Performance
· 25 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.
2.00 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.79 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
471 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.002
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
2.15 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.
3.88 s
Page Load Progression
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CJS Execution CostAction1105ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://domains.atom.com/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=9fe7d75e3b09d113 | 874ms | 839ms | 14ms | 3rd |
| Unattributable | 123ms | 4ms | 0ms | 1st |
| https://domains.atom.com/lpd/name/Equip.net | 107ms | 39ms | 2ms | 3rd |
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
CCompression AlgorithmActionMain response served uncompressedREVIEW
BMain HTML Cache-ControlNo Cache-Control header on main HTML responseREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Page Weight Budget589 KB transferred, 22 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://domains.atom.com/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=9fe7d75e3b09d113 | 63 KB | — | ✓ | 3rd |
| blob:https://domains.atom.com/bef5c016-7889-42e5-8f6a-b83803c45fe2 | 0 KB | — | ✓ | 3rd |
| https://challenges.cloudflare.com/turnstile/v0/g/825e783f7fae/api.js?onload=GHkYU6&render=explicit | 21 KB | — | ✓ | 3rd |
| blob:https://domains.atom.com/9a982010-2d2f-47df-99ca-5c527eb3cb16 | -0 KB | — | ✓ | 3rd |
| blob:https://challenges.cloudflare.com/2de4fa93-8545-41e6-b304-020d028b7427 | 0 KB | — | ✓ | 3rd |
| blob:https://challenges.cloudflare.com/75c5d0c0-4650-4efd-b963-99b26b768576 | -0 KB | — | ✓ | 3rd |
| blob:https://challenges.cloudflare.com/75c5d0c0-4650-4efd-b963-99b26b768576 | -0 KB | — | ✓ | 3rd |
| blob:https://challenges.cloudflare.com/c6b92c45-29a8-4852-a80a-63146280799d | -0 KB | — | ✓ | 3rd |
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Server Response Intelligence1 server-response signal(s) detectedPASS
APage Weight Inventory22 resources · 589 KB · 0 KB savings availablePASS
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 22 resources | 588.8 KiB | ||||||
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
AJavaScript Blocking1 JS blocking issue(s) detectedPASS
A+CSS Performance DepthNo CSS performance depth issues detectedPASS
Network Waterfall22 requests over 2892msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
domains.atom.com domains.atom.com | Other | 874ms | 63 KB | — | $12/mo | Costly |
domains.atom.com domains.atom.com | Other | 107ms | 4 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- domains.atom.com adds 874ms and costs ~$12/month
89% 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
domains.atom.com takes 874ms 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