Performance
· 17 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.
1.62 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
8.49 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
176 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.
2.94 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.
8.49 s
Page Load Progression
375 ms
750 ms
1.1 s 1.5 s 1.9 s 2.2 s 2.6 s 3.0 sFPage Weight BudgetAction10.5 MB transferred, 153 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
Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.
CSS bundle is large — purge unused styles (PurgeCSS, Tailwind JIT) to reduce CSS payload.
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
DThird-Party ImpactAction99% third-party, 0 ms blockingFIX
DJS Execution CostAction2297ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 951ms | 37ms | 0ms | 3rd |
| https://mega.io/ | 401ms | 6ms | 1ms | 3rd |
| https://mega.io/wp-content/themes/megapages/blocks/animated-hero/view.js?ver=1739304548 | 337ms | 23ms | 1ms | 3rd |
| https://mega.io/wp-content/themes/megapages/assets/js/megapages.js?ver=1772447658 | 286ms | 177ms | 1ms | 3rd |
| https://mega.io/wp-content/themes/megapages/megalib/js/megalib.js?ver=1774412887 | 252ms | 57ms | 11ms | 3rd |
| https://mega.nz/secureboot.js?r=1776297148 | 70ms | 53ms | 16ms | 1st |
DJS BundlesAction17 scripts, 152 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://mega.io/wp-includes/js/jquery/jquery.min.js?ver=3.7.1 | 87 KB | 62 KB (73%) | ✓ | 3rd |
| https://mega.io/wp-content/themes/megapages/megalib/js/megalib-components.js?ver=1771295007 | 60 KB | 46 KB (78%) | ✗ | 3rd |
| https://mega.io/wp-content/themes/megapages/megalib/js/megalib.js?ver=1774412887 | 114 KB | 44 KB (38%) | ✗ | 3rd |
| https://mega.io/wp-content/themes/megapages/blocks/single-slice/view.js?ver=1693887273 | 1 KB | — | ✓ | 3rd |
| https://mega.io/wp-content/themes/megapages/blocks/feature-alternating/view.js?ver=1739304548 | 2 KB | — | ✓ | 3rd |
| blob:https://mega.nz/c394ce86-dd69-4aed-8d94-1d40f2548466 | -0 KB | — | ✓ | 3rd |
| blob:https://mega.nz/be753b61-66fb-40ff-b7e3-8e9bfdf3f20a | 0 KB | — | ✗ | 3rd |
| https://mega.io/wp-content/themes/megapages/blocks/animated-hero/view.js?ver=1739304548 | 9 KB | — | ✗ | 3rd |
| https://mega.nz/secureboot.js?r=1776297148 | 41 KB | — | ✗ | 1st |
| https://mega.io/wp-content/themes/megapages/blocks/ft-alternating-block-a/view.js?ver=1693887273 | 1 KB | — | ✓ | 3rd |
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
DPage Weight InventoryAction153 resources · 10.5 MB · 152 KB savings availableFIX
~152.3 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 153 resources | 10.5 MiB | ||||||
DHTTP CachingActionno-store (uncacheable)FIX
no-cache, no-store, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| no-cache | — | Cache but always revalidate first |
| no-store | — | Never cache this response |
| must-revalidate | — | Must recheck with server after expiry |
BImage Optimization88 images, 0 KB saveableREVIEW
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Text CompressionAll text resources are compressedPASS
A+Font Loading5 fonts (404 KB)PASS
Web fonts
5
404 KB total
Render-blocking
0
of 5
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 ~104 KB and ~208 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall153 requests over 1285msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 951ms | 0 KB | — | NZ$14/mo | Costly |
mega.io mega.io | Other | 401ms | 18 KB | — | NZ$6/mo | Costly |
mega.io mega.io | Other | 337ms | 9 KB | — | NZ$5/mo | Costly |
mega.io mega.io | Other | 286ms | 16 KB | — | NZ$4/mo | Costly |
mega.io mega.io | Other | 252ms | 114 KB | 38% | NZ$4/mo | Costly |
These scripts may cost more than they're worth
- Unattributable adds 951ms and costs ~NZ$14/month
- mega.io adds 401ms and costs ~NZ$6/month
- mega.io adds 337ms and costs ~NZ$5/month
- mega.io adds 286ms and costs ~NZ$4/month
- mega.io adds 252ms and costs ~NZ$4/month
97% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.
When third-party JS execution time exceeds your own, performance gains from frontend work are capped by code you don't own.
Learn more ▾ ▴
Every millisecond of third-party JS competes with your own for main-thread time. If their share is bigger than yours, optimization on your code base barely moves the needle. Audit, defer, or remove third-parties before further frontend optimization. Use Lighthouse's third-party audit to identify the worst offenders.
Source: web.dev
Unattributable takes 951ms 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
mega.io takes 401ms 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
mega.io takes 337ms 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
mega.io takes 286ms 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
mega.io takes 252ms 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