Performance
· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
4.78 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
8.23 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
3.60 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.057
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
8.66 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.
22.95 s
Page Load Progression
772 ms
1.5 s
2.3 s
3.1 s 3.9 s 4.6 s 5.4 s
6.2 sFPage Weight BudgetAction11.8 MB transferred, 275 requestsFIX
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
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.
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.
High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.
Source: web.dev
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction15478ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://cfl.dropboxstatic.com/static/atlas/warp/warp_page_edison_bundle_amd/dist/e_warp_warp_page_edison-vflbRcsxa.js | 3251ms | 964ms | 296ms | 3rd |
| https://www.dropbox.com/ | 2459ms | 158ms | 49ms | 3rd |
| Unattributable | 2384ms | 114ms | 0ms | 3rd |
| https://cfl.dropboxstatic.com/static/atlas/warp/warp_page_edison_bundle_amd/dist/c_fingerprintjs_fpjs-pro-static_fp-vflGINDbV.js | 1475ms | 1191ms | 29ms | 3rd |
| https://cfl.dropboxstatic.com/static/atlas/warp/warp_page_edison_bundle_amd/dist/e_edison_edison_react_page-vflcHGmZt.js | 1170ms | 1094ms | 1ms | 3rd |
| https://cfl.dropboxstatic.com/static/metaserver/static/js/alameda_bundle/alameda_bundle_chrome_en-vflA1HMTy.js | 789ms | 590ms | 45ms | 3rd |
| https://cfl.dropboxstatic.com/static/atlas/warp/warp_page_edison_bundle_amd/dist/c_src_sink_index-vflPD7UNT.js | 433ms | 314ms | 12ms | 3rd |
| https://assets.adobedtm.com/7c31e7b46b8e/5feae65e0b10/launch-9b21c433d0d6.min.js | 374ms | 293ms | 59ms | 3rd |
| https://cfl.dropboxstatic.com/static/atlas/privacy_consent/ccpa_iframe_bundle_amd/dist/e_privacy_consent_static_ccpa_iframe-vflty13f-.js | 333ms | 88ms | 107ms | 3rd |
| https://assets.adobedtm.com/7c31e7b46b8e/5feae65e0b10/4a7579f9708e/RC5525b83175274244aaf6aafb2edbd4a7-source.min.js | 274ms | 270ms | 1ms | 3rd |
Showing top 10 of 32 scripts
FJS BundlesAction121 scripts, 782 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://cfl.dropboxstatic.com/static/atlas/warp/warp_page_edison_bundle_amd/dist/e_warp_warp_page_edison-vflbRcsxa.js | 523 KB | 272 KB (52%) | ✓ | 3rd |
| https://cfl.dropboxstatic.com/static/atlas/warp/warp_page_edison_bundle_amd/dist/c_dig-icons_assets_index-vflR9vsgy.js | 135 KB | 129 KB (96%) | ✓ | 3rd |
| https://cfl.dropboxstatic.com/static/atlas/warp/warp_page_edison_bundle_amd/dist/c_trial-cards_trial-comparison-card-vflX55NNj.js | 110 KB | 99 KB (90%) | ✓ | 3rd |
| https://cfl.dropboxstatic.com/static/atlas/privacy_consent/ccpa_iframe_bundle_amd/dist/e_privacy_consent_static_ccpa_iframe-vflty13f-.js | 186 KB | 80 KB (43%) | ✓ | 3rd |
| https://accounts.google.com/gsi/client | 96 KB | 68 KB (72%) | ✓ | 3rd |
| https://cfl.dropboxstatic.com/static/metaserver/static/pithos/zoom_chat_client.bundle-vflNLYeYY.js | 75 KB | 56 KB (75%) | ✓ | 3rd |
| https://cfl.dropboxstatic.com/static/atlas/warp/warp_page_edison_bundle_amd/dist/c_fingerprintjs_fpjs-pro-static_fp-vflGINDbV.js | 82 KB | 28 KB (34%) | ✓ | 3rd |
| https://cfl.dropboxstatic.com/static/atlas/privacy_consent/ccpa_iframe_bundle_amd/dist/e_core_exception_reporter-vflBUHcDZ.js | 34 KB | 25 KB (75%) | ✓ | 3rd |
| https://cfl.dropboxstatic.com/static/atlas/warp/warp_page_edison_bundle_amd/dist/e_core_exception_reporter-vfljprIwk.js | 34 KB | 25 KB (73%) | ✓ | 3rd |
| https://cfl.dropboxstatic.com/static/atlas/warp/warp_page_edison_bundle_amd/dist/c_ui_modal_dig-vflXcOKKo.js | 2 KB | — | ✓ | 3rd |
Consider code splitting or tree shaking to reduce unused code.
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.
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.
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.
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.
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
FPage Weight InventoryAction275 resources · 11.8 MB · 782 KB savings availableFIX
~782.0 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 275 resources | 11.8 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization16 images, 0 KB saveableREVIEW
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Text CompressionAll text resources are compressedPASS
A+Font Loading8 fonts (412 KB)PASS
Web fonts
8
412 KB total
Render-blocking
0
of 8
Dominant font-display
swap
Most common across fonts
Font loading timeline
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 CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints7 hints, 0 missing preconnectsPASS
Current Resource Hints
7 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall275 requests over 8108msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
cfl.dropboxstatic.com cfl.dropboxstatic.com | Other | 3251ms | 523 KB | 52% | $56/mo | Costly |
www.dropbox.com www.dropbox.com | Other | 2459ms | 104 KB | — | $42/mo | Costly |
Unattributable Unattributable | Other | 2384ms | 0 KB | — | $41/mo | Costly |
cfl.dropboxstatic.com cfl.dropboxstatic.com | Other | 1475ms | 82 KB | 34% | $25/mo | Costly |
cfl.dropboxstatic.com cfl.dropboxstatic.com | Other | 1170ms | 1 KB | — | $20/mo | Costly |
cfl.dropboxstatic.com cfl.dropboxstatic.com | Other | 789ms | 0 KB | — | $14/mo | Costly |
cfl.dropboxstatic.com cfl.dropboxstatic.com | Other | 433ms | 16 KB | — | $7/mo | Costly |
assets.adobedtm.com assets.adobedtm.com | Other | 374ms | 48 KB | — | $6/mo | Costly |
cfl.dropboxstatic.com cfl.dropboxstatic.com | Other | 333ms | 186 KB | 43% | $6/mo | Costly |
assets.adobedtm.com assets.adobedtm.com | Other | 274ms | 1 KB | — | $5/mo | Costly |
cfl.dropboxstatic.com cfl.dropboxstatic.com | Other | 255ms | 47 KB | — | $4/mo | Costly |
cfl.dropboxstatic.com cfl.dropboxstatic.com | Other | 223ms | 4 KB | — | $4/mo | Costly |
cfl.dropboxstatic.com cfl.dropboxstatic.com | Other | 220ms | 20 KB | — | $4/mo | Costly |
cfl.dropboxstatic.com cfl.dropboxstatic.com | Other | 219ms | 47 KB | — | $4/mo | Costly |
cfl.dropboxstatic.com cfl.dropboxstatic.com | Other | 183ms | 17 KB | — | $3/mo | Optional |
accounts.google.com accounts.google.com | Other | 178ms | 96 KB | 72% | $3/mo | Optional |
www.dropbox.com www.dropbox.com | Other | 153ms | 11 KB | — | $3/mo | Optional |
cfl.dropboxstatic.com cfl.dropboxstatic.com | Other | 131ms | 10 KB | — | $2/mo | Optional |
cfl.dropboxstatic.com cfl.dropboxstatic.com | Other | 101ms | 75 KB | 75% | $2/mo | Optional |
cfl.dropboxstatic.com cfl.dropboxstatic.com | Other | 88ms | 16 KB | — | $2/mo | Optional |
cfl.dropboxstatic.com cfl.dropboxstatic.com | Other | 82ms | 2 KB | — | $1/mo | Optional |
cfl.dropboxstatic.com cfl.dropboxstatic.com | Other | 82ms | 135 KB | 96% | $1/mo | Optional |
cfl.dropboxstatic.com cfl.dropboxstatic.com | Other | 80ms | 1 KB | — | $1/mo | Optional |
cfl.dropboxstatic.com cfl.dropboxstatic.com | Other | 79ms | 5 KB | — | $1/mo | Optional |
cfl.dropboxstatic.com cfl.dropboxstatic.com | Other | 78ms | 11 KB | — | $1/mo | Optional |
assets.adobedtm.com assets.adobedtm.com | Other | 60ms | 1 KB | — | $1/mo | Optional |
cfl.dropboxstatic.com cfl.dropboxstatic.com | Other | 57ms | 19 KB | — | $1/mo | Optional |
www.dropbox.com www.dropbox.com | Other | 57ms | 0 KB | — | $1/mo | Optional |
cfl.dropboxstatic.com cfl.dropboxstatic.com | Other | 55ms | 1 KB | — | $1/mo | Optional |
assets.adobedtm.com assets.adobedtm.com | Other | 53ms | 1 KB | — | $1/mo | Optional |
cfl.dropboxstatic.com cfl.dropboxstatic.com | Other | 51ms | 10 KB | — | $1/mo | Optional |
www.dropbox.com www.dropbox.com | Other | 50ms | 0 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- cfl.dropboxstatic.com adds 3251ms and costs ~$56/month
- www.dropbox.com adds 2459ms and costs ~$42/month
- Unattributable adds 2384ms and costs ~$41/month
- cfl.dropboxstatic.com adds 1475ms and costs ~$25/month
- cfl.dropboxstatic.com adds 1170ms and costs ~$20/month
- cfl.dropboxstatic.com adds 789ms and costs ~$14/month
- cfl.dropboxstatic.com adds 433ms and costs ~$7/month
- assets.adobedtm.com adds 374ms and costs ~$6/month
- cfl.dropboxstatic.com adds 333ms and costs ~$6/month
- assets.adobedtm.com adds 274ms and costs ~$5/month
- cfl.dropboxstatic.com adds 255ms and costs ~$4/month
- cfl.dropboxstatic.com adds 223ms and costs ~$4/month
- cfl.dropboxstatic.com adds 220ms and costs ~$4/month
- cfl.dropboxstatic.com adds 219ms and costs ~$4/month
100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.
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
cfl.dropboxstatic.com takes 3251ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
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.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
www.dropbox.com takes 2459ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Unattributable takes 2384ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
cfl.dropboxstatic.com takes 1475ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
cfl.dropboxstatic.com takes 1170ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
cfl.dropboxstatic.com takes 789ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
cfl.dropboxstatic.com takes 433ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
assets.adobedtm.com takes 374ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
cfl.dropboxstatic.com takes 333ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
assets.adobedtm.com takes 274ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
cfl.dropboxstatic.com takes 255ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
cfl.dropboxstatic.com takes 223ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
cfl.dropboxstatic.com takes 220ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
cfl.dropboxstatic.com takes 219ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
72% of accounts.google.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
75% of cfl.dropboxstatic.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
96% of cfl.dropboxstatic.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev