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Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
86
GRADE
B
FIX
2
REVIEW
2
PASS
9
INFO
2

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

86
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
100
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
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.

1.14 s

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

2.14 s

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.

0.000

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

1.52 s

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

2.15 s

Page Load Progression

390 ms
780 ms
1.2 s
1.6 s
2.0 s
2.3 s
2.7 s
3.1 s
Checks
15
9 PASS 2 REVIEW 2 FIX
D
Third-Party Impact
Action
100% third-party, 0 ms blocking
FIX
100% third-party, 0 ms blocking
Warning::
Third-party code accounts for 100% of page weight (1020.7 KiB of 1022.4 KiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
HTTP Caching
Action
no-store (uncacheable)
FIX
no-store (uncacheable)
Info::
Cache-Control: no-store prevents all caching
Intentional for dynamic content, but increases server load for every page view.
Got: no-cache, no-store, must-revalidate, max-age=0
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

no-cache, no-store, must-revalidate, max-age=0

DirectiveValueMeaning
no-cacheCache but always revalidate first
no-storeNever cache this response
must-revalidateMust recheck with server after expiry
max-age0Cache for 0 seconds
C
Image Optimization
Action
16 images, 0 KB saveable
REVIEW
16 images, 0 KB saveable
Warning::
https://cdn.joomla.org/images/joomla-colours-logo.... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cdn.joomla.org/rochen/rochen_footer_logo_w... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
16 images 253 KB
0 oversized -0 KB
16 legacy format
2 missing dimensions CLS risk

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

B
JS Bundles
17 scripts, 136 KB unused
REVIEW
17 scripts, 136 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-X283...: 71 KB unused (43%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-WWC...: 65 KB unused (53%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 136 KB
136 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-X283HVFSTN&cx=c&_slc=1164 KB71 KB (43%)3rd
https://www.googletagmanager.com/gtm.js?id=GTM-WWC8WL122 KB65 KB (53%)3rd
https://www.joomla.org/media/com_finder/js/finder.min.js?fef28a772797e455407289af062167ac1 KB3rd
https://www.joomla.org/media/templates/site/joomla/js/template.js?c7c1271 KB3rd
https://www.joomla.org/media/system/js/core.min.js?fef28a772797e455407289af062167ac3 KB3rd
https://www.joomla.org/media/system/js/messages.min.js?fef28a772797e455407289af062167ac3 KB3rd
https://www.joomla.org/media/templates/site/joomla/js/blockadblock.js?3.2.12 KB3rd
https://www.joomla.org/media/templates/site/joomla/js/js.cookie.js?2.1.43 KB3rd
https://www.joomla.org/media/vendor/skipto/js/skipto.min.js?4.1.710 KB3rd
https://www.joomla.org/media/mod_menu/js/menu.min.js?fef28a772797e455407289af062167ac2 KB3rd

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

A
Page Weight Budget
1022 KB transferred, 50 requests
PASS
1022 KB transferred, 50 requests
Info::
Page weighs 2.0 MB (1022 KB transferred)
Info::
Fonts are 315 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 315 KB
Info::
50 HTTP requests
Info::
Estimated 0.21 g CO2 per page load
1022 KB / 2.4 MB budget
1022 KB transferred
50 requests
0.21 g CO2 per page load
JavaScript 359.3 KiB 35%
Fonts 314.7 KiB 31%
Images 252.8 KiB 25%
CSS 78.6 KiB 8%
HTML 12.8 KiB 1%
Other 3.0 KiB 0%
Other 678 B 0%
Other 549 B 0%
0 2.4 MB 4.9 MB
Under budget

Subset fonts to include only used characters, or switch to system font stacks.

Why this matters

Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).

Source: web.dev font loading

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
332ms total JS execution
PASS
332ms total JS execution
Info::
https://www.joomla.org/: 210ms CPU time
Info::
Unattributable: 122ms CPU time
Warning::
Third-party scripts: 332ms (100% of total)

Main Thread Breakdown

Other 40% Script Evaluation 23% Style & Layout 20% Rendering 8% Script Parsing & Compilation 5%
ScriptTotalScriptingParse/CompileParty
https://www.joomla.org/210ms3ms0ms3rd
Unattributable122ms17ms0ms3rd
A+
Font Loading
3 fonts (315 KB)
PASS
3 fonts (315 KB)
Info::
3 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

3

315 KB total

Render-blocking

0

of 3

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 1.1 s LCP 2.1 shttps://www.joomla.org/media/vendor/fontawesome-free/webfonts/fa-brands-400.woff2?v=cbcf42fa-brands-400.woff2 https://www.joomla.org/media/vendor/fontawesome-free/webfonts/fa-brands-400.woff2?v=cbcf42 — 117.6 KiB — 41 ms — font-display: swaphttps://fonts.gstatic.com/s/opensans/v44/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu0SC55I.woff2memvYaGs126MiZpBA-UvWbX... https://fonts.gstatic.com/s/opensans/v44/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu0SC55I.woff2 — 42.0 KiB — 42 ms — font-display: swaphttps://www.joomla.org/media/vendor/fontawesome-free/webfonts/fa-solid-900.woff2?v=4a6591fa-solid-900.woff2 https://www.joomla.org/media/vendor/fontawesome-free/webfonts/fa-solid-900.woff2?v=4a6591 — 155.1 KiB — 42 ms — font-display: swap
fa-brands-400.woff2 woff2 swap
Size 118 KB
Load time 41 ms
Start 1.0 s
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
memvYaGs126MiZpBA-UvWbX... woff2 swap
Size 42 KB
Load time 42 ms
Start 1.0 s
Risk FOUT — text flashes from fallback to web font
fa-solid-900.woff2 woff2 swap
Size 155 KB
Load time 42 ms
Start 1.0 s
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
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)

Fixing the unchecked items could save ~136 KB and ~272 ms

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
50 resources · 1022 KB · 136 KB savings available
PASS
50 resources · 1022 KB · 136 KB savings available
Info::
Within 1MB page-weight target
Got: 1022 KB
Info::
~136 KB of savings available
Warning::
49 third-party resources (100% of weight)
50 resources · 1022.4 KiB · 49 third-party Within 1MB page-weight target
JavaScript 35% · 359.3 KiB
Font 31% · 314.7 KiB
Image 25% · 254.0 KiB
CSS 8% · 78.6 KiB
Document 1% · 14.6 KiB
Other 0% · 1.2 KiB

~136.3 KiB of savings available

Remove unused JavaScript: 136.3 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

Network Waterfall
50 requests over 1586ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 1.1 s LCP 2.1 shttps://joomla.org// https://joomla.org/ — 302 — 1.7 KiB — 166 ms — h2https://www.joomla.org/www.joomla.org/ https://www.joomla.org/ — 200 — 12.8 KiB — 178 ms — h2https://fonts.googleapis.com/css2?family=Open+Sans:wght@300;400;700&display=swapfonts.googleapis.com/css2?family=Op... https://fonts.googleapis.com/css2?family=Open+Sans:wght@300;400;700&display=swap — 200 — 2.2 KiB — 82 ms — h2https://www.joomla.org/media/system/css/joomla-fontawesome.min.css?c7c127www.joomla.org/media/system/css/joo... https://www.joomla.org/media/system/css/joomla-fontawesome.min.css?c7c127 — 200 — 26.1 KiB — 498 ms — h2https://cdn.joomla.org/template/css/template_4.0.9.min.css?c7c127cdn.joomla.org/template/css/templat... https://cdn.joomla.org/template/css/template_4.0.9.min.css?c7c127 — 200 — 34.3 KiB — 553 ms — h2https://www.joomla.org/media/mod_menu/css/mod-menu.min.css?fef28a772797e455407289af062167acwww.joomla.org/media/mod_menu/css/m... https://www.joomla.org/media/mod_menu/css/mod-menu.min.css?fef28a772797e455407289af062167ac — 200 — 2.0 KiB — 27 ms — h2https://www.joomla.org/media/vendor/awesomplete/css/awesomplete.css?1.1.7www.joomla.org/media/vendor/awesomp... https://www.joomla.org/media/vendor/awesomplete/css/awesomplete.css?1.1.7 — 200 — 926 B — 29 ms — h2https://www.joomla.org/media/vendor/joomla-custom-elements/css/joomla-alert.min.css?0.4.1www.joomla.org/media/vendor/joomla-... https://www.joomla.org/media/vendor/joomla-custom-elements/css/joomla-alert.min.css?0.4.1 — 200 — 1.1 KiB — 30 ms — h2https://www.joomla.org/media/templates/site/joomla/css/custom.min.css?c7c127www.joomla.org/media/templates/site... https://www.joomla.org/media/templates/site/joomla/css/custom.min.css?c7c127 — 200 — 9.4 KiB — 389 ms — h2https://www.joomla.org/media/plg_system_jcepro/site/css/content.min.css?86aa0286b6232c4a5b58f892ce080277www.joomla.org/media/plg_system_jce... https://www.joomla.org/media/plg_system_jcepro/site/css/content.min.css?86aa0286b6232c4a5b58f892ce080277 — 200 — 2.7 KiB — 32 ms — h2https://www.joomla.org/media/system/js/core.min.js?fef28a772797e455407289af062167acwww.joomla.org/media/system/js/core... https://www.joomla.org/media/system/js/core.min.js?fef28a772797e455407289af062167ac — 200 — 3.3 KiB — 36 ms — h2https://www.joomla.org/media/vendor/bootstrap/js/collapse.min.js?5.3.8www.joomla.org/media/vendor/bootstr... https://www.joomla.org/media/vendor/bootstrap/js/collapse.min.js?5.3.8 — 200 — 3.1 KiB — 37 ms — h2https://www.joomla.org/media/vendor/bootstrap/js/dropdown.min.js?5.3.8www.joomla.org/media/vendor/bootstr... https://www.joomla.org/media/vendor/bootstrap/js/dropdown.min.js?5.3.8 — 200 — 2.6 KiB — 38 ms — h2https://www.joomla.org/media/mod_menu/js/menu.min.js?fef28a772797e455407289af062167acwww.joomla.org/media/mod_menu/js/me... https://www.joomla.org/media/mod_menu/js/menu.min.js?fef28a772797e455407289af062167ac — 200 — 2.0 KiB — 33 ms — h2https://www.joomla.org/media/com_finder/js/finder.min.js?fef28a772797e455407289af062167acwww.joomla.org/media/com_finder/js/... https://www.joomla.org/media/com_finder/js/finder.min.js?fef28a772797e455407289af062167ac — 200 — 968 B — 39 ms — h2https://www.joomla.org/media/system/js/messages.min.js?fef28a772797e455407289af062167acwww.joomla.org/media/system/js/mess... https://www.joomla.org/media/system/js/messages.min.js?fef28a772797e455407289af062167ac — 200 — 3.2 KiB — 42 ms — h2https://cdn.joomla.org/images/joomla-colours-logo.svgcdn.joomla.org/images/joomla-colour... https://cdn.joomla.org/images/joomla-colours-logo.svg — 200 — 2.5 KiB — 41 ms — h2https://www.joomla.org/images/homepage/jdayusa-event-hero.jpgwww.joomla.org/images/homepage/jday... https://www.joomla.org/images/homepage/jdayusa-event-hero.jpg — 200 — 52.7 KiB — 30 ms — h2https://www.joomla.org/images/homepage/elasticemail-light.svgwww.joomla.org/images/homepage/elas... https://www.joomla.org/images/homepage/elasticemail-light.svg — 200 — 3.9 KiB — 30 ms — h2https://www.joomla.org/images/homepage/scalahosting-light.svgwww.joomla.org/images/homepage/scal... https://www.joomla.org/images/homepage/scalahosting-light.svg — 200 — 2.2 KiB — 26 ms — h2https://www.joomla.org/images/homepage/cloudaccess.svg?=nwww.joomla.org/images/homepage/clou... https://www.joomla.org/images/homepage/cloudaccess.svg?=n — 200 — 9.1 KiB — 25 ms — h2https://www.joomla.org/media/templates/site/joomla/js/blockadblock.js?3.2.1www.joomla.org/media/templates/site... https://www.joomla.org/media/templates/site/joomla/js/blockadblock.js?3.2.1 — 200 — 2.1 KiB — 25 ms — h2https://www.joomla.org/media/templates/site/joomla/js/js.cookie.js?2.1.4www.joomla.org/media/templates/site... https://www.joomla.org/media/templates/site/joomla/js/js.cookie.js?2.1.4 — 200 — 2.8 KiB — 25 ms — h2https://www.joomla.org/media/vendor/skipto/js/skipto.min.js?4.1.7www.joomla.org/media/vendor/skipto/... https://www.joomla.org/media/vendor/skipto/js/skipto.min.js?4.1.7 — 200 — 9.9 KiB — 23 ms — h2https://www.joomla.org/media/templates/site/joomla/js/template.js?c7c127www.joomla.org/media/templates/site... https://www.joomla.org/media/templates/site/joomla/js/template.js?c7c127 — 200 — 1015 B — 378 ms — h2https://www.joomla.org/media/vendor/awesomplete/js/awesomplete.min.js?1.1.7www.joomla.org/media/vendor/awesomp... https://www.joomla.org/media/vendor/awesomplete/js/awesomplete.min.js?1.1.7 — 200 — 2.9 KiB — 26 ms — h2https://www.joomla.org/images/homepage/crowdin-logo.svgwww.joomla.org/images/homepage/crow... https://www.joomla.org/images/homepage/crowdin-logo.svg — 200 — 3.2 KiB — 24 ms — h2https://www.joomla.org/images/homepage/reporturi.svgwww.joomla.org/images/homepage/repo... https://www.joomla.org/images/homepage/reporturi.svg — 200 — 2.5 KiB — 27 ms — h2https://cdn.joomla.org/rochen/rochen_footer_logo_white.svgcdn.joomla.org/rochen/rochen_footer... https://cdn.joomla.org/rochen/rochen_footer_logo_white.svg — 200 — 3.5 KiB — 27 ms — h2https://rum-static.pingdom.net/prum.min.jsrum-static.pingdom.net/prum.min.js https://rum-static.pingdom.net/prum.min.js — 200 — 2.8 KiB — 66 ms — h2
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 1.1 s LCP 2.1 shttps://joomla.org// https://joomla.org/ — 302 — 1.7 KiB — 166 ms — h2https://www.joomla.org/www.joomla.org/ https://www.joomla.org/ — 200 — 12.8 KiB — 178 ms — h2https://fonts.googleapis.com/css2?family=Open+Sans:wght@300;400;700&display=swapfonts.googleapis.com/css2?family=Op... https://fonts.googleapis.com/css2?family=Open+Sans:wght@300;400;700&display=swap — 200 — 2.2 KiB — 82 ms — h2https://www.joomla.org/media/system/css/joomla-fontawesome.min.css?c7c127www.joomla.org/media/system/css/joo... https://www.joomla.org/media/system/css/joomla-fontawesome.min.css?c7c127 — 200 — 26.1 KiB — 498 ms — h2https://cdn.joomla.org/template/css/template_4.0.9.min.css?c7c127cdn.joomla.org/template/css/templat... https://cdn.joomla.org/template/css/template_4.0.9.min.css?c7c127 — 200 — 34.3 KiB — 553 ms — h2https://www.joomla.org/media/mod_menu/css/mod-menu.min.css?fef28a772797e455407289af062167acwww.joomla.org/media/mod_menu/css/m... https://www.joomla.org/media/mod_menu/css/mod-menu.min.css?fef28a772797e455407289af062167ac — 200 — 2.0 KiB — 27 ms — h2https://www.joomla.org/media/vendor/awesomplete/css/awesomplete.css?1.1.7www.joomla.org/media/vendor/awesomp... https://www.joomla.org/media/vendor/awesomplete/css/awesomplete.css?1.1.7 — 200 — 926 B — 29 ms — h2https://www.joomla.org/media/vendor/joomla-custom-elements/css/joomla-alert.min.css?0.4.1www.joomla.org/media/vendor/joomla-... https://www.joomla.org/media/vendor/joomla-custom-elements/css/joomla-alert.min.css?0.4.1 — 200 — 1.1 KiB — 30 ms — h2https://www.joomla.org/media/templates/site/joomla/css/custom.min.css?c7c127www.joomla.org/media/templates/site... https://www.joomla.org/media/templates/site/joomla/css/custom.min.css?c7c127 — 200 — 9.4 KiB — 389 ms — h2https://www.joomla.org/media/plg_system_jcepro/site/css/content.min.css?86aa0286b6232c4a5b58f892ce080277www.joomla.org/media/plg_system_jce... https://www.joomla.org/media/plg_system_jcepro/site/css/content.min.css?86aa0286b6232c4a5b58f892ce080277 — 200 — 2.7 KiB — 32 ms — h2https://www.joomla.org/media/system/js/core.min.js?fef28a772797e455407289af062167acwww.joomla.org/media/system/js/core... https://www.joomla.org/media/system/js/core.min.js?fef28a772797e455407289af062167ac — 200 — 3.3 KiB — 36 ms — h2https://www.joomla.org/media/vendor/bootstrap/js/collapse.min.js?5.3.8www.joomla.org/media/vendor/bootstr... https://www.joomla.org/media/vendor/bootstrap/js/collapse.min.js?5.3.8 — 200 — 3.1 KiB — 37 ms — h2https://www.joomla.org/media/vendor/bootstrap/js/dropdown.min.js?5.3.8www.joomla.org/media/vendor/bootstr... https://www.joomla.org/media/vendor/bootstrap/js/dropdown.min.js?5.3.8 — 200 — 2.6 KiB — 38 ms — h2https://www.joomla.org/media/mod_menu/js/menu.min.js?fef28a772797e455407289af062167acwww.joomla.org/media/mod_menu/js/me... https://www.joomla.org/media/mod_menu/js/menu.min.js?fef28a772797e455407289af062167ac — 200 — 2.0 KiB — 33 ms — h2https://www.joomla.org/media/com_finder/js/finder.min.js?fef28a772797e455407289af062167acwww.joomla.org/media/com_finder/js/... https://www.joomla.org/media/com_finder/js/finder.min.js?fef28a772797e455407289af062167ac — 200 — 968 B — 39 ms — h2https://www.joomla.org/media/system/js/messages.min.js?fef28a772797e455407289af062167acwww.joomla.org/media/system/js/mess... https://www.joomla.org/media/system/js/messages.min.js?fef28a772797e455407289af062167ac — 200 — 3.2 KiB — 42 ms — h2https://cdn.joomla.org/images/joomla-colours-logo.svgcdn.joomla.org/images/joomla-colour... https://cdn.joomla.org/images/joomla-colours-logo.svg — 200 — 2.5 KiB — 41 ms — h2https://www.joomla.org/images/homepage/jdayusa-event-hero.jpgwww.joomla.org/images/homepage/jday... https://www.joomla.org/images/homepage/jdayusa-event-hero.jpg — 200 — 52.7 KiB — 30 ms — h2https://www.joomla.org/images/homepage/elasticemail-light.svgwww.joomla.org/images/homepage/elas... https://www.joomla.org/images/homepage/elasticemail-light.svg — 200 — 3.9 KiB — 30 ms — h2https://www.joomla.org/images/homepage/scalahosting-light.svgwww.joomla.org/images/homepage/scal... https://www.joomla.org/images/homepage/scalahosting-light.svg — 200 — 2.2 KiB — 26 ms — h2https://www.joomla.org/images/homepage/cloudaccess.svg?=nwww.joomla.org/images/homepage/clou... https://www.joomla.org/images/homepage/cloudaccess.svg?=n — 200 — 9.1 KiB — 25 ms — h2https://www.joomla.org/media/templates/site/joomla/js/blockadblock.js?3.2.1www.joomla.org/media/templates/site... https://www.joomla.org/media/templates/site/joomla/js/blockadblock.js?3.2.1 — 200 — 2.1 KiB — 25 ms — h2https://www.joomla.org/media/templates/site/joomla/js/js.cookie.js?2.1.4www.joomla.org/media/templates/site... https://www.joomla.org/media/templates/site/joomla/js/js.cookie.js?2.1.4 — 200 — 2.8 KiB — 25 ms — h2https://www.joomla.org/media/vendor/skipto/js/skipto.min.js?4.1.7www.joomla.org/media/vendor/skipto/... 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HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
100% of JavaScript execution is third-party
First-party Third-party 332ms · 13KB · £3/mo
www.joomla.org
Other
Costly
Execution 210ms
Transfer 13 KB
Monthly Cost £2/mo
Unattributable
Other
Optional
Execution 122ms
Transfer 0 KB
Monthly Cost £1/mo

These scripts may cost more than they're worth

  • www.joomla.org adds 210ms and costs ~£2/month

100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.

Why this matters

When third-party JS execution time exceeds your own, performance gains from frontend work are capped by code you don't own.

Learn more

Every millisecond of third-party JS competes with your own for main-thread time. If their share is bigger than yours, optimization on your code base barely moves the needle. Audit, defer, or remove third-parties before further frontend optimization. Use Lighthouse's third-party audit to identify the worst offenders.

Source: web.dev

www.joomla.org takes 210ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

How third-party costs are calculated

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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