How to detect and stop bot traffic on your ads
A meaningful slice of paid traffic is never human — and the ad platforms' own reports won't show you which. Here's how bot traffic works, and how ValidVisit catches it by weighing every click against 100+ data points.
What bot traffic costs advertisers
Every bot click spends real budget for zero chance of a sale. Worse, it pollutes your analytics: inflated CTR, depressed conversion rate, and a CPA you can’t explain. Native, push and pop inventory — where most tools have thin coverage — tends to carry the highest share of invalid traffic.
Types of bot traffic
- Simple bots & crawlers — scripts that fetch your page, often without running JavaScript at all.
- Automated browsers — real browser engines driven by software, with no person at the keyboard, to imitate users at scale.
- Automation traffic — browsers steered programmatically to click, fill and navigate without human intent.
- Datacenter & proxy traffic — clicks from server farms or VPNs rather than residential connections.
Deep detection — 100+ data points per click
Traffic that slips past a single check rarely slips past a hundred. ValidVisit weighs every click against 100+ independent data points — spanning the network it came from, the device behind it, and how the visitor behaves — and combines them into a single 0-100 quality score, so genuine humans pass and bots stand out:
Data points → one score
Every click is weighed against more than a hundred independent data points and reduced to a single, sortable 0–100 quality score.
Many angles, combined
Each data point is combined rather than checked in isolation, so a genuine human almost never trips enough of them to be flagged — and bots that beat one rarely beat the rest.
Proprietary, not a black box
The detection model is ours and stays that way. What you get is a clear verdict on every click — not a single brittle rule you can game, and not an unexplained number you can't act on.
Pinned to the source
Every verdict maps to the campaign, publisher and placement that sent the click — so you know exactly which source to cut.
Illustrative example — the same 0–100 score, per source, worst first.
See bot traffic per campaign and publisher
Detection only matters if you can act on it. ValidVisit attributes every scored click across UTM and a directory of 46 ad-network tracking tokens, so bot traffic is pinned to the exact campaign, creative and publisher sending it. Start with the click fraud protection overview or a specific network like Taboola or Google Ads.
Go deeper on the mechanics in how click fraud detection works, see the symptoms in fake traffic detection, or read what is invalid traffic (GIVT vs SIVT) and what is click fraud.
FAQ
What counts as bot traffic on ads?+
How do you detect an automated browser?+
Can bots that don't run JavaScript still be caught?+
Do you block the bots automatically?+
See what your paid traffic really is.
Bots, fake clicks and invalid traffic detected and scored 0–100 — one script, no funnel hop.
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One script · raw IP never stored · GDPR legitimate-interest basis