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What Changed On 9 February 2026
From 9 February, Google introduced a new Auto ads setting titled “Allow additional triggers for vignette ads”, which governs both existing and newly added activation mechanisms.
The control now appears enabled by default in publisher accounts. However, the ad delivery behaviour remains unchanged during a one-month review period.
If no action is taken, the additional triggers will activate automatically on 9 March 2026.
The Three New Vignette Triggers
Under the expanded framework, vignette ads can appear when a user reaches the end of a page’s main article element and either scrolls back up or remains there for five seconds on mobile or ten seconds on desktop.
Another trigger applies when a user has been inactive for at least 30 seconds and then resumes interaction through a scroll or click. The inactivity timer begins after the last recorded user action.
A third trigger allows a vignette to appear when a user navigates backward using the browser’s back button on supported browsers, including Chrome, Edge and Opera.
Existing Triggers Remain In Place
Existing vignette triggers continue to function as before. These include unhiding a tab or window after switching away, clicking the browser navigation bar on desktop, and opening a page within the same site in a new tab before switching to it.
Google said existing frequency caps remain enforced, meaning minimum time intervals between vignette impressions continue to apply. The company also noted that the new control governs part of the existing trigger logic, meaning disabling it will turn off both new and certain current vignette behaviours.
Review Period And Opt-Out Option
Although the setting is already visible and enabled in accounts, publishers have until 9 March 2026, to opt out before the additional triggers become active.
Publishers can disable the feature through their Auto ads settings. Instructions for managing the setting are available in Google’s documentation.
What This Means For Publishers
The update is designed to unlock incremental revenue by identifying additional high-value impression opportunities tied to clear user intent signals, particularly moments of engagement completion or exit navigation.
For publishers, the change introduces new monetisation touchpoints without increasing the number of ad units embedded within content. The remaining review window allows operators to evaluate potential impact before automatic activation in March 2026.
