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https://adecco.com

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
74
GRADE
C
FIX
6
REVIEW
2
PASS
7
INFO
2

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

Mobile Desktop
34
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
93
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
77
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.

3.66 s

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

13.83 s

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

1.80 s

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

0.037

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

6.69 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.

14.59 s

Page Load Progression

375 ms
750 ms
1.1 s
1.5 s
1.9 s
2.2 s
2.6 s
3.0 s
Checks
17
7 PASS 2 REVIEW 6 FIX
D
Page Weight Budget
Action
2.1 MB transferred, 74 requests
FIX
2.1 MB transferred, 74 requests
Info::
Page weighs 9.4 MB (2.1 MB transferred)
Warning::
JavaScript is 1.1 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.1 MB
Info::
Fonts are 647 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 647 KB
Info::
CSS is 217 KB — consider purging unused styles
Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.
Got: 217 KB
Info::
74 HTTP requests
Info::
Estimated 0.45 g CO2 per page load
2.1 MB / 2.4 MB budget
2.1 MB transferred
74 requests
0.45 g CO2 per page load
JavaScript 1.1 MiB 50%
Fonts 647.1 KiB 30%
CSS 217.0 KiB 10%
Images 82.3 KiB 4%
Other 60.3 KiB 3%
Other 44.4 KiB 2%
HTML 42.9 KiB 2%
Other 3.2 KiB 0%
0 2.4 MB 4.9 MB
Approaching limit

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

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

Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.

Why this matters

CSS bundle is large — purge unused styles (PurgeCSS, Tailwind JIT) to reduce CSS payload.

Source: web.dev

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 (2.1 MiB of 2.1 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Execution Cost
Action
9374ms total JS execution
FIX
9374ms total JS execution
Warning::
https://www.adecco.com/_next/static/chunks/8600-a1...: 3218ms CPU time
Warning::
https://www.adecco.com/_next/static/chunks/pages/%...: 2433ms CPU time
Warning::
Unattributable: 993ms CPU time
Warning::
https://www.adecco.com/: 721ms CPU time
Warning::
https://www.adecco.com/-/media/project/adecco/glob...: 585ms CPU time
Warning::
Third-party scripts: 9374ms (100% of total)

Main Thread Breakdown

Script Evaluation 45% Other 32% Style & Layout 7% Script Parsing & Compilation 7% Parse HTML & CSS 4%
ScriptTotalScriptingParse/CompileParty
https://www.adecco.com/_next/static/chunks/8600-a133196bc305ac6f.js3218ms1069ms201ms3rd
https://www.adecco.com/_next/static/chunks/pages/%5B%5B...path%5D%5D-8e3fd728f346040b.js2433ms2129ms1ms3rd
Unattributable993ms21ms0ms3rd
https://www.adecco.com/721ms92ms2ms3rd
https://www.adecco.com/-/media/project/adecco/global/wfs/scripts/adecco-rum.js585ms441ms34ms3rd
https://www.adecco.com/_next/static/chunks/framework-09f3afa64952aba4.js360ms195ms48ms3rd
https://www.adecco.com/_next/static/css/2c4362645765f7bb.css346ms0ms0ms3rd
https://www.adecco.com/_next/static/chunks/9256-819243aa66a9ce79.js207ms3ms202ms3rd
https://www.adecco.com/_next/static/chunks/94726e6d-7083b0f02955981f.js183ms24ms7ms3rd
https://cdn.cookielaw.org/scripttemplates/202603.1.0/otBannerSdk.js112ms44ms66ms3rd

Showing top 10 of 13 scripts

D
JS Bundles
Action
32 scripts, 446 KB unused
FIX
32 scripts, 446 KB unused
Warning::
https://www.adecco.com/_next/static/chunks/9256-81...: 194 KB unused (78%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.adecco.com/_next/static/chunks/8600-a1...: 88 KB unused (33%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.cookielaw.org/scripttemplates/202603.1...: 68 KB unused (52%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.adecco.com/-/media/project/adecco/glob...: 39 KB unused (51%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.adecco.com/_next/static/chunks/6822853...: 32 KB unused (89%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 446 KB
446 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.adecco.com/_next/static/chunks/9256-819243aa66a9ce79.js250 KB194 KB (78%)✓3rd
https://www.adecco.com/_next/static/chunks/8600-a133196bc305ac6f.js272 KB88 KB (33%)✓3rd
https://cdn.cookielaw.org/scripttemplates/202603.1.0/otBannerSdk.js130 KB68 KB (52%)✓3rd
https://www.adecco.com/-/media/project/adecco/global/wfs/scripts/adecco-rum.js76 KB39 KB (51%)✓3rd
https://www.adecco.com/_next/static/chunks/6822853c-90589b0344c43c63.js37 KB32 KB (89%)✓3rd
https://www.adecco.com/_next/static/chunks/7d0bf13e-7f77b7d8a5bdba90.js29 KB25 KB (93%)✓3rd
https://www.adecco.com/_next/static/GtcDfsUm1Hf9x1Pnq_326/_ssgManifest.js2 KB—✓3rd
https://www.adecco.com/_next/static/chunks/2078.777c7872ff375991.js11 KB—✓3rd
https://www.adecco.com/_next/static/chunks/e5ddcb4a-12dcdb81593a71f5.js64 KB—✓3rd
https://www.adecco.com/_next/static/chunks/main-4039ee0c909159df.js28 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

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

F
Page Weight Inventory
Action
74 resources · 2.1 MB · 446 KB savings available
FIX
74 resources · 2.1 MB · 446 KB savings available
Warning::
Page weight 1.1 MB over 1MB target
Got: 2.1 MB Expected: ≤ 1 MB
Info::
~446 KB of savings available
Warning::
73 third-party resources (100% of weight)
Info::
2 resources over 200KB
74 resources · 2.1 MiB · 73 third-party 1.1 MiB over 1MB target
JavaScript 50% · 1.1 MiB
Font 32% · 704.3 KiB
CSS 10% · 221.7 KiB
Image 4% · 84.9 KiB
Document 2% · 43.9 KiB
Other 2% · 42.5 KiB

~446.2 KiB of savings available

Remove unused JavaScript: 446.2 KiB
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.

B
Image Optimization
10 images, 0 KB saveable
REVIEW
10 images, 0 KB saveable
Info::
All images are well-optimized
10 images 82 KB
0 oversized -0 KB
8 legacy format
0 missing dimensions CLS risk
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

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
10 fonts (704 KB)
PASS
10 fonts (704 KB)
Info::
10 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

10

704 KB total

Render-blocking

0

of 10

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s FCP 3.7 s LCP 13.8 shttps://www.adecco.com/fonts/tiempos-text-regular.woff2tiempos-text-regular.woff2 https://www.adecco.com/fonts/tiempos-text-regular.woff2 — 52.5 KiB — 43 ms — font-display: swaphttps://www.adecco.com/fonts/adeccoicons.ttfadeccoicons.ttf https://www.adecco.com/fonts/adeccoicons.ttf — 5.4 KiB — 38 ms — font-display: swaphttps://www.adecco.com/fonts/HouschkaHead-DemiBold.otfHouschkaHead-DemiBold.otf https://www.adecco.com/fonts/HouschkaHead-DemiBold.otf — 57.1 KiB — 82 ms — font-display: swaphttps://www.adecco.com/_next/static/media/ZTTalk-Black.f8589c86.ttfZTTalk-Black.f8589c86.ttf https://www.adecco.com/_next/static/media/ZTTalk-Black.f8589c86.ttf — 41.7 KiB — 12 ms — font-display: swaphttps://www.adecco.com/_next/static/media/ZTTalk-SemiExpanded.7198b717.ttfZTTalk-SemiExpanded.719... https://www.adecco.com/_next/static/media/ZTTalk-SemiExpanded.7198b717.ttf — 42.6 KiB — 12 ms — font-display: swaphttps://www.adecco.com/_next/static/media/ZTTalk-BoldSemiExpanded.925f0e28.ttfZTTalk-BoldSemiExpanded... https://www.adecco.com/_next/static/media/ZTTalk-BoldSemiExpanded.925f0e28.ttf — 42.7 KiB — 29 ms — font-display: swaphttps://www.adecco.com/_next/static/media/MaterialIconsRound-Regular.7e36da8e.otfMaterialIconsRound-Regu... https://www.adecco.com/_next/static/media/MaterialIconsRound-Regular.7e36da8e.otf — 188.9 KiB — 34 ms — font-display: swaphttps://www.adecco.com/fonts/houschkahead-demibold-web-woff.woffhouschkahead-demibold-w... https://www.adecco.com/fonts/houschkahead-demibold-web-woff.woff — 108.0 KiB — 29 ms — font-display: swaphttps://www.adecco.com/_next/static/media/Roboto-Regular.298c1099.ttfRoboto-Regular.298c1099... https://www.adecco.com/_next/static/media/Roboto-Regular.298c1099.ttf — 82.3 KiB — 27 ms — font-display: swaphttps://www.adecco.com/_next/static/media/Roboto-Bold.8840acc7.ttfRoboto-Bold.8840acc7.ttf https://www.adecco.com/_next/static/media/Roboto-Bold.8840acc7.ttf — 83.1 KiB — 27 ms — font-display: swap
tiempos-text-regular.woff2 woff2 swap
Size 53 KB
Load time 43 ms
Start 553 ms
Risk FOUT — text flashes from fallback to web font
adeccoicons.ttf ttf swap
Size 5 KB
Load time 38 ms
Start 553 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
HouschkaHead-DemiBold.otf otf swap
Size 57 KB
Load time 82 ms
Start 581 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
ZTTalk-Black.f8589c86.ttf ttf swap
Size 42 KB
Load time 12 ms
Start 769 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
ZTTalk-SemiExpanded.719... ttf swap
Size 43 KB
Load time 12 ms
Start 769 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
ZTTalk-BoldSemiExpanded... ttf swap
Size 43 KB
Load time 29 ms
Start 838 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
MaterialIconsRound-Regu... otf swap
Size 189 KB
Load time 34 ms
Start 838 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
houschkahead-demibold-w... woff swap
Size 108 KB
Load time 29 ms
Start 1.9 s
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
Roboto-Regular.298c1099... ttf swap
Size 82 KB
Load time 27 ms
Start 1.9 s
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
Roboto-Bold.8840acc7.ttf ttf swap
Size 83 KB
Load time 27 ms
Start 1.9 s
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
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 ~344 KB and ~688 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
10 hints, 0 missing preconnects
PASS
10 hints, 0 missing preconnects
Info::
Page uses 10 resource hint(s)

Current Resource Hints

preconnect
—
preload
7
dns-prefetch
—
prefetch
3

10 resource hints configured

A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
Network Waterfall
74 requests over 1970ms
INFO
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s FCP 3.7 s LCP 13.8 shttps://adecco.com// https://adecco.com/ — 301 — 946 B — 470 ms — h2https://www.adecco.com/www.adecco.com/ https://www.adecco.com/ — 200 — 42.9 KiB — 59 ms — h2https://www.adecco.com/fonts/roboto-swap.csswww.adecco.com/fonts/roboto-swap.cs... https://www.adecco.com/fonts/roboto-swap.css — 200 — 2.0 KiB — 26 ms — h2https://www.adecco.com/fonts/material-symbols-outlined-swap.csswww.adecco.com/fonts/material-symbo... https://www.adecco.com/fonts/material-symbols-outlined-swap.css — 200 — 2.1 KiB — 27 ms — h2https://www.adecco.com/fonts/material-icons.csswww.adecco.com/fonts/material-icons... https://www.adecco.com/fonts/material-icons.css — 200 — 1.9 KiB — 27 ms — h2https://www.adecco.com/fonts/tiempos-text-regular.woff2www.adecco.com/fonts/tiempos-text-r... https://www.adecco.com/fonts/tiempos-text-regular.woff2 — 200 — 52.5 KiB — 43 ms — h2https://www.adecco.com/fonts/adeccoicons.ttfwww.adecco.com/fonts/adeccoicons.tt... https://www.adecco.com/fonts/adeccoicons.ttf — 200 — 5.4 KiB — 38 ms — h2https://www.adecco.com/_next/static/css/2c4362645765f7bb.csswww.adecco.com/_next/static/css/2c4... https://www.adecco.com/_next/static/css/2c4362645765f7bb.css — 200 — 165.9 KiB — 82 ms — h2https://www.adecco.com/_next/static/css/d7b4edfe1248b2c8.csswww.adecco.com/_next/static/css/d7b... https://www.adecco.com/_next/static/css/d7b4edfe1248b2c8.css — 200 — 38.7 KiB — 39 ms — h2https://assets.prd.heyflow.com/builder/widget/latest/webview.jsassets.prd.heyflow.com/builder/widg... https://assets.prd.heyflow.com/builder/widget/latest/webview.js — 200 — 17.9 KiB — 113 ms — h2data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7data:image/gif;base64,R0lGODlhAQABA... data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7 — 200 — 0 B — 0 ms — datahttps://cdn.cookielaw.org/scripttemplates/otSDKStub.jscdn.cookielaw.org/scripttemplates/o... https://cdn.cookielaw.org/scripttemplates/otSDKStub.js — 200 — 9.1 KiB — 65 ms — h2https://www.adecco.com/-/media/project/adecco/global/wfs/scripts/adecco-rum.jswww.adecco.com/-/media/project/adec... https://www.adecco.com/-/media/project/adecco/global/wfs/scripts/adecco-rum.js — 200 — 76.4 KiB — 105 ms — h2https://www.adecco.com/_next/static/chunks/webpack-b974cd0f6e00a1df.jswww.adecco.com/_next/static/chunks/... https://www.adecco.com/_next/static/chunks/webpack-b974cd0f6e00a1df.js — 200 — 6.9 KiB — 65 ms — h2https://www.adecco.com/_next/static/chunks/framework-09f3afa64952aba4.jswww.adecco.com/_next/static/chunks/... https://www.adecco.com/_next/static/chunks/framework-09f3afa64952aba4.js — 200 — 44.1 KiB — 88 ms — h2https://www.adecco.com/_next/static/chunks/main-4039ee0c909159df.jswww.adecco.com/_next/static/chunks/... https://www.adecco.com/_next/static/chunks/main-4039ee0c909159df.js — 200 — 27.5 KiB — 72 ms — h2https://www.adecco.com/_next/static/chunks/pages/_app-38ef71e0a8cf8a79.jswww.adecco.com/_next/static/chunks/... https://www.adecco.com/_next/static/chunks/pages/_app-38ef71e0a8cf8a79.js — 200 — 4.9 KiB — 68 ms — h2https://www.adecco.com/_next/static/chunks/6822853c-90589b0344c43c63.jswww.adecco.com/_next/static/chunks/... https://www.adecco.com/_next/static/chunks/6822853c-90589b0344c43c63.js — 200 — 36.8 KiB — 72 ms — h2https://www.adecco.com/_next/static/chunks/e5ddcb4a-12dcdb81593a71f5.jswww.adecco.com/_next/static/chunks/... https://www.adecco.com/_next/static/chunks/e5ddcb4a-12dcdb81593a71f5.js — 200 — 63.7 KiB — 80 ms — h2https://www.adecco.com/_next/static/chunks/7d0bf13e-7f77b7d8a5bdba90.jswww.adecco.com/_next/static/chunks/... https://www.adecco.com/_next/static/chunks/7d0bf13e-7f77b7d8a5bdba90.js — 200 — 28.8 KiB — 62 ms — h2https://www.adecco.com/fonts/HouschkaHead-DemiBold.otfwww.adecco.com/fonts/HouschkaHead-D... https://www.adecco.com/fonts/HouschkaHead-DemiBold.otf — 200 — 57.1 KiB — 82 ms — h2https://cdn.cookielaw.org/cdn.cookielaw.org/ https://cdn.cookielaw.org/ — 400 — 130 B — 252 ms — h2https://cdn.cookielaw.org/scripttemplates/otSDKStub.jscdn.cookielaw.org/scripttemplates/o... https://cdn.cookielaw.org/scripttemplates/otSDKStub.js — 200 — 0 B — 55 ms — h2https://www.adecco.com/_next/static/chunks/94726e6d-7083b0f02955981f.jswww.adecco.com/_next/static/chunks/... https://www.adecco.com/_next/static/chunks/94726e6d-7083b0f02955981f.js — 200 — 20.2 KiB — 59 ms — h2https://www.adecco.com/_next/static/chunks/8600-a133196bc305ac6f.jswww.adecco.com/_next/static/chunks/... https://www.adecco.com/_next/static/chunks/8600-a133196bc305ac6f.js — 200 — 272.5 KiB — 103 ms — h2https://www.adecco.com/_next/static/chunks/9256-819243aa66a9ce79.jswww.adecco.com/_next/static/chunks/... https://www.adecco.com/_next/static/chunks/9256-819243aa66a9ce79.js — 200 — 249.9 KiB — 106 ms — h2https://www.adecco.com/_next/static/chunks/pages/%5B%5B...path%5D%5D-8e3fd728f346040b.jswww.adecco.com/_next/static/chunks/... https://www.adecco.com/_next/static/chunks/pages/%5B%5B...path%5D%5D-8e3fd728f346040b.js — 200 — 2.4 KiB — 61 ms — h2https://www.adecco.com/_next/static/GtcDfsUm1Hf9x1Pnq_326/_buildManifest.jswww.adecco.com/_next/static/GtcDfsU... https://www.adecco.com/_next/static/GtcDfsUm1Hf9x1Pnq_326/_buildManifest.js — 200 — 2.5 KiB — 61 ms — h2https://www.adecco.com/_next/static/GtcDfsUm1Hf9x1Pnq_326/_ssgManifest.jswww.adecco.com/_next/static/GtcDfsU... https://www.adecco.com/_next/static/GtcDfsUm1Hf9x1Pnq_326/_ssgManifest.js — 200 — 1.5 KiB — 61 ms — h2https://www.adecco.com/_next/static/media/ZTTalk-Black.f8589c86.ttfwww.adecco.com/_next/static/media/Z... https://www.adecco.com/_next/static/media/ZTTalk-Black.f8589c86.ttf — 200 — 41.7 KiB — 12 ms — h2
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s FCP 3.7 s LCP 13.8 shttps://adecco.com// https://adecco.com/ — 301 — 946 B — 470 ms — h2https://www.adecco.com/www.adecco.com/ https://www.adecco.com/ — 200 — 42.9 KiB — 59 ms — h2https://www.adecco.com/fonts/roboto-swap.csswww.adecco.com/fonts/roboto-swap.cs... https://www.adecco.com/fonts/roboto-swap.css — 200 — 2.0 KiB — 26 ms — h2https://www.adecco.com/fonts/material-symbols-outlined-swap.csswww.adecco.com/fonts/material-symbo... https://www.adecco.com/fonts/material-symbols-outlined-swap.css — 200 — 2.1 KiB — 27 ms — h2https://www.adecco.com/fonts/material-icons.csswww.adecco.com/fonts/material-icons... https://www.adecco.com/fonts/material-icons.css — 200 — 1.9 KiB — 27 ms — h2https://www.adecco.com/fonts/tiempos-text-regular.woff2www.adecco.com/fonts/tiempos-text-r... https://www.adecco.com/fonts/tiempos-text-regular.woff2 — 200 — 52.5 KiB — 43 ms — 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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 9374ms · 1048KB · CHF148/mo
www.adecco.com
Other
Costly
Execution 3218ms
Transfer 272 KB
Unused 33%
Monthly Cost CHF51/mo
www.adecco.com
Other
Costly
Execution 2433ms
Transfer 2 KB
Monthly Cost CHF38/mo
Unattributable
Other
Costly
Execution 993ms
Transfer 0 KB
Monthly Cost CHF16/mo
www.adecco.com
Other
Costly
Execution 721ms
Transfer 43 KB
Monthly Cost CHF11/mo
www.adecco.com
Other
Costly
Execution 585ms
Transfer 76 KB
Unused 51%
Monthly Cost CHF9/mo
www.adecco.com
Other
Costly
Execution 360ms
Transfer 44 KB
Monthly Cost CHF6/mo
www.adecco.com
Other
Costly
Execution 346ms
Transfer 166 KB
Monthly Cost CHF5/mo
www.adecco.com
Other
Costly
Execution 207ms
Transfer 250 KB
Unused 78%
Monthly Cost CHF3/mo
www.adecco.com
Other
Optional
Execution 183ms
Transfer 20 KB
Monthly Cost CHF3/mo
OneTrust
Consent
Essential
Execution 112ms
Transfer 130 KB
Unused 52%
Monthly Cost CHF2/mo
www.adecco.com
Other
Optional
Execution 87ms
Transfer 28 KB
Monthly Cost CHF1/mo
www.adecco.com
Other
Optional
Execution 66ms
Transfer 16 KB
Monthly Cost CHF1/mo
OneTrust
Consent
Essential
Execution 62ms
Transfer 0 KB
Monthly Cost CHF1/mo

These scripts may cost more than they're worth

  • www.adecco.com adds 3218ms and costs ~CHF51/month
  • www.adecco.com adds 2433ms and costs ~CHF38/month
  • Unattributable adds 993ms and costs ~CHF16/month
  • www.adecco.com adds 721ms and costs ~CHF11/month
  • www.adecco.com adds 585ms and costs ~CHF9/month
  • www.adecco.com adds 360ms and costs ~CHF6/month
  • www.adecco.com adds 346ms and costs ~CHF5/month
  • www.adecco.com adds 207ms and costs ~CHF3/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.adecco.com takes 3218ms 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

www.adecco.com takes 2433ms 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

Unattributable takes 993ms 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

www.adecco.com takes 721ms 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

www.adecco.com takes 585ms 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

51% of www.adecco.com'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

www.adecco.com takes 360ms 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

www.adecco.com takes 346ms 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

www.adecco.com takes 207ms 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

78% of www.adecco.com'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

52% of OneTrust'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.

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