Custom Dashboards & Threshold Alerts
The main dashboard shows all tests across all projects. For teams managing specific parts of a site, that's noise. A payments team doesn't need to see homepage metrics. A content team doesn't care about checkout performance. Custom dashboards let teams build their own views showing only what matters to them.
Threshold alerts attach to those dashboards. Instead of receiving alerts for every test, teams only get notified when specific metrics on specific pages cross defined limits. A payments team can ignore CLS changes on the homepage but get alerted immediately if Largest Contentful Paint on checkout exceeds 2.5 seconds.
Building a dashboard
Create a dashboard from the Custom Dashboards menu and add charts to it. Each chart tracks a specific metric across pages, sites, locations, or devices.
Three chart types are available. Time Series displays metrics chronologically, showing performance trends over time. Histogram shows the distribution of a metric across data points. Correlation shows the relationship between two variables, such as whether page size correlates with load time.
Filtering and selecting metrics
Define what appears on the chart by filtering on project, site, page, location, and device. Select which metric to track: Lighthouse scores, Web Vitals, Page Load Time, or First Contentful Paint. Choose a percentile. The 50th percentile shows the median. The 75th shows the experience for most users. The 90th shows the slowest users.
Setting thresholds and alert routing
The absolute threshold sets a specific value. If set to 90, an alert fires when the metric falls below 90. The relative threshold sets a variance around it. If relative is 5 with an absolute of 90, alerts fire when the metric falls below 85 or above 95. This prevents noise from single bad tests.
Threshold alerts route via email, Slack, Teams, or webhooks. Configure at Client, Project, or Site level so different teams get different alerts. The payments team sees only checkout alerts. The marketing team sees only campaign landing page alerts.
Set up your own custom dashboards
Custom Dashboards allow teams to configure threshold alerts so teams get notified of the metrics that matter to them most. Don't have a Performance Insights account yet? Set up a free trial and read the full documentation to get started.