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Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
69
GRADE
D
FIX
4
REVIEW
3
PASS
8
INFO
2

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

Mobile Desktop
43
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
78
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.
75
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.

9.57 s

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

17.71 s

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

357 ms

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

0.128

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

11.19 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.

17.90 s

Page Load Progression

1.4 s
2.8 s
4.2 s
5.5 s
6.9 s
8.3 s
9.7 s
11.1 s
Checks
17
8 PASS 3 REVIEW 4 FIX
F
Page Weight Budget
Action
3.4 MB transferred, 81 requests
FIX
3.4 MB transferred, 81 requests
Warning::
Page weighs 9.7 MB (3.4 MB transferred)
Warning::
JavaScript is 1.4 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.4 MB
Info::
CSS is 537 KB — consider purging unused styles
Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.
Got: 537 KB
Info::
Fonts are 334 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 334 KB
Info::
81 HTTP requests
Info::
Estimated 0.72 g CO2 per page load
3.4 MB / 2.4 MB budget
3.4 MB transferred
81 requests
0.72 g CO2 per page load
JavaScript 1.4 MiB 41%
Images 941.5 KiB 27%
CSS 537.4 KiB 15%
Fonts 333.9 KiB 9%
Other 228.5 KiB 6%
Other 13.2 KiB 0%
HTML 11.9 KiB 0%
Other 730 B 0%
0 2.4 MB 4.9 MB
Over budget

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

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

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

F
JS Execution Cost
Action
6712ms total JS execution
FIX
6712ms total JS execution
Warning::
https://www.dupont.com/etc.clientlibs/dupont-found...: 2400ms CPU time
Warning::
https://assets.adobedtm.com/21fa3c337531/9dd4b1d7b...: 1117ms CPU time
Warning::
https://www.dupont.com/: 1005ms CPU time
Warning::
https://www.dupont.com/etc.clientlibs/dupont-found...: 969ms CPU time
Warning::
Unattributable: 890ms CPU time
Info::
Third-party scripts: 2338ms (35% of total)

Main Thread Breakdown

Script Evaluation 52% Other 23% Style & Layout 9% Script Parsing & Compilation 9%
ScriptTotalScriptingParse/CompileParty
https://www.dupont.com/etc.clientlibs/dupont-foundation/clientlibs/clientlib-dependencies.min.js2400ms1863ms43ms1st
https://assets.adobedtm.com/21fa3c337531/9dd4b1d7bd35/launch-025f15007675.min.js1117ms899ms107ms3rd
https://www.dupont.com/1005ms37ms5ms1st
https://www.dupont.com/etc.clientlibs/dupont-foundation/clientlibs/clientlib-global.min.js969ms451ms379ms1st
Unattributable890ms5ms0ms3rd
https://consent.trustarc.com/asset/adv-bundle.js?v=v1.7-1729206ms157ms1ms3rd
https://consent.trustarc.com/asset/notice.js/v/v1.7-1729125ms86ms11ms3rd
F
JS Bundles
Action
27 scripts, 886 KB unused
FIX
27 scripts, 886 KB unused
Warning::
https://www.dupont.com/etc.clientlibs/dupont-found...: 581 KB unused (75%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.dupont.com/etc.clientlibs/dupont-found...: unminified — 247 KB could be saved
Warning::
https://www.dupont.com/etc.clientlibs/dupont-found...: 78 KB unused (61%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.dupont.com/etc.clientlibs/clientlibs/g...: 61 KB unused (90%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.dupont.com/etc.clientlibs/dupont-appli...: 55 KB unused (76%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://assets.adobedtm.com/21fa3c337531/9dd4b1d7b...: 36 KB unused (26%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 886 KB
886 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.dupont.com/etc.clientlibs/dupont-foundation/clientlibs/clientlib-global.min.js771 KB581 KB (75%)✗1st
https://www.dupont.com/etc.clientlibs/dupont-foundation/clientlibs/clientlib-dependencies.min.js129 KB78 KB (61%)✓1st
https://www.dupont.com/etc.clientlibs/clientlibs/granite/jquery-ui.min.js69 KB61 KB (90%)✓1st
https://www.dupont.com/etc.clientlibs/dupont-applications/corporate/clientlibs/clientlib-base.min.js73 KB55 KB (76%)✓1st
https://assets.adobedtm.com/21fa3c337531/9dd4b1d7bd35/launch-025f15007675.min.js140 KB36 KB (26%)✓3rd
https://assets.adobedtm.com/21fa3c337531/9dd4b1d7bd35/0d2338c12f6a/EXde23dab7ffdd43f58491836eb932d170-libraryCode_source.min.js36 KB29 KB (83%)✓3rd
https://www.dupont.com/etc.clientlibs/clientlibs/granite/jquery.min.js35 KB24 KB (68%)✓1st
https://consent.trustarc.com/asset/adv-bundle.js?v=v1.7-172978 KB21 KB (27%)✓3rd
https://www.dupont.com/etc.clientlibs/dupont-applications/tyvek/components/structure/footer/clientlibs.min.js1 KB—✓1st
https://www.dupont.com/etc.clientlibs/dupont-campaigns/components/content/header-animated/clientlibs.min.js2 KB—✓1st

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
81 resources · 3.4 MB · 886 KB savings available
FIX
81 resources · 3.4 MB · 886 KB savings available
Warning::
Page weight 2.4 MB over 1MB target
Got: 3.4 MB Expected: ≤ 1 MB
Info::
~886 KB of savings available
Warning::
22 third-party resources (44% of weight)
Info::
4 resources over 200KB
81 resources · 3.4 MiB · 22 third-party 2.4 MiB over 1MB target
JavaScript 48% · 1.6 MiB
Image 27% · 943.1 KiB
CSS 15% · 537.4 KiB
Font 9% · 333.9 KiB
Other 0% · 13.2 KiB
Document 0% · 11.9 KiB

~885.9 KiB of savings available

Remove unused JavaScript: 885.9 KiB
B
Third-Party Impact
44% third-party, 0 ms blocking
REVIEW
44% third-party, 0 ms blocking
Info::
Third-party code accounts for 44% of page weight (1.5 MiB of 3.4 MiB)
Info::
Third-party blocking time is low (0 ms)
56%
44%
First-party Third-party
C
Image Optimization
Action
18 images, 0 KB saveable
REVIEW
18 images, 0 KB saveable
Warning::
https://www.dupont.com/content/dam/dupont/amer/us/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.dupont.com/content/dam/dupont/global-a... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.dupont.com/content/dam/dupont/amer/us/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.dupont.com/content/dam/dupont/amer/us/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
18 images 941 KB
0 oversized -0 KB
13 legacy format
5 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

Performance issues directly impact user engagement and conversion rates.

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

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
9 fonts (334 KB)
PASS
9 fonts (334 KB)
Info::
9 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

9

334 KB total

Render-blocking

0

of 9

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 16.0 s 18.0 s FCP 9.6 s LCP 17.7 shttps://www.dupont.com/etc.clientlibs/dupont-applications/corporate/clientlibs/clientlib-base/source/resources/fonts/Diodrum-Regular.woff2Diodrum-Regular.woff2 https://www.dupont.com/etc.clientlibs/dupont-applications/corporate/clientlibs/clientlib-base/source/resources/fonts/Diodrum-Regular.woff2 — 21.9 KiB — 24 ms — font-display: swaphttps://www.dupont.com/etc.clientlibs/dupont-applications/corporate/clientlibs/clientlib-base/source/resources/fonts/noto-sans-v8-latin-regular.woff2noto-sans-v8-latin-regu... https://www.dupont.com/etc.clientlibs/dupont-applications/corporate/clientlibs/clientlib-base/source/resources/fonts/noto-sans-v8-latin-regular.woff2 — 16.3 KiB — 27 ms — font-display: swaphttps://www.dupont.com/etc.clientlibs/dupont-applications/corporate/clientlibs/clientlib-base/source/resources/fonts/Diodrum-Medium.woff2Diodrum-Medium.woff2 https://www.dupont.com/etc.clientlibs/dupont-applications/corporate/clientlibs/clientlib-base/source/resources/fonts/Diodrum-Medium.woff2 — 21.7 KiB — 24 ms — font-display: swaphttps://use.fontawesome.com/releases/v5.7.2/webfonts/fa-solid-900.woff2fa-solid-900.woff2 https://use.fontawesome.com/releases/v5.7.2/webfonts/fa-solid-900.woff2 — 73.0 KiB — 42 ms — font-display: swaphttps://www.dupont.com/etc.clientlibs/dupont-applications/corporate/clientlibs/clientlib-base/source/resources/fonts/Diodrum-Semibold.woff2Diodrum-Semibold.woff2 https://www.dupont.com/etc.clientlibs/dupont-applications/corporate/clientlibs/clientlib-base/source/resources/fonts/Diodrum-Semibold.woff2 — 22.0 KiB — 25 ms — font-display: swaphttps://www.dupont.com/etc.clientlibs/dupont-foundation/clientlibs/clientlib-dependencies/source/css/fonts/slick.woffslick.woff https://www.dupont.com/etc.clientlibs/dupont-foundation/clientlibs/clientlib-dependencies/source/css/fonts/slick.woff — 797 B — 387 ms — font-display: swaphttps://www.dupont.com/etc.clientlibs/dupont-foundation/clientlibs/clientlib-global/source/resources/fonts/noto-sans-v8-latin-regular.woff2noto-sans-v8-latin-regu... https://www.dupont.com/etc.clientlibs/dupont-foundation/clientlibs/clientlib-global/source/resources/fonts/noto-sans-v8-latin-regular.woff2 — 16.3 KiB — 21 ms — font-display: swaphttps://www.dupont.com/etc.clientlibs/dupont-foundation/clientlibs/clientlib-global/source/resources/fonts/Noto_Sans_Cyrillic/NotoSans-Regular.woff2NotoSans-Regular.woff2 https://www.dupont.com/etc.clientlibs/dupont-foundation/clientlibs/clientlib-global/source/resources/fonts/Noto_Sans_Cyrillic/NotoSans-Regular.woff2 — 161.5 KiB — 22 ms — font-display: swaphttps://www.dupont.com/etc.clientlibs/dupont-foundation/clientlibs/clientlib-dependencies/source/css/fonts/slick.ttfslick.ttf https://www.dupont.com/etc.clientlibs/dupont-foundation/clientlibs/clientlib-dependencies/source/css/fonts/slick.ttf — 458 B — 302 ms — font-display: swap
Diodrum-Regular.woff2 woff2 swap
Size 22 KB
Load time 24 ms
Start 403 ms
Risk FOUT — text flashes from fallback to web font
noto-sans-v8-latin-regu... woff2 swap
Size 16 KB
Load time 27 ms
Start 403 ms
Risk FOUT — text flashes from fallback to web font
Diodrum-Medium.woff2 woff2 swap
Size 22 KB
Load time 24 ms
Start 403 ms
Risk FOUT — text flashes from fallback to web font
fa-solid-900.woff2 woff2 swap
Size 73 KB
Load time 42 ms
Start 403 ms
Risk FOUT — text flashes from fallback to web font
Diodrum-Semibold.woff2 woff2 swap
Size 22 KB
Load time 25 ms
Start 403 ms
Risk FOUT — text flashes from fallback to web font
slick.woff woff swap
Size 1 KB
Load time 387 ms
Start 607 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
noto-sans-v8-latin-regu... woff2 swap
Size 16 KB
Load time 21 ms
Start 621 ms
Risk FOUT — text flashes from fallback to web font
NotoSans-Regular.woff2 woff2 swap
Size 162 KB
Load time 22 ms
Start 664 ms
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
slick.ttf ttf swap
Size 0 KB
Load time 302 ms
Start 1000 ms
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 ~81 KB and ~162 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
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
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
A+
HTTP Caching
max-age=3600 (1 hour)
PASS
max-age=3600 (1 hour)
Info::
Cache-Control header is set
Got: public, max-age=3600
Info::
Effective TTL: 1 hour (max-age=3600)
Info::
ETag present — enables conditional (304) responses
Info::
Last-Modified header present
Cache-Control

public, max-age=3600

DirectiveValueMeaning
public—Any cache may store this response
max-age3600Cache for 1 hour
Effective TTL: 3600 seconds
Network Waterfall
81 requests over 21194ms
INFO
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s 16.0 s 18.0 s 20.0 s 22.0 s FCP 9.6 s LCP 17.7 shttps://www.dupont.com// https://www.dupont.com/ — 200 — 11.9 KiB — 83 ms — h2https://www.dupont.com/etc.clientlibs/dupont-foundation/clientlibs/clientlib-dependencies-react.min.css/etc.clientlibs/dupont-foundation/c... https://www.dupont.com/etc.clientlibs/dupont-foundation/clientlibs/clientlib-dependencies-react.min.css — 200 — 570 B — 33 ms — h2https://www.dupont.com/etc.clientlibs/dupont-foundation/clientlibs/clientlib-dependencies.min.css/etc.clientlibs/dupont-foundation/c... https://www.dupont.com/etc.clientlibs/dupont-foundation/clientlibs/clientlib-dependencies.min.css — 200 — 13.1 KiB — 40 ms — h2https://www.dupont.com/etc.clientlibs/dupont-foundation/clientlibs/clientlib-dependencies-react.min.js/etc.clientlibs/dupont-foundation/c... https://www.dupont.com/etc.clientlibs/dupont-foundation/clientlibs/clientlib-dependencies-react.min.js — 200 — 580 B — 110 ms — h2https://www.dupont.com/etc.clientlibs/clientlibs/granite/jquery.min.js/etc.clientlibs/clientlibs/granite/... https://www.dupont.com/etc.clientlibs/clientlibs/granite/jquery.min.js — 200 — 35.3 KiB — 127 ms — h2https://www.dupont.com/etc.clientlibs/dupont-foundation/clientlibs/clientlib-dependencies.min.js/etc.clientlibs/dupont-foundation/c... https://www.dupont.com/etc.clientlibs/dupont-foundation/clientlibs/clientlib-dependencies.min.js — 200 — 129.0 KiB — 142 ms — h2https://www.dupont.com/etc.clientlibs/clientlibs/granite/jquery-ui.min.css/etc.clientlibs/clientlibs/granite/... https://www.dupont.com/etc.clientlibs/clientlibs/granite/jquery-ui.min.css — 200 — 8.3 KiB — 51 ms — h2https://www.dupont.com/etc.clientlibs/dupont-foundation/clientlibs/clientlib-global.min.css/etc.clientlibs/dupont-foundation/c... https://www.dupont.com/etc.clientlibs/dupont-foundation/clientlibs/clientlib-global.min.css — 200 — 462.5 KiB — 146 ms — h2https://www.dupont.com/etc.clientlibs/dupont-applications/corporate/clientlibs/clientlib-base.min.css/etc.clientlibs/dupont-applications... https://www.dupont.com/etc.clientlibs/dupont-applications/corporate/clientlibs/clientlib-base.min.css — 200 — 22.6 KiB — 67 ms — h2https://www.dupont.com/etc.clientlibs/dupont-applications/tyvek/components/structure/header/clientlib.min.css/etc.clientlibs/dupont-applications... https://www.dupont.com/etc.clientlibs/dupont-applications/tyvek/components/structure/header/clientlib.min.css — 200 — 4.3 KiB — 50 ms — h2https://use.fontawesome.com/releases/v5.7.2/css/all.cssuse.fontawesome.com/releases/v5.7.2... https://use.fontawesome.com/releases/v5.7.2/css/all.css — 200 — 12.7 KiB — 85 ms — h2https://www.dupont.com/etc.clientlibs/dupont-campaigns/components/content/timedcontentcontainer/clientlibs.min.css/etc.clientlibs/dupont-campaigns/co... https://www.dupont.com/etc.clientlibs/dupont-campaigns/components/content/timedcontentcontainer/clientlibs.min.css — 200 — 751 B — 35 ms — h2https://www.dupont.com/etc.clientlibs/dupont-campaigns/components/content/header-animated/clientlibs.min.css/etc.clientlibs/dupont-campaigns/co... https://www.dupont.com/etc.clientlibs/dupont-campaigns/components/content/header-animated/clientlibs.min.css — 200 — 1.6 KiB — 35 ms — h2https://www.dupont.com/etc.clientlibs/dupont-campaigns/components/content/headline/clientlibs.min.css/etc.clientlibs/dupont-campaigns/co... https://www.dupont.com/etc.clientlibs/dupont-campaigns/components/content/headline/clientlibs.min.css — 200 — 845 B — 48 ms — h2https://www.dupont.com/etc.clientlibs/dupont-campaigns/components/content/articlelist/clientlibs.min.css/etc.clientlibs/dupont-campaigns/co... https://www.dupont.com/etc.clientlibs/dupont-campaigns/components/content/articlelist/clientlibs.min.css — 200 — 1.2 KiB — 74 ms — h2https://www.dupont.com/etc.clientlibs/dupont-campaigns/components/content/accordion-horz/clientlibs.min.css/etc.clientlibs/dupont-campaigns/co... https://www.dupont.com/etc.clientlibs/dupont-campaigns/components/content/accordion-horz/clientlibs.min.css — 200 — 1.9 KiB — 58 ms — h2https://www.dupont.com/etc.clientlibs/dupont-campaigns/components/content/header/clientlibs.min.css/etc.clientlibs/dupont-campaigns/co... https://www.dupont.com/etc.clientlibs/dupont-campaigns/components/content/header/clientlibs.min.css — 200 — 2.3 KiB — 48 ms — h2https://www.dupont.com/etc.clientlibs/dupont-applications/tyvek/components/structure/ppfooter/clientlibs.min.css/etc.clientlibs/dupont-applications... https://www.dupont.com/etc.clientlibs/dupont-applications/tyvek/components/structure/ppfooter/clientlibs.min.css — 200 — 2.0 KiB — 74 ms — h2https://www.dupont.com/etc.clientlibs/dupont-applications/tyvek/components/structure/lpfooter/clientlibs.min.css/etc.clientlibs/dupont-applications... https://www.dupont.com/etc.clientlibs/dupont-applications/tyvek/components/structure/lpfooter/clientlibs.min.css — 200 — 570 B — 45 ms — h2https://www.dupont.com/etc.clientlibs/dupont-applications/tyvek/components/structure/footer/clientlibs.min.css/etc.clientlibs/dupont-applications... https://www.dupont.com/etc.clientlibs/dupont-applications/tyvek/components/structure/footer/clientlibs.min.css — 200 — 2.1 KiB — 74 ms — h2https://www.dupont.com/content/dam/dupont/amer/us/en/corporate/general/icons/back-arrow.svg/content/dam/dupont/amer/us/en/corp... https://www.dupont.com/content/dam/dupont/amer/us/en/corporate/general/icons/back-arrow.svg — 200 — 1.1 KiB — 99 ms — h2https://www.dupont.com/content/dam/dupont/global-assets/logos/DuPont_logo_140x55_rgb1.png/content/dam/dupont/global-assets/l... https://www.dupont.com/content/dam/dupont/global-assets/logos/DuPont_logo_140x55_rgb1.png — 200 — 1.9 KiB — 103 ms — h2https://www.dupont.com/content/dam/dupont/amer/us/en/corporate/general/icons/search.png/content/dam/dupont/amer/us/en/corp... https://www.dupont.com/content/dam/dupont/amer/us/en/corporate/general/icons/search.png — 200 — 2.0 KiB — 123 ms — h2https://www.dupont.com/content/dam/dupont/amer/us/en/corporate/general/icons/noun-user.svg/content/dam/dupont/amer/us/en/corp... https://www.dupont.com/content/dam/dupont/amer/us/en/corporate/general/icons/noun-user.svg — 200 — 1.2 KiB — 98 ms — h2https://www.dupont.com/content/dam/dupont/amer/us/en/corporate/general/icons/noun-user-active2.svg/content/dam/dupont/amer/us/en/corp... https://www.dupont.com/content/dam/dupont/amer/us/en/corporate/general/icons/noun-user-active2.svg — 200 — 2.0 KiB — 98 ms — h2https://www.dupont.com/etc.clientlibs/dupont-campaigns/components/content/timedcontentcontainer/clientlibs.min.js/etc.clientlibs/dupont-campaigns/co... 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https://dupont.scene7.com/is/image/Dupont/2026Edison_homepagev3?fmt=png-alpha — 200 — 117.6 KiB — 14 ms — h2https://dupont.scene7.com/is/image/Dupont/discover-carosel?fmt=png-alphadupont.scene7.com/is/image/Dupont/d... https://dupont.scene7.com/is/image/Dupont/discover-carosel?fmt=png-alpha — 200 — 140.6 KiB — 14 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
35% of JavaScript execution is third-party
First-party Third-party 2338ms · 255KB · $31/mo
assets.adobedtm.com
Other
Costly
Execution 1117ms
Transfer 140 KB
Unused 26%
Monthly Cost $15/mo
Unattributable
Other
Costly
Execution 890ms
Transfer 0 KB
Monthly Cost $12/mo
consent.trustarc.com
Other
Costly
Execution 206ms
Transfer 78 KB
Unused 27%
Monthly Cost $3/mo
consent.trustarc.com
Other
Optional
Execution 125ms
Transfer 36 KB
Monthly Cost $2/mo

These scripts may cost more than they're worth

  • assets.adobedtm.com adds 1117ms and costs ~$15/month
  • Unattributable adds 890ms and costs ~$12/month
  • consent.trustarc.com adds 206ms and costs ~$3/month

assets.adobedtm.com takes 1117ms 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 890ms 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

consent.trustarc.com takes 206ms 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

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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