Performance
· 22 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.
563 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
820 ms
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.
0.014
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
679 ms
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
822 ms
Page Load Progression
DPage Weight BudgetAction2.5 MB transferred, 42 requestsFIX
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
BJS Execution Cost535ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.navigatehimalaya.com/ | 322ms | 3ms | 7ms | 1st |
| Unattributable | 81ms | 4ms | 0ms | 1st |
| https://www.navigatehimalaya.com/_next/static/chunks/255-ce8c7c75002f810b.js | 81ms | 72ms | 4ms | 1st |
| https://www.navigatehimalaya.com/_next/static/chunks/4bd1b696-c023c6e3521b1417.js | 50ms | 42ms | 3ms | 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
CPage Weight InventoryAction42 resources · 2.5 MB · 0 KB savings availableREVIEW
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 42 resources | 2.5 MiB | ||||||
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 |
A+Third-Party ImpactNo third-party resourcesPASS
A+Text CompressionAll text resources are compressedPASS
A+Image Optimization5 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 Bundles19 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
Asset CompressionNo text asset hosts to measureINFO
Network Waterfall42 requests over 1394msINFO
Image Optimization1 images, 0 KB total, 0 KB wastedINFO
Image Optimization Audit
Total Images
1
Total Size
0 KB