Performance
· 26 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.
2.83 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
13.85 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.92 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.001
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
2.83 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.
13.85 s
Page Load Progression
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
DJS Execution CostAction3371ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://element.atl30309.com/bundles/a87b303cdb1da5ea6d71/9544.js | 1511ms | 911ms | 597ms | 3rd |
| Unattributable | 630ms | 23ms | 0ms | 3rd |
| https://element.atl30309.com/mobile_guide/ | 454ms | 7ms | 1ms | 3rd |
| https://element.atl30309.com/bundles/a87b303cdb1da5ea6d71/init.js | 400ms | 8ms | 379ms | 3rd |
| https://element.atl30309.com/bundles/a87b303cdb1da5ea6d71/bundle.js | 157ms | 120ms | 6ms | 3rd |
| https://element.atl30309.com/bundles/a87b303cdb1da5ea6d71/3264.js | 146ms | 3ms | 142ms | 3rd |
| https://element.atl30309.com/bundles/a87b303cdb1da5ea6d71/8996.js | 72ms | 3ms | 69ms | 3rd |
FJS BundlesAction12 scripts, 1.3 MB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://element.atl30309.com/bundles/a87b303cdb1da5ea6d71/9544.js | 858 KB | 728 KB (86%) | ✓ | 3rd |
| https://element.atl30309.com/bundles/a87b303cdb1da5ea6d71/init.js | 521 KB | 457 KB (88%) | ✓ | 3rd |
| https://element.atl30309.com/bundles/a87b303cdb1da5ea6d71/3264.js | 107 KB | 67 KB (67%) | ✓ | 3rd |
| https://element.atl30309.com/bundles/a87b303cdb1da5ea6d71/8996.js | 58 KB | 45 KB (78%) | ✓ | 3rd |
| https://element.atl30309.com/bundles/a87b303cdb1da5ea6d71/bundle.js | 10 KB | — | ✓ | 3rd |
| https://element.atl30309.com/bundles/a87b303cdb1da5ea6d71/8081.js | 6 KB | — | ✓ | 3rd |
| https://element.atl30309.com/bundles/a87b303cdb1da5ea6d71/styles.js | 1 KB | — | ✓ | 3rd |
| https://element.atl30309.com/bundles/a87b303cdb1da5ea6d71/9724.js | 5 KB | — | ✓ | 3rd |
| https://element.atl30309.com/bundles/a87b303cdb1da5ea6d71/1291.js | 6 KB | — | ✓ | 3rd |
| https://element.atl30309.com/bundles/a87b303cdb1da5ea6d71/3796.js | 98 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
FPage Weight InventoryAction36 resources · 2.0 MB · 1.3 MB savings availableFIX
~1.3 MiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 36 resources | 2.0 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CPage Weight BudgetAction2.0 MB transferred, 36 requestsREVIEW
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
BImage Optimization10 images, 0 KB saveableREVIEW
CCompression AlgorithmActionMain response served uncompressedREVIEW
BMain HTML Cache-ControlNo Cache-Control header on main HTML responseREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
A+Text CompressionAll text resources are compressedPASS
A+Font Loading2 fonts (47 KB)PASS
Web fonts
2
47 KB total
Render-blocking
0
of 2
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 Hints4 hints, 0 missing preconnectsPASS
Current Resource Hints
4 resource hints configured
A+HTTP/3 (QUIC)HTTP/3 advertised via Alt-SvcPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Server Response Intelligence1 server-response signal(s) detectedPASS
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
AJavaScript Blocking1 JS blocking issue(s) detectedPASS
ACSS Performance Depth1 CSS depth issue(s) detectedPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Hetzner Online GmbH
Network Waterfall36 requests over 1265msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
element.atl30309.com element.atl30309.com | Other | 1511ms | 858 KB | 86% | €16/mo | Costly |
Unattributable Unattributable | Other | 630ms | 0 KB | — | €7/mo | Costly |
element.atl30309.com element.atl30309.com | Other | 454ms | 1 KB | — | €5/mo | Costly |
element.atl30309.com element.atl30309.com | Other | 400ms | 521 KB | 88% | €4/mo | Costly |
element.atl30309.com element.atl30309.com | Other | 157ms | 10 KB | — | €2/mo | Optional |
element.atl30309.com element.atl30309.com | Other | 146ms | 107 KB | 67% | €2/mo | Optional |
element.atl30309.com element.atl30309.com | Other | 72ms | 58 KB | 78% | €1/mo | Optional |
These scripts may cost more than they're worth
- element.atl30309.com adds 1511ms and costs ~€16/month
- Unattributable adds 630ms and costs ~€7/month
- element.atl30309.com adds 454ms and costs ~€5/month
- element.atl30309.com adds 400ms and costs ~€4/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
element.atl30309.com takes 1511ms 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
86% of element.atl30309.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
Unattributable takes 630ms 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
element.atl30309.com takes 454ms 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
element.atl30309.com takes 400ms 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
88% of element.atl30309.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
67% of element.atl30309.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
78% of element.atl30309.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
Image Optimization6 images, 3 KB total, 0 KB wastedINFO
Image Optimization Audit
Total Images
6
Total Size
3 KB