Performance
· 14 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.
1.69 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
4.74 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
744 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.116
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
3.66 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.
7.24 s
Page Load Progression
FPage Weight BudgetAction4.3 MB transferred, 187 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
Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.
CSS bundle is large — purge unused styles (PurgeCSS, Tailwind JIT) to reduce CSS payload.
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
DJS Execution CostAction3065ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://a-v2.sndcdn.com/assets/1-d8812a5b.js | 1076ms | 870ms | 9ms | 3rd |
| Unattributable | 421ms | 86ms | 0ms | 3rd |
| https://soundcloud.com/ | 252ms | 12ms | 4ms | 3rd |
| https://dwt.soundcloud.com/tags.js | 252ms | 228ms | 7ms | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604030101/pubads_impl.js?cb=31097680 | 219ms | 185ms | 14ms | 3rd |
| https://a-v2.sndcdn.com/assets/54-0c737354.js | 189ms | 34ms | 98ms | 3rd |
| https://secure.sndcdn.com/web_auth-4b761050fb7cdce9398b.js | 147ms | 87ms | 59ms | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202603.1.0/otBannerSdk.js | 120ms | 74ms | 16ms | 3rd |
| https://edge.aditude.io/prebid/9.19.0.js?fork=1&v=d08ffedca58399a64e6a4a841c8af6bd&modules=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 | 83ms | 66ms | 16ms | 3rd |
| https://c.amazon-adsystem.com/aax2/apstag.js | 82ms | 69ms | 10ms | 3rd |
Showing top 10 of 14 scripts
FJS BundlesAction61 scripts, 1.7 MB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://a-v2.sndcdn.com/assets/54-0c737354.js | 789 KB | 659 KB (83%) | ✓ | 3rd |
| https://a-v2.sndcdn.com/assets/0-3039272b.js | 192 KB | 165 KB (86%) | ✓ | 3rd |
| https://a-v2.sndcdn.com/assets/2-37be9845.js | 188 KB | 157 KB (84%) | ✓ | 3rd |
| https://a-v2.sndcdn.com/assets/55-9729b51d.js | 192 KB | 137 KB (72%) | ✓ | 3rd |
| https://edge.aditude.io/prebid/9.19.0.js?fork=1&v=d08ffedca58399a64e6a4a841c8af6bd&modules=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 | 177 KB | 125 KB (71%) | ✓ | 3rd |
| https://secure.sndcdn.com/web_auth-4b761050fb7cdce9398b.js | 240 KB | 102 KB (43%) | ✓ | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604030101/pubads_impl.js?cb=31097680 | 183 KB | 97 KB (53%) | ✓ | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202603.1.0/otBannerSdk.js | 130 KB | 67 KB (52%) | ✓ | 3rd |
| https://raven-static.aditude.io/prod/1.19.13-0fnlww/raven.js | 107 KB | 62 KB (58%) | ✓ | 3rd |
| https://a-v2.sndcdn.com/assets/1-d8812a5b.js | 97 KB | 59 KB (61%) | ✓ | 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
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization36 images, 0 KB saveableREVIEW
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 Loading6 fonts (264 KB)PASS
Web fonts
6
264 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
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 ~52 KB and ~104 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
Network Waterfall187 requests over 0msINFO
Performance analysis not available for this result.
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
a-v2.sndcdn.com a-v2.sndcdn.com | Other | 1076ms | 97 KB | 61% | €6/mo | Costly |
Unattributable Unattributable | Other | 421ms | 0 KB | — | €2/mo | Costly |
soundcloud.com soundcloud.com | Other | 252ms | 21 KB | — | €1/mo | Costly |
dwt.soundcloud.com dwt.soundcloud.com | Other | 252ms | 0 KB | — | €1/mo | Costly |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 219ms | 183 KB | 53% | €1/mo | Costly |
a-v2.sndcdn.com a-v2.sndcdn.com | Other | 189ms | 789 KB | 83% | €1/mo | Optional |
secure.sndcdn.com secure.sndcdn.com | Other | 147ms | 240 KB | 43% | €1/mo | Optional |
OneTrust cdn.cookielaw.org | Consent | 120ms | 130 KB | 52% | €1/mo | Essential |
edge.aditude.io edge.aditude.io | Other | 83ms | 177 KB | 71% | €0/mo | Optional |
c.amazon-adsystem.com c.amazon-adsystem.com | Other | 82ms | 0 KB | — | €0/mo | Optional |
dn0qt3r0xannq.cloudfront.net dn0qt3r0xannq.cloudfront.net | Other | 62ms | 5 KB | — | €0/mo | Optional |
cadmus.script.ac cadmus.script.ac | Other | 58ms | 83 KB | — | €0/mo | Optional |
dn0qt3r0xannq.cloudfront.net dn0qt3r0xannq.cloudfront.net | Other | 54ms | 94 KB | 50% | €0/mo | Optional |
raven-static.aditude.io raven-static.aditude.io | Other | 50ms | 107 KB | 58% | €0/mo | Optional |
These scripts may cost more than they're worth
- a-v2.sndcdn.com adds 1076ms and costs ~€6/month
- Unattributable adds 421ms and costs ~€2/month
- soundcloud.com adds 252ms and costs ~€1/month
- dwt.soundcloud.com adds 252ms and costs ~€1/month
- securepubads.g.doubleclick.net adds 219ms 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
a-v2.sndcdn.com takes 1076ms 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
61% of a-v2.sndcdn.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 421ms 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
soundcloud.com takes 252ms 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
dwt.soundcloud.com takes 252ms 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
securepubads.g.doubleclick.net takes 219ms 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
53% of securepubads.g.doubleclick.net'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
83% of a-v2.sndcdn.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
52% of OneTrust'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 edge.aditude.io'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
50% of dn0qt3r0xannq.cloudfront.net'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
58% of raven-static.aditude.io'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