The Proxy Detection APIThe Proxy Detection API

Proxies and VPNs allow malicious actors to hide their identity, which makes them an especially dangerous threat. It’s essential to know if someone is using one, and the proxy detection API provides that information for you.

Our proxy checker uses the most advanced proxy detection API scoring and detection algorithms to identify risky connections. It is designed to seamlessly integrate into onboarding, authentication, and risk assessment flows to detect suspicious behavior and stop fraudsters in their tracks. This includes e-commerce, fintech, and ad tech fraud, as well as account takeovers, phishing attacks, and other common forms of online fraud.

Easily detect DNS proxies, residential proxies, and Tor exit nodes with the proxy detection API. The lookup also detects hosting providers, data centers, and servers to give you additional insight into the type of connection. With this knowledge, you can decide whether or not to allow a user’s connection based on their overall reputation score.

Best Proxy Checker Tools to Detect Anonymous and Risky IPs

You can customize the proxy detection API by setting a variety of parameters. The strictness parameter lets you control how in-depth the query should be. A higher value takes longer to process, but a lower value reduces false-positives. The public_access_pair parameter lets you bypass the proxy detection for users from research institutions, schools, and some corporations.

The active_tests and passive_tests settings let you decide which tests to run, and whether or not the results should be passed on to your application. Active tests require JavaScript to run, while passive tests do not.