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https://kuula.co

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
68
GRADE
D
FIX
6
REVIEW
2
PASS
5
INFO
2

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

Mobile Desktop
70
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
65
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.
85
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.

669 ms

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

1.54 s

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

541 ms

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

0.001

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

1.64 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.

2.44 s

Page Load Progression

424 ms
848 ms
1.3 s
1.7 s
2.1 s
2.5 s
3.0 s
3.4 s
Checks
15
5 PASS 2 REVIEW 6 FIX
F
Page Weight Budget
Action
3.8 MB transferred, 60 requests
FIX
3.8 MB transferred, 60 requests
Warning::
Page weighs 3.5 MB (3.8 MB transferred)
Warning::
JavaScript is 753 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 753 KB
Info::
60 HTTP requests
Info::
Estimated 0.80 g CO2 per page load
3.8 MB / 2.4 MB budget
3.8 MB transferred
60 requests
0.80 g CO2 per page load
Other 2.4 MiB 63%
JavaScript 752.9 KiB 19%
Images 468.9 KiB 12%
CSS 69.0 KiB 2%
Fonts 64.8 KiB 2%
Other 36.3 KiB 1%
Other 29.1 KiB 1%
Other 21.1 KiB 1%
HTML 18.3 KiB 0%
Other 524 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

D
Third-Party Impact
Action
98% third-party, 0 ms blocking
FIX
98% third-party, 0 ms blocking
Warning::
Third-party code accounts for 98% of page weight (3.7 MiB of 3.8 MiB)
Info::
Third-party blocking time is low (0 ms)
98%
First-party Third-party
D
JS Execution Cost
Action
2801ms total JS execution
FIX
2801ms total JS execution
Warning::
https://static.kuula.io/prod/app-866r22.js: 2323ms CPU time
Warning::
https://static.kuula.io/prod/viewer-866r22.js: 276ms CPU time
Info::
Unattributable: 127ms CPU time
Info::
https://kuula.co/: 75ms CPU time
Warning::
Third-party scripts: 2727ms (97% of total)

Main Thread Breakdown

Other 81% Script Evaluation 13%
ScriptTotalScriptingParse/CompileParty
https://static.kuula.io/prod/app-866r22.js2323ms61ms18ms3rd
https://static.kuula.io/prod/viewer-866r22.js276ms255ms10ms3rd
Unattributable127ms2ms0ms3rd
https://kuula.co/75ms13ms1ms1st
F
JS Bundles
Action
7 scripts, 523 KB unused
FIX
7 scripts, 523 KB unused
Warning::
https://www.gstatic.com/recaptcha/releases/gTpTIWh...: 242 KB unused (67%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://static.kuula.io/prod/app-866r22.js: 196 KB unused (80%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://static.kuula.io/prod/viewer-866r22.js: 85 KB unused (60%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 523 KB
523 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js362 KB242 KB (67%)✓3rd
https://static.kuula.io/prod/app-866r22.js247 KB196 KB (80%)✓3rd
https://static.kuula.io/prod/viewer-866r22.js141 KB85 KB (60%)✓3rd
https://www.google.com/recaptcha/api.js?onload=onCaptcha&render=explicit1 KB—✓3rd
blob:https://kuula.co/bd724e63-11e9-4bee-80f3-d66c37732504-0 KB—✓3rd
https://plausible.io/js/plausible.manual.js2 KB—✓3rd
blob:https://kuula.co/075a7ff6-3c0a-4faf-9861-2e87c8e6b957-0 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

F
Page Weight Inventory
Action
60 resources · 3.8 MB · 523 KB savings available
FIX
60 resources · 3.8 MB · 523 KB savings available
Warning::
Page weight 2.8 MB over 1MB target
Got: 3.8 MB Expected: ≤ 1 MB
Info::
~523 KB of savings available
Warning::
41 third-party resources (98% of weight)
Info::
3 resources over 200KB
60 resources · 3.8 MiB · 41 third-party 2.8 MiB over 1MB target
Image 75% · 2.9 MiB
JavaScript 19% · 752.9 KiB
CSS 2% · 69.0 KiB
Font 2% · 64.8 KiB
Document 1% · 38.5 KiB
Media 1% · 36.3 KiB
Other 0% · 2.0 KiB

~522.7 KiB of savings available

Remove unused JavaScript: 522.7 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
30 images, 0 KB saveable
REVIEW
30 images, 0 KB saveable
Warning::
https://kuula.co/assets/pages/landing/real-estate-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://kuula.co/assets/pages/landing/real-estate-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://kuula.co/assets/partners/amazon.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://kuula.co/assets/pages/landing/real-estate-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://kuula.co/assets/partners/gensler.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://kuula.co/assets/partners/skanska.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://kuula.co/assets/partners/uc-berkeley.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://kuula.co/assets/partners/cbre.png 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://kuula.co/assets/partners/microsoft.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://kuula.co/assets/pages/landing/real-estate-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://kuula.co/assets/partners/unsw.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://kuula.co/assets/partners/ucla.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://static.kuula.io/prod/assets/logo-blue.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
30 images 409 KB
0 oversized -0 KB
28 legacy format
14 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

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

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

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

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
6 fonts (65 KB)
PASS
6 fonts (65 KB)
Info::
6 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

6

65 KB total

Render-blocking

0

of 6

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 FCP 669 ms LCP 1.5 shttps://static.kuula.io/fonts/roboto700.ttfroboto700.ttf https://static.kuula.io/fonts/roboto700.ttf — 21.1 KiB — 28 ms — font-display: swaphttps://static.kuula.io/fonts/roboto400.ttfroboto400.ttf https://static.kuula.io/fonts/roboto400.ttf — 21.0 KiB — 29 ms — font-display: swaphttps://static.kuula.io/fonts/roboto400italic.ttfroboto400italic.ttf https://static.kuula.io/fonts/roboto400italic.ttf — 22.7 KiB — 29 ms — font-display: swaphttps://static.kuula.io/fonts/roboto400italic.ttfroboto400italic.ttf https://static.kuula.io/fonts/roboto400italic.ttf — 0 B — 0 ms — font-display: swaphttps://static.kuula.io/fonts/roboto400.ttfroboto400.ttf https://static.kuula.io/fonts/roboto400.ttf — 0 B — 0 ms — font-display: swaphttps://static.kuula.io/fonts/roboto700.ttfroboto700.ttf https://static.kuula.io/fonts/roboto700.ttf — 0 B — 0 ms — font-display: swap
roboto700.ttf ttf swap
Size 21 KB
Load time 28 ms
Start 283 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
roboto400.ttf ttf swap
Size 21 KB
Load time 29 ms
Start 284 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
roboto400italic.ttf ttf swap
Size 23 KB
Load time 29 ms
Start 463 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
roboto400italic.ttf ttf swap
Size 0 KB
Load time 0 ms
Start 632 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
roboto400.ttf ttf swap
Size 0 KB
Load time 0 ms
Start 632 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
roboto700.ttf ttf swap
Size 0 KB
Load time 0 ms
Start 632 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 ~19 KB and ~38 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
60 requests over 979ms
INFO
0 ms 500 ms 1.0 s 1.5 s FCP 669 ms LCP 1.5 shttps://kuula.co// https://kuula.co/ — 200 — 11.5 KiB — 128 ms — h2https://static.kuula.io/prod/css/master-866r22.cssstatic.kuula.io/prod/css/master-866... https://static.kuula.io/prod/css/master-866r22.css — 200 — 58.0 KiB — 106 ms — h2https://static.kuula.io/prod/assets/logo-blue.svgstatic.kuula.io/prod/assets/logo-bl... https://static.kuula.io/prod/assets/logo-blue.svg — 200 — 1.2 KiB — 72 ms — h2https://static.kuula.io/prod/assets/pages/features/kuula-addons.webpstatic.kuula.io/prod/assets/pages/f... https://static.kuula.io/prod/assets/pages/features/kuula-addons.webp — 200 — 68.3 KiB — 105 ms — h2https://static.kuula.io/prod/assets/pages/features/kuula-player.jpgstatic.kuula.io/prod/assets/pages/f... https://static.kuula.io/prod/assets/pages/features/kuula-player.jpg — 200 — 50.5 KiB — 51 ms — h2https://kuula.co/assets/logo-white.svg/assets/logo-white.svg https://kuula.co/assets/logo-white.svg — 200 — 2.5 KiB — 37 ms — h2https://static.kuula.io/prod/app-866r22.jsstatic.kuula.io/prod/app-866r22.js https://static.kuula.io/prod/app-866r22.js — 200 — 246.6 KiB — 128 ms — h2https://static.kuula.io/prod/assets/share/fb.pngstatic.kuula.io/prod/assets/share/f... https://static.kuula.io/prod/assets/share/fb.png — 200 — 633 B — 47 ms — h2https://www.google.com/recaptcha/api.js?onload=onCaptcha&render=explicitwww.google.com/recaptcha/api.js?onl... https://www.google.com/recaptcha/api.js?onload=onCaptcha&render=explicit — 200 — 1.0 KiB — 69 ms — h3https://static.kuula.io/video/home.mp4static.kuula.io/video/home.mp4 https://static.kuula.io/video/home.mp4 — 206 — 222 B — 83 ms — h2https://static.kuula.io/prod/assets/manifest.jsonstatic.kuula.io/prod/assets/manifes... https://static.kuula.io/prod/assets/manifest.json — 200 — 524 B — 280 ms — h2https://static.kuula.io/prod/assets/share/yt.pngstatic.kuula.io/prod/assets/share/y... https://static.kuula.io/prod/assets/share/yt.png — 200 — 529 B — 61 ms — h2https://static.kuula.io/prod/assets/share/tr.svgstatic.kuula.io/prod/assets/share/t... https://static.kuula.io/prod/assets/share/tr.svg — 200 — 766 B — 61 ms — h2https://static.kuula.io/prod/assets/share/in.svgstatic.kuula.io/prod/assets/share/i... https://static.kuula.io/prod/assets/share/in.svg — 200 — 527 B — 61 ms — h2https://static.kuula.io/prod/assets/share/in.pngstatic.kuula.io/prod/assets/share/i... https://static.kuula.io/prod/assets/share/in.png — 200 — 740 B — 61 ms — h2https://static.kuula.io/prod/assets/close-circle.svgstatic.kuula.io/prod/assets/close-c... https://static.kuula.io/prod/assets/close-circle.svg — 200 — 477 B — 61 ms — h2https://static.kuula.io/prod/assets/sprites-main_v3.pngstatic.kuula.io/prod/assets/sprites... https://static.kuula.io/prod/assets/sprites-main_v3.png — 200 — 59.8 KiB — 33 ms — h2https://static.kuula.io/fonts/roboto700.ttfstatic.kuula.io/fonts/roboto700.ttf https://static.kuula.io/fonts/roboto700.ttf — 200 — 21.1 KiB — 28 ms — h2https://static.kuula.io/fonts/roboto400.ttfstatic.kuula.io/fonts/roboto400.ttf https://static.kuula.io/fonts/roboto400.ttf — 200 — 21.0 KiB — 29 ms — h2https://static.kuula.io/video/home.mp4static.kuula.io/video/home.mp4 https://static.kuula.io/video/home.mp4 — 206 — 36.1 KiB — 32 ms — h2https://static.kuula.io/prod/assets/sprites-main-s_v3.pngstatic.kuula.io/prod/assets/sprites... https://static.kuula.io/prod/assets/sprites-main-s_v3.png — 200 — 46.3 KiB — 27 ms — h2https://kuula.co/api/?action=status/api/?action=status https://kuula.co/api/?action=status — 200 — 584 B — 38 ms — h2blob:https://kuula.co/bd724e63-11e9-4bee-80f3-d66c37732504kuula.co/bd724e63-11e9-4bee-80f3-d6... blob:https://kuula.co/bd724e63-11e9-4bee-80f3-d66c37732504 — 200 — -1 B — 15 ms — blobhttps://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.jswww.gstatic.com/recaptcha/releases/... https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js — 200 — 362.4 KiB — 178 ms — h2https://static.kuula.io/prod/templates/public-866r22.htmlstatic.kuula.io/prod/templates/publ... https://static.kuula.io/prod/templates/public-866r22.html — 200 — 18.5 KiB — 29 ms — h2https://kuula.co/api/cache/blog-feed.html/api/cache/blog-feed.html https://kuula.co/api/cache/blog-feed.html — 200 — 1.2 KiB — 36 ms — h2https://kuula.co/api/?action=explore&tag=homepage&cid=&offset=0/api/?action=explore&tag=homepage&c... https://kuula.co/api/?action=explore&tag=homepage&cid=&offset=0 — 200 — 659 B — 42 ms — h2https://plausible.io/js/plausible.manual.jsplausible.io/js/plausible.manual.js https://plausible.io/js/plausible.manual.js — 200 — 1.8 KiB — 29 ms — h2https://static.kuula.io/prod/assets/about/labg-s.jpgstatic.kuula.io/prod/assets/about/l... https://static.kuula.io/prod/assets/about/labg-s.jpg — 200 — 167.6 KiB — 50 ms — h2https://static.kuula.io/fonts/roboto400italic.ttfstatic.kuula.io/fonts/roboto400ital... https://static.kuula.io/fonts/roboto400italic.ttf — 200 — 22.7 KiB — 29 ms — h2
0 ms 500 ms 1.0 s 1.5 s FCP 669 ms LCP 1.5 shttps://kuula.co// https://kuula.co/ — 200 — 11.5 KiB — 128 ms — h2https://static.kuula.io/prod/css/master-866r22.cssstatic.kuula.io/prod/css/master-866... https://static.kuula.io/prod/css/master-866r22.css — 200 — 58.0 KiB — 106 ms — h2https://static.kuula.io/prod/assets/logo-blue.svgstatic.kuula.io/prod/assets/logo-bl... https://static.kuula.io/prod/assets/logo-blue.svg — 200 — 1.2 KiB — 72 ms — h2https://static.kuula.io/prod/assets/pages/features/kuula-addons.webpstatic.kuula.io/prod/assets/pages/f... https://static.kuula.io/prod/assets/pages/features/kuula-addons.webp — 200 — 68.3 KiB — 105 ms — h2https://static.kuula.io/prod/assets/pages/features/kuula-player.jpgstatic.kuula.io/prod/assets/pages/f... https://static.kuula.io/prod/assets/pages/features/kuula-player.jpg — 200 — 50.5 KiB — 51 ms — h2https://kuula.co/assets/logo-white.svg/assets/logo-white.svg https://kuula.co/assets/logo-white.svg — 200 — 2.5 KiB — 37 ms — h2https://static.kuula.io/prod/app-866r22.jsstatic.kuula.io/prod/app-866r22.js https://static.kuula.io/prod/app-866r22.js — 200 — 246.6 KiB — 128 ms — h2https://static.kuula.io/prod/assets/share/fb.pngstatic.kuula.io/prod/assets/share/f... https://static.kuula.io/prod/assets/share/fb.png — 200 — 633 B — 47 ms — h2https://www.google.com/recaptcha/api.js?onload=onCaptcha&render=explicitwww.google.com/recaptcha/api.js?onl... https://www.google.com/recaptcha/api.js?onload=onCaptcha&render=explicit — 200 — 1.0 KiB — 69 ms — h3https://static.kuula.io/video/home.mp4static.kuula.io/video/home.mp4 https://static.kuula.io/video/home.mp4 — 206 — 222 B — 83 ms — h2https://static.kuula.io/prod/assets/manifest.jsonstatic.kuula.io/prod/assets/manifes... https://static.kuula.io/prod/assets/manifest.json — 200 — 524 B — 280 ms — h2https://static.kuula.io/prod/assets/share/yt.pngstatic.kuula.io/prod/assets/share/y... https://static.kuula.io/prod/assets/share/yt.png — 200 — 529 B — 61 ms — h2https://static.kuula.io/prod/assets/share/tr.svgstatic.kuula.io/prod/assets/share/t... https://static.kuula.io/prod/assets/share/tr.svg — 200 — 766 B — 61 ms — h2https://static.kuula.io/prod/assets/share/in.svgstatic.kuula.io/prod/assets/share/i... https://static.kuula.io/prod/assets/share/in.svg — 200 — 527 B — 61 ms — h2https://static.kuula.io/prod/assets/share/in.pngstatic.kuula.io/prod/assets/share/i... https://static.kuula.io/prod/assets/share/in.png — 200 — 740 B — 61 ms — h2https://static.kuula.io/prod/assets/close-circle.svgstatic.kuula.io/prod/assets/close-c... https://static.kuula.io/prod/assets/close-circle.svg — 200 — 477 B — 61 ms — h2https://static.kuula.io/prod/assets/sprites-main_v3.pngstatic.kuula.io/prod/assets/sprites... https://static.kuula.io/prod/assets/sprites-main_v3.png — 200 — 59.8 KiB — 33 ms — h2https://static.kuula.io/fonts/roboto700.ttfstatic.kuula.io/fonts/roboto700.ttf https://static.kuula.io/fonts/roboto700.ttf — 200 — 21.1 KiB — 28 ms — 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32 ms — h2https://files.kuula.io/profiles/1449/icon.jpgfiles.kuula.io/profiles/1449/icon.j... https://files.kuula.io/profiles/1449/icon.jpg — 200 — 2.2 KiB — 27 ms — h2blob:https://kuula.co/075a7ff6-3c0a-4faf-9861-2e87c8e6b957kuula.co/075a7ff6-3c0a-4faf-9861-2e... blob:https://kuula.co/075a7ff6-3c0a-4faf-9861-2e87c8e6b957 — 200 — -1 B — 15 ms — blobhttps://static.kuula.io/prod/assets/favicon.pngstatic.kuula.io/prod/assets/favicon... https://static.kuula.io/prod/assets/favicon.png — 200 — 5.7 KiB — 26 ms — h2https://static.kuula.io/prod/assets/webapp/kuula144.pngstatic.kuula.io/prod/assets/webapp/... https://static.kuula.io/prod/assets/webapp/kuula144.png — 200 — 8.1 KiB — 25 ms — h2https://files.kuula.io/6920-1f50-1c4e-7148/01-8192.jpgfiles.kuula.io/6920-1f50-1c4e-7148/... https://files.kuula.io/6920-1f50-1c4e-7148/01-8192.jpg — 200 — 2.4 MiB — 97 ms — h2https://kuula.co/favicon.ico/favicon.ico https://kuula.co/favicon.ico — 200 — 15.3 KiB — 37 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
97% of JavaScript execution is third-party
First-party Third-party 2727ms · 388KB · $36/mo
static.kuula.io
Other
Costly
Execution 2323ms
Transfer 247 KB
Unused 80%
Monthly Cost $31/mo
static.kuula.io
Other
Costly
Execution 276ms
Transfer 141 KB
Unused 60%
Monthly Cost $4/mo
Unattributable
Other
Optional
Execution 127ms
Transfer 0 KB
Monthly Cost $2/mo

These scripts may cost more than they're worth

  • static.kuula.io adds 2323ms and costs ~$31/month
  • static.kuula.io adds 276ms and costs ~$4/month

97% 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

static.kuula.io takes 2323ms 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

80% of static.kuula.io'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

static.kuula.io takes 276ms 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

60% of static.kuula.io'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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