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Install Vercel Speed Insights#2
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vercel/install-vercel-speed-insights-d7f8pq

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@vercel vercel Bot commented Apr 23, 2026

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Vercel Speed Insights Implementation for Medtrack

Summary

Successfully installed and configured Vercel Speed Insights for this Flutter web application following the latest official Vercel documentation.

Framework Identified

This project is a Flutter application with web support (Flutter Web). Since Flutter web apps compile to JavaScript and HTML, the appropriate integration method is the HTML5/vanilla JavaScript approach as documented in the Vercel Speed Insights quickstart guide.

Implementation Details

Modified Files:

  1. web/index.html
    • Added Vercel Speed Insights initialization script before the closing </head> tag
    • Added the deferred script loading from /_vercel/speed-insights/script.js
    • Followed the HTML5 integration pattern from official docs

Changes Made

File: web/index.html

  • Added the Speed Insights initialization code in the <head> section:
    <!-- Vercel Speed Insights -->
    <script>
      window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
    </script>
    <script defer src="/_vercel/speed-insights/script.js"></script>

Why This Approach?

  • Flutter web apps don't use npm/package managers for the web layer in the traditional sense
  • The compiled Flutter web app outputs static HTML/CSS/JS files
  • The HTML5 integration method is the correct approach for static sites and Flutter web apps
  • The script is loaded with defer to avoid blocking page rendering
  • The /_vercel/speed-insights/script.js path is automatically provided by Vercel when Speed Insights is enabled in the dashboard

Package Installation

No npm packages needed to be installed since this is a Flutter project. The Speed Insights tracking is implemented via script tags in the HTML, which is the recommended approach for Flutter web applications.

Next Steps (To be done by the user)

  1. Deploy the application to Vercel (via Git integration or vercel deploy)
  2. Enable Speed Insights in the Vercel dashboard for this project
  3. Once enabled and deployed, Speed Insights will automatically start collecting performance metrics
  4. Access the Speed Insights dashboard in Vercel to view performance data after users visit the deployed application

Testing Notes

  • Flutter is not available in this sandboxed environment, so a full build test cannot be performed
  • The HTML changes are minimal and non-breaking - they only add script tags
  • The scripts load asynchronously/deferred, so they won't affect page load performance
  • The changes preserve all existing code structure and functionality

Documentation Source

All implementation steps were retrieved from the official Vercel Speed Insights quickstart guide:
https://vercel.com/docs/speed-insights/quickstart


View Project · Speed Insights

Created by Hamas Younis (hamas-10-02) with Vercel Agent

## Vercel Speed Insights Implementation for Medtrack

### Summary
Successfully installed and configured Vercel Speed Insights for this Flutter web application following the latest official Vercel documentation.

### Framework Identified
This project is a **Flutter** application with web support (Flutter Web). Since Flutter web apps compile to JavaScript and HTML, the appropriate integration method is the **HTML5/vanilla JavaScript** approach as documented in the Vercel Speed Insights quickstart guide.

### Implementation Details

#### Modified Files:
1. **web/index.html**
   - Added Vercel Speed Insights initialization script before the closing `</head>` tag
   - Added the deferred script loading from `/_vercel/speed-insights/script.js`
   - Followed the HTML5 integration pattern from official docs

### Changes Made

**File: web/index.html**
- Added the Speed Insights initialization code in the `<head>` section:
  ```html
  <!-- Vercel Speed Insights -->
  <script>
    window.si = window.si || function () { (window.siq = window.siq || []).push(arguments); };
  </script>
  <script defer src="/_vercel/speed-insights/script.js"></script>
  ```

### Why This Approach?
- Flutter web apps don't use npm/package managers for the web layer in the traditional sense
- The compiled Flutter web app outputs static HTML/CSS/JS files
- The HTML5 integration method is the correct approach for static sites and Flutter web apps
- The script is loaded with `defer` to avoid blocking page rendering
- The `/_vercel/speed-insights/script.js` path is automatically provided by Vercel when Speed Insights is enabled in the dashboard

### Package Installation
No npm packages needed to be installed since this is a Flutter project. The Speed Insights tracking is implemented via script tags in the HTML, which is the recommended approach for Flutter web applications.

### Next Steps (To be done by the user)
1. Deploy the application to Vercel (via Git integration or `vercel deploy`)
2. Enable Speed Insights in the Vercel dashboard for this project
3. Once enabled and deployed, Speed Insights will automatically start collecting performance metrics
4. Access the Speed Insights dashboard in Vercel to view performance data after users visit the deployed application

### Testing Notes
- Flutter is not available in this sandboxed environment, so a full build test cannot be performed
- The HTML changes are minimal and non-breaking - they only add script tags
- The scripts load asynchronously/deferred, so they won't affect page load performance
- The changes preserve all existing code structure and functionality

### Documentation Source
All implementation steps were retrieved from the official Vercel Speed Insights quickstart guide:
https://vercel.com/docs/speed-insights/quickstart

Co-authored-by: Vercel <vercel[bot]@users.noreply.github.com>
@vercel

vercel Bot commented Apr 23, 2026

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The latest updates on your projects. Learn more about Vercel for GitHub.

Project Deployment Actions Updated (UTC)
medtrack Ready Ready Preview, Comment Apr 23, 2026 9:58am

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