WHOIS Data API API ID: 10593

Provides reliable WHOIS data, verifying domain availability, registration dates, and latest updates for analysis, security, and digital management.
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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.

API Documentation

Endpoints


Provides WHOIS domain data, including availability, registration and renewal dates, useful for validation, security, analysis, and monitoring.



                                                                            
POST https://zylalabs.com/api/10593/whois+data+api/20154/whois+data
                                                                            
                                                                        

WHOIS Data - Endpoint Features

Object Description
Request Body [Required] Json

Free test requests remaining: 3 of 3.


INPUT PARAMETERS


API EXAMPLE RESPONSE

{"domain":"amazon.com","taken":true,"register_date":"1994-11-01T05:00:00Z","last_update":"2025-07-31T17:49:55Z"}

WHOIS Data - CODE SNIPPETS


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"
}'

    

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 WHOIS Data API simply include your bearer token in the Authorization header.
Headers
Header Description
Authorization [Required] Should be Bearer access_key. See "Your API Access Key" above when you are subscribed.

Simple Transparent Pricing

No long-term commitment. Upgrade, downgrade, or cancel anytime. Free Trial includes up to 50 requests.

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WHOIS Data API FAQs

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.

General FAQs

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.

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Additionally, if you already have an active subscription in any of these currencies (USD, EUR, CAD, AUD, GBP), that currency will remain for subsequent subscriptions. You can change the currency at any time as long as you don't have any active subscriptions.
The local currency shown on the pricing page is based on the country of your IP address and is provided for reference only. The actual prices are in USD (United States Dollar). When you make a payment, the charge will appear on your card statement in USD, even if you see the equivalent amount in your local currency on our website. This means you cannot pay directly with your local currency.
Occasionally, a bank may decline the charge due to its fraud protection settings. We suggest reaching out to your bank initially to check if they are blocking our charges. Also, you can access the Billing Portal and change the card associated to make the payment. If these does not work and you need further assistance, please contact our team at [email protected]
Prices are determined by a recurring monthly or yearly subscription, depending on the chosen plan.
API calls are deducted from your plan based on successful requests. Each plan comes with a specific number of calls that you can make per month. Only successful calls, indicated by a Status 200 response, will be counted against your total. This ensures that failed or incomplete requests do not impact your monthly quota.
Zyla API Hub works on a recurring monthly subscription system. Your billing cycle will start the day you purchase one of the paid plans, and it will renew the same day of the next month. So be aware to cancel your subscription beforehand if you want to avoid future charges.
To upgrade your current subscription plan, simply go to the pricing page of the API and select the plan you want to upgrade to. The upgrade will be instant, allowing you to immediately enjoy the features of the new plan. Please note that any remaining calls from your previous plan will not be carried over to the new plan, so be aware of this when upgrading. You will be charged the full amount of the new plan.
To check how many API calls you have left for the current month, refer to the 'X-Zyla-API-Calls-Monthly-Remaining' field in the response header. For example, if your plan allows 1,000 requests per month and you've used 100, this field in the response header will indicate 900 remaining calls.

You can monitor your API usage through the response headers included with every request:

x-zyla-api-calls-monthly-used: Shows the total number of API requests you have used during the current billing period.
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After 7 days, you will be charged the full amount for the plan you were subscribed to during the trial. Therefore, it's important to cancel before the trial period ends. Refund requests for forgetting to cancel on time are not accepted.
When you subscribe to an API free trial, you can make up to 50 API calls. If you wish to make additional API calls beyond this limit, the API will prompt you to perform an "Start Your Paid Plan." You can find the "Start Your Paid Plan" button in your profile under Subscription -> Choose the API you are subscribed to -> Pricing tab.
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 Service Level
100%
 Response Time
1,385ms

Category:


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