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Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
70
GRADE
C
FIX
5
REVIEW
3
PASS
5
INFO
2

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

81
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
64
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
96
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.

1.52 s

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

2.38 s

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

0 ms

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

0.000

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

1.62 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.

2.38 s

Page Load Progression

431 ms
863 ms
1.3 s
1.7 s
2.2 s
2.6 s
3.0 s
3.5 s
Checks
15
5 PASS 3 REVIEW 5 FIX
F
Page Weight Budget
Action
2.7 MB transferred, 47 requests
FIX
2.7 MB transferred, 47 requests
Warning::
Page weighs 6.9 MB (2.7 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 570 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 570 KB
Info::
47 HTTP requests
Info::
Estimated 0.56 g CO2 per page load
2.7 MB / 2.4 MB budget
2.7 MB transferred
47 requests
0.56 g CO2 per page load
JavaScript 1.1 MiB 41%
Other 789.2 KiB 29%
Fonts 570.1 KiB 21%
Images 106.0 KiB 4%
CSS 104.2 KiB 4%
HTML 48.1 KiB 2%
Other 1.3 KiB 0%
Other 548 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

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

D
Third-Party Impact
Action
99% third-party, 0 ms blocking
FIX
99% third-party, 0 ms blocking
Warning::
Third-party code accounts for 99% of page weight (2.6 MiB of 2.7 MiB)
Info::
Third-party blocking time is low (0 ms)
99%
First-party Third-party
F
JS Bundles
Action
12 scripts, 878 KB unused
FIX
12 scripts, 878 KB unused
Warning::
https://www.gstatic.com/recaptcha/releases/gTpTIWh...: 177 KB unused (49%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.gstatic.com/recaptcha/releases/gTpTIWh...: 177 KB unused (49%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.gstatic.com/recaptcha/releases/gTpTIWh...: 177 KB unused (49%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.gstatic.com/recaptcha/releases/gTpTIWh...: 177 KB unused (49%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://d2kfnvwohu0503.cloudfront.net/js/vendor.mi...: 83 KB unused (77%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://d2kfnvwohu0503.cloudfront.net/js/vendor.mi...: unminified — 12 KB could be saved
Info::
Total unused JavaScript: 878 KB
878 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js362 KB177 KB (49%)3rd
https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js362 KB177 KB (49%)3rd
https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js0 KB177 KB (49%)3rd
https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js0 KB177 KB (49%)3rd
https://d2kfnvwohu0503.cloudfront.net/js/vendor.min.js?v=92c177972ce291dec04ec903f691c3925c98292d443820a6cb3eb774e4c1363795dcae3fd7d416e9851999d33538c959de1fe2ebc0725d68104bd0b5b87a195c109 KB83 KB (77%)3rd
https://www.googletagmanager.com/gtag/js?id=G-YY0306L5MG160 KB67 KB (42%)3rd
https://d2kfnvwohu0503.cloudfront.net/js/main.min.js?v=a949851f0a8ee625a7893857b94481360a89b154e60968cdfb2667342b6c89a6ab056d6f7c74759325085c4b84aebb6b3f6044e949fbf3ad737469058a05f0d569 KB21 KB (31%)3rd
https://use.typekit.net/any5kzc.js7 KB3rd
https://d2kfnvwohu0503.cloudfront.net/js/jstz-1.0.4.min.js?v=ff08a13ff22ac21dc4474115a8e084194fc503f8bb9275eefdbd054f0f2fbf86d3a79a83646f4b4c17d56b81755fa7749b5f9ca5770f6efe45f9cdb767479b552 KB3rd
https://d2kfnvwohu0503.cloudfront.net/js/landing.min.js?v=f6bbaa85bda0e2a6ab47a3609523561d2d19d2042b93f15e7d97d65f272799989fabae6f762550c0c947d35d52f5b790926a9cc3437cda6ee59fc090dd06b66e34 KB3rd

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
47 resources · 2.7 MB · 878 KB savings available
FIX
47 resources · 2.7 MB · 878 KB savings available
Warning::
Page weight 1.7 MB over 1MB target
Got: 2.7 MB Expected: ≤ 1 MB
Info::
~878 KB of savings available
Warning::
46 third-party resources (99% of weight)
Info::
3 resources over 200KB
47 resources · 2.7 MiB · 46 third-party 1.7 MiB over 1MB target
JavaScript 41% · 1.1 MiB
Media 29% · 789.2 KiB
Font 21% · 570.1 KiB
Image 4% · 107.3 KiB
CSS 4% · 104.2 KiB
Document 2% · 48.1 KiB
Other 0% · 548 B

~877.6 KiB of savings available

Remove unused JavaScript: 877.6 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.
Info::
ETag present — enables conditional (304) responses

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

C
Image Optimization
Action
12 images, 0 KB saveable
REVIEW
12 images, 0 KB saveable
Warning::
https://d2kfnvwohu0503.cloudfront.net/img/landing_... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://d2kfnvwohu0503.cloudfront.net/img/landing_... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://d2kfnvwohu0503.cloudfront.net/img/landing_... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
12 images 106 KB
0 oversized -0 KB
10 legacy format
3 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

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

B
JS Execution Cost
633ms total JS execution
REVIEW
633ms total JS execution
Warning::
https://www.gstatic.com/recaptcha/releases/gTpTIWh...: 257ms CPU time
Info::
https://instapaper.com/: 135ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-YY03...: 92ms CPU time
Info::
Unattributable: 91ms CPU time
Info::
https://d2kfnvwohu0503.cloudfront.net/js/vendor.mi...: 57ms CPU time
Warning::
Third-party scripts: 498ms (79% of total)

Main Thread Breakdown

Script Evaluation 53% Other 17% Style & Layout 15% Script Parsing & Compilation 12%
ScriptTotalScriptingParse/CompileParty
https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js257ms218ms29ms3rd
https://instapaper.com/135ms7ms1ms1st
https://www.googletagmanager.com/gtag/js?id=G-YY0306L5MG92ms71ms20ms3rd
Unattributable91ms6ms0ms3rd
https://d2kfnvwohu0503.cloudfront.net/js/vendor.min.js?v=92c177972ce291dec04ec903f691c3925c98292d443820a6cb3eb774e4c1363795dcae3fd7d416e9851999d33538c959de1fe2ebc0725d68104bd0b5b87a195c57ms31ms12ms3rd
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
13 fonts (570 KB)
PASS
13 fonts (570 KB)
Info::
13 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

13

570 KB total

Render-blocking

0

of 13

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 1.5 s LCP 2.4 shttps://d2kfnvwohu0503.cloudfront.net/fonts/LyonDisplay-Regular-Web.woffLyonDisplay-Regular-Web... https://d2kfnvwohu0503.cloudfront.net/fonts/LyonDisplay-Regular-Web.woff — 0 B — 80 ms — font-display: swaphttps://use.typekit.net/af/7b0f23/00000000000000003b9adeeb/27/l?subset_id=2&fvd=n4&v=3l https://use.typekit.net/af/7b0f23/00000000000000003b9adeeb/27/l?subset_id=2&fvd=n4&v=3 — 17.2 KiB — 42 ms — font-display: swaphttps://d2kfnvwohu0503.cloudfront.net/fonts/LyonText-Regular-Web.woffLyonText-Regular-Web.woff https://d2kfnvwohu0503.cloudfront.net/fonts/LyonText-Regular-Web.woff — 57.2 KiB — 26 ms — font-display: swaphttps://d2kfnvwohu0503.cloudfront.net/fonts/LyonText-Bold-Web.woffLyonText-Bold-Web.woff https://d2kfnvwohu0503.cloudfront.net/fonts/LyonText-Bold-Web.woff — 58.3 KiB — 16 ms — font-display: swaphttps://use.typekit.net/af/731201/00000000000000003b9adee0/27/l?subset_id=2&fvd=n6&v=3l https://use.typekit.net/af/731201/00000000000000003b9adee0/27/l?subset_id=2&fvd=n6&v=3 — 15.7 KiB — 42 ms — font-display: swaphttps://use.typekit.net/af/61961a/00000000000000000001707c/27/l?subset_id=1&fvd=n7&v=3l https://use.typekit.net/af/61961a/00000000000000000001707c/27/l?subset_id=1&fvd=n7&v=3 — 66.2 KiB — 32 ms — font-display: swaphttps://use.typekit.net/af/6a3278/000000000000000000017080/27/l?subset_id=1&fvd=i4&v=3l https://use.typekit.net/af/6a3278/000000000000000000017080/27/l?subset_id=1&fvd=i4&v=3 — 64.7 KiB — 35 ms — font-display: swaphttps://use.typekit.net/af/d3823a/000000000000000000017087/27/l?subset_id=1&fvd=n4&v=3l https://use.typekit.net/af/d3823a/000000000000000000017087/27/l?subset_id=1&fvd=n4&v=3 — 65.9 KiB — 34 ms — font-display: swaphttps://use.typekit.net/af/f0ee97/00000000000000003b9adee9/27/l?subset_id=2&fvd=i4&v=3l https://use.typekit.net/af/f0ee97/00000000000000003b9adee9/27/l?subset_id=2&fvd=i4&v=3 — 16.9 KiB — 30 ms — font-display: swaphttps://use.typekit.net/af/683819/00000000000000003b9aded3/27/l?subset_id=2&fvd=n7&v=3l https://use.typekit.net/af/683819/00000000000000003b9aded3/27/l?subset_id=2&fvd=n7&v=3 — 15.6 KiB — 32 ms — font-display: swaphttps://d2kfnvwohu0503.cloudfront.net/fonts/LyonDisplay-Regular-Web.ttfLyonDisplay-Regular-Web... https://d2kfnvwohu0503.cloudfront.net/fonts/LyonDisplay-Regular-Web.ttf — 158.5 KiB — 18 ms — font-display: swaphttps://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2KFO7CnqEu92Fr1ME7kSn66a... https://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2 — 33.9 KiB — 25 ms — font-display: swaphttps://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2KFO7CnqEu92Fr1ME7kSn66a... https://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2 — 0 B — 0 ms — font-display: swap
LyonDisplay-Regular-Web... woff swap
Size 0 KB
Load time 80 ms
Start 402 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
l woff2 swap
Size 17 KB
Load time 42 ms
Start 445 ms
Risk FOUT — text flashes from fallback to web font
LyonText-Regular-Web.woff woff swap
Size 57 KB
Load time 26 ms
Start 446 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
LyonText-Bold-Web.woff woff swap
Size 58 KB
Load time 16 ms
Start 446 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
l woff2 swap
Size 16 KB
Load time 42 ms
Start 446 ms
Risk FOUT — text flashes from fallback to web font
l woff2 swap
Size 66 KB
Load time 32 ms
Start 490 ms
Risk FOUT — text flashes from fallback to web font
l woff2 swap
Size 65 KB
Load time 35 ms
Start 490 ms
Risk FOUT — text flashes from fallback to web font
l woff2 swap
Size 66 KB
Load time 34 ms
Start 492 ms
Risk FOUT — text flashes from fallback to web font
l woff2 swap
Size 17 KB
Load time 30 ms
Start 492 ms
Risk FOUT — text flashes from fallback to web font
l woff2 swap
Size 16 KB
Load time 32 ms
Start 493 ms
Risk FOUT — text flashes from fallback to web font
LyonDisplay-Regular-Web... ttf swap
Size 159 KB
Load time 18 ms
Start 509 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
KFO7CnqEu92Fr1ME7kSn66a... woff2 swap
Size 34 KB
Load time 25 ms
Start 1.1 s
Risk FOUT — text flashes from fallback to web font
KFO7CnqEu92Fr1ME7kSn66a... woff2 swap
Size 0 KB
Load time 0 ms
Start 1.8 s
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)

Fixing the unchecked items could save ~161 KB and ~322 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
47 requests over 1850ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 1.5 s LCP 2.4 shttps://instapaper.com// https://instapaper.com/ — 200 — 18.2 KiB — 304 ms — h2https://use.typekit.net/any5kzc.jsuse.typekit.net/any5kzc.js https://use.typekit.net/any5kzc.js — 200 — 6.9 KiB — 22 ms — h2https://d2kfnvwohu0503.cloudfront.net/js/vendor.min.js?v=92c177972ce291dec04ec903f691c3925c98292d443820a6cb3eb774e4c1363795dcae3fd7d416e9851999d33538c959de1fe2ebc0725d68104bd0b5b87a195cd2kfnvwohu0503.cloudfront.net/js/ve... https://d2kfnvwohu0503.cloudfront.net/js/vendor.min.js?v=92c177972ce291dec04ec903f691c3925c98292d443820a6cb3eb774e4c1363795dcae3fd7d416e9851999d33538c959de1fe2ebc0725d68104bd0b5b87a195c — 200 — 108.7 KiB — 60 ms — h2https://d2kfnvwohu0503.cloudfront.net/js/main.min.js?v=a949851f0a8ee625a7893857b94481360a89b154e60968cdfb2667342b6c89a6ab056d6f7c74759325085c4b84aebb6b3f6044e949fbf3ad737469058a05f0d5d2kfnvwohu0503.cloudfront.net/js/ma... https://d2kfnvwohu0503.cloudfront.net/js/main.min.js?v=a949851f0a8ee625a7893857b94481360a89b154e60968cdfb2667342b6c89a6ab056d6f7c74759325085c4b84aebb6b3f6044e949fbf3ad737469058a05f0d5 — 200 — 68.6 KiB — 64 ms — h2https://d2kfnvwohu0503.cloudfront.net/css/main.min.css?v=0448d2b3a16473ecb2c6ab8786348384fd9a82779f243cdd4a5bc8c315e1477df0d945c72dcfa36c574fbe565a204ea3b1280c1fa1e1327c02b7da8330182410d2kfnvwohu0503.cloudfront.net/css/m... https://d2kfnvwohu0503.cloudfront.net/css/main.min.css?v=0448d2b3a16473ecb2c6ab8786348384fd9a82779f243cdd4a5bc8c315e1477df0d945c72dcfa36c574fbe565a204ea3b1280c1fa1e1327c02b7da8330182410 — 200 — 56.7 KiB — 55 ms — h2https://d2kfnvwohu0503.cloudfront.net/css/landing.min.css?v=10f25f976b937ee395e6b38cd972bd6d2a5ea42db27459ef15d5c3d98644b83df4bb398e30af02569d34c959c616ac2ff17767b3cf19e6fa0c542d9a410fd470d2kfnvwohu0503.cloudfront.net/css/l... 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https://www.gstatic.com/recaptcha/api2/logo_48.png — 200 — 2.3 KiB — 5 ms — h2https://www.google.com/recaptcha/enterprise/webworker.js?hl=en&v=gTpTIWhbKpxADzTzkcabhXN4www.google.com/recaptcha/enterprise... https://www.google.com/recaptcha/enterprise/webworker.js?hl=en&v=gTpTIWhbKpxADzTzkcabhXN4 — 200 — 23 B — 228 ms — h3https://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2fonts.gstatic.com/s/roboto/v48/KFO7... https://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2 — 200 — 33.9 KiB — 25 ms — h3https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.jswww.gstatic.com/recaptcha/releases/... https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js — 200 — 0 B — 23 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
79% of JavaScript execution is third-party
First-party Third-party 498ms · 269KB · $7/mo
www.gstatic.com
Other
Costly
Execution 257ms
Transfer 0 KB
Unused 49%
Monthly Cost $3/mo
Google Tag Manager
Tag Manager
Optional
Execution 92ms
Transfer 160 KB
Unused 42%
Monthly Cost $1/mo
Unattributable
Other
Optional
Execution 91ms
Transfer 0 KB
Monthly Cost $1/mo
d2kfnvwohu0503.cloudfront.net
Other
Optional
Execution 57ms
Transfer 109 KB
Unused 77%
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • www.gstatic.com adds 257ms and costs ~$3/month

79% 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.gstatic.com takes 257ms 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

77% of d2kfnvwohu0503.cloudfront.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

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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