Real-Time Proxy Detection

Real-time proxy detection is a critical tool for online fraud prevention, helping websites and services verify users are who they say they are. This can help reduce risk, improve compliance, and lower the cost of fraud. Fraudsters and cybercriminals are constantly finding ways to evade detection tools, and proxy detection can be an effective method of flagging suspicious behavior.

There are a number of different ways to detect proxy use, including comparing the operating system advertised by the user’s browser with the actual operating system used by the device. Other indicators include ping tests and latency checks. Proxies that spoof the user agent often leave open ports, such as port 22 (SSH), 3128 (HTTP), or 1080 (WebRTC). By detecting these patterns, it’s possible to identify a proxy connection.

Preventing Proxies Online: Tools and Best Practices

Modern security systems also monitor user traffic patterns to spot anomalies. Rapid page loads and repetitive patterns raise suspicions that a user is using a proxy. Additionally, if an IP address is associated with one geographic location but the device language, time zone, or browser settings suggest another, this may indicate that a user is attempting to bypass geo-restrictions.

Adding ipXapi’s proxy checker API to your service can help you identify risky connections in real-time. Our advanced proxy detection technology uses a combination of machine learning algorithms and heuristics to provide best-in-class results. We provide additional details about each connection such as the real IP address, proxy server name, and whether it is a VPN or Tor exit node.