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.
3.61 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
17.42 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
5.14 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.230
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
8.40 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.
32.37 s
Page Load Progression
FPage Weight BudgetAction4.4 MB transferred, 108 requestsFIX
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
Subset fonts to include only used characters, or switch to system font stacks.
Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).
Source: web.dev font loading
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
FJS Execution CostAction13223ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://wac-web.prod-east.frontend.public.atl-paas.net/assets/404.d7674a48.js | 7701ms | 6853ms | 23ms | 3rd |
| Unattributable | 2034ms | 361ms | 0ms | 3rd |
| https://www.atlassian.com/software | 1698ms | 51ms | 54ms | 3rd |
| https://js.intercomcdn.com/frame-modern.b7b766ac.js | 531ms | 459ms | 70ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-5RJSBR | 465ms | 386ms | 76ms | 3rd |
| https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 344ms | 224ms | 107ms | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202503.2.0/otBannerSdk.js | 335ms | 241ms | 53ms | 3rd |
| https://atl-onetrust-wrapper.atlassian.com/assets/atl-onetrust-wrapper.min.js | 63ms | 49ms | 9ms | 3rd |
| https://js.intercomcdn.com/vendor-modern.df860bed.js | 52ms | 2ms | 48ms | 3rd |
FJS BundlesAction41 scripts, 2.1 MB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://wac-web.prod-east.frontend.public.atl-paas.net/assets/404.d7674a48.js | 1811 KB | 1047 KB (58%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 0 KB | 177 KB (49%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 362 KB | 177 KB (49%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 362 KB | 177 KB (49%) | ✓ | 3rd |
| https://wac-web.prod-east.frontend.public.atl-paas.net/assets/index.3ed6b03c.js | 183 KB | 140 KB (78%) | ✓ | 3rd |
| https://js.intercomcdn.com/frame-modern.b7b766ac.js | 193 KB | 138 KB (72%) | ✓ | 3rd |
| https://js.intercomcdn.com/vendor-modern.df860bed.js | 144 KB | 91 KB (64%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-5RJSBR | 190 KB | 75 KB (40%) | ✓ | 3rd |
| https://wac-web.prod-east.frontend.public.atl-paas.net/assets/animation-illustration.a9145d1a.js | 80 KB | 66 KB (87%) | ✓ | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202503.2.0/otBannerSdk.js | 117 KB | 61 KB (52%) | ✓ | 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 InventoryAction108 resources · 4.4 MB · 2.1 MB savings availableFIX
~2.1 MiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 108 resources | 4.4 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CImage OptimizationAction17 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
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.
Performance issues directly impact user engagement and conversion rates.
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 Loading9 fonts (288 KB)PASS
Web fonts
9
288 KB total
Render-blocking
0
of 9
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 Hints2 hints, 0 missing preconnectsPASS
Current Resource Hints
2 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall108 requests over 5864msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
wac-web.prod-east.frontend.public.atl-paas.net wac-web.prod-east.frontend.public.atl-paas.net | Other | 7701ms | 1811 KB | 58% | €134/mo | Costly |
Unattributable Unattributable | Other | 2034ms | 0 KB | — | €35/mo | Costly |
www.atlassian.com www.atlassian.com | Other | 1698ms | 163 KB | — | €29/mo | Costly |
js.intercomcdn.com js.intercomcdn.com | Other | 531ms | 193 KB | 72% | €9/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 465ms | 190 KB | 40% | €8/mo | Costly |
www.gstatic.com www.gstatic.com | Other | 344ms | 0 KB | 49% | €6/mo | Costly |
OneTrust cdn.cookielaw.org | Consent | 335ms | 117 KB | 52% | €6/mo | Essential |
atl-onetrust-wrapper.atlassian.com atl-onetrust-wrapper.atlassian.com | Other | 63ms | 28 KB | — | €1/mo | Optional |
js.intercomcdn.com js.intercomcdn.com | Other | 52ms | 144 KB | 64% | €1/mo | Optional |
These scripts may cost more than they're worth
- wac-web.prod-east.frontend.public.atl-paas.net adds 7701ms and costs ~€134/month
- Unattributable adds 2034ms and costs ~€35/month
- www.atlassian.com adds 1698ms and costs ~€29/month
- js.intercomcdn.com adds 531ms and costs ~€9/month
- Google Tag Manager adds 465ms and costs ~€8/month
- www.gstatic.com adds 344ms and costs ~€6/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
wac-web.prod-east.frontend.public.atl-paas.net takes 7701ms 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
58% of wac-web.prod-east.frontend.public.atl-paas.net'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
Unattributable takes 2034ms 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.atlassian.com takes 1698ms 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
js.intercomcdn.com takes 531ms 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
72% of js.intercomcdn.com'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
Google Tag Manager takes 465ms 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.gstatic.com takes 344ms 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 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
64% of js.intercomcdn.com'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