Multi-source IP reputation with one combined authority score (0-100). Polls four independent reputation sources in parallel and blends them: AbuseIPDB (crowd-sourced abuse confidence), abuse.ch threat-lists (Feodo botnet C2 + ThreatFox + Spamhaus DROP + Tor exit nodes), blocklist.de (fail2ban attack-report network), and StopForumSpam. Returns combinedScore, a verdict (clean / low / suspicious / malicious), which sources flagged it, per-source opinions (score + weight + detail), and enrichment (ISP, usage type, country, ASN, Tor). An authoritative threat-list hit (botnet/malware/hijacked netblock) hard-floors the verdict at malicious. Per-source isolation: a down feed degrades that opinion only. The one-call answer for 'should I trust this IP?' instead of trusting a single feed.