VPN IP & Subnet Blacklist Checker
Constant CAPTCHAs and blocked websites? Test any VPN server IP address against 6 global fraud databases and anti-bot firewalls to verify its trust score.
198.51.100.42
IP is not listed on Spamhaus Zen or Composite Blocking lists.
Threat score is 0. Bypasses Cloudflare Managed Challenge CAPTCHAs.
Clean client score (0.9/1.0). Zero interactive picture puzzles triggered.
IP recognized as clean commercial/residential allocation without fraud flags.
Reputation verified positive. Zero DDoS involvement detected.
IP flagged as hosting datacenter / commercial VPN tunnel interface.
Tip for Frequent CAPTCHAs: If your VPN IP is flagged by MaxMind or Cloudflare, switch your protocol to NordLynx or connect to servers designated as "Obfuscated / Stealth" to inherit clean residential routing.