Using Speed Insights

To access Speed Insights:

1. Select a project from your dashboard and open Speed Insights in the sidebar.
2. Select the timeframe and environment you want to view data for.
3. Use the panels to filter the page or event data you want to view.

Speed Insights offers a variety of views to help you analyze your application's performance data. This allows you to identify areas that need improvement and make informed decisions about how to optimize your site.

To view metrics for a specific route or path:

1. Select a project from your dashboard and open Speed Insights in the sidebar.
2. From the left-hand panel, select the metric you want to view data for.
3. From the URL view, select the corresponding tab to view by the Route (the actual pages you built), or by Path (the URLs requested by the visitor).
4. The information is organized by performance score and sorted by data points. Scroll the list to view more all paths or routes, or click the View all button to view and filter all data.
5. You can also edit the timeframe and environment you want to view data for.

To view a detailed breakdown of the performance of individual HTML elements on your site:

1. Select a project from your dashboard and open Speed Insights in the sidebar.
2. From the left-hand panel, select the metric you want to view data for. HTML element attribution is only available for the following metrics:
   • Interaction to Next Paint (INP)
   • First Input Delay (FID)
   • Cumulative Layout Shift (CLS)
   • Largest Contentful Paint (LCP)
3. From the URL view, open Selectors in the sidebar.
4. The information is organized by performance score and sorted by data points. Scroll the list to view more all elements, or click the View all button to view and filter all data.
5. You can also edit the timeframe and environment you want to view data for.

This view is particularly useful for identifying specific elements that may be causing performance issues.

This view is helpful for identifying regions where your application may be underperforming.

To view a geographical breakdown of your application's performance:

1. Select a project from your dashboard and open Speed Insights in the sidebar.
2. From the left-hand panel, select the metric you want to view data for.
3. Scroll down to the Countries section.
4. The map is colored based on the experience metric per country. Click on a country to view more detailed data.

If a project is on Speed Insights Plus you can downgrade it to Speed Insights:

1. Select a project from your dashboard.
2. Open Speed Insights in the sidebar.
3. Click on the ellipsis on the top-right of the Speed Insights page and select Downgrade to Speed Insights.

When you downgrade in the middle of your billing cycle, Speed Insights Plus stays available until the end of the cycle, and Vercel continues to show the events you already collected. After that, events will count toward your team's allocation.