https://ayvion.io
Performance
· 27 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.SCORE
83
GRADE
B
FIX
2
REVIEW
7
PASS
14
INFO
4
Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
45
96
100
100
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
5.74 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
10.44 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
576 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.
6.32 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.
10.76 s
Page Load Progression
Checks
2714 PASS 7 REVIEW 2 FIX
FJS Execution CostAction4735ms total JS executionFIX
JS Execution Cost
Action4735ms total JS execution
4735ms total JS execution
Warning::
https://ayvion.io/assets/index-DRbQJGyf.js: 1391ms CPU time
Warning::
https://ayvion.io/en: 906ms CPU time
Warning::
Unattributable: 717ms CPU time
Warning::
https://www.googletagmanager.com/gtag/js?id=G-Q65L...: 467ms CPU time
Warning::
https://ayvion.io/assets/Footer-DObf3pLu.js: 407ms CPU time
Info::
Third-party scripts: 1143ms (24% of total)
Main Thread Breakdown
Script Evaluation 46% Other 21% Style & Layout 14% Script Parsing & Compilation 11% Rendering 4%
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://ayvion.io/assets/index-DRbQJGyf.js | 1391ms | 1182ms | 88ms | 1st |
| https://ayvion.io/en | 906ms | 7ms | 3ms | 1st |
| Unattributable | 717ms | 11ms | 0ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-Q65LZ4BNEM | 467ms | 303ms | 157ms | 3rd |
| https://ayvion.io/assets/Footer-DObf3pLu.js | 407ms | 106ms | 60ms | 1st |
| https://connect.facebook.net/en_US/fbevents.js | 349ms | 242ms | 106ms | 3rd |
| https://connect.facebook.net/signals/config/808298411928014?v=2.9.433&r=stable&domain=ayvion.io&im=1&hme=4453c87d489b6902031c012cadd2731893cd69feb64fe8a61b339727247a7703&ex_m=118%2C242%2C171%2C27%2C82%2C83%2C162%2C78%2C77%2C11%2C181%2C102%2C20%2C153%2C141%2C46%2C85%2C90%2C149%2C176%2C183%2C8%2C4%2C5%2C7%2C6%2C3%2C103%2C115%2C32%2C17%2C31%2C18%2C33%2C34%2C35%2C37%2C55%2C163%2C87%2C126%2C22%2C24%2C51%2C47%2C49%2C48%2C95%2C104%2C108%2C124%2C160%2C164%2C53%2C125%2C29%2C26%2C133%2C79%2C43%2C166%2C165%2C167%2C157%2C155%2C30%2C42%2C66%2C123%2C178%2C80%2C21%2C128%2C93%2C76%2C23%2C97%2C98%2C130%2C96%2C151%2C150%2C154%2C109%2C177%2C180%2C41%2C56%2C127%2C54%2C161%2C72%2C185%2C110%2C184%2C211%2C263%2C84%2C283%2C282%2C281%2C14%2C25%2C28%2C40%2C62%2C117%2C68%2C10%2C73%2C111%2C112%2C113%2C119%2C144%2C38%2C36%2C146%2C147%2C148%2C143%2C142%2C172%2C86%2C175%2C173%2C174%2C57%2C69%2C67%2C137%2C19%2C179%2C52%2C333%2C334%2C335%2C332%2C349%2C371%2C256%2C238%2C70%2C239%2C237%2C374%2C365%2C59%2C257%2C121%2C145%2C92%2C135%2C61%2C134%2C140%2C139%2C65%2C74%2C168%2C88%2C89%2C129%2C44%2C39%2C60%2C63%2C114%2C182%2C1%2C138%2C16%2C136%2C12%2C2%2C64%2C105%2C15%2C75%2C71%2C132%2C101%2C100%2C187%2C188%2C106%2C107%2C9%2C116%2C186%2C58%2C158%2C99%2C91%2C81%2C131%2C120%2C169%2C50%2C159%2C0%2C94%2C152%2C156%2C170%2C45%2C122%2C13%2C189 | 246ms | 201ms | 44ms | 3rd |
| https://ayvion.io/__l5e/events.270c78a44fc53e7b.js | 117ms | 51ms | 9ms | 1st |
| https://www.googletagmanager.com/gtm.js?id=GTM-MP5ZFTFH | 81ms | 56ms | 24ms | 3rd |
| https://ayvion.io/~flock.js | 54ms | 42ms | 7ms | 1st |
FJS BundlesAction34 scripts, 529 KB unusedFIX
JS Bundles
Action34 scripts, 529 KB unused
34 scripts, 529 KB unused
Warning::
https://ayvion.io/assets/index-DRbQJGyf.js: 74 KB unused (35%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://ayvion.io/assets/index-DRbQJGyf.js: 74 KB unused (35%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-Q65L...: 74 KB unused (42%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-Q65L...: 74 KB unused (42%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://ayvion.io/assets/client-CG6fWpyt.js: 52 KB unused (96%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 529 KB
529 KB unused JavaScript
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://ayvion.io/assets/index-DRbQJGyf.js | 0 KB | 74 KB (35%) | ✓ | 1st |
| https://ayvion.io/assets/index-DRbQJGyf.js | 213 KB | 74 KB (35%) | ✓ | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-Q65LZ4BNEM | 178 KB | 74 KB (42%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-Q65LZ4BNEM | 0 KB | 74 KB (42%) | ✓ | 3rd |
| https://ayvion.io/assets/client-CG6fWpyt.js | 0 KB | 52 KB (96%) | ✓ | 1st |
| https://ayvion.io/assets/client-CG6fWpyt.js | 54 KB | 52 KB (96%) | ✓ | 1st |
| https://connect.facebook.net/en_US/fbevents.js | 0 KB | 39 KB (35%) | ✓ | 3rd |
| https://connect.facebook.net/en_US/fbevents.js | 112 KB | 39 KB (35%) | ✓ | 3rd |
| https://ayvion.io/assets/Footer-DObf3pLu.js | 219 KB | 25 KB (12%) | ✓ | 1st |
| https://ayvion.io/assets/Footer-DObf3pLu.js | 0 KB | 25 KB (12%) | ✓ | 1st |
Consider code splitting or tree shaking to reduce unused code.
Why this matters
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.
Why this matters
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.
Why this matters
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.
Why this matters
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.
Why this matters
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
BPage Weight Budget1.3 MB transferred, 58 requestsREVIEW
Page Weight Budget
1.3 MB transferred, 58 requests
1.3 MB transferred, 58 requests
Info::
Page weighs 7.3 MB (1.3 MB transferred)
Warning::
JavaScript is 1002 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1002 KB
Info::
58 HTTP requests
Info::
Estimated 0.27 g CO2 per page load
1.3 MB transferred
58 requests
0.27 g CO2 per page load
JavaScript 1002.2 KiB 77%
Images 122.2 KiB 9%
Fonts 101.1 KiB 8%
HTML 43.6 KiB 3%
CSS 21.5 KiB 2%
Other 2.8 KiB 0%
Other 1.0 KiB 0%
Other 143 B 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Under budget
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Why this matters
JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.
Source: web.dev
BThird-Party Impact43% third-party, 0 ms blockingREVIEW
Third-Party Impact
43% third-party, 0 ms blocking
43% third-party, 0 ms blocking
Info::
Third-party code accounts for 43% of page weight (551.9 KiB of 1.3 MiB)
Info::
Third-party blocking time is low (0 ms)
57%
43%
First-party Third-party
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
HTTP/3 (QUIC)
HTTP/3 not advertised
HTTP/3 not advertised
Info::
HTTP/3 (QUIC) is not advertised
HTTP/3 isn't advertised via Alt-Svc and the worker didn't negotiate h3. HTTP/3 reduces handshake latency (1-RTT instead of 2-3 RTTs) and is more resilient on lossy connections. Most modern CDNs (Cloudflare, Fastly, AWS CloudFront, Google Cloud CDN) support HTTP/3 with a single config switch -- consider enabling for mobile-heavy workloads.
BDocument CompressionDocument response uses gzip; brotli would be ~20% smallerREVIEW
Document Compression
Document response uses gzip; brotli would be ~20% smaller
Document response uses gzip; brotli would be ~20% smaller
Info::
Main HTML response uses gzip (brotli would be ~20% smaller)
All current browsers support brotli. Most CDNs (Cloudflare, Fastly, AWS CloudFront, Vercel, Netlify) can switch from gzip to brotli with a single config flag. Origin servers (nginx, Apache) need a brotli module compiled in -- nginx-brotli or Apache mod_brotli.
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
Server-Timing Observability
No Server-Timing header found
No Server-Timing header found
Info::
No Server-Timing header found
Server-Timing exposes backend timing breakdowns to browser DevTools (e.g., `db: 45ms; render: 120ms; cache: 2ms`). Useful for diagnosing slow pages without backend log access. Most modern frameworks (Next.js, Cloudflare Workers, Fastly) emit it automatically; absence on a managed platform usually means telemetry headers are stripped at the edge.
CPage Weight InventoryAction58 resources · 1.3 MB · 529 KB savings availableREVIEW
Page Weight Inventory
Action58 resources · 1.3 MB · 529 KB savings available
58 resources · 1.3 MB · 529 KB savings available
Warning::
Page weight 1.3 MB exceeds 1 MB target by 271 KB
Got: 1.3 MB Expected: ≤ 1 MB
Info::
~529 KB of savings available
Warning::
19 third-party resources (43% of weight)
Info::
2 resources over 200KB
58 resources · 1.3 MiB · 19 third-party 270.7 KiB over 1MB target
JavaScript 77% · 1002.2 KiB
Image 10% · 125.1 KiB
Font 8% · 101.1 KiB
Document 3% · 43.6 KiB
CSS 2% · 21.5 KiB
Other 0% · 1.1 KiB
~529.1 KiB of savings available
Remove unused JavaScript: 529.1 KiB
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 58 resources | 1.3 MiB | ||||||
BHTTP Cachingno-cache, must-revalidate, max-age=0REVIEW
HTTP Caching
no-cache, must-revalidate, max-age=0
no-cache, must-revalidate, max-age=0
Info::
Cache-Control header is set
Got: no-cache, must-revalidate, max-age=0
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control
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
Text Compression
All text resources are compressed
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
AImage Optimization2 images, 0 KB saveablePASS
Image Optimization
2 images, 0 KB saveable
2 images, 0 KB saveable
Warning::
https://ayvion.io/__l5e/assets-v1/f24d8b1c-2a08-48... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
2 images 0 KB
0 oversized -0 KB
1 legacy format
1 missing dimensions CLS risk
Set explicit width and height to prevent CLS.
Why this matters
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
Font Loading
6 fonts (101 KB)
6 fonts (101 KB)
Info::
6 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
6
101 KB total
Render-blocking
0
of 6
Dominant font-display
swap
Most common across fonts
Font loading timeline
Transfer FOIT (block) FOUT (swap)
NGSwv5HMAFg6IuGlBNMjxLs... woff2 swap
Size 44 KB
Load time 101 ms
Start 565 ms
Risk FOUT — text flashes from fallback to web font
UcC73FwrK3iLTeHuS_nVMrM... woff2 swap
Size 47 KB
Load time 99 ms
Start 565 ms
Risk FOUT — text flashes from fallback to web font
-F63fjptAgt5VM-kVkqdyU8... woff2 swap
Size 10 KB
Load time 77 ms
Start 565 ms
Risk FOUT — text flashes from fallback to web font
-F63fjptAgt5VM-kVkqdyU8... woff2 swap
Size 0 KB
Load time 0 ms
Start 1.1 s
Risk FOUT — text flashes from fallback to web font
UcC73FwrK3iLTeHuS_nVMrM... woff2 swap
Size 0 KB
Load time 0 ms
Start 1.1 s
Risk FOUT — text flashes from fallback to web font
NGSwv5HMAFg6IuGlBNMjxLs... woff2 swap
Size 0 KB
Load time 0 ms
Start 1.1 s
Risk FOUT — text flashes from fallback to web font
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
Resource Caching
All resources properly cached
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+Critical Rendering PathNo render-blocking resourcesPASS
Critical Rendering Path
No render-blocking resources
No render-blocking resources
Info::
No render-blocking resources detected
A+Resource Hints3 hints, 0 missing preconnectsPASS
Resource Hints
3 hints, 0 missing preconnects
3 hints, 0 missing preconnects
Info::
Page uses 3 resource hint(s)
Current Resource Hints
preconnect 2
preload 1
dns-prefetch—
prefetch—
3 resource hints configured
A+LCP Image PreloadLCP preload audit not availablePASS
LCP Image Preload
LCP preload audit not available
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A+Main HTML Cache-ControlMain HTML uses no-cache -- safe revalidate-on-request policyPASS
Main HTML Cache-Control
Main HTML uses no-cache -- safe revalidate-on-request policy
Main HTML uses no-cache -- safe revalidate-on-request policy
Info::
Main HTML uses no-cache -- safe revalidate-on-request policy
Got: no-cache, must-revalidate, max-age=0
AServer Response Intelligence2 server-response signal(s) detectedPASS
Server Response Intelligence
2 server-response signal(s) detected
2 server-response signal(s) detected
Warning::
Compressed response missing `Vary` header
The page is served with `Content-Encoding: gzip` but has no `Vary` header. Without `Vary: Accept-Encoding`, intermediary caches (corporate proxies, ISP caches) may serve the compressed variant to clients that didn't send the matching `Accept-Encoding` -- the client sees garbled bytes. Add `Vary: Accept-Encoding` whenever the response is conditionally compressed.
Info::
No `ETag` or `Last-Modified` -- conditional GET not supported
Without either header, browsers can't issue conditional GETs and refresh always re-downloads the full response body even when nothing changed. Add `ETag: "<hash>"` (or `Last-Modified: <date>`) on cacheable responses; the server returns 304 Not Modified when the client's cached copy is still valid, saving bandwidth.
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
Render-Blocking Resources
No render-blocking resources detected
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+Third-Party ResourcesNo third-party resources detectedPASS
Third-Party Resources
No third-party resources detected
No third-party resources detected
AJavaScript Blocking1 JS blocking issue(s) detectedPASS
JavaScript Blocking
1 JS blocking issue(s) detected
1 JS blocking issue(s) detected
Warning::
Total JS execution time is 4.7 s -- over the 3.5s budget
Total JavaScript execution (parse + compile + run) across all scripts exceeds 3.5 seconds. On low-end devices that becomes 7-15+ seconds and shows up directly in TBT and INP. Reduce by: tree-shaking unused dependencies, code-splitting (dynamic `import()`), removing or deferring third-party tracking, and replacing heavy frameworks where they're not needed.
A+CSS Performance DepthNo CSS performance depth issues detectedPASS
CSS Performance Depth
No CSS performance depth issues detected
No CSS performance depth issues detected
Info::
No CSS performance depth issues detected
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
Whether the site is served from green-energy infrastructure
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Asset CompressionNo text asset hosts to measureINFO
Asset Compression
No text asset hosts to measure
No text asset hosts to measure
Info::
No third-party or subdomain host served enough text assets to measure
Asset compression is measured per host, from one HEAD request against a sampled resource. Pages that serve all their JS and CSS from the document's own origin are covered by the document compression check instead.
Network Waterfall58 requests over 3507msINFO
Network Waterfall
58 requests over 3507ms
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
24% of JavaScript execution is third-party
First-party Third-party 1143ms · 159KB · $20/mo
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Google Tag Manager www.googletagmanager.com | Tag Manager | 467ms | 0 KB | 42% | $8/mo | Costly |
Facebook Pixel connect.facebook.net | Advertising | 349ms | 0 KB | 35% | $6/mo | Costly |
Facebook Pixel connect.facebook.net | Advertising | 246ms | 159 KB | — | $4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 81ms | 0 KB | — | $1/mo | Optional |
Google Tag Manager
Tag Manager
Execution 467ms
Transfer 0 KB
Unused 42%
Monthly Cost $8/mo
Facebook Pixel
Advertising
Execution 349ms
Transfer 0 KB
Unused 35%
Monthly Cost $6/mo
Facebook Pixel
Advertising
Execution 246ms
Transfer 159 KB
Monthly Cost $4/mo
Google Tag Manager
Tag Manager
Execution 81ms
Transfer 0 KB
Monthly Cost $1/mo
These scripts may cost more than they're worth
- Google Tag Manager adds 467ms and costs ~$8/month
- Facebook Pixel adds 349ms and costs ~$6/month
- Facebook Pixel adds 246ms and costs ~$4/month
Google Tag Manager takes 467ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
Why this matters
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Facebook Pixel takes 349ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
Why this matters
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Facebook Pixel takes 246ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
Why this matters
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Image Optimization2 images, 244 KB total, 119 KB wastedINFO
Image Optimization
2 images, 244 KB total, 119 KB wasted
Image Optimization Audit
Total Images
2
Total Size
244 KB
Oversized
1
Wasted
119 KB
1 missing dimensions 1 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.