Live Coverage across every dataset
VolumeCoveragePrice
Company Database
657.8M+88%$9,999
Email Database
1.29B+68%$4,999
Sub-domains
4.56B+91%$199
Domains by Category
1.85B+97%$999
Active Domains WHOIS Database
315.0M+79%$2,999
Active Domains (no WHOIS)
315.0M+79%$99
robots.txt Database
232.2M+81%$99
SSL Certificates
206.2M+72%$499
Web Server Database
147.9M+67%$299
Status Code Database
118.6M+98%$99
MX Records
109.6M+81%$299
A Records
114.8M+40%$99
TXT Records
59.8M+81%$299
CNAME Records
57.6M+68%$299
CMS Database
35.3M+56%$299
AAAA Records
28.6M+78%$99
IP Address Ranges
329.2K+71%$99
ASN Registry
120.7K+92%$299
Blacklisted Domains
933.7K+91%$299
Countries
260+100%$299
Live numbers, refreshed on every visit
5.40B
WHOIS Records
Across every tracked TLD
4,198
TLDs Tracked
From .com to .zw — every TLD
3,671
Registrars
All ICANN-accredited
260
Countries
Global ccTLD coverage
57
Fields per Record
Full WHOIS schema delivered
42 yrs
1985
Archive Since
Deepest historical archive
19 databases. One platform.
Explore every dataset
From company and email records to SSL certs, DNS, and domain rankings — every database we track, browsable and exportable.
Company Database
Search global business registries by name or domain.
Email Database
Registrant emails sourced from WHOIS records.
Active Domains Database
Confirmed-live domains, verified and re-checked.
Domains by Category
Browse every domain by business category.
Domains by Country
Every country-detection signal, side by side.
Subdomains Database
The most common subdomain prefixes, ranked.
Blacklisted Domains
Domains flagged across major blacklist sources.
Top Ranked Domains
Our curated MXY / WDC domain authority leaderboard.
SSL Certificate Database
TLS certs by issuer, DV/OV/EV type, and cipher.
robots.txt Database
Crawlability status by domain.
Status Code Database
Live HTTP status code per domain.
Web Server Database
nginx, Apache, LiteSpeed & more, by domain.
CMS Database
WordPress, Shopify, Wix & more, by domain.
IP Address Database
IPv4 & IPv6 lookup by domain.
MX Database
Domains grouped by mail server.
TXT Records Database
Top DNS TXT record patterns.
ASN Database
Autonomous System Number lookup.
A / AAAA Database
IPv4 & IPv6 DNS record lookup.
CNAME Database
CNAME DNS records by domain.
Four ways to access. One platform.
Pick your access pattern
From a single lookup to the entire global database. Mix and match across your team — billing stays in one place.
Lookups
Search single domains, phones, emails, names, companies, keywords, or DNS records across 5.40B WHOIS entries.
7 lookup typesDaily Feeds
8 real-time feeds — newly registered, updated, expired, expiring, dropped, deleted, proxy-removed, free domains.
8 daily feedsDatabases
Buy the complete WHOIS database or filter by country, TLD, or registrar — delivered as CSV, JSON, or SQL.
5.40B recordsAPI Credits
Pay-as-you-go API access. 1,000 free credits every month, every account. Perfect for variable workloads.
Free 1,000 credits/moTrusted by leading teams worldwide
Trusted by 25,000+ Companies
Security teams, universities, public agencies, and research groups rely on WhoisDataCenter for domain intelligence.
Cyber Security & Technology
Government & Public Sector
Educational Institutions
Corporate & Business Services
Media & Communication
Research & Development
From sign-up to first dataset
Live in 10 minutes. No procurement loop.
1
Sign up free
Mobile number, one SMS code, then your details. Get 1,000 free API credits every month. No credit card required to evaluate.
~1 minute2
Pick your access
Single lookups, daily feeds, full database, or pay-as-you-go API credits. Mix and match across plans.
2 minutes3
Pull or download
Access via web dashboard, REST API, or scheduled S3 delivery. CSV, JSON, XML, and SQL formats supported.
Instant4
Scale when ready
Switch tiers any time. Enterprise plans add NDA, SLA, dedicated manager, and custom volume contracts.
AnytimeBuilt for these teams
From solo founders to Fortune 500
Six core workflows. Hundreds of variations. The same data backbone powers them all.
Governments
Support law enforcement, regulatory compliance, and national cyber-defence with authoritative WHOIS data across 4,198 TLDs and 260 countries.
Law enforcementComplianceNational security
AI Companies
Track domain registrations linked to AI ventures, monitor competitor footprints, and enrich LLM training datasets with structured WHOIS signals.
LLM dataAI startupsDomain signals
Cyber Security
Monitor newly-registered and dropped domains for phishing kit deployments, C2 infrastructure, and malicious actor re-registrations in real time.
Threat huntingC2 detectionSOC feeds
Threat Intelligence
Identify malicious infrastructure, track threat actor domains, and enrich SIEM feeds with WHOIS context for incident response.
SIEMPhishingMalware C2
Developers & Integrators
Build domain analytics, registrar comparison tools, or DNS monitoring services on top of our 12-language API client suite.
APISDKsWebhooks
Research Organizations
Access 42+ years of historical WHOIS data for longitudinal studies on domain ecosystem trends, registrar behaviour, and internet governance.
AcademicHistorical dataPolicy research
Drop-Catching
Real-time expiring/dropped domain feeds for premium domain investors. Pre-catch backorders with sub-2-hour refresh windows.
ExpiringAuctionsBackorder
Investigations & OSINT
Reverse WHOIS by registrant name, email, phone, or company to map related domain portfolios across 5.40B records.
OSINTForensicsDue diligence
Brand Protection
Detect typosquatting, lookalike domains, and trademark infringement. Monitor newly-registered feeds for your brand variants.
TyposquattingTrademarkPhishing
Sample Records
What's inside every record
Browse a live preview of sample records — every WHOIS dataset we deliver carries the same 57-field schema across all 5.40B+ records.
Simple, predictable pricing
Every plan unlocks all 9 products
No tier-based feature gating. No surprise overages. Pick by volume, scale when ready.
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Developer Access
API & Code Samples
Pull the Complete Database registrar database programmatically — pick your language and format.
EndpointGET
https://api.whoisdatacenter.com/v4/whois?date=2026-04-25# Complete Database lookup → JSON curl -X GET "https://api.whoisdatacenter.com/v4/whois?date=2026-04-25" \ -H "Authorization: Bearer YOUR_API_KEY" \ -H "Accept: application/json"
Customer stories
Why teams switch and stay
“Switched our reverse-WHOIS pipeline from a competitor. The 57-field schema and 2-hour feed latency cut our brand-protection team's response time in half.”
S
Sarah Chen
Security Lead · Fortune 500 retail
“The API credit model is a perfect fit for variable workloads. Bought 1M credits 18 months ago — still using them. Zero pressure to commit to a tier.”
M
Marcus Petrov
CTO · OSINT analytics startup
“Drop-catching at scale needs sub-2-hour feed refresh. WDC's expiring-domains feed is the only one that consistently delivers. Won 47 premium domains last quarter.”
R
Raj Mehta
Founder · Domain investment fund
Compliance & reliability — every plan
ICANN-Accredited
Direct registry feeds, fully compliant
GDPR Compliant
EU data protection standards met
NDA + SLA Available
Enterprise-grade legal terms
Archive Since 1985
42+ years of historical data
99.95% Uptime
API + dashboard reliability
10,000+ Customers
Trusted by domain pros worldwide
1,000 free credits/mo · No credit card required
Start exploring WhoisDataCenter today
Get instant access to 5.40B WHOIS records, 8 daily feeds, full database delivery, and a complete REST API — all on one platform.
ICANN-AccreditedGDPR CompliantNDA + SLA AvailableCancel Anytime