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.
1.94 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
3.50 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.87 s
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.
2.40 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.
10.52 s
Page Load Progression
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction5590ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.business.com/tms3/algos/10.17.js | 1914ms | 942ms | 7ms | 3rd |
| https://www.business.com/ | 891ms | 13ms | 29ms | 3rd |
| https://www.business.com/_next/static/chunks/0_wlpgj-fjipb.js | 695ms | 614ms | 30ms | 3rd |
| Unattributable | 571ms | 43ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-J0E2FBTCSR&cx=c>m=4e64h1 | 487ms | 376ms | 67ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-M95G2X9>m_auth=>m_preview=>m_cookies_win=x | 441ms | 359ms | 69ms | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-1024970540&cx=c>m=4e64h1 | 260ms | 201ms | 53ms | 3rd |
| https://www.business.com/akam/13/1b00ae | 177ms | 157ms | 5ms | 3rd |
| https://cdn.userway.org/widgetapp/2026-04-14-10-40-20/widget_app_base_1776163220800.js | 95ms | 61ms | 19ms | 3rd |
| https://www.business.com/_next/static/chunks/00f19xf82xwcl.js | 61ms | 46ms | 4ms | 3rd |
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization13 images, 0 KB saveableREVIEW
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 | 135 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 (37%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-J0E2FBTCSR&cx=c>m=4e64h1 | 174 KB | 58 KB (33%) | ✓ | 3rd |
| https://cdn.userway.org/widgetapp/2026-04-14-10-40-20/widget_app_base_1776163220800.js | 48 KB | 28 KB (59%) | ✓ | 3rd |
| https://www.business.com/_next/static/chunks/0_wlpgj-fjipb.js | 64 KB | 22 KB (34%) | ✓ | 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 Inventory68 resources · 988 KB · 226 KB savings availableREVIEW
~226.3 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 68 resources | 988.4 KiB | ||||||
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
APage Weight Budget988 KB transferred, 68 requestsPASS
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
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 Hints5 hints, 0 missing preconnectsPASS
Current Resource Hints
5 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall68 requests over 1941msINFO
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 | 1914ms | 19 KB | — | €31/mo | Costly |
www.business.com www.business.com | Other | 891ms | 38 KB | — | €14/mo | Costly |
www.business.com www.business.com | Other | 695ms | 64 KB | 34% | €11/mo | Costly |
Unattributable Unattributable | Other | 571ms | 0 KB | — | €9/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 487ms | 174 KB | 33% | €8/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 441ms | 162 KB | 37% | €7/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 260ms | 135 KB | 44% | €4/mo | Costly |
www.business.com www.business.com | Other | 177ms | 9 KB | — | €3/mo | Optional |
cdn.userway.org cdn.userway.org | Other | 95ms | 48 KB | 59% | €2/mo | Optional |
www.business.com www.business.com | Other | 61ms | 11 KB | — | €1/mo | Optional |
These scripts may cost more than they're worth
- www.business.com adds 1914ms and costs ~€31/month
- www.business.com adds 891ms and costs ~€14/month
- www.business.com adds 695ms and costs ~€11/month
- Unattributable adds 571ms and costs ~€9/month
- Google Tag Manager adds 487ms and costs ~€8/month
- Google Tag Manager adds 441ms and costs ~€7/month
- Google Tag Manager adds 260ms 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
www.business.com takes 1914ms 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 891ms 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 695ms 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 571ms 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
Google Tag Manager takes 487ms 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
Google Tag Manager takes 441ms 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
Google Tag Manager takes 260ms 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
59% of cdn.userway.org'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