Cookie Consent, Dark Traffic, And Why Some Of Your Data Looks Odd

The cookie consent problem

Since GDPR, websites must ask visitors for consent before tracking them. Visitors who decline can't be tracked by Google Analytics. On sites with accessible consent banners, consent rates can be as low as 40–60% — meaning up to half your visitors are invisible to analytics.

What is dark traffic?

Dark traffic appears in GA4 as "Direct / None" — visits where the source can't be determined. Some of this genuinely is direct. But a large chunk is actually organic, social, or AI-referred traffic where the source was stripped out due to consent restrictions.

What this means for your reports

Your organic traffic numbers in GA4 are almost certainly an undercount. We cross-reference GA4 data with Google Search Console data (which doesn't rely on cookies — it measures at the search end) to get a more accurate picture.

What we can do about it

There are technical improvements to cookie consent configuration that can reduce dark traffic. If we think this is significantly affecting your reporting, we'll raise it as a recommendation.