Used by marketers, agencies, and developers worldwide
Frequently Asked Questions
Find answers about our domain, WHOIS, and website data - including access, API usage, and plans.
General Questions
WhoisExtractor is a data platform that collects, processes, and delivers domain registration (WHOIS), domain list, and website contact data. We have been operating since 2015, processing over 319 million domain records. Our data is used by marketers, agencies, developers, and researchers for lead generation, competitive research, and business intelligence.
We provide three main datasets: Domains Database (lists of domain names by TLD), WHOIS Database (registration ownership and contact details), and Website Database (emails, phone numbers, and business details scraped from live websites). All datasets are available as daily feeds or full historical archives.
Our daily feeds are updated every 24 hours. We collect newly registered domains, updated WHOIS records, and fresh website data continuously. Full historical archives go back several years and are constantly growing.
Data & Usage
Domains Database contains domain names only - useful for tracking registrations by TLD, volume trends, and availability.
WHOIS Database contains the ownership and contact details behind each domain - registrant name, email, organization, phone number, and registration/expiry dates. This is ideal for outreach to domain owners.
Website Database contains emails, phone numbers, and business details scraped directly from live websites - the richest source for B2B lead generation and marketing campaigns.
WHOIS Database contains the ownership and contact details behind each domain - registrant name, email, organization, phone number, and registration/expiry dates. This is ideal for outreach to domain owners.
Website Database contains emails, phone numbers, and business details scraped directly from live websites - the richest source for B2B lead generation and marketing campaigns.
WHOIS is a public registry of domain name registrations maintained by ICANN and domain registries worldwide. It contains the registrant name, email address, phone number, organization, registration date, expiry date, registrar, and name servers for each registered domain. WhoisExtractor collects and delivers this data in clean, structured CSV format.
The Website Database is built by crawling live websites and extracting publicly available contact information - emails, phone numbers, social media links, business names, and more. Unlike WHOIS, which shows domain ownership, the Website Database shows the actual business operating at the domain. This makes it ideal for lead generation campaigns.
We collect data from multiple verified sources: public WHOIS records via ICANN-compliant lookups, domain zone files from registries, and web crawls of publicly accessible websites. All data collection is performed in accordance with applicable laws and the data sources' terms of service.
Real emails and phone numbers for businesses are available in two places: the Website Database (scraped directly from live websites - best for lead generation) and the WHOIS Database (registrant contact details for domain owners). Both are available on paid plans. The Website Database is the best choice if your goal is B2B outreach and lead generation.
Yes. Our data is widely used for cold email outreach, B2B lead generation, domain investor prospecting, and market research. The Website Database is especially suited for generating targeted contact lists. Please ensure your use complies with applicable laws (CAN-SPAM, GDPR, etc.) and that recipients have a legitimate basis for contact.
Access & Plans
The free plan gives you access to a daily sample of newly registered domains with limited records - enough to evaluate the data quality. Paid plans unlock full daily feeds, historical archives, all TLDs, WHOIS data, Website Database, and API access depending on the tier selected.
No - API access is available on paid plans only. The free plan provides manual CSV downloads. If you need programmatic access for automation or scheduled data pipelines, you will need a paid plan that includes API access.
After purchase you can download data directly from your account dashboard as CSV files (delivered as ZIP archives), or access it automatically via our REST API. Daily feeds are available immediately after registration. Archived datasets are accessible based on your plan.
The Website Database plan is best for lead generation - it provides emails, phone numbers, and business contact details harvested from live websites. If you also want domain ownership/registrant data, combine it with a WHOIS plan. Visit the pricing page to compare plans.
Yes. The Website Database provides emails and phone numbers extracted from live websites. The WHOIS Database also contains registrant emails and phone numbers. Both are available on their respective paid plans. These are real, publicly listed contact details.
Billing & Orders
We accept all major credit and debit cards (Visa, Mastercard, American Express) via Stripe. Additional payment options may be available - please contact support if you need an alternative.
We offer refunds in accordance with our Refund Policy. If you are not satisfied with your purchase, please open a support ticket within 7 days of your order and our team will review your request.
Both options are available depending on the product. Some datasets are sold as one-time purchases for a specific date range or archive, while daily feed plans operate on a subscription basis. Order Details are clearly shown on the pricing page.
Technical & API
After subscribing to an API-enabled plan, you will receive an API key from your dashboard. Make a standard HTTP GET request to
https://get.whoisextractor.com/ with your key as the api query parameter and the product ID (pid). The file downloads immediately. Full documentation with code examples is available on the API documentation page.
Data is delivered as CSV files inside a ZIP archive. Each row is one domain record. CSV files work directly with Excel, Google Sheets, Python (pandas), and database import tools. Only error responses from the API return JSON - successful requests deliver the file directly.
File sizes vary by dataset and date range. A typical daily domain feed CSV is between 50 MB and 500 MB compressed. Full historical archives can be several GB. We recommend downloading to a server or using our API for automated ingestion rather than a personal computer.
Yes. The API and CSV format make it straightforward to integrate with any CRM, database, data pipeline, or marketing tool. We provide documentation and example scripts. If you need a custom integration, our support team can advise.
Still Have Questions?
Our support team responds within 24 hours. We're here to help.