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.
869 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.91 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
318 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.034
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
2.54 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.
4.17 s
Page Load Progression
FPage Weight BudgetAction3.8 MB transferred, 161 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 ImpactAction71% third-party, 0 ms blockingFIX
DJS Execution CostAction3082ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://audiomack.com/ | 794ms | 65ms | 92ms | 1st |
| Unattributable | 482ms | 35ms | 0ms | 3rd |
| https://audiomack.com/_next/static/chunks/7368-c07261503f9dfb29.js | 472ms | 429ms | 9ms | 1st |
| https://cmp.inmobi.com/tcfv2/60/cmp2ui-en.js | 217ms | 150ms | 25ms | 3rd |
| https://cmp.inmobi.com/tcfv2/60/cmp2.js?referer=audiomack.com | 215ms | 150ms | 22ms | 3rd |
| https://audiomack.com/_next/static/chunks/webpack-c485e61ffff0015c.js | 163ms | 162ms | 0ms | 1st |
| https://cdn.cookielaw.org/scripttemplates/202307.1.0/otBannerSdk.js | 114ms | 73ms | 15ms | 3rd |
| https://www.googletagmanager.com/gtag/js?l=dataLayer&id=G-5MYG3KCFYR | 109ms | 88ms | 19ms | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js | 101ms | 70ms | 23ms | 3rd |
| https://raven-static.aditude.io/prod/1.19.14-y0ptsc/raven.js | 79ms | 58ms | 21ms | 3rd |
Showing top 10 of 15 scripts
FJS BundlesAction67 scripts, 616 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js | 188 KB | 124 KB (66%) | ✓ | 3rd |
| https://edge.aditude.io/prebid/9.30.0.js?fork=1&v=bf6611fc0393cee6578a23c9bb56896d&modules=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%3D | 124 KB | 88 KB (71%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?l=dataLayer&id=G-5MYG3KCFYR | 160 KB | 66 KB (41%) | ✓ | 3rd |
| https://raven-static.aditude.io/prod/1.19.14-y0ptsc/raven.js | 107 KB | 63 KB (59%) | ✓ | 3rd |
| https://cmp.inmobi.com/tcfv2/60/cmp2.js?referer=audiomack.com | 114 KB | 55 KB (48%) | ✓ | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202307.1.0/otBannerSdk.js | 98 KB | 49 KB (50%) | ✓ | 3rd |
| https://dn0qt3r0xannq.cloudfront.net/audiomack-IKOJVsfn7p/ui_audiomack.com/prebid-wrapper.js | 86 KB | 36 KB (43%) | ✓ | 3rd |
| https://audiomack.com/_next/static/chunks/2848-b2f44fbfd33120b9.js | 31 KB | 26 KB (87%) | ✓ | 1st |
| https://securepubads.g.doubleclick.net/tag/js/gpt.js | 34 KB | 24 KB (71%) | ✓ | 3rd |
| https://audiomack.com/_next/static/chunks/4074-b8d57585b8c7ff8b.js | 30 KB | 24 KB (85%) | ✓ | 1st |
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 InventoryAction161 resources · 3.8 MB · 616 KB savings availableFIX
~616.2 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 161 resources | 3.8 MiB | ||||||
BImage Optimization32 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 Loading3 fonts (92 KB)PASS
Web fonts
3
92 KB total
Render-blocking
0
of 3
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
A+HTTP Cachingmax-age=60 (1 minute)PASS
public, s-maxage=60, stale-while-revalidate=59, max-age=60
| Directive | Value | Meaning |
|---|---|---|
| public | — | Any cache may store this response |
| s-maxage | 60 | CDN caches for 1 minute |
| stale-while-revalidate | 59 | Serve stale for 59 seconds while fetching fresh |
| max-age | 60 | Cache for 1 minute |
Network Waterfall161 requests over 4646msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 482ms | 0 KB | — | €5/mo | Costly |
cmp.inmobi.com cmp.inmobi.com | Other | 217ms | 108 KB | 47% | €2/mo | Costly |
cmp.inmobi.com cmp.inmobi.com | Other | 215ms | 114 KB | 48% | €2/mo | Costly |
OneTrust cdn.cookielaw.org | Consent | 114ms | 98 KB | 50% | €1/mo | Essential |
Google Tag Manager www.googletagmanager.com | Tag Manager | 109ms | 160 KB | 41% | €1/mo | Optional |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 101ms | 188 KB | 66% | €1/mo | Optional |
raven-static.aditude.io raven-static.aditude.io | Other | 79ms | 107 KB | 59% | €1/mo | Optional |
edge.aditude.io edge.aditude.io | Other | 76ms | 124 KB | 71% | €1/mo | Optional |
dn0qt3r0xannq.cloudfront.net dn0qt3r0xannq.cloudfront.net | Other | 73ms | 86 KB | 43% | €1/mo | Optional |
dn0qt3r0xannq.cloudfront.net dn0qt3r0xannq.cloudfront.net | Other | 69ms | 2 KB | — | €1/mo | Optional |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 54ms | 34 KB | 71% | €1/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 482ms and costs ~€5/month
- cmp.inmobi.com adds 217ms and costs ~€2/month
- cmp.inmobi.com adds 215ms and costs ~€2/month
52% of JavaScript execution time comes from third-party scripts.
Third-party scripts (analytics, ads, social, A/B testing) often dominate execution time — every one is a perf-and-privacy tax.
Learn more ▾ ▴
Each third-party script is a black box: you don't control when it loads, what it executes, or how much it grows. They often account for a major share of total blocking time on average sites (HTTP Archive's Web Almanac documents the trend). Audit which ones you actually need, defer the rest, and use facade patterns (lite-youtube, lite-vimeo) for embedded media.
Source: web.dev / HTTP Archive Web Almanac
Unattributable takes 482ms 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
cmp.inmobi.com takes 217ms 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
cmp.inmobi.com takes 215ms 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
50% 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
66% 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
59% 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
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
71% 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