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September 2026: Browser insights and CrUX ad metrics

· 2 min read

This month we've added a new Browsers tab with Baseline feature support, CrUX Ad Insights metrics, and new options for Custom Dashboards.

New browsers tab​

The View Count dashboard in Real User Monitoring (RUM) has a new Browsers tab containing information on which browsers your visitors are using. There is a chart highlighting the percentage breakdown of visits between browsers such as Chrome, Safari and Firefox.

Below the browser chart, we have the Baseline Feature Support table. This table identifies features which are supported across Chrome, Edge, Firefox and Safari as well as the version in which each feature was first supported. You can also see the percentage of visitors whose browsers support each feature, helping you make informed decisions about which features are safe to use.

Browser feature table

CrUX Ad Insights metrics​

Google recently released new ad metrics, giving you insight into how ads can impact performance on your page. We have added the new CrUX data to the Web Vitals tab. If you have the data available, you can find the Ad Insights metric group at the bottom of the page.

For more information, read our blog post.

CrUX Ad Insights metrics

Rating thresholds in custom dashboards​

Based on customer feedback, we have updated the UI to include the standard rating thresholds for metrics across Custom Dashboards.

Now you can visually see how thresholds have been breached over time, such as in the First Contentful Paint (FCP) example below.

Rating thresholds

Custom aggregation intervals​

We have also added custom aggregation intervals for both lab and RUM data in Custom Dashboards. When adding a new dashboard item, you can select the aggregation period for the metric data, giving you greater flexibility when creating custom reports.

Custom aggregation intervals

New articles​

Web performance videos​

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