Advanced Proxy
Detection API Service

Online frauders hide their IP addresses through Proxies, Tor nodes, & VPN connections to conceal their location and true identity details. IPQ's free proxy detection service can prevent frauders with spoofed IP addresses from accessing critical pages of your site and creating headaches such as credit card fraud & chargebacks, fraudulent accounts, advertising click fraud, evading country specific filters, scraping sensitive content, abusive comments and spam, affiliate marketing fraud, or performing other types of nefarious actions.

IPQ's proxy detection API is the most comprehensive tool online to identify IP address connections with a high probability of malicious intent. This includes IP addresses that are open proxies, anonymous proxies, Tor nodes, VPNs, hosting providers, spammers, criminal networks, malware & spyware, botnets, and other undesirable connections that are highly inclined to engage in malicious activity.

How Does this Proxy Detection Service Work?

IPQ's proxy detection service can be queried via an API lookup or through our user dashboard to instantly reduce fraud. The IP address and other forensic factors of the connection are analyzed to determine if the user is hiding behind a spoofed IP or is attempting to frequently change their device. 19 variables (such as proxy status, organization, time zone, fraud score, VPN status, Tor status, crawler status, etc.) are returned for each proxy API lookup to provide a detailed analysis for each request. IPQ's threat blacklists are actively maintained and updated hourly to include the latest emerging threats from hijacked computers, open proxies, & other sources of malicious connections. We also remove IP addresses from our database that are no longer threats to reduce the chance of a false-positive result which is a significant issue for other proxy detection service providers and can greatly limit legitimate traffic.

Try It Now - Free Test for Proxies & VPNs

What Makes Our Proxy Detection Service Different?

IPQ provides the most accurate proxy detection service in the industry. Through the use of proprietary honeypots, blacklists, and forensic analysis we are able to detect compromised connections and risky users to a significantly higher degree than any other anti-fraud service. We welcome you to test our service as every user is awarded 5,000 free lookups per month and additional lookup queries are the most affordable in the industry. Our goal is to help you prevent fraud, increase ROI, & save you money at the same time!

Fraud Scoring and Proactive Fraud Prevention

The anti-fraud industry has different approaches for dealing with fraud. We believe that the best way to manage fraud is to completely prevent it from happening, rather than review post-analysis reports or get notified after the fraud has been committed. Blocking proxy and VPN connections is a great foundation to proactively prevent fraud but we have found that a deeper approach is more effective. All of our anti-fraud tools now return a real-time "fraud score" so that users with a high fraud score can be instantly detected and flagged for review or redirected away from critical parts of a site like a registration page, payment page, comments section, etc. This results in fewer problems with clients, reduced time spent on cleaning up abuse such as manually finding duplicate users, clearing spam, blocking users, and in general less headaches so you can focus on productive tasks.

Our Proxy Detection API can accept additional information to enhance the "fraud score" accuracy. We recommend passing the user agent (browser), user language, and additional details found on the user dashboard into each API request. This gives us greater insight than just examining an IP address so we can give you the most accurate prediction of fraudulent behavior for each lookup. IPQ's fraud scoring combined with the status of the lookup as a proxy connection, VPN connection, or Tor connection is a proven solution to preventing fraud and abuse.

Features and Benefits

  • Advanced Proxy Detection Service - Also Detect TOR & VPNs
  • 5,000 FREE Proxy Detection API Lookups Per Month
  • Lower Your Chance of Chargebacks, Reversals, & Fraudulent Users
  • Batch Process CSV Files
  • Support for Postback Conversions and Web Callbacks
  • Block Proxies, VPNs, Tor, Bots, & Other Malicious IP Addresses
  • Smart Fraud Scoring & Threat Blocking
  • Adjustable Quality Strictness to Adapt to Your Needs
  • Easy API Lookup Service with Documentation & Example Code
  • Reduce Fraud for Your Sales, Leads, Conversions, Sign Ups, Ad Campaigns, etc.
  • Powerful Reporting - Analyze Your Traffic & Identify Poor Traffic Sources

Who Uses This Service?

  • Advertisers, Ad Networks, Affiliate Marketers, & Affiliate Programs
  • Online Retailers - Online Sales, Sign Ups, & Lead Generation
  • Software, Game, & App Developers
  • SaaS Service Providers
  • Fraud Monitoring & Security Systems
  • and many more companies!
Proxy Detection Service
Block Proxies & VPNs

Block Proxies & VPNs

API Access & Detailed Reports

API Access & Detailed Reports

Mass Check Records

Export Data & Batch Check CSVs

Ready to get started?

Start fighting fraud in minutes!

Sign Up