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https://crashlytics.com

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
75
GRADE
C
FIX
5
REVIEW
1
PASS
9
INFO
2

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

Mobile Desktop
60
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
99
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.

3.98 s

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

6.27 s

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

273 ms

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

0.060

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

4.99 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.

14.18 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
9 PASS 1 REVIEW 5 FIX
D
Page Weight Budget
Action
2.3 MB transferred, 81 requests
FIX
2.3 MB transferred, 81 requests
Info::
Page weighs 5.9 MB (2.3 MB transferred)
Warning::
Images are 1.0 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 1.0 MB
Warning::
JavaScript is 869 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 869 KB
Info::
Fonts are 201 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 201 KB
Info::
81 HTTP requests
Info::
Estimated 0.49 g CO2 per page load
2.3 MB / 2.4 MB budget
2.3 MB transferred
81 requests
0.49 g CO2 per page load
Images 1.0 MiB 45%
JavaScript 868.5 KiB 36%
Fonts 200.5 KiB 8%
CSS 167.3 KiB 7%
HTML 88.0 KiB 4%
Other 1.2 KiB 0%
Other 1017 B 0%
Other 233 B 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Approaching limit

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

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
100% third-party, 0 ms blocking
FIX
100% third-party, 0 ms blocking
Warning::
Third-party code accounts for 100% of page weight (2.3 MiB of 2.3 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
JS Execution Cost
Action
2797ms total JS execution
FIX
2797ms total JS execution
Warning::
https://firebase.google.com/products/crashlytics/: 904ms CPU time
Warning::
Unattributable: 642ms CPU time
Warning::
https://www.gstatic.com/devrel-devsite/prod/v2f052...: 277ms CPU time
Info::
https://www.googletagmanager.com/gtm.js?id=GTM-KFP...: 225ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-64EQ...: 212ms CPU time
Warning::
Third-party scripts: 2797ms (100% of total)

Main Thread Breakdown

Script Evaluation 39% Other 27% Style & Layout 17% Script Parsing & Compilation 8% Parse HTML & CSS 4% Rendering 3%
ScriptTotalScriptingParse/CompileParty
https://firebase.google.com/products/crashlytics/904ms20ms2ms3rd
Unattributable642ms76ms0ms3rd
https://www.gstatic.com/devrel-devsite/prod/v2f052e0cca7362dede225b85c12aee59eabee5b8fbb05d44fc345ffb54861aec/firebase/js/devsite_app_module.js277ms180ms16ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-KFPLMHC225ms186ms37ms3rd
https://www.googletagmanager.com/gtag/js?id=G-64EQFFKSHW&l=atDataLayer&cx=c&gtm=4e64f0212ms179ms32ms3rd
https://www.gstatic.com/devrel-devsite/prod/v2f052e0cca7362dede225b85c12aee59eabee5b8fbb05d44fc345ffb54861aec/firebase/js/devsite_app_custom_elements_module.js212ms103ms100ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-NDV7K7V5&l=atDataLayer185ms148ms32ms3rd
https://www.gstatic.com/devrel-devsite/prod/v2f052e0cca7362dede225b85c12aee59eabee5b8fbb05d44fc345ffb54861aec/firebase/js/devsite_devsite_header_module.js84ms35ms1ms3rd
https://www.gstatic.com/devrel-devsite/prod/v2f052e0cca7362dede225b85c12aee59eabee5b8fbb05d44fc345ffb54861aec/firebase/css/app.css57ms0ms0ms3rd
D
JS Bundles
Action
49 scripts, 397 KB unused
FIX
49 scripts, 397 KB unused
Warning::
https://www.gstatic.com/devrel-devsite/prod/v2f052...: 163 KB unused (54%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-KFP...: 85 KB unused (54%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-64EQ...: 62 KB unused (43%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-NDV...: 61 KB unused (46%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.gstatic.com/devrel-devsite/prod/v2f052...: 27 KB unused (47%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 397 KB
397 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.gstatic.com/devrel-devsite/prod/v2f052e0cca7362dede225b85c12aee59eabee5b8fbb05d44fc345ffb54861aec/firebase/js/devsite_app_custom_elements_module.js303 KB163 KB (54%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-KFPLMHC156 KB85 KB (54%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-64EQFFKSHW&l=atDataLayer&cx=c&gtm=4e64f0143 KB62 KB (43%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-NDV7K7V5&l=atDataLayer131 KB61 KB (46%)✓3rd
https://www.gstatic.com/devrel-devsite/prod/v2f052e0cca7362dede225b85c12aee59eabee5b8fbb05d44fc345ffb54861aec/firebase/js/devsite_app_module.js58 KB27 KB (47%)✓3rd
https://www.gstatic.com/devrel-devsite/prod/v2f052e0cca7362dede225b85c12aee59eabee5b8fbb05d44fc345ffb54861aec/firebase/js/devsite_devsite_notification_module.js0 KB—✓3rd
https://www.gstatic.com/devrel-devsite/prod/v2f052e0cca7362dede225b85c12aee59eabee5b8fbb05d44fc345ffb54861aec/firebase/js/devsite_devsite_a11y_announce_module.js0 KB—✓3rd
https://www.gstatic.com/devrel-devsite/prod/v2f052e0cca7362dede225b85c12aee59eabee5b8fbb05d44fc345ffb54861aec/firebase/js/devsite_devsite_actions_module.js0 KB—✓3rd
https://www.gstatic.com/devrel-devsite/prod/v2f052e0cca7362dede225b85c12aee59eabee5b8fbb05d44fc345ffb54861aec/firebase/js/devsite_devsite_analytics_module.js0 KB—✓3rd
https://www.gstatic.com/devrel-devsite/prod/v2f052e0cca7362dede225b85c12aee59eabee5b8fbb05d44fc345ffb54861aec/firebase/js/devsite_devsite_appearance_selector_module.js2 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

D
Page Weight Inventory
Action
81 resources · 2.3 MB · 397 KB savings available
FIX
81 resources · 2.3 MB · 397 KB savings available
Warning::
Page weight 1.3 MB over 1MB target
Got: 2.3 MB Expected: ≤ 1 MB
Info::
~397 KB of savings available
Warning::
80 third-party resources (100% of weight)
Info::
3 resources over 200KB
81 resources · 2.3 MiB · 80 third-party 1.3 MiB over 1MB target
Image 45% · 1.0 MiB
JavaScript 36% · 868.5 KiB
Font 8% · 200.5 KiB
CSS 7% · 167.3 KiB
Document 4% · 88.3 KiB
Other 0% · 2.2 KiB

~396.9 KiB of savings available

Remove unused JavaScript: 396.9 KiB
C
Image Optimization
Action
9 images, 0 KB saveable
REVIEW
9 images, 0 KB saveable
Warning::
https://firebase.google.com/static/images/products... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://firebase.google.com/static/images/products... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://firebase.google.com/static/images/products... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://firebase.google.com/static/images/products... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://firebase.google.com/static/images/products... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
9 images 1.0 MB
0 oversized -0 KB
8 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

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

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
4 fonts (201 KB)
PASS
4 fonts (201 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

4

201 KB total

Render-blocking

0

of 4

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s FCP 4.0 s LCP 6.3 shttps://fonts.gstatic.com/s/googlesans/v67/4UasrENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RPjIUvbQoi-E.woff24UasrENHsxJlGDuGo1OIlJf... https://fonts.gstatic.com/s/googlesans/v67/4UasrENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RPjIUvbQoi-E.woff2 — 35.3 KiB — 98 ms — font-display: swaphttps://fonts.gstatic.com/s/materialicons/v145/flUhRq6tzZclQEJ-Vdg-IuiaDsNcIhQ8tQ.woff2flUhRq6tzZclQEJ-Vdg-Iui... https://fonts.gstatic.com/s/materialicons/v145/flUhRq6tzZclQEJ-Vdg-IuiaDsNcIhQ8tQ.woff2 — 125.6 KiB — 131 ms — font-display: swaphttps://fonts.gstatic.com/s/jetbrainsmono/v24/tDbV2o-flEEny0FZhsfKu5WU4xD7OwGtT0rU.woff2tDbV2o-flEEny0FZhsfKu5W... https://fonts.gstatic.com/s/jetbrainsmono/v24/tDbV2o-flEEny0FZhsfKu5WU4xD7OwGtT0rU.woff2 — 39.6 KiB — 106 ms — font-display: swaphttps://fonts.gstatic.com/s/roboto/v51/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2KFO7CnqEu92Fr1ME7kSn66a... https://fonts.gstatic.com/s/roboto/v51/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2 — 0 B — 42 ms — font-display: swap
4UasrENHsxJlGDuGo1OIlJf... woff2 swap
Size 35 KB
Load time 98 ms
Start 953 ms
Risk FOUT — text flashes from fallback to web font
flUhRq6tzZclQEJ-Vdg-Iui... woff2 swap
Size 126 KB
Load time 131 ms
Start 953 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
tDbV2o-flEEny0FZhsfKu5W... woff2 swap
Size 40 KB
Load time 106 ms
Start 954 ms
Risk FOUT — text flashes from fallback to web font
KFO7CnqEu92Fr1ME7kSn66a... woff2 swap
Size 0 KB
Load time 42 ms
Start 1.6 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 ~63 KB and ~126 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
3 hints, 0 missing preconnects
PASS
3 hints, 0 missing preconnects
Info::
Page uses 3 resource hint(s)

Current Resource Hints

preconnect
3
preload
—
dns-prefetch
—
prefetch
—

3 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
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Google Cloud

A
HTTP Caching
max-age=1800 (30 minutes)
PASS
max-age=1800 (30 minutes)
Info::
Cache-Control header is set
Got: public, max-age=1800
Info::
Effective TTL: 30 minutes (max-age=1800)
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

public, max-age=1800

DirectiveValueMeaning
public—Any cache may store this response
max-age1800Cache for 30 minutes
Effective TTL: 1800 seconds
Network Waterfall
81 requests over 4273ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s FCP 4.0 s LCP 6.3 shttps://crashlytics.com// https://crashlytics.com/ — 301 — 233 B — 25 ms — h2https://firebase.google.com/products/crashlytics/firebase.google.com/products/crashl... https://firebase.google.com/products/crashlytics/ — 200 — 87.5 KiB — 543 ms — h2https://fonts.googleapis.com/css?family=Google+Sans:400,500|Roboto:400,400italic,500,500italic,700,700italic|Roboto+Mono:400,500,700&display=swapfonts.googleapis.com/css?family=Goo... https://fonts.googleapis.com/css?family=Google+Sans:400,500|Roboto:400,400italic,500,500italic,700,700italic|Roboto+Mono:400,500,700&display=swap — 200 — 3.3 KiB — 285 ms — h2https://fonts.googleapis.com/css2?family=Material+Icons&family=Material+Symbols+Outlined&display=blockfonts.googleapis.com/css2?family=Ma... https://fonts.googleapis.com/css2?family=Material+Icons&family=Material+Symbols+Outlined&display=block — 200 — 588 B — 172 ms — h2https://www.gstatic.com/devrel-devsite/prod/v2f052e0cca7362dede225b85c12aee59eabee5b8fbb05d44fc345ffb54861aec/firebase/css/app.csswww.gstatic.com/devrel-devsite/prod... https://www.gstatic.com/devrel-devsite/prod/v2f052e0cca7362dede225b85c12aee59eabee5b8fbb05d44fc345ffb54861aec/firebase/css/app.css — 200 — 154.1 KiB — 248 ms — h2https://www.gstatic.com/devrel-devsite/prod/v2f052e0cca7362dede225b85c12aee59eabee5b8fbb05d44fc345ffb54861aec/firebase/css/dark-theme.csswww.gstatic.com/devrel-devsite/prod... https://www.gstatic.com/devrel-devsite/prod/v2f052e0cca7362dede225b85c12aee59eabee5b8fbb05d44fc345ffb54861aec/firebase/css/dark-theme.css — 200 — 5.7 KiB — 148 ms — h2https://fonts.googleapis.com/css2?family=JetBrains+Mono:ital,wght@0,100..800;1,100..800&display=swapfonts.googleapis.com/css2?family=Je... https://fonts.googleapis.com/css2?family=JetBrains+Mono:ital,wght@0,100..800;1,100..800&display=swap — 200 — 1.1 KiB — 169 ms — h2https://fonts.googleapis.com/css?family=Google+Sans:400,500,600,700fonts.googleapis.com/css?family=Goo... https://fonts.googleapis.com/css?family=Google+Sans:400,500,600,700 — 200 — 2.5 KiB — 211 ms — h2https://www.gstatic.com/devrel-devsite/prod/v2f052e0cca7362dede225b85c12aee59eabee5b8fbb05d44fc345ffb54861aec/firebase/images/lockup.svgwww.gstatic.com/devrel-devsite/prod... https://www.gstatic.com/devrel-devsite/prod/v2f052e0cca7362dede225b85c12aee59eabee5b8fbb05d44fc345ffb54861aec/firebase/images/lockup.svg — 200 — 3.4 KiB — 225 ms — h2https://firebase.google.com/_pwa/firebase/manifest.jsonfirebase.google.com/_pwa/firebase/m... https://firebase.google.com/_pwa/firebase/manifest.json — 200 — 1.2 KiB — 46 ms — h2https://firebase.google.com/static/images/products/crashlytics/crashlytics-hero_2x.pngfirebase.google.com/static/images/p... https://firebase.google.com/static/images/products/crashlytics/crashlytics-hero_2x.png — 200 — 118.4 KiB — 339 ms — h3https://www.gstatic.com/devrel-devsite/prod/v2f052e0cca7362dede225b85c12aee59eabee5b8fbb05d44fc345ffb54861aec/firebase/js/app_loader.jswww.gstatic.com/devrel-devsite/prod... https://www.gstatic.com/devrel-devsite/prod/v2f052e0cca7362dede225b85c12aee59eabee5b8fbb05d44fc345ffb54861aec/firebase/js/app_loader.js — 200 — 12.6 KiB — 41 ms — h2https://firebase.google.com/static/images/products/crashlytics/Crashlytics_SolveCrashes_2x.pngfirebase.google.com/static/images/p... https://firebase.google.com/static/images/products/crashlytics/Crashlytics_SolveCrashes_2x.png — 200 — 246.6 KiB — 658 ms — h3https://firebase.google.com/static/images/products/crashlytics/Crashlytics_GeminiPowered_2x.pngfirebase.google.com/static/images/p... https://firebase.google.com/static/images/products/crashlytics/Crashlytics_GeminiPowered_2x.png — 200 — 47.0 KiB — 544 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 2797ms · 1036KB · €8/mo
firebase.google.com
Other
Costly
Execution 904ms
Transfer 88 KB
Monthly Cost €3/mo
Unattributable
Other
Costly
Execution 642ms
Transfer 0 KB
Monthly Cost €2/mo
www.gstatic.com
Other
Costly
Execution 277ms
Transfer 58 KB
Unused 47%
Monthly Cost €1/mo
Google Tag Manager
Tag Manager
Costly
Execution 225ms
Transfer 156 KB
Unused 54%
Monthly Cost €1/mo
Google Tag Manager
Tag Manager
Costly
Execution 212ms
Transfer 143 KB
Unused 43%
Monthly Cost €1/mo
www.gstatic.com
Other
Costly
Execution 212ms
Transfer 303 KB
Unused 54%
Monthly Cost €1/mo
Google Tag Manager
Tag Manager
Optional
Execution 185ms
Transfer 131 KB
Unused 46%
Monthly Cost €1/mo
www.gstatic.com
Other
Optional
Execution 84ms
Transfer 2 KB
Monthly Cost €0/mo
www.gstatic.com
Other
Optional
Execution 57ms
Transfer 154 KB
Monthly Cost €0/mo

These scripts may cost more than they're worth

  • firebase.google.com adds 904ms and costs ~€3/month
  • Unattributable adds 642ms and costs ~€2/month
  • www.gstatic.com adds 277ms and costs ~€1/month
  • Google Tag Manager adds 225ms and costs ~€1/month
  • Google Tag Manager adds 212ms and costs ~€1/month
  • www.gstatic.com adds 212ms and costs ~€1/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

firebase.google.com takes 904ms 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 642ms 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.gstatic.com takes 277ms 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 225ms 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

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

Google Tag Manager takes 212ms 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.gstatic.com takes 212ms 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

54% of www.gstatic.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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