- A new user is a visitor for whom GA4 finds no existing identifier.
- The figure is overstated: cookie refusal, private browsing and device switching create false new visitors.
- The new-to-returning ratio measures less the winning of new ground than the site's ability to bring people back.
Definition
A new user is a visitor who triggered the first-visit event, for lack of an identifier recognized by GA4.
Worked example
A site shows 82% new users, suggesting an audience almost entirely renewed each month. Crossed with order data, a third of buyers turn out to be existing customers: they simply switched devices or refused measurement on a previous visit.
Orders of magnitude
A content site often runs around 60 to 80% new users, a loyal retail site lower. These figures are inflated by identification loss, in a proportion specific to each audience.
The most common mistakes
- Reading the figure as a reliable measure of new-ground winning. Some of the new are unrecognized returners.
- Comparing to Universal Analytics. The identification method changed.
- Concluding a retention problem without crossing with sales data. The CRM knows what GA4 doesn't.
Where to find the metric
In GA4, the New users metric, and the New vs returning dimension to segment. Identification by logged-in user markedly improves reliability.
Frequently asked questions
The Adwise team connects Google Ads, Meta Ads, LinkedIn Ads, GA4 and Search Console so agencies and freelancers can run their campaigns from a single place.