WebPerformance Report

powered by WebPageTest

#WebPerf result for:

URL: https://www.ycombinator.com/

From: Frankfurt, Germany - (Chrome) - Mobile

Date: 2025-05-30T19:32:08

ID: 250530_BiDcF3_F0B

Filmstrip - Video - Map - Opportunities - History - Frustration index (new)

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Optimization Scores

Grades for the most critical performance optimizations.

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

Perf Links

Great posts about web tech.

⚡️ Performance debugging in DevTools [ChromeDevs]

⚡️ Improve LCP by Deprioritizing Script Modules [ruter]

⚡️ A11y Cat Accessibility Resources [a11ycat]

⚡️ Understanding and using semantic HTML [mozilla]

Core Web Vitals

UX Metrics for loading, visual stability, and interactivity.

LCP
CLS
TBT
5.398s 0.002 5.432s
LCP - CrUX
CLS - CrUX
INP - CrUX
TTFB - CrUX (new)
3.075s 0.030 0.132s 1.818s
View Web Vitals Diagnostic

Lighthouse Scores

Diagnose performance issues - 3G Fast connection.

Performance
Accessibility
Best Practices
SEO
41 94 74 90
View Lighthouse Report

Performance Results

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

First Byte
Start Render
FCP
Speed Index
1.676s 5.400s 5.398s 5.418s

Document Complete

Time
Requests
Bytes In
30.389s 342 3,729 KB

Fully Loaded

Time
Requests
Bytes In
33.035s 346 3,736 KB

Content Breakdown

Website content breakdown by MIME type.

MIME Type
Requests
Bytes
js 11 1,236KB
css 22 144KB
image 50 2,074KB
font 0 0KB
html 257 283KB
View Full Test in WebPageTest.org