What is ShieldLabs?

ShieldLabs is a fraud detection and prevention platform for web apps. It turns anonymous traffic into a persistent visitor identity and a 0–100 risk score built from 300+ device, network, and browser signals. Teams use it to stop multi-accounting, account sharing, account takeover, promo abuse, and ad fraud before they cost money.

How to use ShieldLabs?

1) Create an account and get 5,000 free identifications. 2) Install a single JavaScript snippet on your site (about 5 minutes, no backend setup). 3) Review your traffic quality score and per-visit risk signals. 4) Act on risk scores and signals in your backend via the API and webhooks to block or challenge risky users.

Core features of ShieldLabs

Persistent visitor identification across cleared cookies, incognito, and rotated IPs
Explainable 0–100 risk scoring built from 300+ device, network, and browser signals
Risk signal detection: VPN, proxy, Tor, datacenter IP, anti-detect browser, automation
High-Risk Events: multi-accounting, account sharing, account takeover, impossible travel
Traffic analytics with per-channel, referrer, and UTM risk breakdown
Real-time API and webhooks for signup, login, and checkout flows
Device intelligence with 99.9% identification accuracy