Crate gossan_subdomain 

Subdomain discovery — 80+ concurrent sources + DNS bruteforce + permutation engine.

Sources (no API key): crt.sh, CertSpotter, Wayback Machine, HackerTarget, RapidDNS, AlienVault OTX, Urlscan.io, CommonCrawl, DNSdumpster, Anubis, BufferOver, Robtex, DNSRepo, and 30+ more. Sources (API key): VirusTotal, SecurityTrails, Shodan, Censys, BinaryEdge, FullHunt, GitHub, Chaos, Bevigil, FOFA, Hunter.io, Netlas, ZoomEye, C99, Quake, ThreatBook, IntelX, LeakIX, WhoisXML, and 15+ more.

Every confirmed target is emitted via input.emit_target() immediately so the port scanner can start while subdomain discovery is still running.

Modules

dedup

Domain deduplication with normalization.

sources

Subdomain source trait and registry.

wildcard

Wildcard DNS detection.

Structs

SubdomainScanner

Multi-source subdomain enumeration and brute-force scanner.