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https://jquery.com

Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
98
GRADE
A+
FIX
0
REVIEW
1
PASS
12
INFO
1

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop
100
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
79
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
88
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
92
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

493 ms

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

495 ms

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

0 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.015

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

493 ms

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

495 ms

Page Load Progression

375 ms
750 ms
1.1 s
1.5 s
1.9 s
2.2 s
2.6 s
3.0 s
Checks
14
12 PASS 1 REVIEW
B
Image Optimization
11 images, 0 KB saveable
REVIEW
11 images, 0 KB saveable
Info::
All images are well-optimized
11 images 70 KB
0 oversized -0 KB
10 legacy format
0 missing dimensions CLS risk
A+
Page Weight Budget
187 KB transferred, 21 requests
PASS
187 KB transferred, 21 requests
Info::
Page weighs 334 KB (187 KB transferred)
Info::
21 HTTP requests
Info::
Estimated 0.04 g CO2 per page load
187 KB / 2.4 MB budget
187 KB transferred
21 requests
0.04 g CO2 per page load
Images 70.1 KiB 37%
Fonts 58.6 KiB 31%
JavaScript 31.1 KiB 17%
CSS 18.8 KiB 10%
HTML 6.9 KiB 4%
Other 2.0 KiB 1%
0 2.4 MB 4.9 MB
Under budget
A+
Third-Party Impact
15% third-party, 0 ms blocking
PASS
15% third-party, 0 ms blocking
Info::
Third-party code accounts for 15% of page weight (27.2 KiB of 187.5 KiB)
Info::
Third-party blocking time is low (0 ms)
85%
First-party Third-party
A+
Text Compression
All text resources are compressed
PASS
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+
JS Execution Cost
58ms total JS execution
PASS
58ms total JS execution
Info::
https://jquery.com/: 58ms CPU time

Main Thread Breakdown

Style & Layout 38% Other 36% Script Evaluation 13% Rendering 6% Parse HTML & CSS 4%
ScriptTotalScriptingParse/CompileParty
https://jquery.com/58ms1ms0ms1st
A+
Font Loading
2 fonts (59 KB)
PASS
2 fonts (59 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

2

59 KB total

Render-blocking

0

of 2

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s FCP 493 ms LCP 495 mshttps://jquery.com/wp-content/themes/jquery/lib/Cairo/Cairo-Bold.woff2Cairo-Bold.woff2 https://jquery.com/wp-content/themes/jquery/lib/Cairo/Cairo-Bold.woff2 — 35.4 KiB — 30 ms — font-display: swaphttps://jquery.com/wp-content/themes/jquery/lib/FontAwesome/fontawesome-webfont.woff2fontawesome-webfont.woff2 https://jquery.com/wp-content/themes/jquery/lib/FontAwesome/fontawesome-webfont.woff2 — 23.1 KiB — 43 ms — font-display: swap
Cairo-Bold.woff2 woff2 swap
Size 35 KB
Load time 30 ms
Start 167 ms
Risk FOUT — text flashes from fallback to web font
fontawesome-webfont.woff2 woff2 swap
Size 23 KB
Load time 43 ms
Start 167 ms
Risk FOUT — text flashes from fallback to web font
Optimization checklist
  • Preload critical fonts (priority=high)
  • Use woff2 format for all fonts
  • Set font-display to swap, optional, or fallback
  • Subset large fonts (≤100 KB each)
A+
JS Bundles
3 scripts, 0 KB unused
PASS
3 scripts, 0 KB unused
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://code.jquery.com/jquery-4.0.0.min.js27 KB—✓3rd
https://jquery.com/wp-content/themes/jquery/js/main.js?v=10baaffd2 KB—✓1st
https://jquery.com/wp-content/themes/jquery/lib/typesense-minibar/typesense-minibar.js?v=830f1ee12 KB—✓1st
A+
Resource Caching
All resources properly cached
PASS
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+
Critical Rendering Path
No render-blocking resources
PASS
No render-blocking resources
Info::
No render-blocking resources detected
A+
Resource Hints
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
A+
Page Weight Inventory
21 resources · 187 KB · 0 KB savings available
PASS
21 resources · 187 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 187 KB
Info::
2 third-party resources (15% of weight)
21 resources · 187.5 KiB · 2 third-party Within 1MB page-weight target
Image 38% · 72.1 KiB
Font 31% · 58.6 KiB
JavaScript 17% · 31.1 KiB
CSS 10% · 18.8 KiB
Document 4% · 6.9 KiB
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Cloudflare

A+
HTTP Caching
max-age=300 (5 minutes)
PASS
max-age=300 (5 minutes)
Info::
Cache-Control header is set
Got: public, max-age=300
Info::
Effective TTL: 5 minutes (max-age=300)
Info::
Last-Modified header present
Cache-Control

public, max-age=300

DirectiveValueMeaning
public—Any cache may store this response
max-age300Cache for 5 minutes
Effective TTL: 300 seconds
Network Waterfall
21 requests over 249ms
INFO
0 ms 200 ms 400 ms FCP 493 ms LCP 495 mshttps://jquery.com// https://jquery.com/ — 200 — 6.9 KiB — 67 ms — h2https://jquery.com/wp-content/themes/jquery/lib/typesense-minibar/typesense-minibar.css?v=c5fa9b9a/wp-content/themes/jquery/lib/types... https://jquery.com/wp-content/themes/jquery/lib/typesense-minibar/typesense-minibar.css?v=c5fa9b9a — 200 — 4.2 KiB — 28 ms — h2https://jquery.com/wp-content/themes/jquery/css/base.css?v=4a1b65ae/wp-content/themes/jquery/css/base.... https://jquery.com/wp-content/themes/jquery/css/base.css?v=4a1b65ae — 200 — 13.3 KiB — 31 ms — h2https://jquery.com/wp-content/themes/jquery.com/style.css?v=8acf125c/wp-content/themes/jquery.com/style... https://jquery.com/wp-content/themes/jquery.com/style.css?v=8acf125c — 200 — 1.3 KiB — 29 ms — h2https://code.jquery.com/jquery-4.0.0.min.jscode.jquery.com/jquery-4.0.0.min.js https://code.jquery.com/jquery-4.0.0.min.js — 200 — 27.2 KiB — 11 ms — h2https://jquery.com/wp-content/themes/jquery/js/main.js?v=10baaffd/wp-content/themes/jquery/js/main.j... https://jquery.com/wp-content/themes/jquery/js/main.js?v=10baaffd — 200 — 1.6 KiB — 31 ms — h2https://jquery.com/wp-content/themes/jquery/lib/typesense-minibar/typesense-minibar.js?v=830f1ee1/wp-content/themes/jquery/lib/types... https://jquery.com/wp-content/themes/jquery/lib/typesense-minibar/typesense-minibar.js?v=830f1ee1 — 200 — 2.2 KiB — 32 ms — h2https://jquery.com/wp-content/themes/jquery/images/jq-nav-icons.png/wp-content/themes/jquery/images/jq... https://jquery.com/wp-content/themes/jquery/images/jq-nav-icons.png — 200 — 7.9 KiB — 29 ms — h2https://jquery.com/wp-content/themes/jquery/images/logo-jquery.png/wp-content/themes/jquery/images/lo... https://jquery.com/wp-content/themes/jquery/images/logo-jquery.png — 200 — 4.5 KiB — 39 ms — h2data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='654 -372 1664 1664' width='20' …www.w3.org/2000/svg' viewBox='654 -... data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='654 -372 1664 1664' width='20' … — 200 — 0 B — 0 ms — datahttps://jquery.com/wp-content/themes/jquery/images/dark-grey-tile.png/wp-content/themes/jquery/images/da... https://jquery.com/wp-content/themes/jquery/images/dark-grey-tile.png — 200 — 2.8 KiB — 28 ms — h2https://jquery.com/wp-content/themes/jquery.com/i/download.png/wp-content/themes/jquery.com/i/dow... https://jquery.com/wp-content/themes/jquery.com/i/download.png — 200 — 516 B — 35 ms — h2https://jquery.com/wp-content/themes/jquery.com/i/feature-sprites.png/wp-content/themes/jquery.com/i/fea... https://jquery.com/wp-content/themes/jquery.com/i/feature-sprites.png — 200 — 18.4 KiB — 29 ms — h2https://jquery.com/wp-content/themes/jquery/images/logo-digitalocean.svg/wp-content/themes/jquery/images/lo... https://jquery.com/wp-content/themes/jquery/images/logo-digitalocean.svg — 200 — 477 B — 29 ms — h2https://jquery.com/wp-content/themes/jquery/images/logo-wordpress.svg/wp-content/themes/jquery/images/lo... https://jquery.com/wp-content/themes/jquery/images/logo-wordpress.svg — 200 — 637 B — 29 ms — h2https://jquery.com/wp-content/themes/jquery/content/books/learning-jquery-4th-ed.jpg/wp-content/themes/jquery/content/b... https://jquery.com/wp-content/themes/jquery/content/books/learning-jquery-4th-ed.jpg — 200 — 6.9 KiB — 32 ms — h2https://jquery.com/wp-content/themes/jquery/content/books/jquery-in-action.jpg/wp-content/themes/jquery/content/b... https://jquery.com/wp-content/themes/jquery/content/books/jquery-in-action.jpg — 200 — 24.4 KiB — 35 ms — h2https://jquery.com/wp-content/themes/jquery/content/books/jquery-succinctly.jpg/wp-content/themes/jquery/content/b... https://jquery.com/wp-content/themes/jquery/content/books/jquery-succinctly.jpg — 200 — 3.6 KiB — 33 ms — h2https://jquery.com/wp-content/themes/jquery/lib/Cairo/Cairo-Bold.woff2/wp-content/themes/jquery/lib/Cairo... https://jquery.com/wp-content/themes/jquery/lib/Cairo/Cairo-Bold.woff2 — 200 — 35.4 KiB — 30 ms — h2https://jquery.com/wp-content/themes/jquery/lib/FontAwesome/fontawesome-webfont.woff2/wp-content/themes/jquery/lib/FontA... https://jquery.com/wp-content/themes/jquery/lib/FontAwesome/fontawesome-webfont.woff2 — 200 — 23.1 KiB — 43 ms — h2https://jquery.com/wp-content/themes/jquery.com/i/favicon.ico/wp-content/themes/jquery.com/i/fav... https://jquery.com/wp-content/themes/jquery.com/i/favicon.ico — 200 — 2.0 KiB — 28 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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