Persistent carts and preferences: keeping state for logged-out returning visitors
How to keep a returning visitor's cart and preferences across sessions without a login, by recognizing the device with a durable identifier.
Blog / Anonymous traffic
Anonymous traffic
New vs returning visitors: what a good ratio is, and why the number is only as good as your cookies
New vs returning visitors benchmarks, how to compare your site with relevant peers, and why cookie loss can distort the ratio.
How to detect click farms
What a click farm is, how phone farms mass-produce fake installs, signups, and clicks, and how the devices behind that activity cluster back to one operation.
How to detect invalid traffic (IVT): types, causes, and signals
How to detect invalid traffic (IVT): the GIVT vs SIVT split, what causes it, and the signals advertisers use to catch the traffic draining ad budgets.
How website visitors are counted: Google Analytics, Vercel, and ShieldLabs compared
Why your visitor counts never match across tools. How Google Analytics, Vercel, and ShieldLabs each identify a visitor, and which count is closest to the truth.
How to detect ad fraud: types, cost, and the signals that catch it
How to detect ad fraud: the fake clicks, impressions, installs, and leads that drain ad budgets, what each type costs, and the signals that catch them.
How to detect geolocation spoofing and prevent fraud
How to detect geolocation spoofing: how it works, why a single IP check fails, and how layered signals expose the mismatch so your team can prevent fraud.
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.