Performance
· 15 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.
351 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.38 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
167 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.
1.33 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.
3.27 s
Page Load Progression
FPage Weight BudgetAction2.8 MB transferred, 104 requestsFIX
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.
Source: web.dev
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
Subset fonts to include only used characters, or switch to system font stacks.
Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).
Source: web.dev font loading
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
DPage Weight InventoryAction104 resources · 2.8 MB · 240 KB savings availableFIX
~239.8 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 104 resources | 2.8 MiB | ||||||
DHTTP CachingActionno-store (uncacheable)FIX
private, no-store, max-age=0
| Directive | Value | Meaning |
|---|---|---|
| private | — | Only browser cache, not CDN/proxy |
| no-store | — | Never cache this response |
| max-age | 0 | Cache for 0 seconds |
BThird-Party Impact53% third-party, 0 ms blockingREVIEW
CJS Execution CostAction1425ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://aeon.co/_next/static/chunks/0_v8f1g7.92mg.js | 737ms | 657ms | 21ms | 1st |
| Unattributable | 213ms | 31ms | 0ms | 3rd |
| https://aeon.co/ | 175ms | 9ms | 6ms | 1st |
| https://analytics.aeon.co/gtag/js?id=G-R4TJTKRVYG&cx=c>m=4e64k0&sign=cd22cc3cbf1011b08dc6daeaaac816a1cab831a0bd5d73f076d11ce2ca925847_20260422 | 158ms | 128ms | 15ms | 3rd |
| https://analytics.aeon.co/gtm.js?id=GTM-MHVZTPR | 87ms | 76ms | 10ms | 3rd |
| https://aeon.co/_next/static/chunks/133qnazah~2eg.js | 54ms | 31ms | 5ms | 1st |
CJS BundlesAction38 scripts, 240 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://aeon.co/_next/static/chunks/0_v8f1g7.92mg.js | 170 KB | 68 KB (40%) | ✓ | 1st |
| https://analytics.aeon.co/gtag/js?id=G-R4TJTKRVYG&cx=c>m=4e64k0&sign=cd22cc3cbf1011b08dc6daeaaac816a1cab831a0bd5d73f076d11ce2ca925847_20260422 | 172 KB | 67 KB (39%) | ✓ | 3rd |
| https://analytics.aeon.co/gtm.js?id=GTM-MHVZTPR | 130 KB | 60 KB (46%) | ✓ | 3rd |
| https://aeon.co/_next/static/chunks/0tei0hr6ltgqv.js | 22 KB | 22 KB (99%) | ✓ | 1st |
| https://aeon.co/_next/static/chunks/10_t3scxt3gpu.js | 25 KB | 22 KB (88%) | ✓ | 1st |
| https://aeon.co/_next/static/chunks/18amkp4zzqzem.js | 6 KB | — | ✓ | 1st |
| blob:https://aeon.co/56394e30-cf46-445e-aa7c-11f94b1378f6 | -0 KB | — | ✓ | 3rd |
| https://aeon.co/_next/static/chunks/0.7d-eoxf7kmt.js | 8 KB | — | ✓ | 1st |
| https://aeon.co/_next/static/chunks/0r4siloou0ft~.js | 9 KB | — | ✓ | 1st |
| https://aeon.co/_next/static/chunks/024nugfkgygna.js | 15 KB | — | ✓ | 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
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Text CompressionAll text resources are compressedPASS
A+Image Optimization21 images, 0 KB saveablePASS
A+Font Loading14 fonts (602 KB)PASS
Web fonts
14
602 KB total
Render-blocking
0
of 14
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
Network Waterfall104 requests over 1547msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 213ms | 0 KB | — | $3/mo | Costly |
analytics.aeon.co analytics.aeon.co | Other | 158ms | 172 KB | 39% | $2/mo | Optional |
analytics.aeon.co analytics.aeon.co | Other | 87ms | 130 KB | 46% | $1/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 213ms and costs ~$3/month
Unattributable takes 213ms 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