WebPerformance Report

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#WebPerf result for:

URL: https://vercel.com/

From: North America: California - EC2 (Chrome) - Desktop

Date: 2024-03-08T00:42:22

ID: 240307_AiDcRY_HC9

Filmstrip - Video - Map - Opportunities

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Optimization Scores

Grades for the most critical performance optimizations.

73 A A A
Lighthouse Perf (new)
Security score
First Byte Time
Keep-alive Enabled
A B A ✓
Compress Transfer
Compress Images
Cache static content
Effective use of CDN
View Performance Optimization Overview

Perf Links

Great posts about web tech.

⚡️ The History of Core Web Vitals [addyosmani]

⚡️ Performance is Good for Brains [codepen]

⚡️ A five minute web performance boost [frontendmasters]

⚡️ Improving Shopify Apps Performance [shopify]

Core Web Vitals

UX Metrics for loading, visual stability, and interactivity.

LCP
CLS
TBT
1.624s 0.000 2.466s
LCP - CrUX
CLS - CrUX
INP - CrUX
TTFB - CrUX (new)
1.204s 0.000 0.103s 0.509s
View Web Vitals Diagnostic

AI Insight✨(new)

Executive summary for this report:

The website's Core Web Vitals are consistently improving, indicating a positive trend in user experience. Largest Contentful Paint (LCP) improved by 0.029 seconds to 1.204 seconds, while Interaction to Next Paint (INP) decreased by 0.010 seconds to 0.103 seconds, and Time To First Byte (TTFB) also improved by 0.011 seconds to 0.509 seconds since the last report. Cumulative Layout Shift (CLS) remains excellent at 0.000. These sustained performance gains are crucial for enhanced user engagement and business growth.

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Lighthouse Scores

Diagnose performance issues - 3G Fast connection.

Performance
Accessibility
Best Practices
SEO
73 82 74 92
View Lighthouse Report

Performance Results

High-level metrics information about the page that was tested.

First Byte
Start Render
FCP
Speed Index
0.201s 4.600s 4.405s 4.634s

Document Complete

Time
Requests
Bytes In
4.772s 240 1,886 KB

Fully Loaded

Time
Requests
Bytes In
10.241s 357 3,478 KB

Content Breakdown

Website content breakdown by MIME type.

MIME Type
Requests
Bytes
js 5 266KB
css 3 14KB
image 2 20KB
font 2 51KB
html 2 9KB
View Full Test in WebPageTest.org