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https://www.dribbble.com

Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
81
GRADE
B
FIX
3
REVIEW
4
PASS
5
INFO
2

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

Mobile Desktop
79
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
84
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.
100
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.

1.71 s

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

2.32 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.

0.029

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

1.89 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.

2.32 s

Page Load Progression

669 ms
1.3 s
2.0 s
2.7 s
3.3 s
4.0 s
4.7 s
5.4 s
Checks
14
5 PASS 4 REVIEW 3 FIX
F
Page Weight Budget
Action
3.1 MB transferred, 172 requests
FIX
3.1 MB transferred, 172 requests
Warning::
Page weighs 5.8 MB (3.1 MB transferred)
Warning::
JavaScript is 611 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 611 KB
Info::
Fonts are 241 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 241 KB
Warning::
172 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 0.65 g CO2 per page load
3.1 MB / 2.4 MB budget
3.1 MB transferred
172 requests
0.65 g CO2 per page load
Other 1.7 MiB 53%
JavaScript 610.9 KiB 19%
Images 449.9 KiB 14%
Fonts 240.8 KiB 8%
CSS 101.4 KiB 3%
HTML 61.1 KiB 2%
Other 13.5 KiB 0%
Other 11.7 KiB 0%
Other 3.2 KiB 0%
Other 260 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

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
100% third-party, 0 ms blocking
FIX
100% third-party, 0 ms blocking
Warning::
Third-party code accounts for 100% of page weight (3.1 MiB of 3.1 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
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.

B
Image Optimization
60 images, 0 KB saveable
REVIEW
60 images, 0 KB saveable
Info::
All images are well-optimized
60 images 450 KB
0 oversized -0 KB
5 legacy format
0 missing dimensions CLS risk
C
JS Execution Cost
Action
1904ms total JS execution
REVIEW
1904ms total JS execution
Warning::
https://dribbble.com/: 1309ms CPU time
Info::
Unattributable: 215ms CPU time
Info::
https://cdn.dribbble.com/assets/vite/assets/ls.ria...: 181ms CPU time
Info::
https://cdn.dribbble.com/assets/jquery.min-9c88cca...: 104ms CPU time
Info::
https://cdn.dribbble.com/assets/vite/assets/index-...: 95ms CPU time
Warning::
Third-party scripts: 1904ms (100% of total)

Main Thread Breakdown

Style & Layout 40% Other 32% Script Evaluation 13% Rendering 12%
ScriptTotalScriptingParse/CompileParty
https://dribbble.com/1309ms18ms5ms3rd
Unattributable215ms17ms0ms3rd
https://cdn.dribbble.com/assets/vite/assets/ls.rias-045c567b.js181ms35ms0ms3rd
https://cdn.dribbble.com/assets/jquery.min-9c88cca85b4993dd197ed241b5f8ed8bfc16bf66b1855af09272a1d820baec1e.js104ms28ms3ms3rd
https://cdn.dribbble.com/assets/vite/assets/index-ecfc279f.js95ms56ms0ms3rd
C
JS Bundles
Action
82 scripts, 233 KB unused
REVIEW
82 scripts, 233 KB unused
Warning::
https://cdn.dribbble.com/assets/vite/assets/tiptap...: 74 KB unused (94%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://accounts.google.com/gsi/client: 70 KB unused (75%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.dribbble.com/assets/vite/assets/index-...: 43 KB unused (56%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.dribbble.com/assets/vite/assets/index-...: 24 KB unused (83%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.dribbble.com/assets/vite/assets/vue.ru...: 22 KB unused (77%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 233 KB
233 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://cdn.dribbble.com/assets/vite/assets/tiptap-extension-underline.esm-5f04bc67.js79 KB74 KB (94%)✓3rd
https://accounts.google.com/gsi/client94 KB70 KB (75%)✓3rd
https://cdn.dribbble.com/assets/vite/assets/index-489964b3.js78 KB43 KB (56%)✓3rd
https://cdn.dribbble.com/assets/vite/assets/index-ecfc279f.js29 KB24 KB (83%)✓3rd
https://cdn.dribbble.com/assets/vite/assets/vue.runtime.esm-8a2a981b.js29 KB22 KB (77%)✓3rd
https://cdn.dribbble.com/assets/vite/assets/drb-confirm-helpers-15e164fa.js1 KB—✓3rd
https://cdn.dribbble.com/assets/vite/assets/index-ccb0b178.js3 KB—✓3rd
https://cdn.dribbble.com/assets/shot-filtering-manifest-d227ce5d52defc4c9c668a11027a0ab8ced8f22e1f5c19a524da59cc48ad9e17.js8 KB—✓3rd
https://cdn.dribbble.com/assets/shots-manifest-1c4a6e534cd126378c21ed16ff10dcad2003e8cdbce5bd9387c292881a4a3be8.js18 KB—✓3rd
https://cdn.dribbble.com/assets/vite/assets/shots-scripts-8e730321.js1 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

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
3 fonts (241 KB)
PASS
3 fonts (241 KB)
Info::
3 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

3

241 KB total

Render-blocking

0

of 3

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 FCP 1.7 s LCP 2.3 shttps://cdn.dribbble.com/assets/mona-sans/Mona-Sans-870dff5a10221ba7d01cc47eca10d0b2f911bd4196bb941985490bd8c7363cd9.woff2Mona-Sans-870dff5a10221... https://cdn.dribbble.com/assets/mona-sans/Mona-Sans-870dff5a10221ba7d01cc47eca10d0b2f911bd4196bb941985490bd8c7363cd9.woff2 — 134.6 KiB — 0 ms — font-display: swaphttps://cdn.dribbble.com/assets/wf-visual-sans/WFVisualSans-RegularText-46461986901f80620e484e70aa8cbb90ede25a01351d464819a4e47a3f38ea43.woff2WFVisualSans-RegularTex... https://cdn.dribbble.com/assets/wf-visual-sans/WFVisualSans-RegularText-46461986901f80620e484e70aa8cbb90ede25a01351d464819a4e47a3f38ea43.woff2 — 52.3 KiB — 0 ms — font-display: swaphttps://cdn.dribbble.com/assets/wf-visual-sans/WFVisualSans-SemiBold-aa0e55353b6a1b897f76a0fcbf5561fa243ce1b8b9f6aebcb5a186f0536713b1.woff2WFVisualSans-SemiBold-a... https://cdn.dribbble.com/assets/wf-visual-sans/WFVisualSans-SemiBold-aa0e55353b6a1b897f76a0fcbf5561fa243ce1b8b9f6aebcb5a186f0536713b1.woff2 — 53.9 KiB — 0 ms — font-display: swap
Mona-Sans-870dff5a10221... woff2 swap
Size 135 KB
Load time 0 ms
Start 0 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
WFVisualSans-RegularTex... woff2 swap
Size 52 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
WFVisualSans-SemiBold-a... woff2 swap
Size 54 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)

Fixing the unchecked items could save ~67 KB and ~134 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
172 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
100% of JavaScript execution is third-party
First-party Third-party 1904ms · 127KB · €21/mo
dribbble.com
Other
Costly
Execution 1309ms
Transfer 61 KB
Monthly Cost €14/mo
Unattributable
Other
Costly
Execution 215ms
Transfer 0 KB
Monthly Cost €2/mo
cdn.dribbble.com
Other
Optional
Execution 181ms
Transfer 6 KB
Monthly Cost €2/mo
cdn.dribbble.com
Other
Optional
Execution 104ms
Transfer 31 KB
Monthly Cost €1/mo
cdn.dribbble.com
Other
Optional
Execution 95ms
Transfer 29 KB
Unused 83%
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • dribbble.com adds 1309ms and costs ~€14/month
  • Unattributable adds 215ms and costs ~€2/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

dribbble.com takes 1309ms 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 215ms 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

83% of cdn.dribbble.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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