ShieldLabs is fraud detection and prevention with traffic quality scoring. It stops multi-accounting, account sharing, account takeover, fake signups and ad fraud.
A single JavaScript snippet collects more than 100 device and network signals on every visit and cross-checks them, which exposes deep masking and delivers up to 99% detection accuracy. Returning visitors are recognised across cleared cookies, incognito mode and changed IP addresses, and linked users are detected across accounts, devices and IP addresses.
VPNs, proxies, Tor, Apple Private Relay, datacenter IPs, anti-detect browsers, browser automation, bots and AI agents each come back as a named signal, not one binary flag. Every visitor, user, device and IP gets a risk score. Ready-made patterns cover multi-accounting, account sharing, account takeover and impossible travel, and traffic quality is scored by source, channel and campaign.
Five minutes to integrate. Client and server SDKs, public API, signed webhooks