Performance
· 27 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.
2.74 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
7.71 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
3.26 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.
6.12 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.
18.17 s
Page Load Progression
DPage Weight BudgetAction2.3 MB transferred, 105 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
FJS Execution CostAction12417ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.roic.ai/ | 4009ms | 237ms | 52ms | 3rd |
| https://www.roic.ai/_next/static/chunks/2f8dqjgh6uwnb.js | 2017ms | 1920ms | 20ms | 3rd |
| Unattributable | 1736ms | 627ms | 0ms | 1st |
| https://www.roic.ai/_next/static/chunks/04sjpfvbgg71n.js | 857ms | 248ms | 33ms | 3rd |
| https://www.roic.ai/_next/static/chunks/2q8e36i59ahhl.js | 750ms | 704ms | 30ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-17730413662&cx=c>m=4e6al1 | 499ms | 416ms | 75ms | 3rd |
| https://www.roic.ai/cdn-cgi/challenge-platform/scripts/jsd/main.js | 463ms | 428ms | 4ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-WNHNKZ3G | 394ms | 336ms | 56ms | 3rd |
| https://www.roic.ai/_next/static/chunks/20puv6hh70uh8.js | 390ms | 385ms | 2ms | 3rd |
| https://scripts.clarity.ms/0.8.75-beta/clarity.js | 235ms | 221ms | 8ms | 3rd |
Showing top 10 of 20 scripts
FJS BundlesAction60 scripts, 623 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 (75%) | ✓ | 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 InventoryAction105 resources · 2.3 MB · 623 KB savings availableFIX
~623.3 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 105 resources | 2.3 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
BJavaScript Blocking2 JS blocking issue(s) detectedREVIEW
A+Text CompressionAll text resources are compressedPASS
AImage Optimization14 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 Hints8 hints, 0 missing preconnectsPASS
Current Resource Hints
8 resource hints configured
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+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
ACSS Performance Depth1 CSS depth issue(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 Waterfall105 requests over 4276msINFO
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 | 4009ms | 32 KB | — | $53/mo | Costly |
www.roic.ai www.roic.ai | Other | 2017ms | 64 KB | 36% | $27/mo | Costly |
www.roic.ai www.roic.ai | Other | 857ms | 66 KB | 57% | $11/mo | Costly |
www.roic.ai www.roic.ai | Other | 750ms | 80 KB | 50% | $10/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 499ms | 164 KB | 39% | $7/mo | Costly |
www.roic.ai www.roic.ai | Other | 463ms | 0 KB | — | $6/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 394ms | 153 KB | 46% | $5/mo | Costly |
www.roic.ai www.roic.ai | Other | 390ms | 6 KB | — | $5/mo | Costly |
Microsoft Clarity scripts.clarity.ms | Session Replay | 235ms | 25 KB | — | $3/mo | Costly |
accounts.google.com accounts.google.com | Other | 184ms | 100 KB | 75% | $2/mo | Optional |
www.roic.ai www.roic.ai | Other | 139ms | 12 KB | — | $2/mo | Optional |
b.roic.ai b.roic.ai | Other | 134ms | 59 KB | 43% | $2/mo | Optional |
www.roic.ai www.roic.ai | Other | 110ms | 83 KB | — | $1/mo | Optional |
www.roic.ai www.roic.ai | Other | 108ms | 49 KB | — | $1/mo | Optional |
www.roic.ai www.roic.ai | Other | 107ms | 34 KB | — | $1/mo | Optional |
www.roic.ai www.roic.ai | Other | 89ms | 37 KB | 69% | $1/mo | Optional |
jsDelivr cdn.jsdelivr.net | CDN | 74ms | 36 KB | — | $1/mo | Optional |
cdn.tolt.io cdn.tolt.io | Other | 71ms | 2 KB | — | $1/mo | Optional |
www.roic.ai www.roic.ai | Other | 50ms | 126 KB | 100% | $1/mo | Optional |
These scripts may cost more than they're worth
- www.roic.ai adds 4009ms and costs ~$53/month
- www.roic.ai adds 2017ms and costs ~$27/month
- www.roic.ai adds 857ms and costs ~$11/month
- www.roic.ai adds 750ms and costs ~$10/month
- Google Tag Manager adds 499ms and costs ~$7/month
- www.roic.ai adds 463ms and costs ~$6/month
- Google Tag Manager adds 394ms and costs ~$5/month
- www.roic.ai adds 390ms and costs ~$5/month
- Microsoft Clarity adds 235ms and costs ~$3/month
86% 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 4009ms 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 2017ms 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 857ms 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
www.roic.ai takes 750ms 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 499ms 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 463ms 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 394ms 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 390ms 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
Microsoft Clarity takes 235ms 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
75% of accounts.google.com'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
69% 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
100% 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