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.
6.05 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
15.15 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.41 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.017
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
7.16 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.
23.94 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 BudgetAction5.3 MB transferred, 312 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
FJS Execution CostAction7130ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.ebay.com/ | 2107ms | 804ms | 50ms | 3rd |
| Unattributable | 1778ms | 109ms | 0ms | 3rd |
| https://www.ebay.com/ifh/ifh-vendor0909758836facad3e08a.js | 671ms | 574ms | 79ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-1070599711 | 437ms | 393ms | 41ms | 3rd |
| https://ir.ebaystatic.com/cr/v/c01/globalheader_widget_platform__v2-8cc77abd.js | 363ms | 169ms | 73ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-1005566788&cx=c>m=4e64f0 | 244ms | 210ms | 32ms | 3rd |
| https://connect.facebook.net/signals/config/775033202546050?v=2.9.298&r=stable&domain=www.ebay.com&hme=c048e760b3fdc0fbdc117d7607b2c36e13eff2660c515ac72e86dac5ba060bb9&ex_m=104%2C205%2C154%2C22%2C72%2C73%2C145%2C68%2C67%2C11%2C162%2C90%2C16%2C138%2C127%2C39%2C75%2C78%2C134%2C159%2C164%2C8%2C4%2C5%2C7%2C6%2C3%2C91%2C101%2C165%2C170%2C219%2C62%2C186%2C187%2C55%2C277%2C30%2C74%2C231%2C230%2C229%2C23%2C33%2C103%2C61%2C10%2C63%2C97%2C98%2C99%2C105%2C130%2C31%2C29%2C132%2C133%2C129%2C128%2C155%2C76%2C158%2C156%2C157%2C50%2C60%2C123%2C15%2C161%2C45%2C264%2C265%2C263%2C26%2C27%2C28%2C48%2C146%2C77%2C112%2C18%2C20%2C44%2C40%2C42%2C41%2C83%2C92%2C96%2C110%2C144%2C147%2C46%2C111%2C24%2C21%2C119%2C69%2C36%2C149%2C148%2C150%2C141%2C139%2C25%2C35%2C59%2C109%2C160%2C70%2C17%2C152%2C114%2C81%2C66%2C19%2C85%2C86%2C116%2C84%2C136%2C135%2C34%2C279%2C294%2C212%2C201%2C202%2C200%2C297%2C289%2C52%2C213%2C107%2C131%2C80%2C121%2C54%2C47%2C49%2C113%2C120%2C126%2C58%2C64%2C151%2C115%2C37%2C32%2C53%2C56%2C100%2C163%2C1%2C124%2C14%2C122%2C12%2C2%2C57%2C93%2C65%2C118%2C89%2C88%2C166%2C167%2C94%2C95%2C9%2C125%2C102%2C51%2C142%2C87%2C79%2C71%2C117%2C106%2C43%2C143%2C0%2C82%2C137%2C140%2C153%2C38%2C108%2C13%2C168 | 198ms | 183ms | 15ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=DC-13341218&cx=c>m=4e64f0 | 164ms | 137ms | 25ms | 3rd |
| https://ir.ebaystatic.com/rs/c/discoveryplatformweb/_CHv4gJEL.js | 161ms | 20ms | 3ms | 3rd |
| https://ir.ebaystatic.com/cr/v/c01/89466f2c-a8ad-4fb1-83ee-683e13ae2786.min.js | 160ms | 153ms | 6ms | 3rd |
Showing top 10 of 19 scripts
FJS BundlesAction53 scripts, 625 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://ir.ebaystatic.com/rs/c/discoveryplatformweb/_CHv4gJEL.js | 266 KB | 186 KB (70%) | ✓ | 3rd |
| https://www.ebay.com/ifh/ifh-vendor0909758836facad3e08a.js | 279 KB | 164 KB (59%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=DC-13341218&cx=c>m=4e64f0 | 131 KB | 57 KB (43%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-1005566788&cx=c>m=4e64f0 | 136 KB | 55 KB (41%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-1070599711 | 148 KB | 52 KB (35%) | ✓ | 3rd |
| https://www.ebay.com/ifh/ifh915415ef327025582dd5.js | 76 KB | 33 KB (44%) | ✓ | 3rd |
| https://connect.facebook.net/en_US/fbevents.js | 96 KB | 33 KB (34%) | ✓ | 3rd |
| https://ir.ebaystatic.com/rs/c/mweb-gh-ur0DMd1E.js | 54 KB | 23 KB (43%) | ✓ | 3rd |
| https://ir.ebaystatic.com/cr/v/c01/code.jquery.com_jquery-3.7.1.min.js | 31 KB | 21 KB (70%) | ✓ | 3rd |
| https://mkttag.ebay.com/tag-manager/v1/tag/utag.10.js?utv=ut4.51.202507151247 | 5 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 InventoryAction312 resources · 5.3 MB · 625 KB savings availableFIX
~624.5 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 312 resources | 5.3 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 Optimization78 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
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 Hints7 hints, 0 missing preconnectsPASS
Current Resource Hints
7 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall312 requests over 6025msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.ebay.com www.ebay.com | Other | 2107ms | 91 KB | — | $12/mo | Costly |
Unattributable Unattributable | Other | 1778ms | 0 KB | — | $10/mo | Costly |
www.ebay.com www.ebay.com | Other | 671ms | 279 KB | 59% | $4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 437ms | 148 KB | 35% | $2/mo | Costly |
ir.ebaystatic.com ir.ebaystatic.com | Other | 363ms | 35 KB | — | $2/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 244ms | 136 KB | 41% | $1/mo | Costly |
Facebook Pixel connect.facebook.net | Advertising | 198ms | 50 KB | — | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 164ms | 131 KB | 43% | $1/mo | Optional |
ir.ebaystatic.com ir.ebaystatic.com | Other | 161ms | 266 KB | 70% | $1/mo | Optional |
ir.ebaystatic.com ir.ebaystatic.com | Other | 160ms | 23 KB | — | $1/mo | Optional |
ir.ebaystatic.com ir.ebaystatic.com | Other | 141ms | 114 KB | — | $1/mo | Optional |
sc-static.net sc-static.net | Other | 133ms | 25 KB | — | $1/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 115ms | 96 KB | 34% | $1/mo | Optional |
s.pinimg.com s.pinimg.com | Other | 89ms | 27 KB | — | $1/mo | Optional |
mkttag.ebay.com mkttag.ebay.com | Other | 85ms | 19 KB | — | $0/mo | Optional |
dynamic.criteo.com dynamic.criteo.com | Other | 85ms | 25 KB | — | $0/mo | Optional |
ir.ebaystatic.com ir.ebaystatic.com | Other | 80ms | 31 KB | 70% | $0/mo | Optional |
ir.ebaystatic.com ir.ebaystatic.com | Other | 62ms | 54 KB | 43% | $0/mo | Optional |
ir.ebaystatic.com ir.ebaystatic.com | Other | 57ms | 16 KB | — | $0/mo | Optional |
These scripts may cost more than they're worth
- www.ebay.com adds 2107ms and costs ~$12/month
- Unattributable adds 1778ms and costs ~$10/month
- www.ebay.com adds 671ms and costs ~$4/month
- Google Tag Manager adds 437ms and costs ~$2/month
- ir.ebaystatic.com adds 363ms and costs ~$2/month
- Google Tag Manager adds 244ms and costs ~$1/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.com takes 2107ms 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 1778ms 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
www.ebay.com takes 671ms 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.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
Google Tag Manager takes 437ms 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
ir.ebaystatic.com takes 363ms 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 244ms 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
70% of ir.ebaystatic.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
70% of ir.ebaystatic.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