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.
2.62 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
4.39 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
56 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.
4.64 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.
4.46 s
Page Load Progression
CJS Execution CostAction1825ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.navigatehimalaya.com/ | 1038ms | 14ms | 20ms | 1st |
| Unattributable | 318ms | 8ms | 0ms | 1st |
| https://www.navigatehimalaya.com/_next/static/chunks/255-ce8c7c75002f810b.js | 266ms | 230ms | 12ms | 1st |
| https://www.navigatehimalaya.com/_next/static/chunks/4bd1b696-c023c6e3521b1417.js | 202ms | 168ms | 11ms | 1st |
BDocument CompressionDocument response uses gzip; brotli would be ~20% smallerREVIEW
BMain HTML Cache-ControlCache-Control present but without max-ageREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
BHTTP Cachings-maxage=300, stale-while-revalidate=31535700REVIEW
s-maxage=300, stale-while-revalidate=31535700
| Directive | Value | Meaning |
|---|---|---|
| s-maxage | 300 | CDN caches for 5 minutes |
| stale-while-revalidate | 31535700 | Serve stale for 52 weeks while fetching fresh |
APage Weight Budget896 KB transferred, 31 requestsPASS
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
A+Third-Party Impact4% third-party, 0 ms blockingPASS
A+Text CompressionAll text resources are compressedPASS
A+Image Optimization8 images, 0 KB saveablePASS
A+Font Loading3 fonts (270 KB)PASS
Web fonts
3
270 KB total
Render-blocking
0
of 3
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
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)
Fixing the unchecked items could save ~123 KB and ~246 ms
A+JS Bundles13 scripts, 0 KB unusedPASS
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.navigatehimalaya.com/_next/static/chunks/webpack-a4b4b15bcf81ddf1.js | 2 KB | — | ✓ | 1st |
| https://www.navigatehimalaya.com/_next/static/chunks/4bd1b696-c023c6e3521b1417.js | 53 KB | — | ✓ | 1st |
| https://www.navigatehimalaya.com/_next/static/chunks/255-ce8c7c75002f810b.js | 46 KB | — | ✓ | 1st |
| https://www.navigatehimalaya.com/_next/static/chunks/main-app-5bbd0ed9a7774a3a.js | 0 KB | — | ✓ | 1st |
| https://www.navigatehimalaya.com/_next/static/chunks/619-ba102abea3e3d0e4.js | 3 KB | — | ✓ | 1st |
| https://www.navigatehimalaya.com/_next/static/chunks/356-47603a930f4ceff0.js | 5 KB | — | ✓ | 1st |
| https://www.navigatehimalaya.com/_next/static/chunks/346-428af3fec72a2a31.js | 4 KB | — | ✓ | 1st |
| https://www.navigatehimalaya.com/_next/static/chunks/app/layout-2b550ff6afabe7a8.js | 8 KB | — | ✓ | 1st |
| https://www.navigatehimalaya.com/_next/static/chunks/app/%5B...slug%5D/page-c7d51bff4ee2feb0.js | 1 KB | — | ✓ | 1st |
| https://www.navigatehimalaya.com/_next/static/chunks/547-c4f30b4b849a6bb1.js | 6 KB | — | ✓ | 1st |
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+LCP Image PreloadLCP preload audit not availablePASS
A+Server Response Intelligence2 server-response signal(s) detectedPASS
A+Page Weight Inventory31 resources · 896 KB · 0 KB savings availablePASS
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 31 resources | 896.3 KiB | ||||||
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
A+JavaScript BlockingNo render-blocking JS or document.write usage detectedPASS
A+CSS Performance DepthNo CSS performance depth issues detectedPASS
Asset CompressionNo text asset hosts to measureINFO
Network Waterfall31 requests over 2399msINFO
Image Optimization1 images, 0 KB total, 0 KB wastedINFO
Image Optimization Audit
Total Images
1
Total Size
0 KB