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Paywall Abuse Prevention: Protect Access and Reading Limits
Prevent paywall abuse with server-side entitlements, safe caching and persistent reading limits. Separate content leaks from account sharing.
ShieldLabs Blog
Learn about fraud detection and prevention, device intelligence, bot detection and traffic risk scoring.
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How to identify anonymous traffic and visitors
How to identify anonymous traffic and recognize returning visitors hidden behind VPNs, proxies, Tor, Private Relay, and anti-detect browsers.
How to detect Tor traffic without blocking real users
Detecting Tor traffic is easy because exit nodes are public. The hard part is acting on it without blocking real users. How web detection actually works.
Will iCloud Private Relay and Chrome IP Protection break your fraud detection?
What iCloud Private Relay and Chrome IP Protection actually change for fraud detection: what degrades, what survives, and why masking is not evasion.
How to prevent friendly fraud with device evidence
Friendly fraud is when a real customer disputes a purchase they made. How it works, why it is hard to prove, and how device evidence helps you fight it.
What is WebGL fingerprinting? How the GPU gives a device away
WebGL fingerprinting identifies a device by how its GPU renders 3D graphics. How it works, what it reveals, and how it differs from canvas.
What is TLS fingerprinting? How JA3 and JA4 identify a client
TLS fingerprinting identifies the software behind a connection from its TLS handshake. How it works, what JA3 and JA4 are, and what it reveals.
What is font fingerprinting? How your installed fonts identify you
Font fingerprinting identifies a device by which fonts are installed, read from how text renders. How it works, what it reveals, and how stable it is.
What is audio fingerprinting? The browser technique, explained
Audio fingerprinting identifies a device by how it processes a sound signal in the browser. How it works, what it reveals, and how stable it is.
How to prevent multi-accounting and stop fraud
How to prevent multi-accounting: detect one person operating many accounts, why IP-based detection fails, and how ready detection stops it.
Impossible travel detection: reading the device behind the location
Impossible travel detection flags an account logging in from two far-apart places. Why velocity alone over-fires on VPNs, and how the device fixes it.
Account takeover detection for web apps: the signal layer at login
How to detect account takeover at login: the device and network signals that flag a suspicious login, why MFA alone misses them, and where the gap is.
What is WebRTC fingerprinting? How it reveals a real IP behind a VPN
WebRTC fingerprinting uses a browser's real-time connection setup to expose network data, including a local or real IP behind a VPN. How it works.