Source: Search Engine Roundtable by barry@rustybrick.com (Barry Schwartz). Read the original article
TL;DR Summary of Google’s Upcoming Changes to Multiplex Ad Reporting
Google will update how it reports Multiplex ad units starting June 23, 2026, counting each ad in the grid as a separate ad request. This shift will lead to an increase in ad request metrics such as CTR and coverage, but total impressions and revenue should remain largely unaffected. Publishers using Multiplex ads can expect new data insights without major impact on earnings.
Optimixed’s Overview: Essential Insights Into Google’s Multiplex Ad Reporting Update
Understanding the Change in Ad Request Reporting
Google’s upcoming modification alters how Multiplex ads are measured in ad request reporting. Previously, a Multiplex ad unit—displaying multiple ads in a grid format—was counted as a single ad request with several impressions. Post-June 2026, each ad within the Multiplex grid will be counted as an individual ad request.
What Are Multiplex Ads?
- Native ad format: Multiplex ads display multiple ads in a customizable grid within one ad unit.
- Placement: Commonly positioned at the end of articles or in sidebars to monetize users who have finished content consumption.
- Customization: Publishers can tailor the style to best fit their site’s design and user experience.
Impact on Metrics and Revenue
- Increased ad requests: Counting each ad separately will raise the total number of ad requests reported.
- Shift in reporting metrics: Metrics like ad request CTR, matched ad requests, and coverage will reflect this change.
- Revenue expectations: Google indicates this change should not significantly affect total impressions or revenue, though publishers should monitor results closely.
This update aims to provide more granular data on ad delivery within Multiplex units, helping publishers better understand ad performance without disrupting overall monetization.
