WHOIS API for Complete Domain Intelligence
{
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}Complete Domain Intelligence for Security & Brand Protection
Join 15,000+ companies monitoring 10M+ domains daily for availability, ownership changes, and expiration alerts with 1500+ TLD coverage.
✅ 1500+ TLDs covered • ✅ Bulk lookups • ✅ Expiry monitoring • ✅ Free 500 lookups/month
Why Security Teams Choose Our WHOIS API
🔍 Complete WHOIS Data
Access registrant, admin, tech contacts, nameservers, creation dates, and expiry for 1500+ TLDs. Real-time data from all major registries.
1500+ TLD coverage🎯 Domain Availability Check
Instantly check if domains are available across multiple TLDs. Perfect for brand protection and domain portfolio management.
Check 100 TLDs at once📅 Expiration Monitoring
Never lose a domain again. Get alerts 90, 60, 30, and 7 days before expiry. Monitor competitor domains for acquisition opportunities.
Save $1000s on lost domains🔄 Ownership Change Detection
Track when domains change hands. Monitor brand abuse, detect phishing attempts, and watch competitor acquisitions.
Daily change detection📊 Bulk Domain Lookups
Process thousands of domains via CSV or API. Export results for analysis. Perfect for portfolio audits and competitive research.
10K domains/minute🏢 Registrar Intelligence
Identify registrars, resellers, and hosting providers. Track domain transfers and identify patterns in fraudulent registrations.
5000+ registrars tracked⚡ Historical WHOIS Data
Access 10+ years of WHOIS history. Track ownership changes, identify previous owners, and investigate domain reputation.
10+ years of history🌍 Global Registry Coverage
Support for ccTLDs, gTLDs, and new TLDs. Direct registry connections ensure accurate, real-time data.
All global registries🚫 Brand Protection
Monitor variations of your brand across TLDs. Detect typosquatting, phishing, and trademark infringement automatically.
Block 90% of brand abuse🔒 Privacy & GDPR Compliant
Handle redacted WHOIS data properly. GDPR, CCPA compliant. Access available data while respecting privacy regulations.
100% compliant📈 Domain Valuation Data
Get estimated values based on length, keywords, TLD, and history. Perfect for domain investors and acquisitions.
AI-powered valuations🎯 Reverse WHOIS Search
Find all domains owned by an email, name, or organization. Uncover domain portfolios and hidden connections.
Search 500M+ domains🚀 5-Minute Integration
RESTful API with SDKs for all major languages. Simple JSON responses with comprehensive documentation.
Live in 5 minutes🤝 Expert Support
Domain experts available 24/7. Help with complex queries, bulk operations, and custom monitoring solutions.
15-min response💎 Free Forever Tier
Start with 500 lookups monthly, forever free. No credit card required. Scale up from $14.99/month.
500 free/monthReady to Monitor Your Domain Portfolio?
Start with 500 free WHOIS lookups per month
Scale Your Business with Enterprise Solutions
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Enterprise Solution
For teams that need advanced features
Custom pricing based on your needs
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No credit card required
Accepted Payment Methods
Special Pricing Available
We offer custom pricing for bulk usage, open-source projects, enterprises, non-profits, educational institutions, teachers, and students.
What Developers Say
Trusted by thousands of developers worldwide
Alex Thompson
Brand Protection Manager
Nike
"Caught 200+ trademark infringement attempts this quarter. The ownership change detection helped us acquire key domains before competitors. Saved our brand millions."
Maria Santos
Security Analyst
Cloudflare
"The phishing detection capabilities are incredible. We identify malicious domains using our brand within hours of registration. Essential for cybersecurity teams."
Kevin Park
Domain Portfolio Manager
GoDaddy
"Managing 50K+ domains across 1500+ TLDs. The expiration monitoring prevented us from losing $2M worth of premium domains. ROI paid for itself in the first month."
Sarah Johnson
IT Director
Microsoft
"The reverse WHOIS search uncovered hidden competitor portfolios. We discovered acquisition opportunities worth $500K+ using their relationship mapping."
Carlos Rodriguez
Fraud Prevention Lead
PayPal
"Historical WHOIS data helps us track fraudulent patterns across years. The registrar intelligence identifies suspicious domain clusters before they become threats."
Lisa Chen
Legal Counsel
Apple
"The bulk processing capabilities streamlined our trademark enforcement. Processing 10K domains in minutes instead of days - our legal team loves the efficiency."
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