ShieldLabs

ShieldLabs is fraud detection and prevention with traffic quality scoring for websites and web apps. It detects risky users under any masking and stops abuse of the product: multi-accounting, account sharing, account takeover and impossible travel are detected directly, out of the box.

A JavaScript snippet collects 300+ device and network signals on every visit and cross-checks them, exposing VPNs, proxies, Tor, anti-detect browsers, bots and AI agents. Each visitor, user, device and IP address gets a 0-100 risk score with the named signals behind it, with 99.9% identification accuracy. Results arrive through the API and webhooks. Setup takes about five minutes, and the free plan includes 5,000 identifications.