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.
3.19 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.
4.38 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.033
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
11.70 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.
40.85 s
Page Load Progression
FPage Weight BudgetAction5.3 MB transferred, 319 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 ImpactAction97% third-party, 0 ms blockingFIX
FJS Execution CostAction15081ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 3155ms | 728ms | 0ms | 3rd |
| https://cdn-web.tunein.com/assets/js/2460.8a11b5f1f98add99c3a9.js | 2913ms | 2588ms | 6ms | 3rd |
| https://tunein.com/ | 1689ms | 645ms | 31ms | 1st |
| https://cdn-web.tunein.com/assets/js/631.4073d67947410bb48a96.js | 930ms | 906ms | 5ms | 3rd |
| https://cdn-web.tunein.com/assets/js/main-182f79bf.ed3ccb5793107ab52a72.js | 765ms | 758ms | 4ms | 3rd |
| https://c.amazon-adsystem.com/aax2/apstag.js | 710ms | 521ms | 148ms | 3rd |
| https://js.stripe.com/v3 | 404ms | 255ms | 146ms | 3rd |
| https://a.pub.network/tunein-com/pubfig.engine.mobile.js | 394ms | 320ms | 69ms | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202603.1.0/otBannerSdk.js | 349ms | 208ms | 67ms | 3rd |
| https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 335ms | 207ms | 110ms | 3rd |
Showing top 10 of 33 scripts
FJS BundlesAction154 scripts, 1.5 MB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 0 KB | 167 KB (49%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 362 KB | 167 KB (49%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 362 KB | 167 KB (49%) | ✓ | 3rd |
| https://js.stripe.com/v3 | 225 KB | 163 KB (73%) | ✓ | 3rd |
| https://a.pub.network/tunein-com/prebid.js | 188 KB | 142 KB (76%) | ✓ | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31097964 | 188 KB | 142 KB (75%) | ✓ | 3rd |
| https://imasdk.googleapis.com/js/sdkloader/ima3.js | 147 KB | 110 KB (75%) | ✓ | 3rd |
| https://a.pub.network/tunein-com/pubfig.engine.mobile.js | 146 KB | 82 KB (57%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-5GLVGMB | 130 KB | 71 KB (55%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=UA-85342105-1&cx=c>m=4e64h1 | 124 KB | 66 KB (53%) | ✓ | 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 InventoryAction319 resources · 5.3 MB · 1.5 MB savings availableFIX
~1.5 MiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 319 resources | 5.3 MiB | ||||||
DHTTP CachingActionno-store (uncacheable)FIX
no-cache, no-store
| Directive | Value | Meaning |
|---|---|---|
| no-cache | — | Cache but always revalidate first |
| no-store | — | Never cache this response |
CImage OptimizationAction49 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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
Set explicit width and height to prevent CLS.
Performance issues directly impact user engagement and conversion rates.
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
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
A+Text CompressionAll text resources are compressedPASS
A+Font Loading4 fonts (155 KB)PASS
Web fonts
4
155 KB total
Render-blocking
0
of 4
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
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 ~26 KB and ~52 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints5 hints, 0 missing preconnectsPASS
Current Resource Hints
5 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 Waterfall319 requests over 11572msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 3155ms | 0 KB | — | €34/mo | Costly |
cdn-web.tunein.com cdn-web.tunein.com | Other | 2913ms | 12 KB | — | €32/mo | Costly |
cdn-web.tunein.com cdn-web.tunein.com | Other | 930ms | 13 KB | — | €10/mo | Costly |
cdn-web.tunein.com cdn-web.tunein.com | Other | 765ms | 14 KB | — | €8/mo | Costly |
c.amazon-adsystem.com c.amazon-adsystem.com | Other | 710ms | 0 KB | 44% | €8/mo | Costly |
Stripe js.stripe.com | Payment | 404ms | 225 KB | 73% | €4/mo | Essential |
a.pub.network a.pub.network | Other | 394ms | 146 KB | 57% | €4/mo | Costly |
OneTrust cdn.cookielaw.org | Consent | 349ms | 130 KB | 53% | €4/mo | Essential |
www.gstatic.com www.gstatic.com | Other | 335ms | 0 KB | 49% | €4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 301ms | 138 KB | 40% | €3/mo | Costly |
a.pub.network a.pub.network | Other | 284ms | 188 KB | 76% | €3/mo | Costly |
tunein.com tunein.com | Other | 258ms | 0 KB | — | €3/mo | Costly |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 231ms | 188 KB | 75% | €2/mo | Costly |
cdn-web.tunein.com cdn-web.tunein.com | Other | 194ms | 30 KB | — | €2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 192ms | 124 KB | 53% | €2/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 186ms | 46 KB | — | €2/mo | Optional |
cdn-web.tunein.com cdn-web.tunein.com | Other | 184ms | 43 KB | — | €2/mo | Optional |
btloader.com btloader.com | Other | 170ms | 31 KB | — | €2/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 165ms | 97 KB | 32% | €2/mo | Optional |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 161ms | 34 KB | 71% | €2/mo | Optional |
OneTrust cdn.cookielaw.org | Consent | 141ms | 6 KB | — | €2/mo | Essential |
imasdk.googleapis.com imasdk.googleapis.com | Other | 140ms | 147 KB | 75% | €2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 119ms | 130 KB | 55% | €1/mo | Optional |
a.pub.network a.pub.network | Other | 117ms | 26 KB | — | €1/mo | Optional |
imasdk.googleapis.com imasdk.googleapis.com | Other | 104ms | 65 KB | 57% | €1/mo | Optional |
Google Analytics www.google-analytics.com | Analytics | 92ms | 21 KB | — | €1/mo | Optional |
config.aps.amazon-adsystem.com config.aps.amazon-adsystem.com | Other | 88ms | 7 KB | — | €1/mo | Optional |
config.aps.amazon-adsystem.com config.aps.amazon-adsystem.com | Other | 71ms | 1 KB | — | €1/mo | Optional |
cdn-web.tunein.com cdn-web.tunein.com | Other | 68ms | 14 KB | — | €1/mo | Optional |
cdn-web.tunein.com cdn-web.tunein.com | Other | 65ms | 23 KB | — | €1/mo | Optional |
sb.scorecardresearch.com sb.scorecardresearch.com | Other | 55ms | 0 KB | — | €1/mo | Optional |
app.link app.link | Other | 53ms | 1 KB | — | €1/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 3155ms and costs ~€34/month
- cdn-web.tunein.com adds 2913ms and costs ~€32/month
- cdn-web.tunein.com adds 930ms and costs ~€10/month
- cdn-web.tunein.com adds 765ms and costs ~€8/month
- c.amazon-adsystem.com adds 710ms and costs ~€8/month
- a.pub.network adds 394ms and costs ~€4/month
- www.gstatic.com adds 335ms and costs ~€4/month
- Google Tag Manager adds 301ms and costs ~€3/month
- a.pub.network adds 284ms and costs ~€3/month
- tunein.com adds 258ms and costs ~€3/month
- securepubads.g.doubleclick.net adds 231ms and costs ~€2/month
89% 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
Unattributable takes 3155ms 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
cdn-web.tunein.com takes 2913ms 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
cdn-web.tunein.com takes 930ms 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
cdn-web.tunein.com takes 765ms 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
c.amazon-adsystem.com takes 710ms 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 Stripe'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
a.pub.network 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
57% of a.pub.network'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
53% 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
www.gstatic.com takes 335ms 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 301ms 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
a.pub.network takes 284ms 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
76% of a.pub.network'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
tunein.com takes 258ms 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 231ms 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
75% 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
53% of Google Tag Manager'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
75% 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
55% of Google Tag Manager'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
57% 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