Skip to content
https://us.org

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
78
GRADE
C
FIX
2
REVIEW
5
PASS
6
INFO
2

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

Mobile Desktop
95
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
81
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
81
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.

886 ms

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

1.09 s

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

11 ms

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

0.088

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

886 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.

2.51 s

Page Load Progression

432 ms
864 ms
1.3 s
1.7 s
2.2 s
2.6 s
3.0 s
3.5 s
Checks
15
6 PASS 5 REVIEW 2 FIX
F
Page Weight Budget
Action
5.0 MB transferred, 38 requests
FIX
5.0 MB transferred, 38 requests
Critical::
Page weighs 5.9 MB (5.0 MB transferred)
Warning::
Images are 4.3 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 4.3 MB
Warning::
JavaScript is 596 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 596 KB
Info::
38 HTTP requests
Info::
Estimated 1.1 g CO2 per page load
5.0 MB / 2.4 MB budget
5.0 MB transferred
38 requests
1.1 g CO2 per page load
Images 4.3 MiB 86%
JavaScript 596.3 KiB 12%
CSS 101.1 KiB 2%
Fonts 19.6 KiB 0%
HTML 9.7 KiB 0%
Other 1.6 KiB 0%
Other 458 B 0%
Other 40 B 0%
0 2.4 MB 4.9 MB
Over budget

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Why this matters

Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.

Source: web.dev

Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.

Why this matters

JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.

Source: web.dev

F
HTTP Caching
Action
No cache headers
FIX
No cache headers
Warning::
No Cache-Control header found
Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

C
Image Optimization
Action
19 images, 0 KB saveable
REVIEW
19 images, 0 KB saveable
Warning::
https://us.org/assets/img/domain-comparison-table-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://us.org/assets/img/icons/icon-usorg-seo.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://us.org/assets/img/logos/usorg-white-single... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://us.org/assets/img/logos/usorg-primary.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://us.org/assets/img/icons/icon-usorg-global-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://us.org/assets/img/icons/icon-usorg-dedicat... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://us.org/assets/img/icons/icon-usorg-unmatch... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://us.org/assets/img/icons/usorg-mag-glass-lo... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://us.org/assets/img/icons/icon-usorg-no-rest... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://us.org/assets/img/icons/icon-usorg-ideal-a... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
19 images 4.3 MB
0 oversized -0 KB
19 legacy format
10 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

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

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

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

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 Execution Cost
534ms total JS execution
REVIEW
534ms total JS execution
Info::
Unattributable: 160ms CPU time
Info::
https://us.org/: 119ms CPU time
Info::
https://us.org/assets/js/home.js?v=1.0.1: 74ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-L43H...: 66ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-PZ7W...: 61ms CPU time
Warning::
Third-party scripts: 342ms (64% of total)

Main Thread Breakdown

Script Evaluation 36% Other 36% Style & Layout 14% Script Parsing & Compilation 7% Rendering 5%
ScriptTotalScriptingParse/CompileParty
Unattributable160ms20ms0ms3rd
https://us.org/119ms2ms0ms1st
https://us.org/assets/js/home.js?v=1.0.174ms15ms0ms1st
https://www.googletagmanager.com/gtag/js?id=G-L43H196XDL&cx=c&_slc=166ms52ms13ms3rd
https://www.googletagmanager.com/gtag/js?id=G-PZ7W4HK7M7&cx=c&gtm=4e64k0h261ms45ms14ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-WHPDQJT55ms39ms11ms3rd
C
JS Bundles
Action
10 scripts, 255 KB unused
REVIEW
10 scripts, 255 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-PZ7W...: 66 KB unused (43%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-L43H...: 66 KB unused (45%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-WHP...: 63 KB unused (51%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://us.org/assets/js/lib/jquery-3.5.1.min.js: 60 KB unused (68%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 255 KB
255 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-PZ7W4HK7M7&cx=c&gtm=4e64k0h2155 KB66 KB (43%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-L43H196XDL&cx=c&_slc=1147 KB66 KB (45%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-WHPDQJT125 KB63 KB (51%)✓3rd
https://us.org/assets/js/lib/jquery-3.5.1.min.js88 KB60 KB (68%)✓1st
https://us.org/assets/js/lib/modernizr.min.js?v=1.013 KB—✓1st
https://us.org/assets/js/main.js?v=1.0.15 KB—✗1st
https://us.org/assets/js/lib/underscore.min.js?v=1.0.116 KB—✓1st
https://us.org/assets/js/search.js?v=1.1.016 KB—✗1st
https://us.org/assets/js/home.js?v=1.0.110 KB—✗1st
https://www.google-analytics.com/analytics.js21 KB—✓3rd

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

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

C
Page Weight Inventory
Action
38 resources · 5.0 MB · 255 KB savings available
REVIEW
38 resources · 5.0 MB · 255 KB savings available
Warning::
Page weight 4.0 MB over 1MB target
Got: 5.0 MB Expected: ≤ 1 MB
Info::
~255 KB of savings available
Info::
7 third-party resources (9% of weight)
Info::
5 resources over 200KB
38 resources · 5.0 MiB · 7 third-party 4.0 MiB over 1MB target
Image 86% · 4.3 MiB
JavaScript 12% · 596.3 KiB
CSS 2% · 101.1 KiB
Font 0% · 19.6 KiB
Document 0% · 9.7 KiB
Other 0% · 498 B

~255.1 KiB of savings available

Remove unused JavaScript: 255.1 KiB
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Third-Party Impact
9% third-party, 0 ms blocking
PASS
9% third-party, 0 ms blocking
Info::
Third-party code accounts for 9% of page weight (449.2 KiB of 5.0 MiB)
Info::
Third-party blocking time is low (0 ms)
91%
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+
Font Loading
2 fonts (20 KB)
PASS
2 fonts (20 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

2

20 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 886 ms LCP 1.1 shttps://us.org/assets/fonts/albert-sans/albert-sans-v1-latin-regular.woff2albert-sans-v1-latin-re... https://us.org/assets/fonts/albert-sans/albert-sans-v1-latin-regular.woff2 — 9.7 KiB — 77 ms — font-display: swaphttps://us.org/assets/fonts/albert-sans/albert-sans-v1-latin-900.woff2albert-sans-v1-latin-90... https://us.org/assets/fonts/albert-sans/albert-sans-v1-latin-900.woff2 — 9.8 KiB — 86 ms — font-display: swap
albert-sans-v1-latin-re... woff2 swap
Size 10 KB
Load time 77 ms
Start 475 ms
Risk FOUT — text flashes from fallback to web font
albert-sans-v1-latin-90... woff2 swap
Size 10 KB
Load time 86 ms
Start 476 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+
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
Network Waterfall
38 requests over 1171ms
INFO
0 ms 500 ms 1.0 s FCP 886 ms LCP 1.1 shttps://us.org// https://us.org/ — 200 — 9.7 KiB — 197 ms — http/1.1https://us.org/assets/css/bootstrap-grid.min.css/assets/css/bootstrap-grid.min.css https://us.org/assets/css/bootstrap-grid.min.css — 200 — 50.5 KiB — 125 ms — http/1.1https://us.org/assets/css/style.css?v=1.1.3/assets/css/style.css?v=1.1.3 https://us.org/assets/css/style.css?v=1.1.3 — 200 — 50.6 KiB — 190 ms — http/1.1https://us.org/assets/js/lib/modernizr.min.js?v=1.0/assets/js/lib/modernizr.min.js?v=1... https://us.org/assets/js/lib/modernizr.min.js?v=1.0 — 200 — 12.7 KiB — 188 ms — http/1.1https://us.org/assets/img/logos/usorg-white-single-color.svg/assets/img/logos/usorg-white-singl... https://us.org/assets/img/logos/usorg-white-single-color.svg — 200 — 8.9 KiB — 195 ms — http/1.1https://us.org/assets/img/logos/usorg-primary.svg/assets/img/logos/usorg-primary.svg https://us.org/assets/img/logos/usorg-primary.svg — 200 — 22.6 KiB — 257 ms — http/1.1https://us.org/assets/img/icons/loader.svg/assets/img/icons/loader.svg https://us.org/assets/img/icons/loader.svg — 200 — 3.0 KiB — 67 ms — http/1.1https://us.org/assets/img/icons/icon-usorg-dedicated-space.svg/assets/img/icons/icon-usorg-dedica... https://us.org/assets/img/icons/icon-usorg-dedicated-space.svg — 200 — 5.2 KiB — 72 ms — http/1.1https://us.org/assets/img/icons/icon-usorg-unmatched-avail.svg/assets/img/icons/icon-usorg-unmatc... https://us.org/assets/img/icons/icon-usorg-unmatched-avail.svg — 200 — 5.3 KiB — 70 ms — http/1.1https://us.org/assets/js/lib/jquery-3.5.1.min.js/assets/js/lib/jquery-3.5.1.min.js https://us.org/assets/js/lib/jquery-3.5.1.min.js — 200 — 87.6 KiB — 201 ms — http/1.1https://us.org/assets/js/main.js?v=1.0.1/assets/js/main.js?v=1.0.1 https://us.org/assets/js/main.js?v=1.0.1 — 200 — 5.1 KiB — 108 ms — http/1.1https://www.googletagmanager.com/gtm.js?id=GTM-WHPDQJTwww.googletagmanager.com/gtm.js?id=... https://www.googletagmanager.com/gtm.js?id=GTM-WHPDQJT — 200 — 125.2 KiB — 69 ms — h2https://us.org/assets/js/lib/underscore.min.js?v=1.0.1/assets/js/lib/underscore.min.js?v=... https://us.org/assets/js/lib/underscore.min.js?v=1.0.1 — 200 — 16.3 KiB — 140 ms — http/1.1https://us.org/assets/img/icons/baseline-open_in_new-24px.svg/assets/img/icons/baseline-open_in_... https://us.org/assets/img/icons/baseline-open_in_new-24px.svg — 200 — 795 B — 91 ms — http/1.1https://us.org/assets/fonts/albert-sans/albert-sans-v1-latin-regular.woff2/assets/fonts/albert-sans/albert-sa... https://us.org/assets/fonts/albert-sans/albert-sans-v1-latin-regular.woff2 — 200 — 9.7 KiB — 77 ms — http/1.1https://us.org/assets/fonts/albert-sans/albert-sans-v1-latin-900.woff2/assets/fonts/albert-sans/albert-sa... https://us.org/assets/fonts/albert-sans/albert-sans-v1-latin-900.woff2 — 200 — 9.8 KiB — 86 ms — http/1.1https://us.org/assets/js/search.js?v=1.1.0/assets/js/search.js?v=1.1.0 https://us.org/assets/js/search.js?v=1.1.0 — 200 — 16.1 KiB — 140 ms — http/1.1https://us.org/assets/js/home.js?v=1.0.1/assets/js/home.js?v=1.0.1 https://us.org/assets/js/home.js?v=1.0.1 — 200 — 9.8 KiB — 72 ms — http/1.1https://us.org/assets/img/icons/icon-usorg-no-restrictions.svg/assets/img/icons/icon-usorg-no-res... https://us.org/assets/img/icons/icon-usorg-no-restrictions.svg — 200 — 8.3 KiB — 73 ms — http/1.1https://us.org/assets/img/icons/icon-usorg-seo.svg/assets/img/icons/icon-usorg-seo.sv... https://us.org/assets/img/icons/icon-usorg-seo.svg — 200 — 2.2 KiB — 68 ms — http/1.1https://www.googletagmanager.com/gtag/js?id=G-PZ7W4HK7M7&cx=c&gtm=4e64k0h2www.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-PZ7W4HK7M7&cx=c&gtm=4e64k0h2 — 200 — 155.4 KiB — 70 ms — h2https://www.google-analytics.com/analytics.jswww.google-analytics.com/analytics.... https://www.google-analytics.com/analytics.js — 200 — 20.9 KiB — 33 ms — h2https://us.org/assets/img/icons/icon-usorg-global-trust.svg/assets/img/icons/icon-usorg-global... https://us.org/assets/img/icons/icon-usorg-global-trust.svg — 200 — 7.3 KiB — 67 ms — http/1.1https://us.org/assets/img/icons/icon-usorg-ideal-all-types.svg/assets/img/icons/icon-usorg-ideal-... https://us.org/assets/img/icons/icon-usorg-ideal-all-types.svg — 200 — 4.9 KiB — 75 ms — http/1.1https://us.org/assets/img/icons/oversized-icon-usorg.svg/assets/img/icons/oversized-icon-us... https://us.org/assets/img/icons/oversized-icon-usorg.svg — 200 — 20.3 KiB — 75 ms — http/1.1https://us.org/assets/img/domain-comparison-table-desktop.png/assets/img/domain-comparison-table... https://us.org/assets/img/domain-comparison-table-desktop.png — 200 — 57.3 KiB — 74 ms — http/1.1https://us.org/assets/img/domain-comparison-table-mobile.png/assets/img/domain-comparison-table... https://us.org/assets/img/domain-comparison-table-mobile.png — 200 — 37.7 KiB — 71 ms — http/1.1https://www.google-analytics.com/j/collect?v=1&_v=j102&a=198747652&t=pageview&_s=1&dl=https%3A%2F%2Fus.org%2F&ul=en-us&dt=.US.ORG%20%7C%20The%20Open%20Domain%20for%20Purpose-Driven%20U.S.%20Organizations&sr=800x600&vp=1350x940&_u=YEBAAEABAAAAACAAI~&jid=1931229378&gjid=1836052523&cid=946423124.1776800350&tid=UA-263776482-8&_gid=899990880.1776800350&_r=1&_slc=1&gtm=45He64k0h2n81WHPDQJTv9112432830za200zd9112432830&gcd=13l3l3l3l1l1&dma=0&tag_exp=0~115938465~115938468~117266400&z=1966810901www.google-analytics.com/j/collect?... https://www.google-analytics.com/j/collect?v=1&_v=j102&a=198747652&t=pageview&_s=1&dl=https%3A%2F%2Fus.org%2F&ul=en-us&dt=.US.ORG%20%7C%20The%20Open%20Domain%20for%20Purpose-Driven%20U.S.%20Organizations&sr=800x600&vp=1350x940&_u=YEBAAEABAAAAACAAI~&jid=1931229378&gjid=1836052523&cid=946423124.1776800350&tid=UA-263776482-8&_gid=899990880.1776800350&_r=1&_slc=1&gtm=45He64k0h2n81WHPDQJTv9112432830za200zd9112432830&gcd=13l3l3l3l1l1&dma=0&tag_exp=0~115938465~115938468~117266400&z=1966810901 — 200 — 458 B — 22 ms — h2https://us.org/assets/img/icons/usorg-mag-glass-location.svg/assets/img/icons/usorg-mag-glass-l... https://us.org/assets/img/icons/usorg-mag-glass-location.svg — 200 — 2.1 KiB — 69 ms — http/1.1https://us.org/assets/img/sites/aea_us_org.png/assets/img/sites/aea_us_org.png https://us.org/assets/img/sites/aea_us_org.png — 200 — 1.1 MiB — 420 ms — http/1.1
0 ms 500 ms 1.0 s FCP 886 ms LCP 1.1 shttps://us.org// https://us.org/ — 200 — 9.7 KiB — 197 ms — http/1.1https://us.org/assets/css/bootstrap-grid.min.css/assets/css/bootstrap-grid.min.css https://us.org/assets/css/bootstrap-grid.min.css — 200 — 50.5 KiB — 125 ms — http/1.1https://us.org/assets/css/style.css?v=1.1.3/assets/css/style.css?v=1.1.3 https://us.org/assets/css/style.css?v=1.1.3 — 200 — 50.6 KiB — 190 ms — http/1.1https://us.org/assets/js/lib/modernizr.min.js?v=1.0/assets/js/lib/modernizr.min.js?v=1... https://us.org/assets/js/lib/modernizr.min.js?v=1.0 — 200 — 12.7 KiB — 188 ms — http/1.1https://us.org/assets/img/logos/usorg-white-single-color.svg/assets/img/logos/usorg-white-singl... https://us.org/assets/img/logos/usorg-white-single-color.svg — 200 — 8.9 KiB — 195 ms — http/1.1https://us.org/assets/img/logos/usorg-primary.svg/assets/img/logos/usorg-primary.svg https://us.org/assets/img/logos/usorg-primary.svg — 200 — 22.6 KiB — 257 ms — http/1.1https://us.org/assets/img/icons/loader.svg/assets/img/icons/loader.svg https://us.org/assets/img/icons/loader.svg — 200 — 3.0 KiB — 67 ms — http/1.1https://us.org/assets/img/icons/icon-usorg-dedicated-space.svg/assets/img/icons/icon-usorg-dedica... https://us.org/assets/img/icons/icon-usorg-dedicated-space.svg — 200 — 5.2 KiB — 72 ms — http/1.1https://us.org/assets/img/icons/icon-usorg-unmatched-avail.svg/assets/img/icons/icon-usorg-unmatc... https://us.org/assets/img/icons/icon-usorg-unmatched-avail.svg — 200 — 5.3 KiB — 70 ms — http/1.1https://us.org/assets/js/lib/jquery-3.5.1.min.js/assets/js/lib/jquery-3.5.1.min.js https://us.org/assets/js/lib/jquery-3.5.1.min.js — 200 — 87.6 KiB — 201 ms — http/1.1https://us.org/assets/js/main.js?v=1.0.1/assets/js/main.js?v=1.0.1 https://us.org/assets/js/main.js?v=1.0.1 — 200 — 5.1 KiB — 108 ms — http/1.1https://www.googletagmanager.com/gtm.js?id=GTM-WHPDQJTwww.googletagmanager.com/gtm.js?id=... https://www.googletagmanager.com/gtm.js?id=GTM-WHPDQJT — 200 — 125.2 KiB — 69 ms — h2https://us.org/assets/js/lib/underscore.min.js?v=1.0.1/assets/js/lib/underscore.min.js?v=... https://us.org/assets/js/lib/underscore.min.js?v=1.0.1 — 200 — 16.3 KiB — 140 ms — http/1.1https://us.org/assets/img/icons/baseline-open_in_new-24px.svg/assets/img/icons/baseline-open_in_... https://us.org/assets/img/icons/baseline-open_in_new-24px.svg — 200 — 795 B — 91 ms — http/1.1https://us.org/assets/fonts/albert-sans/albert-sans-v1-latin-regular.woff2/assets/fonts/albert-sans/albert-sa... https://us.org/assets/fonts/albert-sans/albert-sans-v1-latin-regular.woff2 — 200 — 9.7 KiB — 77 ms — http/1.1https://us.org/assets/fonts/albert-sans/albert-sans-v1-latin-900.woff2/assets/fonts/albert-sans/albert-sa... https://us.org/assets/fonts/albert-sans/albert-sans-v1-latin-900.woff2 — 200 — 9.8 KiB — 86 ms — http/1.1https://us.org/assets/js/search.js?v=1.1.0/assets/js/search.js?v=1.1.0 https://us.org/assets/js/search.js?v=1.1.0 — 200 — 16.1 KiB — 140 ms — http/1.1https://us.org/assets/js/home.js?v=1.0.1/assets/js/home.js?v=1.0.1 https://us.org/assets/js/home.js?v=1.0.1 — 200 — 9.8 KiB — 72 ms — http/1.1https://us.org/assets/img/icons/icon-usorg-no-restrictions.svg/assets/img/icons/icon-usorg-no-res... https://us.org/assets/img/icons/icon-usorg-no-restrictions.svg — 200 — 8.3 KiB — 73 ms — http/1.1https://us.org/assets/img/icons/icon-usorg-seo.svg/assets/img/icons/icon-usorg-seo.sv... https://us.org/assets/img/icons/icon-usorg-seo.svg — 200 — 2.2 KiB — 68 ms — http/1.1https://www.googletagmanager.com/gtag/js?id=G-PZ7W4HK7M7&cx=c&gtm=4e64k0h2www.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-PZ7W4HK7M7&cx=c&gtm=4e64k0h2 — 200 — 155.4 KiB — 70 ms — h2https://www.google-analytics.com/analytics.jswww.google-analytics.com/analytics.... https://www.google-analytics.com/analytics.js — 200 — 20.9 KiB — 33 ms — h2https://us.org/assets/img/icons/icon-usorg-global-trust.svg/assets/img/icons/icon-usorg-global... https://us.org/assets/img/icons/icon-usorg-global-trust.svg — 200 — 7.3 KiB — 67 ms — http/1.1https://us.org/assets/img/icons/icon-usorg-ideal-all-types.svg/assets/img/icons/icon-usorg-ideal-... https://us.org/assets/img/icons/icon-usorg-ideal-all-types.svg — 200 — 4.9 KiB — 75 ms — http/1.1https://us.org/assets/img/icons/oversized-icon-usorg.svg/assets/img/icons/oversized-icon-us... https://us.org/assets/img/icons/oversized-icon-usorg.svg — 200 — 20.3 KiB — 75 ms — http/1.1https://us.org/assets/img/domain-comparison-table-desktop.png/assets/img/domain-comparison-table... https://us.org/assets/img/domain-comparison-table-desktop.png — 200 — 57.3 KiB — 74 ms — http/1.1https://us.org/assets/img/domain-comparison-table-mobile.png/assets/img/domain-comparison-table... https://us.org/assets/img/domain-comparison-table-mobile.png — 200 — 37.7 KiB — 71 ms — http/1.1https://www.google-analytics.com/j/collect?v=1&_v=j102&a=198747652&t=pageview&_s=1&dl=https%3A%2F%2Fus.org%2F&ul=en-us&dt=.US.ORG%20%7C%20The%20Open%20Domain%20for%20Purpose-Driven%20U.S.%20Organizations&sr=800x600&vp=1350x940&_u=YEBAAEABAAAAACAAI~&jid=1931229378&gjid=1836052523&cid=946423124.1776800350&tid=UA-263776482-8&_gid=899990880.1776800350&_r=1&_slc=1&gtm=45He64k0h2n81WHPDQJTv9112432830za200zd9112432830&gcd=13l3l3l3l1l1&dma=0&tag_exp=0~115938465~115938468~117266400&z=1966810901www.google-analytics.com/j/collect?... https://www.google-analytics.com/j/collect?v=1&_v=j102&a=198747652&t=pageview&_s=1&dl=https%3A%2F%2Fus.org%2F&ul=en-us&dt=.US.ORG%20%7C%20The%20Open%20Domain%20for%20Purpose-Driven%20U.S.%20Organizations&sr=800x600&vp=1350x940&_u=YEBAAEABAAAAACAAI~&jid=1931229378&gjid=1836052523&cid=946423124.1776800350&tid=UA-263776482-8&_gid=899990880.1776800350&_r=1&_slc=1&gtm=45He64k0h2n81WHPDQJTv9112432830za200zd9112432830&gcd=13l3l3l3l1l1&dma=0&tag_exp=0~115938465~115938468~117266400&z=1966810901 — 200 — 458 B — 22 ms — h2https://us.org/assets/img/icons/usorg-mag-glass-location.svg/assets/img/icons/usorg-mag-glass-l... https://us.org/assets/img/icons/usorg-mag-glass-location.svg — 200 — 2.1 KiB — 69 ms — http/1.1https://us.org/assets/img/sites/aea_us_org.png/assets/img/sites/aea_us_org.png https://us.org/assets/img/sites/aea_us_org.png — 200 — 1.1 MiB — 420 ms — http/1.1https://www.googletagmanager.com/gtag/js?id=G-L43H196XDL&cx=c&_slc=1www.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-L43H196XDL&cx=c&_slc=1 — 200 — 147.1 KiB — 62 ms — h3https://us.org/assets/img/sites/cfth_us_org.png/assets/img/sites/cfth_us_org.png https://us.org/assets/img/sites/cfth_us_org.png — 200 — 913.7 KiB — 391 ms — http/1.1https://us.org/assets/img/sites/macaus_us_org.png/assets/img/sites/macaus_us_org.png https://us.org/assets/img/sites/macaus_us_org.png — 200 — 1.0 MiB — 311 ms — http/1.1https://us.org/assets/img/sites/bemindful_us_org.png/assets/img/sites/bemindful_us_org.... https://us.org/assets/img/sites/bemindful_us_org.png — 200 — 768.4 KiB — 306 ms — http/1.1https://us.org/assets/img/sites/eloiministries_us_org.png/assets/img/sites/eloiministries_us... https://us.org/assets/img/sites/eloiministries_us_org.png — 200 — 425.1 KiB — 184 ms — http/1.1https://www.google-analytics.com/g/collect?v=2&tid=G-PZ7W4HK7M7&gtm=45je64k0h2v9112036221z89112432830za20gzb9112432830zd9112432830&_p=1776800349553&gcd=13l3l3l3l1l1&npa=0&dma=0&are=1&cid=946423124.1776800350&frm=0&pscdl=noapi&rcb=1&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=0~115938465~115938469~117266401&sid=1776800350&sct=1&seg=0&dl=https%3A%2F%2Fus.org%2F&dt=.US.ORG%20%7C%20The%20Open%20Domain%20for%20Purpose-Driven%20U.S.%20Organizations&en=page_view&_fv=1&_ss=1&tfd=809www.google-analytics.com/g/collect?... https://www.google-analytics.com/g/collect?v=2&tid=G-PZ7W4HK7M7&gtm=45je64k0h2v9112036221z89112432830za20gzb9112432830zd9112432830&_p=1776800349553&gcd=13l3l3l3l1l1&npa=0&dma=0&are=1&cid=946423124.1776800350&frm=0&pscdl=noapi&rcb=1&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=0~115938465~115938469~117266401&sid=1776800350&sct=1&seg=0&dl=https%3A%2F%2Fus.org%2F&dt=.US.ORG%20%7C%20The%20Open%20Domain%20for%20Purpose-Driven%20U.S.%20Organizations&en=page_view&_fv=1&_ss=1&tfd=809 — 204 — 20 B — 76 ms — h3https://www.google-analytics.com/g/collect?v=2&tid=G-L43H196XDL&gtm=45je64h1v9114281788za20g&_p=1776800349553&gcd=13l3l3l3l2l1&npa=0&dma=0&_eu=ABAI&are=1&cid=946423124.1776800350&frm=0&pscdl=noapi&rcb=17&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=0~115938465~115938469~117266400~117384406&dl=https%3A%2F%2Fus.org%2F&dt=.US.ORG%20%7C%20The%20Open%20Domain%20for%20Purpose-Driven%20U.S.%20Organizations&sid=1776800350&sct=1&seg=0&_tu=wAQ&en=page_view&_fv=1&_ss=1&_ee=1&gap.uat=0~115938465~115938468~117266400&tfd=879www.google-analytics.com/g/collect?... https://www.google-analytics.com/g/collect?v=2&tid=G-L43H196XDL&gtm=45je64h1v9114281788za20g&_p=1776800349553&gcd=13l3l3l3l2l1&npa=0&dma=0&_eu=ABAI&are=1&cid=946423124.1776800350&frm=0&pscdl=noapi&rcb=17&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=0~115938465~115938469~117266400~117384406&dl=https%3A%2F%2Fus.org%2F&dt=.US.ORG%20%7C%20The%20Open%20Domain%20for%20Purpose-Driven%20U.S.%20Organizations&sid=1776800350&sct=1&seg=0&_tu=wAQ&en=page_view&_fv=1&_ss=1&_ee=1&gap.uat=0~115938465~115938468~117266400&tfd=879 — 204 — 20 B — 21 ms — h3https://us.org/assets/img/favicon-32x32.png?v=3/assets/img/favicon-32x32.png?v=3 https://us.org/assets/img/favicon-32x32.png?v=3 — 200 — 1.6 KiB — 65 ms — http/1.1
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
64% of JavaScript execution is third-party
First-party Third-party 342ms · 428KB · €4/mo
Unattributable
Other
Optional
Execution 160ms
Transfer 0 KB
Monthly Cost €2/mo
Google Tag Manager
Tag Manager
Optional
Execution 66ms
Transfer 147 KB
Unused 45%
Monthly Cost €1/mo
Google Tag Manager
Tag Manager
Optional
Execution 61ms
Transfer 155 KB
Unused 43%
Monthly Cost €1/mo
Google Tag Manager
Tag Manager
Optional
Execution 55ms
Transfer 125 KB
Unused 51%
Monthly Cost €1/mo

64% of JavaScript execution time comes from third-party scripts.

Why this matters

Third-party scripts (analytics, ads, social, A/B testing) often dominate execution time — every one is a perf-and-privacy tax.

Learn more ▾

Each third-party script is a black box: you don't control when it loads, what it executes, or how much it grows. They often account for a major share of total blocking time on average sites (HTTP Archive's Web Almanac documents the trend). Audit which ones you actually need, defer the rest, and use facade patterns (lite-youtube, lite-vimeo) for embedded media.

Source: web.dev / HTTP Archive Web Almanac

51% of Google Tag Manager's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

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.

Send Feedback