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Wasted Click Spend
Bot clicks consume your CPC budget without any chance of conversion. Every fraudulent click increases total spend while contributing zero revenue.
Fraud Type Guide
ROAS and Ad Fraud: How Invalid Traffic Deflates Your True Return
Your Return on Ad Spend looks healthy — but how much of that spend is reaching real people? Ad fraud silently erodes ROAS by consuming budget on clicks and conversions that will never generate revenue.
What Is ROAS?
Quick answer: Return on Ad Spend measures revenue per euro spent on ads. Ad fraud deflates true ROAS by wasting budget on bot clicks and fake conversions that generate zero revenue.
ROAS — Return on Ad Spend — is the most widely used metric for measuring advertising profitability. The formula is simple: divide the revenue generated by a campaign by the amount spent on that campaign. A ROAS of 4:1 means you earn four euros for every euro invested.
But ROAS only tells the truth when every euro of spend reaches a real person. When ad fraud enters the picture, a portion of your budget goes to bot clicks, fabricated impressions, and fake conversions that will never produce revenue. The denominator grows while the numerator stays flat — and your reported ROAS drops.
How Ad Fraud Deflates Your ROAS
Fraudulent traffic attacks ROAS from multiple angles, making campaigns appear less profitable than they actually are when measured against genuine engagement alone.
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Fake Conversions
Sophisticated bots can simulate form fills, app installs, and even purchases. These phantom conversions inflate acquisition costs and distort funnel metrics.
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Algorithm Misdirection
Ad platforms optimise toward signals. When bots generate those signals, algorithms learn to target more bots — creating a feedback loop that progressively degrades performance.
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Attribution Pollution
Fraudulent touchpoints steal attribution credit from genuine channels, causing you to over-invest in fraud-heavy sources and under-invest in channels that actually convert.
Reported ROAS vs. True ROAS
The gap between your reported ROAS and your true ROAS reveals the financial damage of ad fraud. Reported ROAS divides revenue by total ad spend — including budget consumed by invalid traffic. True ROAS excludes fraudulent spend from the equation.
The Calculation Gap
For example, if you spend €10,000 on ads and generate €30,000 in revenue, your reported ROAS is 3:1. But if 20% of that spend went to fraud, your effective spend on real users was only €8,000 — giving you a true ROAS of 3.75:1. The difference is not academic: it changes which campaigns you scale, which you pause, and how you allocate budget across channels.
Better Optimisation Decisions
Brands that measure true ROAS consistently make better optimisation decisions because their data reflects genuine market performance rather than a mix of human behaviour and bot noise.
Opticks integrates via a lightweight tag — install through Google Tag Manager in under five minutes with no code changes required.
How Opticks Protects Your ROAS
Real-Time Fraud Detection
Opticks analyses every click, impression, and conversion against 30+ fraud signals in real time — separating genuine engagement from invalid traffic before it corrupts your data.
True ROAS Reporting
See your real return by filtering out fraudulent spend. Compare reported vs. true ROAS across campaigns, channels, and placements to identify where fraud hits hardest.
Budget Reallocation
Use Opticks data to redirect budget away from fraud-heavy sources toward channels that deliver genuine human engagement and measurable revenue.
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