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.
9.19 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
20.88 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
3.09 s
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.
10.37 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.
25.54 s
Page Load Progression
FPage Weight BudgetAction4.0 MB transferred, 236 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
Subset fonts to include only used characters, or switch to system font stacks.
Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).
Source: web.dev font loading
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 CostAction13334ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.mixcloud.com/assets/index-BvekZo2a.js | 7635ms | 5841ms | 10ms | 3rd |
| Unattributable | 2184ms | 194ms | 0ms | 3rd |
| https://www.mixcloud.com/ | 1520ms | 6ms | 2ms | 3rd |
| https://gtm-cloud-run.mixcloud.com/gtag/js?id=G-F1JH45MWZ3&cx=c>m=4e64h1&sign=2adff846d5938bed4e92daa49877010164d6df07d09aa361b30b011959a740c6_20260421 | 538ms | 456ms | 75ms | 3rd |
| https://connect.facebook.net/en_US/fbevents.js | 348ms | 205ms | 135ms | 3rd |
| https://connect.facebook.net/signals/config/1344829724014495?v=2.9.303&r=stable&domain=www.mixcloud.com&hme=97937018cefade17726f0472876fc101316b2ce9008a35a6a5a7977d7436151a&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%2C276%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%2C263%2C264%2C262%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%2C278%2C293%2C212%2C201%2C202%2C200%2C296%2C288%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 | 330ms | 281ms | 48ms | 3rd |
| https://imasdk.googleapis.com/js/sdkloader/ima3.js | 248ms | 190ms | 45ms | 3rd |
| https://pagead2.googlesyndication.com/omsdk/releases/live/omweb-v1.js | 150ms | 131ms | 6ms | 3rd |
| https://gtm-cloud-run.mixcloud.com/gtm.js?id=GTM-T7WS7RC | 149ms | 101ms | 47ms | 3rd |
| https://connect.facebook.net/en_US/bundle/sdk.js/ | 97ms | 66ms | 30ms | 3rd |
Showing top 10 of 12 scripts
FJS BundlesAction124 scripts, 570 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.mixcloud.com/assets/index-BvekZo2a.js | 570 KB | 200 KB (35%) | ✓ | 3rd |
| https://imasdk.googleapis.com/js/sdkloader/ima3.js | 146 KB | 97 KB (66%) | ✓ | 3rd |
| https://gtm-cloud-run.mixcloud.com/gtag/js?id=G-F1JH45MWZ3&cx=c>m=4e64h1&sign=2adff846d5938bed4e92daa49877010164d6df07d09aa361b30b011959a740c6_20260421 | 167 KB | 65 KB (39%) | ✓ | 3rd |
| https://gtm-cloud-run.mixcloud.com/gtm.js?id=GTM-T7WS7RC | 149 KB | 62 KB (41%) | ✓ | 3rd |
| https://connect.facebook.net/en_US/bundle/sdk.js/ | 78 KB | 49 KB (63%) | ✓ | 3rd |
| https://connect.facebook.net/signals/config/1344829724014495?v=2.9.303&r=stable&domain=www.mixcloud.com&hme=97937018cefade17726f0472876fc101316b2ce9008a35a6a5a7977d7436151a&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%2C276%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%2C263%2C264%2C262%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%2C278%2C293%2C212%2C201%2C202%2C200%2C296%2C288%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 | 125 KB | 36 KB (29%) | ✓ | 3rd |
| https://connect.facebook.net/en_US/fbevents.js | 97 KB | 34 KB (35%) | ✓ | 3rd |
| https://www.mixcloud.com/assets/mix-XeVg-U9G.js | 54 KB | 28 KB (53%) | ✓ | 3rd |
| https://www.mixcloud.com/assets/mix-CTm5aSs5.js | 1 KB | — | ✓ | 3rd |
| https://www.mixcloud.com/assets/mix-Ciy1IGCx.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 InventoryAction236 resources · 4.0 MB · 570 KB savings availableFIX
~570.3 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 236 resources | 4.0 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization40 images, 0 KB saveableREVIEW
A+Text CompressionAll text resources are compressedPASS
A+Font Loading6 fonts (393 KB)PASS
Web fonts
6
393 KB total
Render-blocking
0
of 6
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
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 ~148 KB and ~296 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints1 hints, 0 missing preconnectsPASS
Current Resource Hints
1 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: Cloudflare
Network Waterfall236 requests over 5186msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.mixcloud.com www.mixcloud.com | Other | 7635ms | 570 KB | 35% | $101/mo | Costly |
Unattributable Unattributable | Other | 2184ms | 0 KB | — | $29/mo | Costly |
www.mixcloud.com www.mixcloud.com | Other | 1520ms | 2 KB | — | $20/mo | Costly |
gtm-cloud-run.mixcloud.com gtm-cloud-run.mixcloud.com | Other | 538ms | 167 KB | 39% | $7/mo | Costly |
Facebook Pixel connect.facebook.net | Advertising | 348ms | 97 KB | 35% | $5/mo | Costly |
Facebook Pixel connect.facebook.net | Advertising | 330ms | 125 KB | 29% | $4/mo | Costly |
imasdk.googleapis.com imasdk.googleapis.com | Other | 248ms | 146 KB | 66% | $3/mo | Costly |
pagead2.googlesyndication.com pagead2.googlesyndication.com | Other | 150ms | 15 KB | — | $2/mo | Optional |
gtm-cloud-run.mixcloud.com gtm-cloud-run.mixcloud.com | Other | 149ms | 149 KB | 41% | $2/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 97ms | 78 KB | 63% | $1/mo | Optional |
static.cloudflareinsights.com static.cloudflareinsights.com | Other | 85ms | 0 KB | — | $1/mo | Optional |
www.mixcloud.com www.mixcloud.com | Other | 50ms | 49 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- www.mixcloud.com adds 7635ms and costs ~$101/month
- Unattributable adds 2184ms and costs ~$29/month
- www.mixcloud.com adds 1520ms and costs ~$20/month
- gtm-cloud-run.mixcloud.com adds 538ms and costs ~$7/month
- Facebook Pixel adds 348ms and costs ~$5/month
- Facebook Pixel adds 330ms and costs ~$4/month
- imasdk.googleapis.com adds 248ms 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.mixcloud.com takes 7635ms 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 2184ms 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.mixcloud.com takes 1520ms 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
gtm-cloud-run.mixcloud.com takes 538ms 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
Facebook Pixel takes 348ms 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
Facebook Pixel takes 330ms 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
imasdk.googleapis.com takes 248ms 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
66% of imasdk.googleapis.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
63% of Facebook Pixel'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