←Backsubfinder/subfinder0Copy as MarkdownView on GitHub↗13,859 stars·1,565 forks·Go·MIT·0 viewsprojectdiscovery.io↗SubfinderFeaturesWeb Security Tools - Tool for discovering subdomains using passive online sources.Domain Enumeration - Passive subdomain discovery tool for bug bounty and penetration testing.Web Security Testing - Discovers valid subdomains using passive online sources.