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.
787 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.46 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
4 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.007
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.34 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.
2.51 s
Page Load Progression
FPage Weight BudgetAction4.8 MB transferred, 133 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
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
BImage Optimization12 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 Cost725ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 477ms | 65ms | 0ms | 3rd |
| https://www.itechnologies.com.au/ | 148ms | 4ms | 0ms | 1st |
| https://www.itechnologies.com.au/_next/static/chunks/framework-64ad27b21261a9ce.js | 100ms | 90ms | 2ms | 1st |
CJS BundlesAction59 scripts, 279 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.itechnologies.com.au/_next/static/chunks/750-34c972a10f5bae7a.js | 16 KB | 93 KB (99%) | ✓ | 1st |
| https://www.itechnologies.com.au/_next/static/chunks/750-34c972a10f5bae7a.js | 0 KB | 93 KB (99%) | ✓ | 1st |
| https://www.itechnologies.com.au/_next/static/chunks/pages/_app-6c7e9be9b3ffbdf8.js | 139 KB | 92 KB (66%) | ✓ | 1st |
| https://www.itechnologies.com.au/_next/static/chunks/webpack-16b2a5204f31b481.js | 2 KB | — | ✓ | 1st |
| https://www.itechnologies.com.au/_next/static/chunks/framework-64ad27b21261a9ce.js | 42 KB | — | ✓ | 1st |
| https://www.itechnologies.com.au/_next/static/chunks/main-f4701d23e362eb77.js | 32 KB | — | ✓ | 1st |
| https://www.itechnologies.com.au/_next/static/chunks/pages/index-ed7b07fe9d72ad95.js | 2 KB | — | ✓ | 1st |
| https://www.itechnologies.com.au/_next/static/Qx6373HfMX7-LtzWOJT-r/_buildManifest.js | 1 KB | — | ✓ | 1st |
| https://www.itechnologies.com.au/_next/static/Qx6373HfMX7-LtzWOJT-r/_ssgManifest.js | 1 KB | — | ✓ | 1st |
| https://www.itechnologies.com.au/_next/static/chunks/711.aa730196f53cd428.js | 5 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
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
CCompression AlgorithmActionMain response served uncompressedREVIEW
CMain HTML Cache-ControlActionMain HTML max-age=86400 (~1440min) is aggressiveREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
CPage Weight InventoryAction133 resources · 4.8 MB · 279 KB savings availableREVIEW
~278.6 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 133 resources | 4.8 MiB | ||||||
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Third-Party Impact2% third-party, 0 ms blockingPASS
A+Text CompressionAll text resources are compressedPASS
A+Font Loading4 fonts (122 KB)PASS
Web fonts
4
122 KB total
Render-blocking
0
of 4
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
A+LCP Image PreloadLCP preload audit not availablePASS
A+Server Response Intelligence2 server-response signal(s) detectedPASS
A+HTTP Cachingmax-age=86400 (1 day)PASS
public, max-age=86400, s-maxage=2592000
| Directive | Value | Meaning |
|---|---|---|
| public | — | Any cache may store this response |
| max-age | 86400 | Cache for 1 day |
| s-maxage | 2592000 | CDN caches for 4 weeks |
Network Waterfall133 requests over 1318msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 477ms | 0 KB | — | A$8/mo | Costly |
These scripts may cost more than they're worth
- Unattributable adds 477ms and costs ~A$8/month
66% 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
Unattributable takes 477ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Real-User Performance (CrUX)Field metrics from the Chrome User Experience ReportINFO
Chrome User Experience (CrUX)
Real-user metrics from the Chrome UX Report (2026-04-11 — 2026-05-08)
LCP (p75)
1618 ms
85% good
INP (p75)
100 ms
98% good
CLS (p75)
0.010
99% good
FCP (p75)
1125 ms
TTFB (p75)
643 ms
Image Optimization81 images, 3944 KB total, 3903 KB wastedINFO
Image Optimization Audit
Total Images
81
Total Size
3944 KB
Oversized
21
Wasted
3903 KB