How to Look Up an IP & Detect VPN/Proxy/Bot Traffic

Not every visit comes from a real user. Traffic from VPN, proxy, datacenter or Tor is often a sign of bots or fraudulent clicks — especially costly if you run paid ads. This guide shows how to look up an IP and spot suspicious traffic.

Why classify IPs?

Every IP address belongs to a network type:

• Residential: real users via consumer ISPs.
• Datacenter: servers, often bots or crawlers.
• VPN/Proxy: hides the real location — higher fraud rate.
• Tor: fully anonymous — very suspicious.

How to look up an IP

Look it up now: Free IP Checker — enter an IP (or click "Use my IP") to see type, country, ISP and risk score.

The tool returns the IP type, network (ISP), ASN and a 0–100 risk score. The higher the score, the more suspicious.

Signs of invalid traffic

• Many clicks from the same datacenter range.
• An unusually high VPN/proxy rate.
• Bursts of clicks in a short time from the same IP.

From manual lookup to automatic blocking

Looking up IPs one by one is fine for investigation. But to protect your ad budget, you need to automatically score every click and block bad IPs in bulk.

ClickSentinel does this automatically when you embed the tracking script: it scores every click's quality, converts it to wasted ad spend, and exports an IP blocklist for Google Ads, Cloudflare or .htaccess. Sign up free to start.

Conclusion

Classifying IPs is the first step to understanding traffic quality. Use the IP Checker for quick investigation, and turn on automatic scoring when you want to protect your ad budget systematically.