Performance
· 26 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.
1.98 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.43 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
966 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.
2.43 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.
7.19 s
Page Load Progression
DJS Execution CostAction3339ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://chatgpt.com/unauth-mweb/scripts/declarative-partial-updates-cc0dc41806f1.js | 960ms | 825ms | 13ms | 1st |
| Unattributable | 872ms | 265ms | 0ms | 1st |
| https://chatgpt.com/ | 538ms | 145ms | 34ms | 1st |
| https://chatgpt.com/unauth-mweb/assets/a-CcmksUav.js | 472ms | 303ms | 0ms | 1st |
| https://chatgpt.com/unauth-mweb/assets/octane-shell-shared-oe7hbeHZ.js | 223ms | 160ms | 0ms | 1st |
| https://chatgpt.com/unauth-mweb/assets/a-DZliMWKc.js | 197ms | 100ms | 0ms | 1st |
| https://chatgpt.com/unauth-mweb/assets/a-DKb2AUrS.js | 77ms | 30ms | 0ms | 1st |
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BPage Weight Budget1.1 MB transferred, 189 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
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
CJS BundlesAction174 scripts, 171 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://chatgpt.com/unauth-mweb/assets/a-CcmksUav.js | 123 KB | 47 KB (38%) | ✓ | 1st |
| https://chatgpt.com/unauth-mweb/assets/octane-shell-shared-oe7hbeHZ.js | 66 KB | 35 KB (53%) | ✓ | 1st |
| https://chatgpt.com/unauth-mweb/assets/application-frame-runtime-modules-C6KzTF3l.js | 88 KB | 32 KB (37%) | ✓ | 1st |
| https://chatgpt.com/unauth-mweb/assets/a-BhRec1Zk.js | 37 KB | 30 KB (83%) | ✓ | 1st |
| https://chatgpt.com/unauth-mweb/assets/conversation-shared-cRuv_Xln.js | 31 KB | 28 KB (92%) | ✓ | 1st |
| https://chatgpt.com/unauth-mweb/assets/a-4EPbdvKX.js | 0 KB | — | ✓ | 1st |
| https://chatgpt.com/unauth-mweb/assets/a-Bm0HtvzR.js | 1 KB | — | ✓ | 1st |
| https://chatgpt.com/unauth-mweb/assets/a-DmKTGg3w.js | 2 KB | — | ✓ | 1st |
| https://chatgpt.com/unauth-mweb/scripts/legacy-hash-router-c9167e14712f.js | 1 KB | — | ✓ | 1st |
| https://chatgpt.com/unauth-mweb/assets/octane-signals-engine-DDxy3SYp.js | 24 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
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
BMain HTML Cache-ControlNo Cache-Control header on main HTML responseREVIEW
A+Third-Party ImpactNo third-party resourcesPASS
A+Text CompressionAll text resources are compressedPASS
A+Image OptimizationNo images on this pagePASS
A+Font LoadingNo web fonts (system fonts)PASS
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
A+Document CompressionDocument response uses brotliPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Server-Timing Observability1 Server-Timing entries advertisedPASS
AServer Response Intelligence2 server-response signal(s) detectedPASS
APage Weight Inventory189 resources · 1.1 MB · 171 KB savings availablePASS
~171.4 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 189 resources | 1.1 MiB | ||||||
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
AJavaScript Blocking1 JS blocking issue(s) detectedPASS
A+CSS Performance DepthNo CSS performance depth issues 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 Waterfall189 requests over 2186msINFO
Real-User Performance (CrUX)Field metrics from the Chrome User Experience ReportINFO
Chrome User Experience (CrUX)
Real-user metrics from the Chrome UX Report (2026-09-18 — 2026-10-15)
LCP (p75)
3276 ms
67% good
INP (p75)
665 ms
41% good
CLS (p75)
0.120
72% good
FCP (p75)
2307 ms
TTFB (p75)
1429 ms