Click fraud is the generation of ad clicks that are not genuine expressions of user interest, in order to extract payment from an advertiser or to exhaust a competitor's budget. The clicks may come from bots, automated scripts, click farms, malware on real devices, or incentivised humans paid to click.
Definition
Click fraud is the generation of ad clicks that are not genuine expressions of user interest, in order to extract payment from an advertiser or to exhaust a competitor's budget. The clicks may come from bots, automated scripts, click farms, malware on real devices, or incentivised humans paid to click.
In pay-per-click and CPC-based affiliate arrangements, click fraud directly inflates the advertiser's cost for zero downstream value; in CPA arrangements it wastes budget on traffic that cannot convert.
Click fraud is a subset of ad fraud and is illegal in most jurisdictions when done to defraud an advertiser. It exists because parts of the advertising supply chain pay on the click rather than on a verified outcome, creating an incentive to manufacture clicks.
Detection focuses on signals that separate manufactured clicks from real ones: impossible click-through rates, clicks with no subsequent page engagement, tight timing clusters, data-centre and known-proxy IPs, device fingerprints that do not match the claimed device, and geographic patterns inconsistent with the campaign.
In context
For iGaming affiliates and advertisers, click fraud matters even under CPA and RevShare models, because fraudulent clicks still consume ad-platform budget, distort optimisation data, and can carry through to fake registrations and bonus abuse if the fraud operation is sophisticated. A traffic source with a high click volume but near-zero engagement past the click is a classic sign, and buyers use blacklists, SubID-level analysis and third-party fraud-detection vendors to isolate and remove it.
Defending against click fraud is mostly about not paying on the click alone. Advertisers structure deals around verified outcomes — a registration that passes checks, a deposit that qualifies — so that manufactured clicks cost the fraudster money without earning them anything.
Where clicks are paid (some CPC arrangements, some traffic purchases), advertisers apply pre-bid and post-click filtering, cap spend per source until quality is proven, and reconcile billed clicks against engaged sessions. The residual click fraud that gets through is treated as a cost of doing business in open inventory and managed down over time rather than eliminated.
Worked example
A CPC push campaign shows one zone delivering 12,000 clicks a day at a 22% click-through rate — far above the 0.4% norm — with an average on-page time of 0.8 seconds and no scroll events. The buyer blacklists the zone, disputes the billed clicks with the network, and adds a third-party fraud filter that would have caught it pre-bid.
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