Performance
· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
5.25 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
16.59 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
928 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.
6.94 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.
16.86 s
Page Load Progression
FPage Weight BudgetAction2.9 MB transferred, 60 requestsFIX
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
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.
JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.
Source: web.dev
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
DJS Execution CostAction2358ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://cc.cdn.civiccomputing.com/9/cookieControl-9.x.min.js?ver=6.8.5 | 434ms | 351ms | 59ms | 3rd |
| Unattributable | 387ms | 8ms | 0ms | 3rd |
| https://www.amnesty.org/en/wp-content/themes/humanity-theme/assets/scripts/bundle.js?ver=3.0.3 | 333ms | 44ms | 6ms | 3rd |
| https://js.stripe.com/clover/stripe.js?ver=clover | 328ms | 185ms | 142ms | 3rd |
| https://www.amnesty.org/en/ | 324ms | 33ms | 7ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-MH9W89&ver=1.0.0 | 238ms | 189ms | 43ms | 3rd |
| https://cdn-eu.pagesense.io/js/amnestyinternational/a9ce5c8e3e61437682525db5403e1431.js | 196ms | 168ms | 26ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-812734679&cx=c>m=4e64h1 | 118ms | 82ms | 35ms | 3rd |
DJS BundlesAction19 scripts, 419 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://js.stripe.com/clover/stripe.js?ver=clover | 225 KB | 164 KB (73%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-812734679&cx=c>m=4e64h1 | 137 KB | 83 KB (61%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-MH9W89&ver=1.0.0 | 155 KB | 80 KB (52%) | ✓ | 3rd |
| https://cc.cdn.civiccomputing.com/9/cookieControl-9.x.min.js?ver=6.8.5 | 123 KB | 57 KB (47%) | ✓ | 3rd |
| https://cdn-eu.pagesense.io/js/amnestyinternational/a9ce5c8e3e61437682525db5403e1431.js | 72 KB | 35 KB (49%) | ✓ | 3rd |
| https://www.amnesty.org/en/wp-content/themes/humanity-theme/assets/scripts/bundle.js?ver=3.0.3 | 25 KB | — | ✓ | 3rd |
| https://www.amnesty.org/en/wp-content/plugins/wp-plugin-amnesty-branding/assets/scripts/frontend.js?ver=3.0.1 | 2 KB | — | ✓ | 3rd |
| https://www.amnesty.org/en/wp-includes/js/dist/i18n.min.js?ver=5e580eb46a90c2b997e6 | 5 KB | — | ✓ | 3rd |
| https://www.amnesty.org/en/wp-content/plugins/wp-plugin-theme-companion/assets/scripts/front.js?ver=4.1.1 | 2 KB | — | ✓ | 3rd |
| https://www.amnesty.org/en/wp-content/plugins/wp-plugin-amnesty-branding/assets/scripts/siteeditor.js?ver=3.0.1 | 2 KB | — | ✓ | 3rd |
Consider code splitting or tree shaking to reduce unused code.
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.
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.
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.
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.
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
FPage Weight InventoryAction60 resources · 2.9 MB · 419 KB savings availableFIX
~419.5 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 60 resources | 2.9 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization18 images, 0 KB saveableREVIEW
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Text CompressionAll text resources are compressedPASS
A+Font Loading2 fonts (52 KB)PASS
Web fonts
2
52 KB total
Render-blocking
0
of 2
Dominant font-display
swap
Most common across fonts
Font loading timeline
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 CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall60 requests over 2685msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
cc.cdn.civiccomputing.com cc.cdn.civiccomputing.com | Other | 434ms | 123 KB | 47% | $6/mo | Costly |
Unattributable Unattributable | Other | 387ms | 0 KB | — | $5/mo | Costly |
www.amnesty.org www.amnesty.org | Other | 333ms | 25 KB | — | $4/mo | Costly |
Stripe js.stripe.com | Payment | 328ms | 225 KB | 73% | $4/mo | Essential |
www.amnesty.org www.amnesty.org | Other | 324ms | 26 KB | — | $4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 238ms | 155 KB | 52% | $3/mo | Costly |
cdn-eu.pagesense.io cdn-eu.pagesense.io | Other | 196ms | 72 KB | 49% | $3/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 118ms | 137 KB | 61% | $2/mo | Optional |
These scripts may cost more than they're worth
- cc.cdn.civiccomputing.com adds 434ms and costs ~$6/month
- Unattributable adds 387ms and costs ~$5/month
- www.amnesty.org adds 333ms and costs ~$4/month
- www.amnesty.org adds 324ms and costs ~$4/month
- Google Tag Manager adds 238ms and costs ~$3/month
100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.
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
cc.cdn.civiccomputing.com takes 434ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Unattributable takes 387ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
www.amnesty.org takes 333ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
73% of Stripe's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
www.amnesty.org takes 324ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Google Tag Manager takes 238ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
52% of Google Tag Manager's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
61% of Google Tag Manager's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev