Unified & consistent
2,864+
TLDs
300M+
Domains tracked
52K+
Satisfied customers
5 Billion+
Whois records
WHOIS records
  • Our Hosted Whois Web Service provides the registration details, also known as the Whois Record, of a domain name or an IP address.
  • The first 500 Whois API calls are complimentary when you register for a free developer account.
Benefits
  • Get key data points for domains including Registrant name, organization, e-mail address, registration address, registrar information, creation date, expiration date, updated date, domain availability, domain age, and much more.
  • All the Whois information is well parsed and normalized to a consistent format for easy integration with your business processes.
  • The query results with both parsed fields and raw texts are returned in popular XML & JSON format.
  • Real-time Whois data, ensuring that only the most up to date and accurate information is available.
Practical uses
  • Cyber Security researchers use Whois API for investigating & curbing cybercrime.
  • Cyber Security and anti-malware solutions use Whois API to detect spams, malicious websites, intrusions, and other online misbehaviors.
  • Payment processors and banks use Whois API to detect transaction fraud.
  • Domainers use Whois API to check domain names availability and to track domain registration changes.
  • Registries, registrars and domain brokers use Whois API to ensure reliable and secure domain name ownership transfer and management.
  • Brand agents use Whois data to protect their intellectual property and to check potential trademark infringements. They also use Whois searches to scope domain name similarities, duplicates, or copycats.
  • Domain investors use the information gained from Whois searches to learn about their competition and to identify investment opportunities.
  • Law enforcement agencies use Whois API to identify all the connected domains, websites and IP addresses associated with fraudulent activities and criminals.
  • Website owners and managers use Whois API to identify new business and partnership opportunities and to locate potential buyers through the contact details provided in the Whois records.
Try WHOIS API for FREE
Trusted by
the smartest
companies
Code samples for the major languages
Download

                    
Give the API a Try

Input correct domain name

Result for google.com

Parsed domain name: google.com
Domain name extension: .com
Estimated domain age: 7491 day(s)
Contact email: dns-admin@google.com
Created date: Mon Sep 15 1997 11:00:00
Updated date: Wed Feb 21 2018 21:45:07
Registrar name: MarkMonitor, Inc.
Registar Internet Assigned Numbers Authority ID: 292
WHOIS server: whois.markmonitor.com
Domain EEP status codes by ICANN list: clientUpdateProhibited clientTransferProhibited clientDeleteProhibited serverUpdateProhibited serverTransferProhibited serverDeleteProhibited
Custom field name 1: RegistrarContactEmail
Custom field value 1: abusecomplaints@markmonitor.com
Custom field name 2: RegistrarContactPhone
Custom field value 2: +1.2083895740
Custom field name 3: RegistrarURL
Custom field value 3: http://www.markmonitor.com
Domain's registrant
Name: Domain Administrator
Organization: Google LLC
Street: 1600 Amphitheatre Parkway,
City: Mountain View
State: CA
Postal code: 94043
Country: UNITED STATES
Country code: US
Email: dns-admin@google.com
Telephone: 16502530000
Fax: 16502530001
Administrative contact
Name: Domain Administrator
Organization: Google LLC
Street: 1600 Amphitheatre Parkway,
City: Mountain View
State: CA
Postal code: 94043
Country: UNITED STATES
Country code: US
Email: dns-admin@google.com
Telephone: 16502530000
Fax: 16502530001
Technical contact
Name: Domain Administrator
Organization: Google LLC
Street: 1600 Amphitheatre Parkway,
City: Mountain View
State: CA
Postal code: 94043
Country: UNITED STATES
Country code: US
Email: dns-admin@google.com
Telephone: 16502530000
Fax: 16502530001
Report processing dates
Created date: Mon Mar 19 2018 16:31:37
Updated date: Mon Mar 19 2018 16:31:37
Name servers
Host names
ns1.google.com
ns3.google.com
ns2.google.com
ns4.google.com
Registry data
Created date: Mon Sep 15 1997 08:00:00
Updated date: Wed Feb 21 2018 21:36:40
Expires date: Mon Sep 14 2020 07:00:00
Parsed domain name: google.com
Name servers
Host names
ns1.google.com
ns2.google.com
ns3.google.com
ns4.google.com
Domain EEP status codes by ICANN list: clientDeleteProhibited clientTransferProhibited clientUpdateProhibited serverDeleteProhibited serverTransferProhibited serverUpdateProhibited
Report processing dates
Created date: Mon Mar 19 2018 16:31:36
Updated date: Mon Mar 19 2018 16:31:36
Custom field name 1: RegistrarContactEmail
Custom field value 1: abusecomplaints@markmonitor.com
Registrar name: MarkMonitor Inc.
Registar Internet Assigned Numbers Authority ID: 292
Custom field name 2: RegistrarContactPhone
Custom field name 3: RegistrarURL
Custom field value 2: +1.2083895740
Custom field value 3: http://www.markmonitor.com
WHOIS server: whois.markmonitor.com
Try WHOIS API for FREE
Have questions?
support@whoisxmlapi.com
We will get back to you within a day.
WHOIS API, LLC

California
USA

Contact us