The Domain Whois API is a powerful tool that allows you to obtain detailed information about any domain registered on the internet. When you enter a domain, the API returns a structured response with key data such as availability (whether it is registered or not), its extension or TLD (such as .com, .org, .net), and the current status of the domain (for example, clientDeleteProhibited or clientTransferProhibited). It also includes registrar data, such as its name, URL, WHOIS server, and contact details for abuse reports.
The API provides important dates such as the domain creation date, last update date, and expiration date, along with a counter of days remaining until expiration. In addition, active nameservers are listed, making it easy to identify the current DNS provider (e.g., Cloudflare, GoDaddy, etc.).
The DNSSEC status, if enabled, and the DS data necessary to validate the security of the domain are also included. The response includes public WHOIS content, including legal texts, WHOIS service usage policies, and other data from the VeriSign database.
The API has been designed for use in domain monitoring platforms, availability verification, web infrastructure analysis, cybersecurity research, and digital brand management solutions.
To use this endpoint, you must specify a domain in the parameter.
{"domain":"google.com","keyword":"google","tld":"com","availability":"registered","status":["clientDeleteProhibited","clientTransferProhibited","clientUpdateProhibited","serverDeleteProhibited","serverTransferProhibited","serverUpdateProhibited"],"ns":["ns1.google.com","ns2.google.com","ns3.google.com","ns4.google.com"],"dates":{"created":"1997-09-15T04:00:00.000Z","updated":"2019-09-09T15:39:04.000Z","expiry":"2028-09-14T04:00:00.000Z","expiryDays":1147},"registrar":{"url":"http://www.markmonitor.com","name":"MarkMonitor Inc.","whois":"whois.markmonitor.com"},"contacts":{"registrant":{"name":null,"organization":null,"email":null,"phone":null,"street":null,"city":null,"postalCode":null,"state":null,"country":null},"admin":{"name":null,"organization":null,"email":null,"phone":null,"street":null,"city":null,"postalCode":null,"state":null,"country":null},"tech":{"name":null,"organization":null,"email":null,"phone":null,"street":null,"city":null,"postalCode":null,"state":null,"country":null},"billing":{"name":null,"organization":null,"email":null,"phone":null,"street":null,"city":null,"postalCode":null,"state":null,"country":null}},"whois":{"whois.verisign-grs.com":{"Domain Status":["clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited","clientTransferProhibited https://icann.org/epp#clientTransferProhibited","clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited","serverDeleteProhibited https://icann.org/epp#serverDeleteProhibited","serverTransferProhibited https://icann.org/epp#serverTransferProhibited","serverUpdateProhibited https://icann.org/epp#serverUpdateProhibited"],"Name Server":["NS1.GOOGLE.COM","NS2.GOOGLE.COM","NS3.GOOGLE.COM","NS4.GOOGLE.COM"],"text":["For more information on Whois status codes, please visit https://icann.org/epp","","NOTICE: The expiration date displayed in this record is the date the","registrar's sponsorship of the domain name registration in the registry is","currently set to expire. This date does not necessarily reflect the expiration","date of the domain name registrant's agreement with the sponsoring","registrar. Users may consult the sponsoring registrar's Whois database to","view the registrar's reported date of expiration for this registration.","","TERMS OF USE: You are not authorized to access or query our Whois","database through the use of electronic processes that are high-volume and","automated except as reasonably necessary to register domain names or","modify existing registrations; the Data in VeriSign Global Registry","Services' (\"VeriSign\") Whois database is provided by VeriSign for","information purposes only, and to assist persons in obtaining information","about or related to a domain name registration record. VeriSign does not","guarantee its accuracy. By submitting a Whois query, you agree to abide","by the following terms of use: You agree that you may use this Data only","for lawful purposes and that under no circumstances will you use this Data","to: (1) allow, enable, or otherwise support the transmission of mass","unsolicited, commercial advertising or solicitations via e-mail, telephone,","or facsimile; or (2) enable high volume, automated, electronic processes","that apply to VeriSign (or its computer systems). The compilation,","repackaging, dissemination or other use of this Data is expressly","prohibited without the prior written consent of VeriSign. You agree not to","use electronic processes that are automated and high-volume to access or","query the Whois database except as reasonably necessary to register","domain names or modify existing registrations. VeriSign reserves the right","to restrict your access to the Whois database in its sole discretion to ensure","operational stability. VeriSign may restrict or terminate your access to the","Whois database for failure to abide by these terms of use. VeriSign","reserves the right to modify these terms at any time.","","The Registry database contains ONLY .COM, .NET, .EDU domains and","Registrars."],"Domain Name":"GOOGLE.COM","Registry Domain ID":"2138514_DOMAIN_COM-VRSN","Registrar WHOIS Server":"whois.markmonitor.com","Registrar URL":"http://www.markmonitor.com","Updated Date":"2019-09-09T15:39:04Z","Created Date":"1997-09-15T04:00:00Z","Expiry Date":"2028-09-14T04:00:00Z","Registrar":"MarkMonitor Inc.","Registrar IANA ID":"292","Registrar Abuse Contact Email":"[email protected]","Registrar Abuse Contact Phone":"+1.2086851750","DNSSEC":"unsigned","URL of the ICANN Whois Inaccuracy Complaint Form":"https://www.icann.org/wicf/",">>> Last update of whois database":"2025-07-25T13:59:00Z <<<"}},"nameservers":["ns1.google.com","ns2.google.com","ns3.google.com","ns4.google.com"],"__notices":["field `ns` is deprecated and will be removed on 2026-01-01, use `nameservers` instead","field `dates.expiryDays` is deprecated and will be removed on 2026-01-01, use `dates.expiry` to infer it"]}
curl --location --request GET 'https://zylalabs.com/api/8686/domain+whois+api/15260/domain+information&domain=Required' --header 'Authorization: Bearer YOUR_API_KEY'
| 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 Domain Whois API returns comprehensive data about a specified domain, including its registration status, creation and expiration dates, registrar details, DNS information, nameservers, and WHOIS content.
Key fields in the response include domain availability, TLD, registrar name and URL, creation date, expiration date, status codes (e.g., clientDeleteProhibited), nameservers, and DNSSEC status.
The response data is structured in a JSON format, with distinct sections for domain status, registrar information, dates, nameservers, and WHOIS content, making it easy to parse and utilize.
The primary parameter for the GET Domain Information endpoint is the domain name itself. Users must specify the domain they wish to query to receive relevant data.
Typical use cases include domain availability checks, monitoring domain status for cybersecurity, analyzing web infrastructure, and managing digital brand assets.
Data accuracy is maintained through regular updates from authoritative WHOIS databases and verification against multiple sources, ensuring reliable and up-to-date information.
Users can expect consistent data patterns, such as structured date formats (YYYY-MM-DD), status codes, and clearly defined fields for registrar and nameserver information, facilitating easy integration.
Users can leverage the returned data for various applications, such as automating domain monitoring, generating reports on domain status, and integrating WHOIS information into web applications for enhanced functionality.
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