Performance
· 15 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.
986 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.73 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
82 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.101
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.18 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.
2.98 s
Page Load Progression
609 ms
1.2 s 1.8 s 2.4 s
3.0 s
3.7 s 4.3 s
4.9 sDPage Weight BudgetAction2.3 MB transferred, 138 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
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.
Source: web.dev
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
DJS BundlesAction48 scripts, 314 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://cdn.cookielaw.org/scripttemplates/202310.1.0/otBannerSdk.js | 103 KB | 58 KB (57%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-TJ3S78NG | 167 KB | 58 KB (35%) | ✓ | 3rd |
| https://connect.facebook.net/en_US/bundle/sdk.js/ | 78 KB | 56 KB (72%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-MRXKVEZ6EL&cx=c>m=4e64h1h1 | 178 KB | 52 KB (29%) | ✓ | 3rd |
| https://connect.facebook.net/en_US/fbevents.js | 97 KB | 34 KB (35%) | ✓ | 3rd |
| https://edge.fullstory.com/s/fs.js | 80 KB | 29 KB (37%) | ✓ | 3rd |
| https://secure.avaaz.org/campaign/static/vendor/leaflet/1.5.1/leaflet.js?1776767609 | 40 KB | 26 KB (65%) | ✓ | 3rd |
| https://secure.avaaz.org/campaign/static/js/language-menu-unified.js?1776767609 | 0 KB | — | ✓ | 3rd |
| https://secure.avaaz.org/campaign/static/js/activity-feed.js?1776767609 | 8 KB | — | ✗ | 3rd |
| https://secure.avaaz.org/campaign/static/js/avaaz-gtm-proxy.js?1776767609 | 4 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
DPage Weight InventoryAction138 resources · 2.3 MB · 314 KB savings availableFIX
~313.8 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 138 resources | 2.3 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CImage OptimizationAction27 images, 0 KB saveableREVIEW
Set explicit width and height to prevent CLS.
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.
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.
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.
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.
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.
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.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
CJS Execution CostAction1314ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtm.js?id=GTM-TJ3S78NG | 244ms | 203ms | 20ms | 3rd |
| Unattributable | 242ms | 6ms | 0ms | 3rd |
| https://secure.avaaz.org/campaign/static/vendor/jquery/3.5.1/jquery.min.js?1776767609 | 225ms | 104ms | 3ms | 3rd |
| https://secure.avaaz.org/page/en/ | 198ms | 21ms | 3ms | 3rd |
| https://edge.fullstory.com/s/fs.js | 187ms | 155ms | 9ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-MRXKVEZ6EL&cx=c>m=4e64h1h1 | 112ms | 94ms | 17ms | 3rd |
| https://connect.facebook.net/en_US/fbevents.js | 56ms | 38ms | 11ms | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202310.1.0/otBannerSdk.js | 50ms | 34ms | 12ms | 3rd |
A+Text CompressionAll text resources are compressedPASS
A+Font Loading1 fonts (42 KB)PASS
Web fonts
1
42 KB total
Render-blocking
0
of 1
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+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall138 requests over 4294msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Google Tag Manager www.googletagmanager.com | Tag Manager | 244ms | 167 KB | 35% | €3/mo | Costly |
Unattributable Unattributable | Other | 242ms | 0 KB | — | €3/mo | Costly |
secure.avaaz.org secure.avaaz.org | Other | 225ms | 30 KB | — | €2/mo | Costly |
secure.avaaz.org secure.avaaz.org | Other | 198ms | 17 KB | — | €2/mo | Optional |
edge.fullstory.com edge.fullstory.com | Other | 187ms | 80 KB | 37% | €2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 112ms | 178 KB | 29% | €1/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 56ms | 97 KB | 35% | €1/mo | Optional |
OneTrust cdn.cookielaw.org | Consent | 50ms | 103 KB | 57% | €1/mo | Essential |
These scripts may cost more than they're worth
- Google Tag Manager adds 244ms and costs ~€3/month
- Unattributable adds 242ms and costs ~€3/month
- secure.avaaz.org adds 225ms and costs ~€2/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
Google Tag Manager takes 244ms 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 242ms 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
secure.avaaz.org takes 225ms 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
57% of OneTrust'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