Subdomains Database Download | WhoisXML API

Get access to the biggest Subdomains Database

We provide a large subdomains repository with 2.3+ billion records in the exhaustive, unified and well-parsed CSV format.

Request database
Subdomains Data Feed
2.3+ billionSubdomains
2,864+TLDs tracking
10+ yearsof data crawling

The database comes in two forms

  • Full subdomains database

    A full database of all the subdomains for a given date in unified and consistent CSV format.

  • Weekly incremental subdomains database

    Changes to the full subdomains database including subdomains that were discovered during the previous week.

Benefits

  • The comprehensive and coherent database covers more TLDs than any other

    We offer the most recently updated domain database for more than 2,864 TLDs and ccTLDs.

  • Get access to exhaustive and properly parsed data

    Obtain an up-to-date Subdomain database archive download as Comma Separated Values (.CSV) format.

  • Transform threat intelligence into actionable prevention and mitigation steps

    The manual parsing of raw passive subdomains data can be a tedious and error-prone job. Skip the legwork with Subdomains Database Download, and work with the data offline at your own convenience.

Practical usage

Improve your cybersecurity

Improve your cybersecurity

  • Determine the attack surface of the target organization.
  • Perform a quick self-assessment to identify any potential weaknesses, outdated software, or misconfigurations.
  • Finding subdomains is an important step in the information-gathering phase of a penetration test. Find systems that are less protected and more vulnerable to attacks.
Marketing research

Marketing research

  • Gain insights into competitors' subdomains.
  • Based on the lists of competitors' subdomains you can research their web infrastructure to identify possible scenarios for the development of the competition and get an advantage.

Data Integration

  • Accelerate development and improve your own products by implementing our comprehensive and well-parsed subdomains database in unified and consistent CSV format.
Data Integration
Subdomains Database | WhoisXML API

Still not sure?

To apply for access to Subdomains Database, please contact us. Our customer support team will respond to your request shortly.

Subdomains Database | WhoisXML API

API integration available

Learn more about API integration

Trusted by
the smartest
companies

You may be interested

IP Geolocation
IP Geolocation

Find out the exact physical location of any IP address, email or domain name.

Learn more
Newly Registered Domains
Newly Registered Domains

Keep track of the best business opportunities online.

Learn more
Typosquatting Data Feed
Typosquatting Data Feed

Easily detect all typosquatting domain names as soon as they are registered each day.

Learn more
Domain Availability
Domain Availability

The most accurate domain availability checker offered on the market.

Learn more
Website Categorization
Website Categorization

Define website category of the given domain.

Learn more
Domain Reputation API
Domain Reputation API

Assess the domain's or IP addresses reputation and risk profile with a simple score based on a comprehensive...

Learn more
DNS Lookup Services
DNS Lookup Services

Identify who is hosting a particular domain name or website.

Learn more
Website Contacts
Website Contacts

Get full contacts data of the given domain.

Learn more
Threat Intelligence Data Feeds
Threat Intelligence Data Feeds

Get the most relevant data to be ahead of emerging security threats.

Learn more
Domain Research Suite
Domain Research Suite

Enhance your domain research toolkit by our enterprise-grade web-based solution that helps you in searching...

Learn more
Subdomains Lookup
Subdomains Lookup

Discover subdomains related to the target domain name.

Learn more
All Registered Domains
All Registered Domains

Get a complete daily list of all the registered domains and zone files.

Learn more
Screenshot Service
Screenshot Service

Instantly get a screenshot of any web page.

Learn more
Reverse WHOIS
Reverse WHOIS

Find connections between various domains, individuals and organizations.

Learn more
Reverse NS
Reverse NS

Find all domains that use the same name server.

Learn more
Real-time Domain Registration
Real-time Domain Registration

Get data feeds of new registered domains along with their WHOIS data generated in real time.

Learn more
WHOIS Search
WHOIS Search

Get well-parsed and normalized WHOIS information for any domain name, IP address or email.

Learn more
IP Netblocks
IP Netblocks

Find out which IP range the particular IP belongs to.

Learn more
Reverse IP/DNS
Reverse IP/DNS

Find relations like ownership between hostnames and IPs.

Learn more
US Internet Retailers Database
US Internet Retailers Database

Get access to the biggest US Internet Retailers Database.

Learn more
Brand Alert
Brand Alert

Monitor exact matches, variations and common misspellings of your brand name & trademarks.

Learn more
Email Verification
Email Verification

Ensure the validity and quality of any email address.

Learn more
Registrant Alert
Registrant Alert

Find out which domains were added or dropped by registrants, with given search criteria.

Learn more
Reverse MX
Reverse MX

Reveal all the domains that use the same mail server.

Learn more
WHOIS Database Download
WHOIS Database Download

We provide complete and relevant domain WHOIS data which can be customized and easily integrated as per your business needs.

Learn more
Have questions?

We are here to listen. For a quick response, please select your request type or check our Contact us page for more information. By submitting a request, you agree to our Terms of Service and Privacy Policy.

Or shoot us an email to