# Study finds AI Overview traffic misattributed 22% of time

Published: 2026-08-18T15:32:27.700Z · Source: Search Engine Land (https://searchengineland.com/ai-overview-data-51000-tracked-events-485080)
Source date: 2026-08-18
Flags: single-source — confirmation pending
Entities: ai-overviews, google

A nine-month GA4 tracking study of 51,200 clicks across 1,661 AI Overview-cited snippets found an average of 22.4% of that traffic was misattributed to the Direct channel instead of Organic Search — worst in May 2026 at 29.3%, best in April at 16.8% — per Search Engine Land. The same tracking, run by Elife Group's Alex Galinos, found AI Overviews drove 7.53% of organic sessions overall, peaking at 16-17% of traffic in February-March 2026 before falling to 2-4% by August.

Why it matters: It puts a number on a known measurement blind spot — a meaningful share of AI Overview referral traffic is already landing on sites without showing up as AI-driven in standard analytics, understating the channel's real reach.

## What this answers

**Why does AI Overview traffic show up as Direct instead of Organic in Google Analytics?**

A nine-month GA4 tracking study found an average of 22.4% of sessions from Google AI Overview citation clicks were misattributed to the Direct channel rather than Organic Search, per Search Engine Land.

**What share of organic traffic comes from Google AI Overviews?**

One site tracked over nine months saw AI Overviews drive 7.53% of organic sessions on average, peaking at 16-17% in February-March 2026 before falling to 2-4% by August, per Search Engine Land.


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