Get free access to human-verified brand domain data. Reduce false positives in your threat intelligence feeds and make confident security decisions.
We know you're doing critical work reviewing thousands of cases daily. Reputable Domains gives you an additional data point — a verified brand reference to help you make more informed decisions when investigating domains.
Every domain is manually verified with brand ownership documentation. This doesn't replace your analysis — it supplements it with verified ownership information to help your investigations.
Access the latest data instantly. New verifications appear in real-time across all integration methods.
No costs, no limits, no hidden fees. Use as an additional reference during your investigations to make more informed decisions while protecting legitimate businesses.
Choose the integration method that best fits your workflow
Lightning-fast domain lookups with sub-5ms response times. Perfect for real-time threat analysis.
Download the complete list for offline analysis, SIEM integration, or bulk processing.
MCP protocol support for Claude and other AI assistants. Let AI help with your threat analysis.
Whether you're protecting networks, analyzing threats, or managing abuse reports
Reduce false positives in your threat feeds and blocklists
Verify domains during incident response and investigations
Check legitimacy before taking down reported domains
Let Claude check domains automatically during threat research
Create your free security team account. No credit card required, no hidden costs.
Quick verification to ensure you're a legitimate security organization. Usually approved within 24 hours.
Generate API keys, download CSV, or set up MCP. Start reducing false positives immediately.
Join security teams worldwide using verified brand data to make better decisions.