Performance
· 22 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.
1.28 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.91 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
43 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.018
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.28 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.
2.91 s
Page Load Progression
FJS BundlesAction31 scripts, 545 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=G-Q65LZ4BNEM | 0 KB | 72 KB (43%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-Q65LZ4BNEM | 168 KB | 72 KB (43%) | ✓ | 3rd |
| https://ayvion.io/assets/index-BT1UAV__.js | 210 KB | 71 KB (34%) | ✓ | 1st |
| https://ayvion.io/assets/index-BT1UAV__.js | 0 KB | 71 KB (34%) | ✓ | 1st |
| https://ayvion.io/assets/client-CG6fWpyt.js | 54 KB | 52 KB (96%) | ✓ | 1st |
| https://ayvion.io/assets/client-CG6fWpyt.js | 0 KB | 52 KB (96%) | ✓ | 1st |
| https://connect.facebook.net/en_US/fbevents.js | 106 KB | 37 KB (35%) | ✓ | 3rd |
| https://connect.facebook.net/en_US/fbevents.js | 0 KB | 37 KB (35%) | ✓ | 3rd |
| https://connect.facebook.net/signals/config/808298411928014?v=2.9.390&r=stable&domain=ayvion.io&hme=a767ae4c6a92a40ee4d7e358a937ad845c8bdb98a3bbe3412069dded3a7be57d&ex_m=115%2C221%2C166%2C26%2C80%2C81%2C158%2C76%2C75%2C11%2C176%2C100%2C20%2C150%2C138%2C45%2C83%2C88%2C146%2C171%2C178%2C31%2C17%2C30%2C18%2C32%2C33%2C34%2C36%2C54%2C159%2C85%2C123%2C22%2C24%2C50%2C46%2C48%2C47%2C93%2C102%2C106%2C121%2C157%2C160%2C52%2C122%2C28%2C25%2C130%2C77%2C42%2C162%2C161%2C163%2C154%2C152%2C29%2C41%2C65%2C120%2C173%2C78%2C21%2C125%2C91%2C74%2C23%2C95%2C96%2C127%2C94%2C148%2C147%2C151%2C107%2C172%2C175%2C40%2C55%2C124%2C53%2C8%2C4%2C5%2C7%2C6%2C3%2C101%2C112%2C179%2C188%2C235%2C82%2C248%2C247%2C246%2C14%2C27%2C39%2C61%2C114%2C67%2C10%2C71%2C108%2C109%2C110%2C116%2C141%2C37%2C35%2C143%2C144%2C145%2C140%2C139%2C167%2C84%2C170%2C168%2C169%2C56%2C66%2C134%2C19%2C174%2C51%2C297%2C298%2C299%2C296%2C312%2C335%2C228%2C217%2C68%2C218%2C216%2C338%2C329%2C58%2C229%2C118%2C142%2C90%2C132%2C60%2C131%2C137%2C136%2C64%2C72%2C70%2C164%2C86%2C87%2C126%2C43%2C38%2C59%2C62%2C111%2C177%2C1%2C135%2C16%2C133%2C12%2C2%2C63%2C103%2C15%2C73%2C69%2C129%2C99%2C98%2C181%2C182%2C104%2C105%2C9%2C113%2C180%2C57%2C155%2C97%2C89%2C79%2C128%2C117%2C49%2C156%2C0%2C92%2C149%2C153%2C165%2C44%2C119%2C13%2C183 | 120 KB | 31 KB (26%) | ✓ | 3rd |
| https://ayvion.io/assets/Footer-CpDGVNXp.js | 192 KB | 25 KB (13%) | ✓ | 1st |
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 Budget1.2 MB transferred, 50 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
BThird-Party Impact42% third-party, 0 ms blockingREVIEW
CJS Execution CostAction1759ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://ayvion.io/en | 698ms | 2ms | 1ms | 1st |
| https://ayvion.io/assets/index-BT1UAV__.js | 407ms | 317ms | 17ms | 1st |
| https://ayvion.io/assets/Footer-CpDGVNXp.js | 247ms | 68ms | 14ms | 1st |
| Unattributable | 143ms | 2ms | 0ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-Q65LZ4BNEM | 130ms | 83ms | 33ms | 3rd |
| https://connect.facebook.net/signals/config/808298411928014?v=2.9.390&r=stable&domain=ayvion.io&hme=a767ae4c6a92a40ee4d7e358a937ad845c8bdb98a3bbe3412069dded3a7be57d&ex_m=115%2C221%2C166%2C26%2C80%2C81%2C158%2C76%2C75%2C11%2C176%2C100%2C20%2C150%2C138%2C45%2C83%2C88%2C146%2C171%2C178%2C31%2C17%2C30%2C18%2C32%2C33%2C34%2C36%2C54%2C159%2C85%2C123%2C22%2C24%2C50%2C46%2C48%2C47%2C93%2C102%2C106%2C121%2C157%2C160%2C52%2C122%2C28%2C25%2C130%2C77%2C42%2C162%2C161%2C163%2C154%2C152%2C29%2C41%2C65%2C120%2C173%2C78%2C21%2C125%2C91%2C74%2C23%2C95%2C96%2C127%2C94%2C148%2C147%2C151%2C107%2C172%2C175%2C40%2C55%2C124%2C53%2C8%2C4%2C5%2C7%2C6%2C3%2C101%2C112%2C179%2C188%2C235%2C82%2C248%2C247%2C246%2C14%2C27%2C39%2C61%2C114%2C67%2C10%2C71%2C108%2C109%2C110%2C116%2C141%2C37%2C35%2C143%2C144%2C145%2C140%2C139%2C167%2C84%2C170%2C168%2C169%2C56%2C66%2C134%2C19%2C174%2C51%2C297%2C298%2C299%2C296%2C312%2C335%2C228%2C217%2C68%2C218%2C216%2C338%2C329%2C58%2C229%2C118%2C142%2C90%2C132%2C60%2C131%2C137%2C136%2C64%2C72%2C70%2C164%2C86%2C87%2C126%2C43%2C38%2C59%2C62%2C111%2C177%2C1%2C135%2C16%2C133%2C12%2C2%2C63%2C103%2C15%2C73%2C69%2C129%2C99%2C98%2C181%2C182%2C104%2C105%2C9%2C113%2C180%2C57%2C155%2C97%2C89%2C79%2C128%2C117%2C49%2C156%2C0%2C92%2C149%2C153%2C165%2C44%2C119%2C13%2C183 | 72ms | 61ms | 10ms | 3rd |
| https://connect.facebook.net/en_US/fbevents.js | 61ms | 46ms | 15ms | 3rd |
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
BCompression AlgorithmMain response uses gzip; brotli would be ~20% smallerREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
CPage Weight InventoryAction50 resources · 1.2 MB · 545 KB savings availableREVIEW
~544.9 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 50 resources | 1.2 MiB | ||||||
BHTTP Cachingno-cache, must-revalidate, max-age=0REVIEW
no-cache, must-revalidate, max-age=0
| Directive | Value | Meaning |
|---|---|---|
| no-cache | — | Cache but always revalidate first |
| must-revalidate | — | Must recheck with server after expiry |
| max-age | 0 | Cache for 0 seconds |
A+Text CompressionAll text resources are compressedPASS
AImage Optimization2 images, 0 KB saveablePASS
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
A+Font Loading6 fonts (101 KB)PASS
Web fonts
6
101 KB total
Render-blocking
0
of 6
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
A+LCP Image PreloadLCP preload audit not availablePASS
A+Main HTML Cache-ControlMain HTML uses no-cache -- safe revalidate-on-request policyPASS
AServer Response Intelligence2 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 Waterfall50 requests over 1939msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Google Tag Manager www.googletagmanager.com | Tag Manager | 130ms | 0 KB | 43% | $2/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 72ms | 120 KB | 26% | $1/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 61ms | 0 KB | 35% | $1/mo | Optional |
Image Optimization2 images, 244 KB total, 119 KB wastedINFO
Image Optimization Audit
Total Images
2
Total Size
244 KB
Oversized
1
Wasted
119 KB