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.
3.46 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
5.45 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
16.95 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.392
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
15.91 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.
32.41 s
Page Load Progression
FPage Weight BudgetAction4.4 MB transferred, 150 requestsFIX
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
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
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 CostAction36047ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.beatport.com/_next/static/chunks/main-a5aae74be129378f.js | 20290ms | 19133ms | 70ms | 3rd |
| https://www.beatport.com/_next/static/chunks/framework-6c55efe846e5f339.js | 7058ms | 6350ms | 10ms | 3rd |
| https://www.beatport.com/ | 2481ms | 82ms | 4ms | 3rd |
| Unattributable | 1636ms | 427ms | 0ms | 3rd |
| https://www.beatport.com/_next/static/chunks/pages/_app-c20796a82e8e689d.js | 622ms | 430ms | 158ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-TXN4GRJ | 617ms | 524ms | 78ms | 3rd |
| https://www.beatport.com/_next/static/chunks/98e2d21d.fb925bb3ca558eaa.js | 534ms | 480ms | 53ms | 3rd |
| https://cdn-ukwest.onetrust.com/scripttemplates/202502.1.0/otBannerSdk.js | 414ms | 295ms | 45ms | 3rd |
| https://scripts.clarity.ms/0.8.59/clarity.js | 394ms | 353ms | 7ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-1061620193&cx=c>m=4e64k0 | 329ms | 259ms | 34ms | 3rd |
Showing top 10 of 19 scripts
FJS BundlesAction43 scripts, 1.2 MB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.beatport.com/_next/static/chunks/pages/_app-c20796a82e8e689d.js | 597 KB | 388 KB (65%) | ✓ | 3rd |
| https://www.beatport.com/_next/static/chunks/main-a5aae74be129378f.js | 320 KB | 202 KB (63%) | ✓ | 3rd |
| https://www.beatport.com/_next/static/chunks/98e2d21d.fb925bb3ca558eaa.js | 180 KB | 163 KB (91%) | ✓ | 3rd |
| https://songbird.cardinalcommerce.com/edge/v1/597f4104d311c33d4189/1.597f4104d311c33d4189.songbird.js | 153 KB | 110 KB (73%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-GWHDKGPDMV&cx=c>m=4e64k0 | 174 KB | 71 KB (41%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-R8MK3N94P6&cx=c>m=4e64k0 | 157 KB | 66 KB (42%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-1061620193&cx=c>m=4e64k0 | 145 KB | 65 KB (45%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-TXN4GRJ | 166 KB | 62 KB (37%) | ✓ | 3rd |
| https://cdn-ukwest.onetrust.com/scripttemplates/202502.1.0/otBannerSdk.js | 115 KB | 57 KB (49%) | ✓ | 3rd |
| https://siteintercept.qualtrics.com/dxjsmodule/12.1a2b7192fd54e87d3971.chunk.js?Q_CLIENTVERSION=2.46.0&Q_CLIENTTYPE=web&Q_BRANDID=www.beatport.com | 36 KB | 25 KB (71%) | ✓ | 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 InventoryAction150 resources · 4.4 MB · 1.2 MB savings availableFIX
~1.2 MiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 150 resources | 4.4 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization57 images, 0 KB saveableREVIEW
A+Text CompressionAll text resources are compressedPASS
A+Font Loading3 fonts (138 KB)PASS
Web fonts
3
138 KB total
Render-blocking
0
of 3
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
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 ~41 KB and ~82 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints15 hints, 0 missing preconnectsPASS
Current Resource Hints
15 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Google Cloud
Network Waterfall150 requests over 9414msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.beatport.com www.beatport.com | Other | 20290ms | 320 KB | 63% | $269/mo | Costly |
www.beatport.com www.beatport.com | Other | 7058ms | 52 KB | — | $94/mo | Costly |
www.beatport.com www.beatport.com | Other | 2481ms | 215 KB | — | $33/mo | Costly |
Unattributable Unattributable | Other | 1636ms | 0 KB | — | $22/mo | Costly |
www.beatport.com www.beatport.com | Other | 622ms | 597 KB | 65% | $8/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 617ms | 166 KB | 37% | $8/mo | Costly |
www.beatport.com www.beatport.com | Other | 534ms | 180 KB | 91% | $7/mo | Costly |
cdn-ukwest.onetrust.com cdn-ukwest.onetrust.com | Other | 414ms | 115 KB | 49% | $6/mo | Costly |
Microsoft Clarity scripts.clarity.ms | Session Replay | 394ms | 26 KB | — | $5/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 329ms | 145 KB | 45% | $4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 324ms | 174 KB | 41% | $4/mo | Costly |
www.beatport.com www.beatport.com | Other | 277ms | 0 KB | — | $4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 275ms | 157 KB | 42% | $4/mo | Costly |
try.abtasty.com try.abtasty.com | Other | 255ms | 53 KB | 46% | $3/mo | Costly |
songbird.cardinalcommerce.com songbird.cardinalcommerce.com | Other | 173ms | 153 KB | 73% | $2/mo | Optional |
cdn-ukwest.onetrust.com cdn-ukwest.onetrust.com | Other | 128ms | 9 KB | — | $2/mo | Optional |
try.abtasty.com try.abtasty.com | Other | 92ms | 8 KB | — | $1/mo | Optional |
siteintercept.qualtrics.com siteintercept.qualtrics.com | Other | 89ms | 36 KB | 71% | $1/mo | Optional |
www.beatport.com www.beatport.com | Other | 61ms | 8 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- www.beatport.com adds 20290ms and costs ~$269/month
- www.beatport.com adds 7058ms and costs ~$94/month
- www.beatport.com adds 2481ms and costs ~$33/month
- Unattributable adds 1636ms and costs ~$22/month
- www.beatport.com adds 622ms and costs ~$8/month
- Google Tag Manager adds 617ms and costs ~$8/month
- www.beatport.com adds 534ms and costs ~$7/month
- cdn-ukwest.onetrust.com adds 414ms and costs ~$6/month
- Microsoft Clarity adds 394ms and costs ~$5/month
- Google Tag Manager adds 329ms and costs ~$4/month
- Google Tag Manager adds 324ms and costs ~$4/month
- www.beatport.com adds 277ms and costs ~$4/month
- Google Tag Manager adds 275ms and costs ~$4/month
- try.abtasty.com adds 255ms 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
www.beatport.com takes 20290ms 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
63% of www.beatport.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
www.beatport.com takes 7058ms 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.beatport.com takes 2481ms 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 1636ms 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.beatport.com takes 622ms 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
65% of www.beatport.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 617ms 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.beatport.com takes 534ms 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
91% of www.beatport.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
cdn-ukwest.onetrust.com takes 414ms 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
Microsoft Clarity takes 394ms 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 329ms 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 324ms 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.beatport.com takes 277ms 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 275ms 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
try.abtasty.com takes 255ms 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
73% of songbird.cardinalcommerce.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
71% of siteintercept.qualtrics.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