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.
1.73 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.49 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
22 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.
1.73 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.
3.02 s
Page Load Progression
DPage Weight BudgetAction2.2 MB transferred, 171 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
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
DJS Execution CostAction2371ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://cedears.com/ | 922ms | 85ms | 15ms | 1st |
| Unattributable | 634ms | 26ms | 0ms | 1st |
| https://cedears.com/_next/static/chunks/framework-BQUlGUOV.js | 601ms | 532ms | 0ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-KKN1LP74JX | 124ms | 107ms | 16ms | 3rd |
| https://cedears.com/_next/static/chunks/link-D71rJ9q-.js | 91ms | 86ms | 0ms | 1st |
BJS Bundles42 scripts, 133 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=G-KKN1LP74JX | 174 KB | 74 KB (43%) | ✓ | 3rd |
| https://cedears.com/_next/static/chunks/index-Cz67PV79.js | 54 KB | 32 KB (61%) | ✓ | 1st |
| https://cedears.com/_next/static/chunks/cedears-list-CRmlRX77.js | 41 KB | 27 KB (66%) | ✓ | 1st |
| https://cedears.com/_next/static/chunks/app-rsc-render-mode-BuCGntbi.js | 1 KB | — | ✓ | 1st |
| https://analytics.ahrefs.com/analytics.js | 3 KB | — | ✓ | 3rd |
| https://cedears.com/_next/static/chunks/app-elements-2Q9aeF2g.js | 5 KB | — | ✓ | 1st |
| https://cedears.com/_next/static/chunks/hash-B9TVtkv9.js | 1 KB | — | ✓ | 1st |
| https://cedears.com/_next/static/chunks/framework-BQUlGUOV.js | 60 KB | — | ✓ | 1st |
| https://cedears.com/_next/static/chunks/navigation-errors-WgJ8EwkD.js | 2 KB | — | ✓ | 1st |
| https://cedears.com/_next/static/chunks/app-rsc-cache-busting-BvKV3qlF.js | 2 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
CPage Weight InventoryAction171 resources · 2.2 MB · 133 KB savings availableREVIEW
~132.9 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 171 resources | 2.2 MiB | ||||||
BHTTP Cachingpublic, max-age=0, must-revalidateREVIEW
public, max-age=0, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| public | — | Any cache may store this response |
| max-age | 0 | Cache for 0 seconds |
| must-revalidate | — | Must recheck with server after expiry |
A+Third-Party Impact8% third-party, 0 ms blockingPASS
A+Text CompressionAll text resources are compressedPASS
A+Image Optimization89 images, 0 KB saveablePASS
A+Font Loading1 fonts (29 KB)PASS
Web fonts
1
29 KB total
Render-blocking
0
of 1
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+HTTP/3 (QUIC)HTTP/3 advertised via Alt-SvcPASS
A+Document CompressionDocument response uses brotliPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Main HTML Cache-ControlMain HTML max-age=0 (≤ 5min) is appropriatePASS
A+Server-Timing Observability3 Server-Timing entries advertisedPASS
A+Server 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
Asset CompressionNo text asset hosts to measureINFO
Network Waterfall171 requests over 4578msINFO
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 | 124ms | 174 KB | 43% | AR$429/mo | Costly |
These scripts may cost more than they're worth
- Google Tag Manager adds 124ms and costs ~AR$429/month
Google Tag Manager takes 124ms 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
Image Optimization200 images, 539 KB total, 537 KB wastedINFO
Image Optimization Audit
Total Images
200
Total Size
539 KB
Oversized
34
Wasted
537 KB