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Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
72
GRADE
C
FIX
5
REVIEW
2
PASS
5
INFO
2

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

Mobile Desktop
62
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
96
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
73
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.

1.07 s

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

1.63 s

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

601 ms

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

0.023

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

2.56 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.

9.80 s

Page Load Progression

1.5 s
3.0 s
4.5 s
6.0 s
7.5 s
9.0 s
10.5 s
12.0 s
Checks
14
5 PASS 2 REVIEW 5 FIX
F
Page Weight Budget
Action
13.5 MB transferred, 756 requests
FIX
13.5 MB transferred, 756 requests
Critical::
Page weighs 23.9 MB (13.5 MB transferred)
Warning::
JavaScript is 4.3 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 4.3 MB
Info::
Fonts are 456 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 456 KB
Warning::
756 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 2.8 g CO2 per page load
13.5 MB / 2.4 MB budget
13.5 MB transferred
756 requests
2.8 g CO2 per page load
Other 8.3 MiB 61%
JavaScript 4.3 MiB 32%
Fonts 456.3 KiB 3%
CSS 195.5 KiB 1%
Images 158.1 KiB 1%
HTML 120.0 KiB 1%
Other 17.9 KiB 0%
Other 5.5 KiB 0%
Other 4.6 KiB 0%
Other 671 B 0%
Other 0 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
99% third-party, 0 ms blocking
FIX
99% third-party, 0 ms blocking
Warning::
Third-party code accounts for 99% of page weight (13.3 MiB of 13.5 MiB)
Info::
Third-party blocking time is low (0 ms)
99%
First-party Third-party
F
JS Execution Cost
Action
1775592208310ms total JS execution
FIX
1775592208310ms total JS execution
Warning::
Unattributable: 1775592204218ms CPU time
Warning::
https://cfl.dropboxstatic.com/static/atlas/warp/wa...: 682ms CPU time
Warning::
https://www.dropbox.com/: 571ms CPU time
Warning::
https://cfl.dropboxstatic.com/static/atlas/warp/wa...: 368ms CPU time
Warning::
https://cfl.dropboxstatic.com/static/metaserver/st...: 357ms CPU time
Warning::
Third-party scripts: 1775592207739ms (100% of total)

Main Thread Breakdown

Other 100%
ScriptTotalScriptingParse/CompileParty
Unattributable1775592204218ms66ms0ms3rd
https://cfl.dropboxstatic.com/static/atlas/warp/warp_page_edison_bundle_amd/dist/e_warp_warp_page_edison-vflpSArJJ.js682ms244ms61ms3rd
https://www.dropbox.com/571ms31ms25ms1st
https://cfl.dropboxstatic.com/static/atlas/warp/warp_page_edison_bundle_amd/dist/c_fingerprintjs_fpjs-pro-static_fp-vflGINDbV.js368ms276ms6ms3rd
https://cfl.dropboxstatic.com/static/metaserver/static/js/alameda_bundle/alameda_bundle_chrome_en-vflMwBej6.js357ms325ms9ms3rd
https://cfl.dropboxstatic.com/static/atlas/warp/warp_page_edison_bundle_amd/dist/c_contentsquare-vflDuiebi.js330ms290ms14ms3rd
https://cfl.dropboxstatic.com/static/atlas/warp/warp_page_edison_bundle_amd/dist/e_edison_edison_react_page-vfl6S08DM.js231ms212ms0ms3rd
https://assets.adobedtm.com/7c31e7b46b8e/5feae65e0b10/launch-9b21c433d0d6.min.js216ms153ms17ms3rd
https://www.googletagmanager.com/gtag/js?id=AW-1000051215&cx=c&gtm=4e6460100ms85ms13ms3rd
https://www.googletagmanager.com/gtag/js?id=AW-11087776657&cx=c&gtm=4e646098ms83ms14ms3rd

Showing top 10 of 26 scripts

F
JS Bundles
Action
500 scripts, 1.5 MB unused
FIX
500 scripts, 1.5 MB unused
Warning::
https://cfl.dropboxstatic.com/static/atlas/warp/wa...: 271 KB unused (52%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cfl.dropboxstatic.com/static/atlas/warp/wa...: 99 KB unused (90%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=DC-159...: 97 KB unused (76%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cfl.dropboxstatic.com/static/atlas/privacy...: 78 KB unused (42%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-90XE...: 74 KB unused (46%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 1.5 MB
1495 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://cfl.dropboxstatic.com/static/atlas/warp/warp_page_edison_bundle_amd/dist/e_warp_warp_page_edison-vflpSArJJ.js522 KB271 KB (52%)✓3rd
https://cfl.dropboxstatic.com/static/atlas/warp/warp_page_edison_bundle_amd/dist/c_trial-cards_trial-comparison-card-vflujfrXM.js110 KB99 KB (90%)✓3rd
https://www.googletagmanager.com/gtag/js?id=DC-15932550129 KB97 KB (76%)✓3rd
https://cfl.dropboxstatic.com/static/atlas/privacy_consent/ccpa_iframe_bundle_amd/dist/e_privacy_consent_static_ccpa_iframe-vflzWfccK.js186 KB78 KB (42%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-90XEVYY8M4&cx=c&gtm=4e6460161 KB74 KB (46%)✓3rd
https://cfl.dropboxstatic.com/static/atlas/warp/warp_page_edison_bundle_amd/dist/c_contentsquare-vflDuiebi.js140 KB71 KB (51%)✓3rd
https://accounts.google.com/gsi/client93 KB69 KB (75%)✓3rd
https://www.googletagmanager.com/gtag/js?id=UA-279179-2&cx=c&gtm=4e6460124 KB63 KB (51%)✓3rd
https://www.googletagmanager.com/gtag/js?id=AW-982651595&cx=c&gtm=4e6460144 KB62 KB (43%)✓3rd
https://www.googletagmanager.com/gtag/destination?id=DC-10906599&cx=c&gtm=4e6460130 KB62 KB (47%)✓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
HTTP Caching
Action
no-store (uncacheable)
FIX
no-store (uncacheable)
Info::
Cache-Control: no-store prevents all caching
Intentional for dynamic content, but increases server load for every page view.
Got: no-cache, no-store
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

no-cache, no-store

DirectiveValueMeaning
no-cache—Cache but always revalidate first
no-store—Never cache this response
B
Image Optimization
47 images, 0 KB saveable
REVIEW
47 images, 0 KB saveable
Info::
All images are well-optimized
47 images 158 KB
0 oversized -0 KB
42 legacy format
0 missing dimensions CLS risk
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
9 fonts (456 KB)
PASS
9 fonts (456 KB)
Info::
9 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

9

456 KB total

Render-blocking

0

of 9

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 1.1 s LCP 1.6 shttps://cfl.dropboxstatic.com/static/metaserver/static/fonts/dig-fonts/atlas_grotesk/AtlasGrotesk-Medium-Web-vfl38XiTL.woff2AtlasGrotesk-Medium-Web... https://cfl.dropboxstatic.com/static/metaserver/static/fonts/dig-fonts/atlas_grotesk/AtlasGrotesk-Medium-Web-vfl38XiTL.woff2 — 45.3 KiB — 0 ms — font-display: swaphttps://cfl.dropboxstatic.com/static/metaserver/static/fonts/dig-fonts/atlas_grotesk/AtlasGrotesk-Regular-Web-vflk7bxjs.woff2AtlasGrotesk-Regular-We... https://cfl.dropboxstatic.com/static/metaserver/static/fonts/dig-fonts/atlas_grotesk/AtlasGrotesk-Regular-Web-vflk7bxjs.woff2 — 42.5 KiB — 0 ms — font-display: swaphttps://cfl.dropboxstatic.com/static/metaserver/static/fonts/dig-fonts/sharp_grotesk/SharpGroteskDBCyrBook20-vfl6-4ZSp.woff2SharpGroteskDBCyrBook20... https://cfl.dropboxstatic.com/static/metaserver/static/fonts/dig-fonts/sharp_grotesk/SharpGroteskDBCyrBook20-vfl6-4ZSp.woff2 — 53.6 KiB — 0 ms — font-display: swaphttps://cfl.dropboxstatic.com/static/metaserver/static/fonts/dig-fonts/sharp_grotesk/SharpGroteskDBCyrMedium20-vflI3qtaE.woff2SharpGroteskDBCyrMedium... https://cfl.dropboxstatic.com/static/metaserver/static/fonts/dig-fonts/sharp_grotesk/SharpGroteskDBCyrMedium20-vflI3qtaE.woff2 — 54.1 KiB — 0 ms — font-display: swaphttps://cfl.dropboxstatic.com/static/metaserver/static/fonts/dig-fonts/sharp_grotesk_23/SharpGroteskDBCyrBook23-vflX-NIwB.woff2SharpGroteskDBCyrBook23... https://cfl.dropboxstatic.com/static/metaserver/static/fonts/dig-fonts/sharp_grotesk_23/SharpGroteskDBCyrBook23-vflX-NIwB.woff2 — 58.3 KiB — 0 ms — font-display: swaphttps://cfl.dropboxstatic.com/static/metaserver/static/fonts/sharpgrotesk/SharpGroteskDBMedium22-vflJ24ZPh.woff2SharpGroteskDBMedium22-... https://cfl.dropboxstatic.com/static/metaserver/static/fonts/sharpgrotesk/SharpGroteskDBMedium22-vflJ24ZPh.woff2 — 60.4 KiB — 0 ms — font-display: swaphttps://cfl.dropboxstatic.com/static/metaserver/static/fonts/paper-atlasgrotesk/AtlasGrotesk-Regular-Web-vflk7bxjs.woff2AtlasGrotesk-Regular-We... https://cfl.dropboxstatic.com/static/metaserver/static/fonts/paper-atlasgrotesk/AtlasGrotesk-Regular-Web-vflk7bxjs.woff2 — 42.6 KiB — 0 ms — font-display: swaphttps://cfl.dropboxstatic.com/static/metaserver/static/fonts/paper-atlasgrotesk/AtlasGrotesk-Medium-Web-vfl38XiTL.woff2AtlasGrotesk-Medium-Web... https://cfl.dropboxstatic.com/static/metaserver/static/fonts/paper-atlasgrotesk/AtlasGrotesk-Medium-Web-vfl38XiTL.woff2 — 45.4 KiB — 0 ms — font-display: swaphttps://cfl.dropboxstatic.com/static/metaserver/static/fonts/sharpgrotesk/SharpGroteskDBMedium20-vflI3qtaE.woff2SharpGroteskDBMedium20-... https://cfl.dropboxstatic.com/static/metaserver/static/fonts/sharpgrotesk/SharpGroteskDBMedium20-vflI3qtaE.woff2 — 54.2 KiB — 0 ms — font-display: swap
AtlasGrotesk-Medium-Web... woff2 swap
Size 45 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
AtlasGrotesk-Regular-We... woff2 swap
Size 42 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
SharpGroteskDBCyrBook20... woff2 swap
Size 54 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
SharpGroteskDBCyrMedium... woff2 swap
Size 54 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
SharpGroteskDBCyrBook23... woff2 swap
Size 58 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
SharpGroteskDBMedium22-... woff2 swap
Size 60 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
AtlasGrotesk-Regular-We... woff2 swap
Size 43 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
AtlasGrotesk-Medium-Web... woff2 swap
Size 45 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
SharpGroteskDBMedium20-... 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)
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
756 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 1775592207739ms · 2586KB · $33297680672/mo
Unattributable
Other
Costly
Execution 1775592204218ms
Transfer 0 KB
Monthly Cost $33297680606/mo
cfl.dropboxstatic.com
Other
Costly
Execution 682ms
Transfer 522 KB
Unused 52%
Monthly Cost $13/mo
cfl.dropboxstatic.com
Other
Costly
Execution 368ms
Transfer 82 KB
Unused 34%
Monthly Cost $7/mo
cfl.dropboxstatic.com
Other
Costly
Execution 357ms
Transfer 0 KB
Monthly Cost $7/mo
cfl.dropboxstatic.com
Other
Costly
Execution 330ms
Transfer 140 KB
Unused 51%
Monthly Cost $6/mo
cfl.dropboxstatic.com
Other
Costly
Execution 231ms
Transfer 1 KB
Monthly Cost $4/mo
assets.adobedtm.com
Other
Costly
Execution 216ms
Transfer 48 KB
Monthly Cost $4/mo
Google Tag Manager
Tag Manager
Optional
Execution 100ms
Transfer 146 KB
Unused 38%
Monthly Cost $2/mo
Google Tag Manager
Tag Manager
Optional
Execution 98ms
Transfer 141 KB
Unused 38%
Monthly Cost $2/mo
Facebook Pixel
Advertising
Optional
Execution 95ms
Transfer 124 KB
Unused 29%
Monthly Cost $2/mo
Google Tag Manager
Tag Manager
Optional
Execution 91ms
Transfer 130 KB
Unused 47%
Monthly Cost $2/mo
cfl.dropboxstatic.com
Other
Optional
Execution 88ms
Transfer 186 KB
Unused 42%
Monthly Cost $2/mo
Google Tag Manager
Tag Manager
Optional
Execution 84ms
Transfer 161 KB
Unused 46%
Monthly Cost $2/mo
Google Tag Manager
Tag Manager
Optional
Execution 84ms
Transfer 144 KB
Unused 43%
Monthly Cost $2/mo
Google Tag Manager
Tag Manager
Optional
Execution 80ms
Transfer 133 KB
Unused 40%
Monthly Cost $2/mo
Google Tag Manager
Tag Manager
Optional
Execution 77ms
Transfer 138 KB
Unused 37%
Monthly Cost $1/mo
Google Tag Manager
Tag Manager
Optional
Execution 70ms
Transfer 129 KB
Unused 44%
Monthly Cost $1/mo
cfl.dropboxstatic.com
Other
Optional
Execution 68ms
Transfer 16 KB
Monthly Cost $1/mo
assets.adobedtm.com
Other
Optional
Execution 62ms
Transfer 1 KB
Monthly Cost $1/mo
Google Tag Manager
Tag Manager
Optional
Execution 59ms
Transfer 124 KB
Unused 51%
Monthly Cost $1/mo
cfl.dropboxstatic.com
Other
Optional
Execution 59ms
Transfer 47 KB
Monthly Cost $1/mo
cfl.dropboxstatic.com
Other
Optional
Execution 58ms
Transfer 20 KB
Monthly Cost $1/mo
cfl.dropboxstatic.com
Other
Optional
Execution 58ms
Transfer 47 KB
Monthly Cost $1/mo
cfl.dropboxstatic.com
Other
Optional
Execution 57ms
Transfer 11 KB
Monthly Cost $1/mo
Facebook Pixel
Advertising
Optional
Execution 50ms
Transfer 95 KB
Unused 35%
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • Unattributable adds 1775592204218ms and costs ~$33297680606/month
  • cfl.dropboxstatic.com adds 682ms and costs ~$13/month
  • cfl.dropboxstatic.com adds 368ms and costs ~$7/month
  • cfl.dropboxstatic.com adds 357ms and costs ~$7/month
  • cfl.dropboxstatic.com adds 330ms and costs ~$6/month
  • cfl.dropboxstatic.com adds 231ms and costs ~$4/month
  • assets.adobedtm.com adds 216ms and costs ~$4/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

Unattributable takes 1775592204218ms 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

cfl.dropboxstatic.com takes 682ms 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 cfl.dropboxstatic.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

cfl.dropboxstatic.com takes 368ms 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

cfl.dropboxstatic.com takes 357ms 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

cfl.dropboxstatic.com takes 330ms 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

51% of cfl.dropboxstatic.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

cfl.dropboxstatic.com takes 231ms 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

assets.adobedtm.com takes 216ms 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

51% 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

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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