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Install and configure Vercel Speed Insights#2
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@vercel vercel Bot commented Jul 29, 2026

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Vercel Speed Insights Implementation Report

Summary

Successfully implemented Vercel Speed Insights for the CAIRN ETP website following the latest official documentation.

Changes Made

1. Package Installation

  • Installed @vercel/speed-insights v2.0.0 via npm
  • Updated package.json with the new dependency
  • Generated package-lock.json with locked dependency versions

2. Speed Insights Integration

Added Vercel Speed Insights tracking scripts to both HTML pages:

Modified Files:

  • index.html - Added Speed Insights initialization and script loader in the <head> section
  • book.html - Added Speed Insights initialization and script loader in the <head> section

Implementation Details:

Used the static site approach as recommended in the Vercel documentation:

  • Added initialization script that creates the window.si function and queue (window.siq)
  • Added deferred script tag to load /_vercel/speed-insights/script.js
  • Placed scripts at the end of the <head> section for optimal loading

3. Framework-Specific Approach

This project is a static HTML/CSS/JS website served by FastAPI. Based on the Vercel documentation, I used the "without a package manager" approach which is ideal for static sites:

  • No build process changes required
  • No JavaScript module bundling needed
  • Clean inline script integration

Verification Steps Completed

✅ Installed the @vercel/speed-insights package
✅ Added Speed Insights scripts to both HTML pages (index.html and book.html)
✅ Verified build completes successfully (npm run build)
✅ Validated HTML syntax for both files using Python HTML parser
✅ Confirmed Speed Insights script tags are present in both pages
✅ Updated package-lock.json with dependency resolution

Next Steps for Deployment

After deployment to Vercel:

  1. Enable Speed Insights in the Vercel dashboard for this project
  2. Deploy the updated code to Vercel
  3. The /_vercel/speed-insights/script.js endpoint will be automatically available
  4. Speed Insights will start collecting performance metrics automatically
  5. View performance data in the Vercel Dashboard under Speed Insights

Technical Notes

  • The implementation uses the recommended static site approach from the official Vercel documentation
  • Speed Insights will only track data in production mode (not in development)
  • The script loads with defer attribute to avoid blocking page rendering
  • Both main pages (homepage and book page) now include Speed Insights tracking
  • The FastAPI backend doesn't require any changes as it serves static HTML files

Files Modified

  • index.html - Added Vercel Speed Insights scripts
  • book.html - Added Vercel Speed Insights scripts
  • package.json - Added @vercel/speed-insights dependency
  • package-lock.json - Generated with locked versions (new file)

All changes preserve the existing code structure and only add the necessary Speed Insights functionality.


View Project · Speed Insights

Created by cyarwood80 with Vercel Agent

# Vercel Speed Insights Implementation Report

## Summary
Successfully implemented Vercel Speed Insights for the CAIRN ETP website following the latest official documentation.

## Changes Made

### 1. Package Installation
- Installed `@vercel/speed-insights` v2.0.0 via npm
- Updated `package.json` with the new dependency
- Generated `package-lock.json` with locked dependency versions

### 2. Speed Insights Integration
Added Vercel Speed Insights tracking scripts to both HTML pages:

#### Modified Files:
- **index.html** - Added Speed Insights initialization and script loader in the `<head>` section
- **book.html** - Added Speed Insights initialization and script loader in the `<head>` section

#### Implementation Details:
Used the static site approach as recommended in the Vercel documentation:
- Added initialization script that creates the `window.si` function and queue (`window.siq`)
- Added deferred script tag to load `/_vercel/speed-insights/script.js`
- Placed scripts at the end of the `<head>` section for optimal loading

### 3. Framework-Specific Approach
This project is a static HTML/CSS/JS website served by FastAPI. Based on the Vercel documentation, I used the "without a package manager" approach which is ideal for static sites:
- No build process changes required
- No JavaScript module bundling needed
- Clean inline script integration

## Verification Steps Completed

✅ Installed the @vercel/speed-insights package  
✅ Added Speed Insights scripts to both HTML pages (index.html and book.html)  
✅ Verified build completes successfully (`npm run build`)  
✅ Validated HTML syntax for both files using Python HTML parser  
✅ Confirmed Speed Insights script tags are present in both pages  
✅ Updated package-lock.json with dependency resolution  

## Next Steps for Deployment

After deployment to Vercel:
1. Enable Speed Insights in the Vercel dashboard for this project
2. Deploy the updated code to Vercel
3. The `/_vercel/speed-insights/script.js` endpoint will be automatically available
4. Speed Insights will start collecting performance metrics automatically
5. View performance data in the Vercel Dashboard under Speed Insights

## Technical Notes

- The implementation uses the recommended static site approach from the official Vercel documentation
- Speed Insights will only track data in production mode (not in development)
- The script loads with `defer` attribute to avoid blocking page rendering
- Both main pages (homepage and book page) now include Speed Insights tracking
- The FastAPI backend doesn't require any changes as it serves static HTML files

## Files Modified
- `index.html` - Added Vercel Speed Insights scripts
- `book.html` - Added Vercel Speed Insights scripts
- `package.json` - Added @vercel/speed-insights dependency
- `package-lock.json` - Generated with locked versions (new file)

All changes preserve the existing code structure and only add the necessary Speed Insights functionality.

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

vercel Bot commented Jul 29, 2026

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Project Deployment Actions Updated (UTC)
cairnetp Ready Ready Preview, Comment Jul 29, 2026 6:28pm
cairnetp-3uo5 Ready Ready Preview, Comment Jul 29, 2026 6:28pm

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