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Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
66
GRADE
D
FIX
4
REVIEW
3
PASS
5
INFO
2

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

Mobile Desktop
25
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
76
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.
77
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.

6.08 s

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

29.72 s

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

13.06 s

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

0.022

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

18.32 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.

45.96 s

Page Load Progression

1.3 s
2.6 s
4.0 s
5.3 s
6.6 s
7.9 s
9.2 s
10.5 s
Checks
14
5 PASS 3 REVIEW 4 FIX
F
Page Weight Budget
Action
23.5 MB transferred, 219 requests
FIX
23.5 MB transferred, 219 requests
Critical::
Page weighs 34.6 MB (23.5 MB transferred)
Warning::
JavaScript is 3.4 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 3.4 MB
Warning::
Images are 2.8 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 2.8 MB
Info::
Fonts are 297 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 297 KB
Warning::
219 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 4.9 g CO2 per page load
23.5 MB / 2.4 MB budget
23.5 MB transferred
219 requests
4.9 g CO2 per page load
Other 16.0 MiB 68%
JavaScript 3.4 MiB 14%
Images 2.8 MiB 12%
Other 397.8 KiB 2%
HTML 301.4 KiB 1%
Fonts 296.6 KiB 1%
Other 219.8 KiB 1%
CSS 84.4 KiB 0%
Other 30.4 KiB 0%
Other 4.2 KiB 0%
Other 284 B 0%
Other 0 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

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Why this matters

Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.

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

Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.

Why this matters

High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.

Source: web.dev

D
Third-Party Impact
Action
92% third-party, 0 ms blocking
FIX
92% third-party, 0 ms blocking
Warning::
Third-party code accounts for 92% of page weight (21.6 MiB of 23.5 MiB)
Info::
Third-party blocking time is low (0 ms)
92%
First-party Third-party
F
JS Execution Cost
Action
28735ms total JS execution
FIX
28735ms total JS execution
Warning::
https://www.nytimes.com/vi-assets/static-assets/ma...: 12154ms CPU time
Warning::
Unattributable: 3045ms CPU time
Warning::
https://www.nytimes.com/: 2343ms CPU time
Warning::
https://static01.nyt.com/video-static/betamax/beta...: 2076ms CPU time
Warning::
https://www.nytimes.com/vi-assets/static-assets/ad...: 1718ms CPU time
Info::
Third-party scripts: 11325ms (39% of total)

Main Thread Breakdown

Script Evaluation 66% Other 17% Script Parsing & Compilation 6% Style & Layout 5%
ScriptTotalScriptingParse/CompileParty
https://www.nytimes.com/vi-assets/static-assets/main-a199ce4d0aae1f18e1f1.js12154ms9786ms467ms1st
Unattributable3045ms413ms0ms3rd
https://www.nytimes.com/2343ms594ms165ms1st
https://static01.nyt.com/video-static/betamax/betamax-shared-sTKBl65Y.js2076ms1568ms0ms3rd
https://www.nytimes.com/vi-assets/static-assets/adslot-4321ed7379557de6ae06.js1718ms1408ms4ms1st
https://warp.media.net/js/tags/clientag.js?cid=8CU26C87G&dn=www.nytimes.com&ysection=home&version=11065ms931ms79ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-P528B3&gtm_auth=tfAzqo1rYDLgYhmTnSjPqw&gtm_preview=env-130&gtm_cookies_win=x1061ms763ms122ms3rd
https://www.nytimes.com/vi-assets/static-assets/vendors~audio~byline~capsule~card~cardpanel~clientSideCapsule~home~livePanel~paidpost~slideshow~vide~2ddd9d4c-113f5b8a83dd67d3884c.js842ms782ms11ms1st
https://static01.nyt.com/video-static/betamax/video-element-lQZyLhgl.js673ms494ms7ms3rd
https://static01.nyt.com/video-static/betamax/player-UG6pU0z7.js662ms144ms4ms3rd

Showing top 10 of 28 scripts

F
JS Bundles
Action
58 scripts, 1.4 MB unused
FIX
58 scripts, 1.4 MB unused
Warning::
https://www.nytimes.com/vi-assets/static-assets/ma...: 397 KB unused (43%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.nytimes.com/vi-assets/static-assets/ho...: 200 KB unused (44%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://static01.nyt.com/video-static/betamax/hlsj...: 140 KB unused (96%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://securepubads.g.doubleclick.net/pagead/mana...: 129 KB unused (71%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.nytimes.com/vi-assets/static-assets/ve...: 91 KB unused (86%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 1.4 MB
1404 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.nytimes.com/vi-assets/static-assets/main-a199ce4d0aae1f18e1f1.js923 KB397 KB (43%)✓1st
https://www.nytimes.com/vi-assets/static-assets/home-ea23c461835fcbe6fad1.js456 KB200 KB (44%)✓1st
https://static01.nyt.com/video-static/betamax/hlsjs-CLmy88XX.js147 KB140 KB (96%)✓3rd
https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202603310101/pubads_impl.js182 KB129 KB (71%)✓3rd
https://www.nytimes.com/vi-assets/static-assets/vendor-a174c85d4d9cb7e7c988.js107 KB91 KB (86%)✓1st
https://www.googletagmanager.com/gtm.js?id=GTM-P528B3&gtm_auth=tfAzqo1rYDLgYhmTnSjPqw&gtm_preview=env-130&gtm_cookies_win=x190 KB70 KB (37%)✓3rd
https://warp.media.net/js/tags/clientag.js?cid=8CU26C87G&dn=www.nytimes.com&ysection=home&version=1193 KB70 KB (36%)✓3rd
https://accounts.google.com/gsi/client93 KB69 KB (75%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-N5P6T9S&gtm=4e6411117 KB64 KB (54%)✓3rd
https://www.googletagmanager.com/gtag/destination?id=DC-5290727&cx=c&gtm=4e6411130 KB60 KB (46%)✓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

B
Image Optimization
19 images, 0 KB saveable
REVIEW
19 images, 0 KB saveable
Info::
All images are well-optimized
19 images 2.8 MB
0 oversized -0 KB
6 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

B
HTTP Caching
s-maxage=30,no-cache
REVIEW
s-maxage=30,no-cache
Info::
Cache-Control header is set
Got: s-maxage=30,no-cache
Info::
CDN TTL: 30 seconds (s-maxage=30)
Info::
Last-Modified header present
Cache-Control

s-maxage=30,no-cache

DirectiveValueMeaning
s-maxage30CDN caches for 30 seconds
no-cache—Cache but always revalidate first
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
12 fonts (297 KB)
PASS
12 fonts (297 KB)
Info::
12 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

12

297 KB total

Render-blocking

0

of 12

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 20.0 s 22.0 s 24.0 s 26.0 s 28.0 s 30.0 s FCP 6.1 s LCP 29.7 shttps://g1.nyt.com/fonts/family/franklin/franklin-normal-700.91eaf6b5642463af4091160b4bbfdfcb.woff2franklin-normal-700.91e... https://g1.nyt.com/fonts/family/franklin/franklin-normal-700.91eaf6b5642463af4091160b4bbfdfcb.woff2 — 20.3 KiB — 0 ms — font-display: swaphttps://g1.nyt.com/fonts/family/franklin/franklin-normal-500.0f4aea3d462cdb64748629efcbbf36bc.woff2franklin-normal-500.0f4... https://g1.nyt.com/fonts/family/franklin/franklin-normal-500.0f4aea3d462cdb64748629efcbbf36bc.woff2 — 19.6 KiB — 0 ms — font-display: swaphttps://g1.nyt.com/fonts/family/franklin/franklin-normal-800.fdc7cad17deeec2db1fe2f9f8c0520ed.woff2franklin-normal-800.fdc... https://g1.nyt.com/fonts/family/franklin/franklin-normal-800.fdc7cad17deeec2db1fe2f9f8c0520ed.woff2 — 23.9 KiB — 0 ms — font-display: swaphttps://g1.nyt.com/fonts/family/cheltenham/cheltenham-normal-700.530cfb72378419eedb60da7e266ad5f1.woff2cheltenham-normal-700.5... https://g1.nyt.com/fonts/family/cheltenham/cheltenham-normal-700.530cfb72378419eedb60da7e266ad5f1.woff2 — 28.1 KiB — 0 ms — font-display: swaphttps://g1.nyt.com/fonts/family/imperial/imperial-normal-400.6131cd77b6e216c7693ed925f4309ffc.woff2imperial-normal-400.613... https://g1.nyt.com/fonts/family/imperial/imperial-normal-400.6131cd77b6e216c7693ed925f4309ffc.woff2 — 26.1 KiB — 0 ms — font-display: swaphttps://g1.nyt.com/fonts/family/franklin/franklin-normal-600.75739ac267f076931c6da9740386ee6b.woff2franklin-normal-600.757... https://g1.nyt.com/fonts/family/franklin/franklin-normal-600.75739ac267f076931c6da9740386ee6b.woff2 — 20.0 KiB — 0 ms — font-display: swaphttps://g1.nyt.com/fonts/family/cheltenham/cheltenham-normal-400.a3ed7afe3eaa0a873f3fbd379f8c491b.woff2cheltenham-normal-400.a... https://g1.nyt.com/fonts/family/cheltenham/cheltenham-normal-400.a3ed7afe3eaa0a873f3fbd379f8c491b.woff2 — 28.9 KiB — 0 ms — font-display: swaphttps://g1.nyt.com/fonts/family/cheltenham-small/cheltenham-small-normal-700.1a0b316424cdebd18086b8dbbc768eef.woff2cheltenham-small-normal... https://g1.nyt.com/fonts/family/cheltenham-small/cheltenham-small-normal-700.1a0b316424cdebd18086b8dbbc768eef.woff2 — 23.6 KiB — 0 ms — font-display: swaphttps://g1.nyt.com/fonts/family/cheltenham-text-cond/cheltenham-text-cond-normal-700.7e78f9e7e6c2e02d82592c4466929fa3.woff2cheltenham-text-cond-no... https://g1.nyt.com/fonts/family/cheltenham-text-cond/cheltenham-text-cond-normal-700.7e78f9e7e6c2e02d82592c4466929fa3.woff2 — 28.4 KiB — 0 ms — font-display: swaphttps://g1.nyt.com/fonts/family/cheltenham/cheltenham-normal-300.7ea91ebd036309e1fe756ee3aab272da.woff2cheltenham-normal-300.7... https://g1.nyt.com/fonts/family/cheltenham/cheltenham-normal-300.7ea91ebd036309e1fe756ee3aab272da.woff2 — 26.9 KiB — 0 ms — font-display: swaphttps://g1.nyt.com/fonts/family/karnak/karnak-normal-700.4a0c7e79ac2f009f12f9106482c961c4.woff2karnak-normal-700.4a0c7... https://g1.nyt.com/fonts/family/karnak/karnak-normal-700.4a0c7e79ac2f009f12f9106482c961c4.woff2 — 23.1 KiB — 0 ms — font-display: swaphttps://g1.nyt.com/fonts/family/cheltenham/cheltenham-italic-400.0020c60e1c956444040efc53cd3e7be0.woff2cheltenham-italic-400.0... https://g1.nyt.com/fonts/family/cheltenham/cheltenham-italic-400.0020c60e1c956444040efc53cd3e7be0.woff2 — 27.7 KiB — 0 ms — font-display: swap
franklin-normal-700.91e... woff2 swap
Size 20 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
franklin-normal-500.0f4... woff2 swap
Size 20 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
franklin-normal-800.fdc... woff2 swap
Size 24 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
cheltenham-normal-700.5... woff2 swap
Size 28 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
imperial-normal-400.613... woff2 swap
Size 26 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
franklin-normal-600.757... woff2 swap
Size 20 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
cheltenham-normal-400.a... woff2 swap
Size 29 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
cheltenham-small-normal... woff2 swap
Size 24 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
cheltenham-text-cond-no... woff2 swap
Size 28 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
cheltenham-normal-300.7... woff2 swap
Size 27 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
karnak-normal-700.4a0c7... woff2 swap
Size 23 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
cheltenham-italic-400.0... woff2 swap
Size 28 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
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 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
1 hints, 0 missing preconnects
PASS
1 hints, 0 missing preconnects
Info::
Page uses 1 resource hint(s)

Current Resource Hints

preconnect
1
preload
—
dns-prefetch
—
prefetch
—

1 resource hints configured

Network Waterfall
219 requests over 0ms
INFO

Performance analysis not available for this result.

Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
39% of JavaScript execution is third-party
First-party Third-party 11325ms · 1544KB · €123/mo
Unattributable
Other
Costly
Execution 3045ms
Transfer 0 KB
Monthly Cost €33/mo
static01.nyt.com
Other
Costly
Execution 2076ms
Transfer 21 KB
Monthly Cost €23/mo
warp.media.net
Other
Costly
Execution 1065ms
Transfer 193 KB
Unused 36%
Monthly Cost €12/mo
Google Tag Manager
Tag Manager
Costly
Execution 1061ms
Transfer 190 KB
Unused 37%
Monthly Cost €12/mo
static01.nyt.com
Other
Costly
Execution 673ms
Transfer 2 KB
Monthly Cost €7/mo
static01.nyt.com
Other
Costly
Execution 662ms
Transfer 13 KB
Monthly Cost €7/mo
dd.nytimes.com
Other
Costly
Execution 400ms
Transfer 43 KB
Monthly Cost €4/mo
securepubads.g.doubleclick.net
Other
Costly
Execution 336ms
Transfer 182 KB
Unused 71%
Monthly Cost €4/mo
Google Tag Manager
Tag Manager
Costly
Execution 332ms
Transfer 130 KB
Unused 46%
Monthly Cost €4/mo
c.amazon-adsystem.com
Other
Costly
Execution 275ms
Transfer 90 KB
Unused 41%
Monthly Cost €3/mo
www.datadoghq-browser-agent.com
Other
Costly
Execution 253ms
Transfer 58 KB
Unused 50%
Monthly Cost €3/mo
static.chartbeat.com
Other
Optional
Execution 194ms
Transfer 25 KB
Monthly Cost €2/mo
securepubads.g.doubleclick.net
Other
Optional
Execution 170ms
Transfer 34 KB
Unused 70%
Monthly Cost €2/mo
rumcdn.geoedge.be
Other
Optional
Execution 168ms
Transfer 192 KB
Monthly Cost €2/mo
Google Tag Manager
Tag Manager
Optional
Execution 104ms
Transfer 117 KB
Unused 54%
Monthly Cost €1/mo
cdn.brandmetrics.com
Other
Optional
Execution 87ms
Transfer 20 KB
Monthly Cost €1/mo
launchpad.privacymanager.io
Other
Optional
Execution 85ms
Transfer 45 KB
Monthly Cost €1/mo
accounts.google.com
Other
Optional
Execution 84ms
Transfer 93 KB
Unused 75%
Monthly Cost €1/mo
pay.google.com
Other
Optional
Execution 70ms
Transfer 59 KB
Unused 43%
Monthly Cost €1/mo
rumcdn.geoedge.be
Other
Optional
Execution 68ms
Transfer 7 KB
Monthly Cost €1/mo
platform.iteratehq.com
Other
Optional
Execution 59ms
Transfer 26 KB
Monthly Cost €1/mo
launchpad-wrapper.privacymanager.io
Other
Optional
Execution 57ms
Transfer 2 KB
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • Unattributable adds 3045ms and costs ~€33/month
  • static01.nyt.com adds 2076ms and costs ~€23/month
  • warp.media.net adds 1065ms and costs ~€12/month
  • Google Tag Manager adds 1061ms and costs ~€12/month
  • static01.nyt.com adds 673ms and costs ~€7/month
  • static01.nyt.com adds 662ms and costs ~€7/month
  • dd.nytimes.com adds 400ms and costs ~€4/month
  • securepubads.g.doubleclick.net adds 336ms and costs ~€4/month
  • Google Tag Manager adds 332ms and costs ~€4/month
  • c.amazon-adsystem.com adds 275ms and costs ~€3/month
  • www.datadoghq-browser-agent.com adds 253ms and costs ~€3/month

Unattributable takes 3045ms 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

static01.nyt.com takes 2076ms 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

warp.media.net takes 1065ms 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

Google Tag Manager takes 1061ms 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

static01.nyt.com takes 673ms 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

static01.nyt.com takes 662ms 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

dd.nytimes.com takes 400ms 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

securepubads.g.doubleclick.net takes 336ms 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

71% of securepubads.g.doubleclick.net'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

Google Tag Manager takes 332ms 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

c.amazon-adsystem.com takes 275ms 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.datadoghq-browser-agent.com takes 253ms 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

50% of www.datadoghq-browser-agent.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

70% of securepubads.g.doubleclick.net'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

54% of Google Tag Manager'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

75% of accounts.google.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

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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