Performance
· 21 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.
716 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.52 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.
0.003
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
2.07 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.
2.58 s
Page Load Progression
FPage Weight BudgetAction10.0 MB transferred, 62 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
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
CImage OptimizationAction30 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
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 Cost873ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 378ms | 13ms | 0ms | 1st |
| https://techex.tv/ | 300ms | 7ms | 3ms | 1st |
| https://techex.tv/_next/static/chunks/271-d1fcccae7ec1cbcb.js | 106ms | 92ms | 7ms | 1st |
| https://techex.tv/_next/static/chunks/f6b80d70-4d7a8a31cf1c271e.js | 90ms | 79ms | 9ms | 1st |
BCompression AlgorithmMain response uses gzip; brotli would be ~20% smallerREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
CPage Weight InventoryAction62 resources · 10.0 MB · 0 KB savings availableREVIEW
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 62 resources | 10.0 MiB | ||||||
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
BHTTP Cachingno-cacheREVIEW
no-cache
| Directive | Value | Meaning |
|---|---|---|
| no-cache | — | Cache but always revalidate first |
A+Third-Party ImpactNo third-party resourcesPASS
A+Text CompressionAll text resources are compressedPASS
A+Font Loading4 fonts (588 KB)PASS
Web fonts
4
588 KB total
Render-blocking
0
of 4
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
- 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 ~294 KB and ~588 ms
A+JS Bundles10 scripts, 0 KB unusedPASS
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://techex.tv/_next/static/chunks/webpack-4104cba3bd2e8fb1.js | 2 KB | — | ✓ | 1st |
| https://techex.tv/_next/static/chunks/f6b80d70-4d7a8a31cf1c271e.js | 53 KB | — | ✓ | 1st |
| https://techex.tv/_next/static/chunks/271-d1fcccae7ec1cbcb.js | 45 KB | — | ✓ | 1st |
| https://techex.tv/_next/static/chunks/main-app-2070c88d587bf534.js | 1 KB | — | ✓ | 1st |
| https://techex.tv/_next/static/chunks/665-31c6303c68f4eb6a.js | 4 KB | — | ✓ | 1st |
| https://techex.tv/_next/static/chunks/app/layout-4d48cd0f503703b2.js | 10 KB | — | ✓ | 1st |
| https://techex.tv/_next/static/chunks/app/not-found-39f2b9ad80471c1b.js | 2 KB | — | ✓ | 1st |
| https://techex.tv/_next/static/chunks/836-d2b9d2b7279a5a68.js | 11 KB | — | ✓ | 1st |
| https://techex.tv/_next/static/chunks/712-e6ce613489ce00aa.js | 11 KB | — | ✓ | 1st |
| https://techex.tv/_next/static/chunks/app/page-8ed54873f807fec2.js | 3 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+Main HTML Cache-ControlMain HTML uses no-cache -- safe revalidate-on-request policyPASS
A+Server Response Intelligence2 server-response signal(s) detectedPASS
Network Waterfall62 requests over 5206msINFO
Image Optimization31 images, 740 KB total, 33 KB wastedINFO
Image Optimization Audit
Total Images
31
Total Size
740 KB
Oversized
3
Wasted
33 KB