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.
4.86 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
24.39 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
4.15 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.136
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
9.51 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.
34.00 s
Page Load Progression
FPage Weight BudgetAction4.9 MB transferred, 265 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 CostAction14063ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 2594ms | 753ms | 0ms | 3rd |
| https://www.expansion.com/ | 2225ms | 357ms | 42ms | 3rd |
| https://sdk.privacy-center.org/sdk/d4911c3d5b4b9a80b40e05167f53d1b1e8da81f3/modern/ui-web-en-web.d4911c3d5b4b9a80b40e05167f53d1b1e8da81f3.js | 1453ms | 737ms | 31ms | 3rd |
| https://cdn.tinypass.com/api/tinypass.min.js | 708ms | 462ms | 101ms | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604140101/pubads_impl.js?cb=31097850 | 436ms | 370ms | 60ms | 3rd |
| https://sdk.privacy-center.org/sdk/d4911c3d5b4b9a80b40e05167f53d1b1e8da81f3/modern/sdk.d4911c3d5b4b9a80b40e05167f53d1b1e8da81f3.js | 435ms | 354ms | 40ms | 3rd |
| https://cdn.permutive.com/10453011-272d-49cd-9043-1964fdb36fd8-web.js | 386ms | 185ms | 158ms | 3rd |
| https://tags.tiqcdn.com/utag/unidadeditorial/expansion/prod/utag.js | 380ms | 270ms | 90ms | 3rd |
| https://e00-elmundo.uecdn.es/js/pbex.js | 357ms | 190ms | 146ms | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=DC-12125487&cx=c>m=4e64e1&bs=ctrl2 | 353ms | 202ms | 35ms | 3rd |
Showing top 10 of 42 scripts
FJS BundlesAction99 scripts, 1.2 MB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604140101/pubads_impl.js?cb=31097850 | 188 KB | 133 KB (71%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-791139749&cx=c>m=4e64e1&bs=ctrl2 | 134 KB | 101 KB (76%) | ✓ | 3rd |
| https://e00-elmundo.uecdn.es/js/pbex.js | 145 KB | 99 KB (69%) | ✓ | 3rd |
| https://adtcdn.unidadeditorial.es/gexp/_gam_kv_.js | 150 KB | 98 KB (65%) | ✓ | 3rd |
| https://cdn.tinypass.com/api/tinypass.min.js | 132 KB | 70 KB (53%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=DC-12125487&cx=c>m=4e64e1&bs=ctrl2 | 129 KB | 64 KB (49%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-10944295485&cx=c>m=4e64e1&bs=ctrl2 | 145 KB | 62 KB (43%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-791139749 | 134 KB | 62 KB (46%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-6PBJCECHCM&cx=c>m=4e64e1&bs=ctrl2 | 145 KB | 61 KB (42%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=UA-181957286-3 | 116 KB | 59 KB (51%) | ✓ | 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 InventoryAction265 resources · 4.9 MB · 1.2 MB savings availableFIX
~1.2 MiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 265 resources | 4.9 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CImage OptimizationAction95 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
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 Loading12 fonts (271 KB)PASS
Web fonts
12
271 KB total
Render-blocking
0
of 12
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 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
Network Waterfall265 requests over 7550msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 2594ms | 0 KB | — | €28/mo | Costly |
www.expansion.com www.expansion.com | Other | 2225ms | 86 KB | — | €24/mo | Costly |
sdk.privacy-center.org sdk.privacy-center.org | Other | 1453ms | 54 KB | — | €16/mo | Costly |
cdn.tinypass.com cdn.tinypass.com | Other | 708ms | 132 KB | 53% | €8/mo | Costly |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 436ms | 188 KB | 71% | €5/mo | Costly |
sdk.privacy-center.org sdk.privacy-center.org | Other | 435ms | 102 KB | 43% | €5/mo | Costly |
cdn.permutive.com cdn.permutive.com | Other | 386ms | 194 KB | 20% | €4/mo | Costly |
tags.tiqcdn.com tags.tiqcdn.com | Other | 380ms | 79 KB | 45% | €4/mo | Costly |
e00-elmundo.uecdn.es e00-elmundo.uecdn.es | Other | 357ms | 145 KB | 69% | €4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 353ms | 129 KB | 49% | €4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 331ms | 145 KB | 43% | €4/mo | Costly |
es-config.sensic.net es-config.sensic.net | Other | 320ms | 31 KB | — | €3/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 317ms | 145 KB | 42% | €3/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 300ms | 134 KB | 46% | €3/mo | Costly |
components.unidadeditorial.es components.unidadeditorial.es | Other | 299ms | 182 KB | 15% | €3/mo | Costly |
sdk.privacy-center.org sdk.privacy-center.org | Other | 277ms | 1 KB | — | €3/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 229ms | 116 KB | 51% | €2/mo | Costly |
fundingchoicesmessages.google.com fundingchoicesmessages.google.com | Other | 227ms | 70 KB | 49% | €2/mo | Costly |
c.amazon-adsystem.com c.amazon-adsystem.com | Other | 218ms | 91 KB | 64% | €2/mo | Costly |
optiyield.opti-digital.com optiyield.opti-digital.com | Other | 209ms | 32 KB | — | €2/mo | Costly |
aswpsdkeu.com aswpsdkeu.com | Other | 164ms | 41 KB | 74% | €2/mo | Optional |
e01-expansion.uecdn.es e01-expansion.uecdn.es | Other | 160ms | 15 KB | — | €2/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 144ms | 78 KB | 64% | €2/mo | Optional |
e01-expansion.uecdn.es e01-expansion.uecdn.es | Other | 133ms | 32 KB | — | €1/mo | Optional |
adtcdn.unidadeditorial.es adtcdn.unidadeditorial.es | Other | 131ms | 150 KB | 65% | €1/mo | Optional |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 117ms | 35 KB | — | €1/mo | Optional |
tags.tiqcdn.com tags.tiqcdn.com | Other | 107ms | 2 KB | — | €1/mo | Optional |
static.chartbeat.com static.chartbeat.com | Other | 104ms | 16 KB | — | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 92ms | 134 KB | 76% | €1/mo | Optional |
cdn.cxense.com cdn.cxense.com | Other | 88ms | 38 KB | 66% | €1/mo | Optional |
api-esp.piano.io api-esp.piano.io | Other | 86ms | 29 KB | — | €1/mo | Optional |
fundingchoicesmessages.google.com fundingchoicesmessages.google.com | Other | 74ms | 4 KB | — | €1/mo | Optional |
/_/mss/boq-content-ads-contributor/_/js/k=boq-content-ads-contributor.ContributorServingResponseClientJs.en_US.WQSjKtkEYiM.es5.O/d=1/rs=AJlcJMwIx8fty2eKv_YgAn45g2tx1JaJ2w/m=kernel_loader,loader_js_executable /_/mss/boq-content-ads-contributor/_/js/k=boq-content-ads-contributor.ContributorServingResponseClientJs.en_US.WQSjKtkEYiM.es5.O/d=1/rs=AJlcJMwIx8fty2eKv_YgAn45g2tx1JaJ2w/m=kernel_loader,loader_js_executable | Other | 72ms | 0 KB | — | €1/mo | Optional |
LinkedIn Insight snap.licdn.com | Advertising | 72ms | 19 KB | — | €1/mo | Optional |
fundingchoicesmessages.google.com fundingchoicesmessages.google.com | Other | 69ms | 2 KB | — | €1/mo | Optional |
sdk.mrf.io sdk.mrf.io | Other | 66ms | 58 KB | 39% | €1/mo | Optional |
e01-expansion.uecdn.es e01-expansion.uecdn.es | Other | 62ms | 19 KB | — | €1/mo | Optional |
Google Analytics www.google-analytics.com | Analytics | 56ms | 21 KB | — | €1/mo | Optional |
e01-expansion.uecdn.es e01-expansion.uecdn.es | Other | 55ms | 39 KB | 83% | €1/mo | Optional |
e00-ue.uecdn.es e00-ue.uecdn.es | Other | 55ms | 30 KB | — | €1/mo | Optional |
cdn.cxense.com cdn.cxense.com | Other | 52ms | 7 KB | — | €1/mo | Optional |
cdn.cxense.com cdn.cxense.com | Other | 51ms | 6 KB | — | €1/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 2594ms and costs ~€28/month
- www.expansion.com adds 2225ms and costs ~€24/month
- sdk.privacy-center.org adds 1453ms and costs ~€16/month
- cdn.tinypass.com adds 708ms and costs ~€8/month
- securepubads.g.doubleclick.net adds 436ms and costs ~€5/month
- sdk.privacy-center.org adds 435ms and costs ~€5/month
- cdn.permutive.com adds 386ms and costs ~€4/month
- tags.tiqcdn.com adds 380ms and costs ~€4/month
- e00-elmundo.uecdn.es adds 357ms and costs ~€4/month
- Google Tag Manager adds 353ms and costs ~€4/month
- Google Tag Manager adds 331ms and costs ~€4/month
- es-config.sensic.net adds 320ms and costs ~€3/month
- Google Tag Manager adds 317ms and costs ~€3/month
- Google Tag Manager adds 300ms and costs ~€3/month
- components.unidadeditorial.es adds 299ms and costs ~€3/month
- sdk.privacy-center.org adds 277ms and costs ~€3/month
- Google Tag Manager adds 229ms and costs ~€2/month
- fundingchoicesmessages.google.com adds 227ms and costs ~€2/month
- c.amazon-adsystem.com adds 218ms and costs ~€2/month
- optiyield.opti-digital.com adds 209ms and costs ~€2/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
Unattributable takes 2594ms 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.expansion.com takes 2225ms 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
sdk.privacy-center.org takes 1453ms 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.tinypass.com takes 708ms 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 cdn.tinypass.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
securepubads.g.doubleclick.net takes 436ms 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
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
sdk.privacy-center.org takes 435ms 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.permutive.com takes 386ms 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
tags.tiqcdn.com takes 380ms 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
e00-elmundo.uecdn.es takes 357ms 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
69% of e00-elmundo.uecdn.es'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 353ms 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 331ms 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
es-config.sensic.net takes 320ms 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 317ms 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 300ms 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
components.unidadeditorial.es takes 299ms 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
sdk.privacy-center.org 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 229ms 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
51% 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
fundingchoicesmessages.google.com takes 227ms 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 218ms 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
64% of c.amazon-adsystem.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
optiyield.opti-digital.com takes 209ms 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
74% of aswpsdkeu.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
64% 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
65% of adtcdn.unidadeditorial.es'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
76% 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
66% of cdn.cxense.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
83% of e01-expansion.uecdn.es'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