Performance
· 23 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.
922 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.67 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
524 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.
1.96 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.
3.90 s
Page Load Progression
DPage Weight BudgetAction2.4 MB transferred, 118 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
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
DJS Execution CostAction3326ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.roic.ai/ | 1011ms | 51ms | 6ms | 3rd |
| Unattributable | 688ms | 146ms | 0ms | 1st |
| https://www.roic.ai/_next/static/chunks/2f8dqjgh6uwnb.js | 461ms | 441ms | 6ms | 3rd |
| https://www.roic.ai/_next/static/chunks/04sjpfvbgg71n.js | 418ms | 73ms | 23ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-WNHNKZ3G | 170ms | 116ms | 26ms | 3rd |
| https://www.roic.ai/_next/static/chunks/2q8e36i59ahhl.js | 154ms | 144ms | 8ms | 3rd |
| https://www.roic.ai/_next/static/chunks/20puv6hh70uh8.js | 119ms | 118ms | 0ms | 3rd |
| https://www.roic.ai/cdn-cgi/challenge-platform/scripts/jsd/main.js | 112ms | 103ms | 1ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-17730413662&cx=c>m=4e6al1 | 112ms | 98ms | 13ms | 3rd |
| https://scripts.clarity.ms/0.8.75-beta/clarity.js | 80ms | 77ms | 2ms | 3rd |
FJS BundlesAction60 scripts, 624 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.roic.ai/_next/static/chunks/2bipmgbwvl282.js | 126 KB | 122 KB (100%) | ✓ | 3rd |
| https://www.roic.ai/_next/static/chunks/1p5lmy-m2vzby.js | 83 KB | 80 KB (100%) | ✓ | 3rd |
| https://accounts.google.com/gsi/client | 100 KB | 75 KB (76%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-WNHNKZ3G | 153 KB | 71 KB (46%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-17730413662&cx=c>m=4e6al1 | 164 KB | 64 KB (39%) | ✓ | 3rd |
| https://www.roic.ai/_next/static/chunks/2q8e36i59ahhl.js | 80 KB | 40 KB (50%) | ✓ | 3rd |
| https://www.roic.ai/_next/static/chunks/04sjpfvbgg71n.js | 66 KB | 37 KB (57%) | ✓ | 3rd |
| https://www.roic.ai/_next/static/chunks/3i_8_2-mxdm0c.js | 42 KB | 35 KB (85%) | ✓ | 3rd |
| https://b.roic.ai/static/1.418.6/surveys.js | 33 KB | 27 KB (81%) | ✓ | 3rd |
| https://b.roic.ai/static/1.418.6/posthog-recorder.js | 59 KB | 25 KB (43%) | ✓ | 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 InventoryAction118 resources · 2.4 MB · 624 KB savings availableFIX
~623.5 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 118 resources | 2.4 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
CDocument CompressionActionDocument response served uncompressedREVIEW
BMain HTML Cache-ControlNo Cache-Control header on main HTML responseREVIEW
A+Text CompressionAll text resources are compressedPASS
AImage Optimization19 images, 0 KB saveablePASS
A+Font Loading4 fonts (134 KB)PASS
Web fonts
4
134 KB total
Render-blocking
0
of 4
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
AAsset Compression1 of 1 asset host still on gzipPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Server-Timing Observability3 Server-Timing entries advertisedPASS
A+Server Response Intelligence1 server-response signal(s) detectedPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall118 requests over 4523msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.roic.ai www.roic.ai | Other | 1011ms | 32 KB | — | $13/mo | Costly |
www.roic.ai www.roic.ai | Other | 461ms | 64 KB | 36% | $6/mo | Costly |
www.roic.ai www.roic.ai | Other | 418ms | 66 KB | 57% | $6/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 170ms | 153 KB | 46% | $2/mo | Optional |
www.roic.ai www.roic.ai | Other | 154ms | 80 KB | 50% | $2/mo | Optional |
www.roic.ai www.roic.ai | Other | 119ms | 6 KB | — | $2/mo | Optional |
www.roic.ai www.roic.ai | Other | 112ms | 0 KB | — | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 112ms | 164 KB | 39% | $1/mo | Optional |
Microsoft Clarity scripts.clarity.ms | Session Replay | 80ms | 25 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- www.roic.ai adds 1011ms and costs ~$13/month
- www.roic.ai adds 461ms and costs ~$6/month
- www.roic.ai adds 418ms and costs ~$6/month
79% 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.roic.ai takes 1011ms 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.roic.ai takes 461ms 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.roic.ai takes 418ms 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
57% of www.roic.ai'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
Image Optimization48 images, 467 KB total, 243 KB wastedINFO
Image Optimization Audit
Total Images
48
Total Size
467 KB
Oversized
15
Wasted
243 KB