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Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
71
GRADE
C
FIX
4
REVIEW
4
PASS
5
INFO
2

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

Mobile Desktop
63
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.
81
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.

1.21 s

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

14.03 s

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

32 ms

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

0.008

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

5.57 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.

14.27 s

Page Load Progression

505 ms
1.0 s
1.5 s
2.0 s
2.5 s
3.0 s
3.5 s
4.0 s
Checks
15
5 PASS 4 REVIEW 4 FIX
F
Page Weight Budget
Action
18.8 MB transferred, 76 requests
FIX
18.8 MB transferred, 76 requests
Critical::
Page weighs 20.3 MB (18.8 MB transferred)
Warning::
Images are 18.1 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 18.1 MB
Warning::
JavaScript is 515 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 515 KB
Info::
76 HTTP requests
Info::
Estimated 4.0 g CO2 per page load
18.8 MB / 2.4 MB budget
18.8 MB transferred
76 requests
4.0 g CO2 per page load
Images 18.1 MiB 96%
JavaScript 515.3 KiB 3%
Fonts 116.0 KiB 1%
CSS 91.1 KiB 0%
HTML 65.9 KiB 0%
Other 1.5 KiB 0%
Other 1018 B 0%
Other 545 B 0%
0 2.4 MB 4.9 MB
Over budget

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

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

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 (18.8 MiB of 18.8 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
Page Weight Inventory
Action
76 resources · 18.8 MB · 220 KB savings available
FIX
76 resources · 18.8 MB · 220 KB savings available
Warning::
Page weight 17.8 MB over 1MB target
Got: 18.8 MB Expected: ≤ 1 MB
Info::
~220 KB of savings available
Warning::
75 third-party resources (100% of weight)
Info::
7 resources over 200KB
76 resources · 18.8 MiB · 75 third-party 17.8 MiB over 1MB target
Image 96% · 18.1 MiB
JavaScript 3% · 515.3 KiB
Font 1% · 116.0 KiB
CSS 0% · 91.1 KiB
Document 0% · 65.9 KiB
Other 0% · 2.0 KiB

~220.4 KiB of savings available

Remove unused JavaScript: 220.4 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.

C
Image Optimization
Action
40 images, 0 KB saveable
REVIEW
40 images, 0 KB saveable
Warning::
https://thenai.org/wp-content/uploads/2021/07/NAI_... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://thenai.org/wp-content/uploads/2021/06/NAI_... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
40 images 18.1 MB
0 oversized -0 KB
15 legacy format
2 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

C
JS Execution Cost
Action
1233ms total JS execution
REVIEW
1233ms total JS execution
Warning::
https://thenai.org/wp-content/themes/nai/public/sc...: 341ms CPU time
Warning::
https://thenai.org/: 270ms CPU time
Info::
Unattributable: 233ms CPU time
Info::
https://thenai.org/wp-includes/js/jquery/jquery.mi...: 192ms CPU time
Info::
https://thenai.org/wp-content/themes/nai/public/sc...: 128ms CPU time
Warning::
Third-party scripts: 1233ms (100% of total)

Main Thread Breakdown

Other 35% Script Evaluation 32% Style & Layout 21% Rendering 7% Script Parsing & Compilation 3%
ScriptTotalScriptingParse/CompileParty
https://thenai.org/wp-content/themes/nai/public/scripts/vendor.js?id=b2d0069dd848877c1afe341ms45ms19ms3rd
https://thenai.org/270ms20ms3ms3rd
Unattributable233ms19ms0ms3rd
https://thenai.org/wp-includes/js/jquery/jquery.min.js?ver=3.7.1192ms126ms2ms3rd
https://thenai.org/wp-content/themes/nai/public/scripts/app.js?id=18eb3207c4c4e2e5278b128ms70ms1ms3rd
https://thenai.org/cdn-cgi/challenge-platform/scripts/jsd/main.js68ms60ms1ms3rd
C
JS Bundles
Action
15 scripts, 220 KB unused
REVIEW
15 scripts, 220 KB unused
Warning::
https://thenai.org/wp-content/themes/nai/public/sc...: 73 KB unused (52%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=UA-247...: 64 KB unused (51%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-SSJY...: 63 KB unused (43%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://static.addtoany.com/menu/modules/core.ydpp...: 21 KB unused (82%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 220 KB
220 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://thenai.org/wp-content/themes/nai/public/scripts/vendor.js?id=b2d0069dd848877c1afe139 KB73 KB (52%)✓3rd
https://www.googletagmanager.com/gtag/js?id=UA-2473248-1125 KB64 KB (51%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-SSJYM8RFWF&cx=c&gtm=4e64f0146 KB63 KB (43%)✓3rd
https://static.addtoany.com/menu/modules/core.ydpp7jcu.js26 KB21 KB (82%)✓3rd
https://thenai.org/wp-content/plugins/add-to-any/addtoany.min.js?ver=1.10 KB—✓3rd
https://thenai.org/wp-content/plugins/event-tickets/build/js/rsvp.js?ver=dab7c1842d0b66486c7c1 KB—✓3rd
https://thenai.org/wp-content/plugins/event-tickets/build/js/ticket-details.js?ver=effdcbb0319e200f2e6a1 KB—✓3rd
https://thenai.org/wp-content/plugins/the-events-calendar/common/build/js/user-agent.js?ver=da75d0bdea6dde3898df0 KB—✓3rd
https://thenai.org/wp-content/plugins/event-tickets/build/js/rsvp.js?ver=5.27.6.11 KB—✓3rd
https://thenai.org/wp-includes/js/jquery/jquery.min.js?ver=3.7.131 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

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
1 fonts (116 KB)
PASS
1 fonts (116 KB)
Info::
1 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

1

116 KB total

Render-blocking

0

of 1

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 1.2 s LCP 14.0 shttps://thenai.org/wp-content/themes/nai/public/fonts/GT-America-Standard-Bold.otfGT-America-Standard-Bol... https://thenai.org/wp-content/themes/nai/public/fonts/GT-America-Standard-Bold.otf — 116.0 KiB — 72 ms — font-display: swap
GT-America-Standard-Bol... otf swap
Size 116 KB
Load time 72 ms
Start 654 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
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 ~93 KB and ~186 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
Network Waterfall
76 requests over 1729ms
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 1.2 s LCP 14.0 shttps://networkadvertising.org// https://networkadvertising.org/ — 301 — 228 B — 235 ms — h2https://thenai.org/thenai.org/ https://thenai.org/ — 200 — 64.9 KiB — 346 ms — h2https://thenai.org/wp-includes/css/dashicons.min.css?ver=6.9.4thenai.org/wp-includes/css/dashicon... https://thenai.org/wp-includes/css/dashicons.min.css?ver=6.9.4 — 200 — 34.5 KiB — 34 ms — h2https://thenai.org/wp-content/plugins/the-events-calendar/common/build/css/variables-skeleton.css?ver=6.10.3thenai.org/wp-content/plugins/the-e... https://thenai.org/wp-content/plugins/the-events-calendar/common/build/css/variables-skeleton.css?ver=6.10.3 — 200 — 1.0 KiB — 33 ms — h2https://thenai.org/wp-content/plugins/the-events-calendar/common/build/css/variables-full.css?ver=6.10.3thenai.org/wp-content/plugins/the-e... https://thenai.org/wp-content/plugins/the-events-calendar/common/build/css/variables-full.css?ver=6.10.3 — 200 — 663 B — 37 ms — h2https://thenai.org/wp-content/plugins/the-events-calendar/common/build/css/common-skeleton.css?ver=6.10.3thenai.org/wp-content/plugins/the-e... https://thenai.org/wp-content/plugins/the-events-calendar/common/build/css/common-skeleton.css?ver=6.10.3 — 200 — 2.5 KiB — 59 ms — h2https://thenai.org/wp-content/plugins/the-events-calendar/common/build/css/common-full.css?ver=6.10.3thenai.org/wp-content/plugins/the-e... https://thenai.org/wp-content/plugins/the-events-calendar/common/build/css/common-full.css?ver=6.10.3 — 200 — 4.5 KiB — 57 ms — h2https://thenai.org/wp-content/plugins/event-tickets/build/css/tickets.css?ver=5.27.6.1thenai.org/wp-content/plugins/event... https://thenai.org/wp-content/plugins/event-tickets/build/css/tickets.css?ver=5.27.6.1 — 200 — 4.2 KiB — 57 ms — h2https://thenai.org/wp-content/plugins/event-tickets/build/css/rsvp-v1.css?ver=5.27.6.1thenai.org/wp-content/plugins/event... https://thenai.org/wp-content/plugins/event-tickets/build/css/rsvp-v1.css?ver=5.27.6.1 — 200 — 3.4 KiB — 43 ms — h2https://thenai.org/wp-content/plugins/event-tickets/build/css/rsvp.css?ver=5.27.6.1thenai.org/wp-content/plugins/event... https://thenai.org/wp-content/plugins/event-tickets/build/css/rsvp.css?ver=5.27.6.1 — 200 — 3.7 KiB — 56 ms — h2https://thenai.org/wp-content/plugins/add-to-any/addtoany.min.css?ver=1.16thenai.org/wp-content/plugins/add-t... https://thenai.org/wp-content/plugins/add-to-any/addtoany.min.css?ver=1.16 — 200 — 595 B — 44 ms — h2https://use.typekit.net/msr3oye.cssuse.typekit.net/msr3oye.css https://use.typekit.net/msr3oye.css — 200 — 1.0 KiB — 65 ms — h2https://thenai.org/wp-includes/css/dist/block-library/style.min.cssthenai.org/wp-includes/css/dist/blo... https://thenai.org/wp-includes/css/dist/block-library/style.min.css — 200 — 15.9 KiB — 46 ms — h2https://thenai.org/wp-content/themes/nai/public/styles/app.css?id=eaaba00d79f6bd14d245thenai.org/wp-content/themes/nai/pu... https://thenai.org/wp-content/themes/nai/public/styles/app.css?id=eaaba00d79f6bd14d245 — 200 — 19.0 KiB — 58 ms — h2https://thenai.org/wp-includes/js/jquery/jquery.min.js?ver=3.7.1thenai.org/wp-includes/js/jquery/jq... https://thenai.org/wp-includes/js/jquery/jquery.min.js?ver=3.7.1 — 200 — 30.9 KiB — 39 ms — h2https://thenai.org/wp-includes/js/jquery/jquery-migrate.min.js?ver=3.4.1thenai.org/wp-includes/js/jquery/jq... https://thenai.org/wp-includes/js/jquery/jquery-migrate.min.js?ver=3.4.1 — 200 — 5.0 KiB — 38 ms — h2https://thenai.org/wp-content/uploads/2021/06/NAI_logo.pngthenai.org/wp-content/uploads/2021/... https://thenai.org/wp-content/uploads/2021/06/NAI_logo.png — 200 — 5.6 KiB — 57 ms — h2https://thenai.org/wp-content/uploads/2021/07/karim-ben-van-F2reN77g_gg-unsplash-min-scaled-e1627589725709.jpgthenai.org/wp-content/uploads/2021/... https://thenai.org/wp-content/uploads/2021/07/karim-ben-van-F2reN77g_gg-unsplash-min-scaled-e1627589725709.jpg — 200 — 148.0 KiB — 58 ms — h2https://thenai.org/wp-content/uploads/2021/07/photo-1596079890701-dd42edf0b7d4-2-scaled.jpgthenai.org/wp-content/uploads/2021/... https://thenai.org/wp-content/uploads/2021/07/photo-1596079890701-dd42edf0b7d4-2-scaled.jpg — 200 — 72.3 KiB — 31 ms — h3https://thenai.org/wp-content/uploads/2025/01/NAI-Framework-Banner_Website-2025-2-e1736802318271.pngthenai.org/wp-content/uploads/2025/... https://thenai.org/wp-content/uploads/2025/01/NAI-Framework-Banner_Website-2025-2-e1736802318271.png — 200 — 1020.8 KiB — 58 ms — h3https://p.typekit.net/p.css?s=1&k=msr3oye&ht=tk&f=139.173.175.176.25136&a=18940737&app=typekit&e=cssp.typekit.net/p.css?s=1&k=msr3oye&h... https://p.typekit.net/p.css?s=1&k=msr3oye&ht=tk&f=139.173.175.176.25136&a=18940737&app=typekit&e=css — 200 — 172 B — 50 ms — h2https://thenai.org/wp-content/uploads/2021/07/photo-1540575467063-178a50c2df87-1-1.jpgthenai.org/wp-content/uploads/2021/... https://thenai.org/wp-content/uploads/2021/07/photo-1540575467063-178a50c2df87-1-1.jpg — 200 — 208.9 KiB — 35 ms — h3https://static.addtoany.com/menu/page.jsstatic.addtoany.com/menu/page.js https://static.addtoany.com/menu/page.js — 200 — 2.2 KiB — 48 ms — h3https://thenai.org/wp-content/plugins/add-to-any/addtoany.min.js?ver=1.1thenai.org/wp-content/plugins/add-t... https://thenai.org/wp-content/plugins/add-to-any/addtoany.min.js?ver=1.1 — 200 — 310 B — 21 ms — h3https://www.googletagmanager.com/gtag/js?id=UA-2473248-1www.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=UA-2473248-1 — 200 — 125.1 KiB — 251 ms — h2https://thenai.org/wp-content/uploads/2025/12/NAI-Summit-2026_Website.pngthenai.org/wp-content/uploads/2025/... https://thenai.org/wp-content/uploads/2025/12/NAI-Summit-2026_Website.png — 200 — 708.3 KiB — 277 ms — h3https://thenai.org/wp-content/uploads/2026/02/Website-Carousel_Health-Factor-Analysis_Feb-2026.gifthenai.org/wp-content/uploads/2026/... https://thenai.org/wp-content/uploads/2026/02/Website-Carousel_Health-Factor-Analysis_Feb-2026.gif — 200 — 10.1 MiB — 658 ms — h3https://thenai.org/wp-content/uploads/2025/03/Benefits-of-Tailored-Ad_Front-Page-2.pngthenai.org/wp-content/uploads/2025/... https://thenai.org/wp-content/uploads/2025/03/Benefits-of-Tailored-Ad_Front-Page-2.png — 200 — 89.9 KiB — 50 ms — h3https://thenai.org/wp-content/uploads/2021/07/nai_square-e1631130910890.pngthenai.org/wp-content/uploads/2021/... https://thenai.org/wp-content/uploads/2021/07/nai_square-e1631130910890.png — 200 — 5.0 KiB — 45 ms — h3https://thenai.org/wp-content/uploads/2025/10/Screenshot-2025-10-06-at-4.47.49-PM.pngthenai.org/wp-content/uploads/2025/... https://thenai.org/wp-content/uploads/2025/10/Screenshot-2025-10-06-at-4.47.49-PM.png — 200 — 22.9 KiB — 45 ms — h3
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s FCP 1.2 s LCP 14.0 shttps://networkadvertising.org// https://networkadvertising.org/ — 301 — 228 B — 235 ms — h2https://thenai.org/thenai.org/ https://thenai.org/ — 200 — 64.9 KiB — 346 ms — h2https://thenai.org/wp-includes/css/dashicons.min.css?ver=6.9.4thenai.org/wp-includes/css/dashicon... https://thenai.org/wp-includes/css/dashicons.min.css?ver=6.9.4 — 200 — 34.5 KiB — 34 ms — h2https://thenai.org/wp-content/plugins/the-events-calendar/common/build/css/variables-skeleton.css?ver=6.10.3thenai.org/wp-content/plugins/the-e... https://thenai.org/wp-content/plugins/the-events-calendar/common/build/css/variables-skeleton.css?ver=6.10.3 — 200 — 1.0 KiB — 33 ms — h2https://thenai.org/wp-content/plugins/the-events-calendar/common/build/css/variables-full.css?ver=6.10.3thenai.org/wp-content/plugins/the-e... https://thenai.org/wp-content/plugins/the-events-calendar/common/build/css/variables-full.css?ver=6.10.3 — 200 — 663 B — 37 ms — h2https://thenai.org/wp-content/plugins/the-events-calendar/common/build/css/common-skeleton.css?ver=6.10.3thenai.org/wp-content/plugins/the-e... https://thenai.org/wp-content/plugins/the-events-calendar/common/build/css/common-skeleton.css?ver=6.10.3 — 200 — 2.5 KiB — 59 ms — h2https://thenai.org/wp-content/plugins/the-events-calendar/common/build/css/common-full.css?ver=6.10.3thenai.org/wp-content/plugins/the-e... https://thenai.org/wp-content/plugins/the-events-calendar/common/build/css/common-full.css?ver=6.10.3 — 200 — 4.5 KiB — 57 ms — h2https://thenai.org/wp-content/plugins/event-tickets/build/css/tickets.css?ver=5.27.6.1thenai.org/wp-content/plugins/event... https://thenai.org/wp-content/plugins/event-tickets/build/css/tickets.css?ver=5.27.6.1 — 200 — 4.2 KiB — 57 ms — h2https://thenai.org/wp-content/plugins/event-tickets/build/css/rsvp-v1.css?ver=5.27.6.1thenai.org/wp-content/plugins/event... 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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 1233ms · 239KB · $16/mo
thenai.org
Other
Costly
Execution 341ms
Transfer 139 KB
Unused 52%
Monthly Cost $5/mo
thenai.org
Other
Costly
Execution 270ms
Transfer 65 KB
Monthly Cost $4/mo
Unattributable
Other
Costly
Execution 233ms
Transfer 0 KB
Monthly Cost $3/mo
thenai.org
Other
Optional
Execution 192ms
Transfer 31 KB
Monthly Cost $3/mo
thenai.org
Other
Optional
Execution 128ms
Transfer 4 KB
Monthly Cost $2/mo
thenai.org
Other
Optional
Execution 68ms
Transfer 0 KB
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • thenai.org adds 341ms and costs ~$5/month
  • thenai.org adds 270ms and costs ~$4/month
  • Unattributable adds 233ms and costs ~$3/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

thenai.org takes 341ms 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

52% of thenai.org'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

thenai.org takes 270ms 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 233ms 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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