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.
5.35 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
6.69 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
384 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.
5.35 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.
10.39 s
Page Load Progression
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
DJS BundlesAction28 scripts, 404 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 362 KB | 242 KB (67%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-8TB61LMJKC&cx=c&_slc=1 | 165 KB | 69 KB (42%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-L27DQL6RCD | 158 KB | 63 KB (40%) | ✓ | 3rd |
| https://serv90.com/ab47fe78.js | 37 KB | 30 KB (80%) | ✓ | 3rd |
| https://static.4shared.com/js/plugins/favicon.4min.js?ver=589791203 | 1 KB | — | ✓ | 3rd |
| https://static.4shared.com/js/bottomSheets/bottomsheets.4min.js?ver=314671084 | 0 KB | — | ✓ | 3rd |
| https://static.4shared.com/js/plugins/bootstrap/js/bootstrap.min.js?ver=-2016413654 | 10 KB | — | ✓ | 3rd |
| https://static.4shared.com/js/jquery/jquery-1.9.1.4min.js?ver=1965676176 | 36 KB | — | ✓ | 3rd |
| https://static.4shared.com/js/plugins/jquery.localStorage.4min.js?ver=-1535072197 | 1 KB | — | ✓ | 3rd |
| https://static.4shared.com/js/plugins/jquery.tipTip.4min.js?ver=424755820 | 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
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
BImage Optimization23 images, 0 KB saveableREVIEW
CJS Execution CostAction1435ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 359ms | 8ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-8TB61LMJKC&cx=c&_slc=1 | 298ms | 233ms | 53ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-L27DQL6RCD | 261ms | 207ms | 52ms | 3rd |
| https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 164ms | 88ms | 76ms | 3rd |
| https://static.4shared.com/js/jquery/jquery-1.9.1.4min.js?ver=1965676176 | 146ms | 68ms | 13ms | 3rd |
| https://www.4shared.com/ | 126ms | 22ms | 6ms | 3rd |
| https://ssl.google-analytics.com/analytics.js | 81ms | 53ms | 16ms | 3rd |
BPage Weight Inventory69 resources · 983 KB · 404 KB savings availableREVIEW
~404.2 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 69 resources | 983.5 KiB | ||||||
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
APage Weight Budget983 KB transferred, 69 requestsPASS
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.
Source: web.dev
A+Text CompressionAll text resources are compressedPASS
A+Font Loading1 fonts (37 KB)PASS
Web fonts
1
37 KB total
Render-blocking
0
of 1
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 Hints2 hints, 0 missing preconnectsPASS
Current Resource Hints
2 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
AHTTP Cachingmax-age=31536000 (52 weeks)PASS
max-age=31536000, public
| Directive | Value | Meaning |
|---|---|---|
| max-age | 31536000 | Cache for 52 weeks |
| public | — | Any cache may store this response |
Network Waterfall69 requests over 2194msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 359ms | 0 KB | — | $5/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 298ms | 165 KB | 42% | $4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 261ms | 158 KB | 40% | $3/mo | Costly |
www.gstatic.com www.gstatic.com | Other | 164ms | 362 KB | 67% | $2/mo | Optional |
static.4shared.com static.4shared.com | Other | 146ms | 36 KB | — | $2/mo | Optional |
www.4shared.com www.4shared.com | Other | 126ms | 43 KB | — | $2/mo | Optional |
Google Analytics ssl.google-analytics.com | Analytics | 81ms | 21 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 359ms and costs ~$5/month
- Google Tag Manager adds 298ms and costs ~$4/month
- Google Tag Manager adds 261ms and costs ~$3/month
100% 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 359ms 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
Google Tag Manager takes 298ms 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
Google Tag Manager takes 261ms 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
67% of www.gstatic.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev