Performance
· 15 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.
2.10 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
4.26 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
50 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.004
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
2.57 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.
4.46 s
Page Load Progression
693 ms
1.4 s
2.1 s
2.8 s
3.5 s
4.2 s 4.8 s
5.5 sFPage Weight BudgetAction4.6 MB transferred, 216 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
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
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 ImpactAction100% third-party, 0 ms blockingFIX
DJS BundlesAction27 scripts, 436 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://ir.ebaystatic.com/rs/c/discoveryplatformweb/_B_1MEBK_.js | 267 KB | 185 KB (70%) | ✓ | 3rd |
| https://www.ebay.de/ifh/ifh-vendor0909758836facad3e08a.js | 279 KB | 164 KB (59%) | ✓ | 3rd |
| https://www.ebay.de/ifh/ifh0b444393f5b05226a26f.js | 77 KB | 34 KB (44%) | ✓ | 3rd |
| https://ir.ebaystatic.com/rs/c/globalheaderweb/index_lcNW.2510dd25.js | 78 KB | 32 KB (42%) | ✓ | 3rd |
| https://ir.ebaystatic.com/cr/v/c01/code.jquery.com_jquery-3.7.1.min.js | 31 KB | 21 KB (70%) | ✓ | 3rd |
| https://ir.ebaystatic.com/cr/v/c01/250701JZ48C6XWVCKCN2.js | 9 KB | — | ✓ | 3rd |
| https://ir.ebaystatic.com/cr/v/c01/89466f2c-a8ad-4fb1-83ee-683e13ae2786.min.js | 23 KB | — | ✓ | 3rd |
| https://ir.ebaystatic.com/rs/c/discoveryplatformweb/_Ceigqm1C.js | 2 KB | — | ✓ | 3rd |
| https://ir.ebaystatic.com/rs/c/globalheaderweb/runtime.582565b4.js | 3 KB | — | ✓ | 3rd |
| https://ir.ebaystatic.com/rs/c/discoveryplatformweb/_CvTRjXFo.js | 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
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 InventoryAction216 resources · 4.6 MB · 436 KB savings availableFIX
~435.7 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 216 resources | 4.6 MiB | ||||||
DHTTP CachingActionno-store (uncacheable)FIX
max-age=0, no-cache, no-store
| Directive | Value | Meaning |
|---|---|---|
| max-age | 0 | Cache for 0 seconds |
| no-cache | — | Cache but always revalidate first |
| no-store | — | Never cache this response |
BImage Optimization54 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 Cost884ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.ebay.de/ | 403ms | 159ms | 9ms | 3rd |
| Unattributable | 321ms | 19ms | 0ms | 3rd |
| https://www.ebay.de/ifh/ifh-vendor0909758836facad3e08a.js | 160ms | 138ms | 19ms | 3rd |
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 Loading2 fonts (51 KB)PASS
Web fonts
2
51 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 HintsNo optimization neededPASS
Network Waterfall216 requests over 5547msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.ebay.de www.ebay.de | Other | 403ms | 78 KB | — | €2/mo | Costly |
Unattributable Unattributable | Other | 321ms | 0 KB | — | €2/mo | Costly |
www.ebay.de www.ebay.de | Other | 160ms | 279 KB | 59% | €1/mo | Optional |
These scripts may cost more than they're worth
- www.ebay.de adds 403ms and costs ~€2/month
- Unattributable adds 321ms and costs ~€2/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
www.ebay.de takes 403ms 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
Unattributable takes 321ms 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
59% of www.ebay.de'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