Performance
· 15 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.
527 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
905 ms
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
146 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.000
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
779 ms
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
2.49 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.
BPage Weight Budget1.2 MB transferred, 73 requestsREVIEW
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
BImage Optimization18 images, 0 KB saveableREVIEW
CJS Execution CostAction1285ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.business.com/tms3/algos/10.17.js | 476ms | 224ms | 2ms | 3rd |
| https://www.business.com/ | 207ms | 4ms | 7ms | 3rd |
| https://www.business.com/_next/static/chunks/0_wlpgj-fjipb.js | 171ms | 149ms | 7ms | 3rd |
| Unattributable | 147ms | 7ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-J0E2FBTCSR&cx=c>m=4e64h1 | 113ms | 93ms | 18ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-M95G2X9>m_auth=>m_preview=>m_cookies_win=x | 106ms | 86ms | 17ms | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-1024970540&cx=c>m=4e64h1 | 65ms | 51ms | 12ms | 3rd |
CJS BundlesAction28 scripts, 226 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/destination?id=AW-1024970540&cx=c>m=4e64h1 | 134 KB | 59 KB (44%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-M95G2X9>m_auth=>m_preview=>m_cookies_win=x | 162 KB | 59 KB (36%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-J0E2FBTCSR&cx=c>m=4e64h1 | 174 KB | 58 KB (34%) | ✓ | 3rd |
| https://cdn.userway.org/widgetapp/2026-04-14-10-40-20/widget_app_base_1776163220800.js | 48 KB | 27 KB (58%) | ✓ | 3rd |
| https://www.business.com/_next/static/chunks/0_wlpgj-fjipb.js | 64 KB | 22 KB (35%) | ✓ | 3rd |
| https://www.business.com/akam/13/1b00ae | 9 KB | — | ✓ | 3rd |
| https://www.business.com/_next/static/chunks/0_z06wzfxwg_1.js | 9 KB | — | ✓ | 3rd |
| https://www.business.com/_next/static/chunks/184gr~x-lt614.js | 10 KB | — | ✓ | 3rd |
| https://www.business.com/_next/static/chunks/0sr0mu3hl6n-t.js | 23 KB | — | ✓ | 3rd |
| https://www.business.com/_next/static/chunks/04stw3a-hix2_.js | 4 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
BPage Weight Inventory73 resources · 1.2 MB · 226 KB savings availableREVIEW
~226.0 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 73 resources | 1.2 MiB | ||||||
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 Loading1 fonts (37 KB)PASS
Web fonts
1
37 KB total
Render-blocking
0
of 1
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 HintsNo optimization neededPASS
Network Waterfall73 requests over 1832msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.business.com www.business.com | Other | 476ms | 19 KB | — | €8/mo | Costly |
www.business.com www.business.com | Other | 207ms | 38 KB | — | €3/mo | Costly |
www.business.com www.business.com | Other | 171ms | 64 KB | 35% | €3/mo | Optional |
Unattributable Unattributable | Other | 147ms | 0 KB | — | €2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 113ms | 174 KB | 34% | €2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 106ms | 162 KB | 36% | €2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 65ms | 134 KB | 44% | €1/mo | Optional |
These scripts may cost more than they're worth
- www.business.com adds 476ms and costs ~€8/month
- www.business.com adds 207ms 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.business.com takes 476ms 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
www.business.com takes 207ms 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