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.
1.68 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
3.64 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.28 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.006
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.68 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.
4.43 s
Page Load Progression
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
DJS Execution CostAction2181ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.33across.com/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=9ed523176cc3af2c | 1816ms | 1744ms | 25ms | 3rd |
| Unattributable | 202ms | 9ms | 0ms | 3rd |
| https://www.33across.com/ | 112ms | 12ms | 2ms | 3rd |
| https://challenges.cloudflare.com/turnstile/v0/g/b0a7532ac8ec/api.js?onload=cFyL2&render=explicit | 51ms | 37ms | 7ms | 3rd |
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Page Weight Budget526 KB transferred, 21 requestsPASS
A+Text CompressionAll text resources are compressedPASS
AImage Optimization3 images, 0 KB saveablePASS
A+Font LoadingNo web fonts (system fonts)PASS
A+JS Bundles8 scripts, 0 KB unusedPASS
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.33across.com/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=9ed523176cc3af2c | 73 KB | — | ✓ | 3rd |
| blob:https://www.33across.com/d0f91be2-142e-4176-b7cf-7b6ed07b0abd | 0 KB | — | ✓ | 3rd |
| https://challenges.cloudflare.com/turnstile/v0/g/b0a7532ac8ec/api.js?onload=cFyL2&render=explicit | 17 KB | — | ✓ | 3rd |
| blob:https://www.33across.com/0098390c-3887-45c0-91d4-45772e4cc9bb | -0 KB | — | ✓ | 3rd |
| blob:https://challenges.cloudflare.com/e7490e05-ef60-46d7-99a5-47ca9e341cb9 | 0 KB | — | ✓ | 3rd |
| blob:https://challenges.cloudflare.com/6eb7c261-25b5-4265-a486-00a54f2125d4 | -0 KB | — | ✓ | 3rd |
| blob:https://challenges.cloudflare.com/6eb7c261-25b5-4265-a486-00a54f2125d4 | -0 KB | — | ✓ | 3rd |
| blob:https://challenges.cloudflare.com/f5bb754a-a88b-456d-ab88-240fe6090b15 | -0 KB | — | ✓ | 3rd |
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
APage Weight Inventory21 resources · 526 KB · 0 KB savings availablePASS
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 21 resources | 526.2 KiB | ||||||
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall21 requests over 3384msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.33across.com www.33across.com | Other | 1816ms | 73 KB | — | $24/mo | Costly |
Unattributable Unattributable | Other | 202ms | 0 KB | — | $3/mo | Costly |
www.33across.com www.33across.com | Other | 112ms | 3 KB | — | $1/mo | Optional |
challenges.cloudflare.com challenges.cloudflare.com | Other | 51ms | 17 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- www.33across.com adds 1816ms and costs ~$24/month
- Unattributable adds 202ms and costs ~$3/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
www.33across.com takes 1816ms 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 202ms 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