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.
983 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.33 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
0 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.
1.49 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.
2.33 s
Page Load Progression
DThird-Party ImpactAction79% third-party, 0 ms blockingFIX
FJS BundlesAction9 scripts, 318 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://legalizarte.app/static/js/main.d2781266.js | 288 KB | 181 KB (63%) | ✓ | 1st |
| https://ap.emergent.sh/static/array.js | 120 KB | 63 KB (52%) | ✓ | 3rd |
| https://ap.emergent.sh/static/1.449.0/surveys.js | 48 KB | 38 KB (79%) | ✓ | 3rd |
| https://ap.emergent.sh/static/1.449.0/posthog-recorder.js | 71 KB | 37 KB (52%) | ✓ | 3rd |
| https://assets.emergent.sh/scripts/emergent-main.js | 6 KB | — | ✗ | 3rd |
| https://ap.emergent.sh/array/phc_DbsPb39SRc8z3EiQ6Dhj6ikv4H4rTKcht9d4sZSesceP/config.js | 1 KB | — | ✓ | 3rd |
| https://ap.emergent.sh/static/1.449.0/dead-clicks-autocapture.js | 9 KB | — | ✓ | 3rd |
| https://ap.emergent.sh/static/1.449.0/web-vitals-with-attribution.js | 7 KB | — | ✓ | 3rd |
| blob:https://legalizarte.app/51800adb-a3d2-4655-a50c-453e69f08fc4 | -0 KB | — | ✓ | 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
DPage Weight InventoryAction24 resources · 1.6 MB · 318 KB savings availableFIX
~317.6 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 24 resources | 1.6 MiB | ||||||
DHTTP CachingActionno-store (uncacheable)FIX
no-cache, no-store, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| no-cache | — | Cache but always revalidate first |
| no-store | — | Never cache this response |
| must-revalidate | — | Must recheck with server after expiry |
CPage Weight BudgetAction1.6 MB transferred, 24 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
BImage Optimization4 images, 0 KB saveableREVIEW
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
BJS Execution Cost502ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://ap.emergent.sh/static/array.js | 129ms | 120ms | 8ms | 3rd |
| https://legalizarte.app/static/js/main.d2781266.js | 111ms | 54ms | 22ms | 1st |
| https://legalizarte.app/ | 109ms | 3ms | 1ms | 1st |
| https://ap.emergent.sh/static/1.449.0/posthog-recorder.js | 82ms | 33ms | 4ms | 3rd |
| Unattributable | 71ms | 22ms | 0ms | 1st |
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
BDocument CompressionDocument response uses gzip; brotli would be ~20% smallerREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
A+Text CompressionAll text resources are compressedPASS
A+Font Loading3 fonts (84 KB)PASS
Web fonts
3
84 KB total
Render-blocking
0
of 3
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
AAsset Compression1 of 1 asset host still on gzipPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Main HTML Cache-ControlMain HTML uses no-store -- correct for sensitive/dynamic contentPASS
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 Waterfall24 requests over 2269msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
ap.emergent.sh ap.emergent.sh | Other | 129ms | 120 KB | 52% | $2/mo | Optional |
ap.emergent.sh ap.emergent.sh | Other | 82ms | 71 KB | 52% | $1/mo | Optional |
42% of JavaScript execution time comes from third-party scripts.
Third-party scripts (analytics, ads, social, A/B testing) often dominate execution time — every one is a perf-and-privacy tax.
Learn more ▾ ▴
Each third-party script is a black box: you don't control when it loads, what it executes, or how much it grows. They often account for a major share of total blocking time on average sites (HTTP Archive's Web Almanac documents the trend). Audit which ones you actually need, defer the rest, and use facade patterns (lite-youtube, lite-vimeo) for embedded media.
Source: web.dev / HTTP Archive Web Almanac
52% of ap.emergent.sh'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
52% of ap.emergent.sh'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 Optimization3 images, 943 KB total, 898 KB wastedINFO
Image Optimization Audit
Total Images
3
Total Size
943 KB
Oversized
3
Wasted
898 KB