 50 API requests.
No, the free trial is available only once, so we recommend using it on the API that interests you the most. Most of our APIs offer a free trial, but some may not include this option.
Yes. If the API offers a free trial, you will see a "Free 7-Day Trial" option in its Pricing section. The trial lasts for 7 days and allows up to 50 API requests, enabling you to evaluate the API before subscribing to a paid plan.
Zyla API Hub is like a big store for APIs, where you can find thousands of them all in one place. We also offer dedicated support and real-time monitoring of all APIs. Once you sign up, you can pick and choose which APIs you want to use. Just remember, each API needs its own subscription. But if you subscribe to multiple ones, you'll use the same key for all of them, making things easier for you.
You can monitor your API usage through the response headers included with every request:
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