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https://lavanguardia.com

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
72
GRADE
C
FIX
4
REVIEW
4
PASS
5
INFO
2

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop
91
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
84
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
96
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

1.06 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

1.44 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

38 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.006

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

1.78 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.

2.14 s

Page Load Progression

375 ms
750 ms
1.1 s
1.5 s
1.9 s
2.2 s
2.6 s
3.0 s
Checks
15
5 PASS 4 REVIEW 4 FIX
D
Third-Party Impact
Action
100% third-party, 0 ms blocking
FIX
100% third-party, 0 ms blocking
Warning::
Third-party code accounts for 100% of page weight (1.8 MiB of 1.8 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Bundles
Action
31 scripts, 572 KB unused
FIX
31 scripts, 572 KB unused
Warning::
https://securepubads.g.doubleclick.net/pagead/mana...: 140 KB unused (75%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://rsc.lavanguardia.com/js/accounts-v2000031....: 112 KB unused (84%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://rsc.lavanguardia.com/js/godo-adsx-nt-v1001...: 89 KB unused (74%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-TQV...: 66 KB unused (56%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://sdk.privacy-center.org/sdk/22ecd6bfac93de6...: 45 KB unused (44%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 572 KB
572 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31097946187 KB140 KB (75%)✓3rd
https://rsc.lavanguardia.com/js/accounts-v2000031.js135 KB112 KB (84%)✓3rd
https://rsc.lavanguardia.com/js/godo-adsx-nt-v1001293.js120 KB89 KB (74%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-TQV75HX5119 KB66 KB (56%)✓3rd
https://sdk.privacy-center.org/sdk/22ecd6bfac93de604efec0b75b2c796ee1675f92/modern/sdk.22ecd6bfac93de604efec0b75b2c796ee1675f92.js102 KB45 KB (44%)✓3rd
https://service.wemass.com/dmp/cea5524788f821b6687cfc6c8027a6b8.js41 KB28 KB (71%)✓3rd
https://sdk.mrf.io/statics/marfeel-sdk.js?id=143560 KB27 KB (46%)✓3rd
https://sdk.mrf.io/statics/47bd3e88b6bda15c34ce.js24 KB22 KB (93%)✓3rd
https://static.lavanguardia.com/assets/swiper.6e0fff863f6e629399e6.js36 KB21 KB (60%)✓3rd
https://static.lavanguardia.com/assets/3.6e0fff863f6e629399e6.chunk.js34 KB21 KB (62%)✓3rd

Consider code splitting or tree shaking to reduce unused code.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

F
Page Weight Inventory
Action
70 resources · 1.8 MB · 572 KB savings available
FIX
70 resources · 1.8 MB · 572 KB savings available
Warning::
Page weight 864 KB over 1MB target
Got: 1.8 MB Expected: ≤ 1 MB
Info::
~572 KB of savings available
Warning::
69 third-party resources (100% of weight)
70 resources · 1.8 MiB · 69 third-party 863.6 KiB over 1MB target
JavaScript 61% · 1.1 MiB
Image 20% · 374.9 KiB
Font 10% · 195.0 KiB
Document 5% · 99.4 KiB
CSS 3% · 47.6 KiB
Other 1% · 23.6 KiB

~572.0 KiB of savings available

Remove unused JavaScript: 572.0 KiB
F
HTTP Caching
Action
No cache headers
FIX
No cache headers
Warning::
No Cache-Control header found
Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

C
Page Weight Budget
Action
1.8 MB transferred, 70 requests
REVIEW
1.8 MB transferred, 70 requests
Info::
Page weighs 5.5 MB (1.8 MB transferred)
Warning::
JavaScript is 1.1 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.1 MB
Info::
70 HTTP requests
Info::
Estimated 0.39 g CO2 per page load
1.8 MB / 2.4 MB budget
1.8 MB transferred
70 requests
0.39 g CO2 per page load
JavaScript 1.1 MiB 61%
Images 374.1 KiB 20%
Fonts 195.0 KiB 10%
HTML 98.1 KiB 5%
CSS 47.6 KiB 3%
Other 23.8 KiB 1%
Other 1.5 KiB 0%
Other 296 B 0%
0 2.4 MB 4.9 MB
Approaching limit

Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.

Why this matters

JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.

Source: web.dev

C
Image Optimization
Action
14 images, 0 KB saveable
REVIEW
14 images, 0 KB saveable
Warning::
https://stories.lavanguardia.com/especial/htmlbox/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://stories.lavanguardia.com/especial/images/x... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEA... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.lavanguardia.com/files/image_449_221/u... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.lavanguardia.com/files/image_290_300/f... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cdn.qualitygames.media/iconos/logo-quiz-1.... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://stories.lavanguardia.com/especial/images/x... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://stories.lavanguardia.com/especial/images/x... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://stories.lavanguardia.com/especial/hemerote... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.lavanguardia.com/files/image_614_300/f... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.lavanguardia.com/files/image_449_221/f... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.lavanguardia.com/files/image_290_300/u... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
14 images 374 KB
0 oversized -0 KB
9 legacy format
12 missing dimensions CLS risk

Set explicit width and height to prevent CLS.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

B
JS Execution Cost
959ms total JS execution
REVIEW
959ms total JS execution
Warning::
https://www.lavanguardia.com/: 349ms CPU time
Warning::
Unattributable: 252ms CPU time
Info::
https://sdk.privacy-center.org/sdk/22ecd6bfac93de6...: 84ms CPU time
Info::
https://sdk.privacy-center.org/sdk/22ecd6bfac93de6...: 81ms CPU time
Info::
https://securepubads.g.doubleclick.net/pagead/mana...: 68ms CPU time
Warning::
Third-party scripts: 959ms (100% of total)

Main Thread Breakdown

Script Evaluation 52% Other 20% Style & Layout 13% Script Parsing & Compilation 6% Rendering 4% Parse HTML & CSS 3%
ScriptTotalScriptingParse/CompileParty
https://www.lavanguardia.com/349ms33ms4ms3rd
Unattributable252ms114ms0ms3rd
https://sdk.privacy-center.org/sdk/22ecd6bfac93de604efec0b75b2c796ee1675f92/modern/ui-web-es-web.22ecd6bfac93de604efec0b75b2c796ee1675f92.js84ms61ms5ms3rd
https://sdk.privacy-center.org/sdk/22ecd6bfac93de604efec0b75b2c796ee1675f92/modern/sdk.22ecd6bfac93de604efec0b75b2c796ee1675f92.js81ms63ms8ms3rd
https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=3109794668ms44ms14ms3rd
https://marfeelexperimentsexperienceengine.mrf.io/experimentsexperience/render?id=AC_kHo_Hy_KQYSFOvVMEBTkLQ&experimentType=HeadlineAB&version=esnext63ms61ms0ms3rd
https://static.lavanguardia.com/assets/1.6e0fff863f6e629399e6.chunk.js61ms54ms1ms3rd
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Text Compression
All text resources are compressed
PASS
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+
Font Loading
8 fonts (195 KB)
PASS
8 fonts (195 KB)
Info::
8 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

8

195 KB total

Render-blocking

0

of 8

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s 1.5 s FCP 1.1 s LCP 1.4 shttps://static.lavanguardia.com/css/fonts/v2/TiemposHeadline-Bold.woff2TiemposHeadline-Bold.woff2 https://static.lavanguardia.com/css/fonts/v2/TiemposHeadline-Bold.woff2 — 26.6 KiB — 10 ms — font-display: swaphttps://static.lavanguardia.com/css/fonts/v2/TiemposHeadline-Black.woff2TiemposHeadline-Black.w... https://static.lavanguardia.com/css/fonts/v2/TiemposHeadline-Black.woff2 — 26.1 KiB — 4 ms — font-display: swaphttps://static.lavanguardia.com/css/fonts/v2/TiemposHeadline-Regular.woff2TiemposHeadline-Regular... https://static.lavanguardia.com/css/fonts/v2/TiemposHeadline-Regular.woff2 — 27.2 KiB — 5 ms — font-display: swaphttps://static.lavanguardia.com/css/fonts/v2/TiemposHeadline-Light.woff2TiemposHeadline-Light.w... https://static.lavanguardia.com/css/fonts/v2/TiemposHeadline-Light.woff2 — 16.7 KiB — 5 ms — font-display: swaphttps://static.lavanguardia.com/css/fonts/iconsfont/iconsfont-v10.woff2iconsfont-v10.woff2 https://static.lavanguardia.com/css/fonts/iconsfont/iconsfont-v10.woff2 — 3.3 KiB — 6 ms — font-display: swaphttps://static.lavanguardia.com/css/fonts/v2/TiemposHeadline-Semibold.woff2TiemposHeadline-Semibol... https://static.lavanguardia.com/css/fonts/v2/TiemposHeadline-Semibold.woff2 — 26.3 KiB — 21 ms — font-display: swaphttps://static.lavanguardia.com/css/fonts/v2/TiemposText-Regular.woff2TiemposText-Regular.woff2 https://static.lavanguardia.com/css/fonts/v2/TiemposText-Regular.woff2 — 40.1 KiB — 23 ms — font-display: swaphttps://fonts.gstatic.com/s/librefranklin/v20/jizDREVItHgc8qDIbSTKq4XkRiUf2zcZiVbJ.woff2jizDREVItHgc8qDIbSTKq4X... https://fonts.gstatic.com/s/librefranklin/v20/jizDREVItHgc8qDIbSTKq4XkRiUf2zcZiVbJ.woff2 — 28.7 KiB — 32 ms — font-display: swap
TiemposHeadline-Bold.woff2 woff2 swap
Size 27 KB
Load time 10 ms
Start 202 ms
Risk FOUT — text flashes from fallback to web font
TiemposHeadline-Black.w... woff2 swap
Size 26 KB
Load time 4 ms
Start 222 ms
Risk FOUT — text flashes from fallback to web font
TiemposHeadline-Regular... woff2 swap
Size 27 KB
Load time 5 ms
Start 222 ms
Risk FOUT — text flashes from fallback to web font
TiemposHeadline-Light.w... woff2 swap
Size 17 KB
Load time 5 ms
Start 229 ms
Risk FOUT — text flashes from fallback to web font
iconsfont-v10.woff2 woff2 swap
Size 3 KB
Load time 6 ms
Start 229 ms
Risk FOUT — text flashes from fallback to web font
TiemposHeadline-Semibol... woff2 swap
Size 26 KB
Load time 21 ms
Start 373 ms
Risk FOUT — text flashes from fallback to web font
TiemposText-Regular.woff2 woff2 swap
Size 40 KB
Load time 23 ms
Start 374 ms
Risk FOUT — text flashes from fallback to web font
jizDREVItHgc8qDIbSTKq4X... woff2 swap
Size 29 KB
Load time 32 ms
Start 425 ms
Risk FOUT — text flashes from fallback to web font
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 Caching
All resources properly cached
PASS
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+
Critical Rendering Path
No render-blocking resources
PASS
No render-blocking resources
Info::
No render-blocking resources detected
A+
Resource Hints
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
Network Waterfall
70 requests over 1331ms
INFO
0 ms 500 ms 1.0 s 1.5 s FCP 1.1 s LCP 1.4 shttps://lavanguardia.com// https://lavanguardia.com/ — 301 — 124 B — 33 ms — h2https://www.lavanguardia.com/www.lavanguardia.com/ https://www.lavanguardia.com/ — 200 — 68.2 KiB — 60 ms — h2https://securepubads.g.doubleclick.net/tag/js/gpt.jssecurepubads.g.doubleclick.net/tag/... https://securepubads.g.doubleclick.net/tag/js/gpt.js — 200 — 34.5 KiB — 97 ms — h3https://sdk.privacy-center.org/3da070b4-2745-4eb6-8fc9-1fabe5f634e6/loader.js?target=www.lavanguardia.comsdk.privacy-center.org/3da070b4-274... https://sdk.privacy-center.org/3da070b4-2745-4eb6-8fc9-1fabe5f634e6/loader.js?target=www.lavanguardia.com — 200 — 38.1 KiB — 42 ms — h2https://rsc.lavanguardia.com/js/godo-didomix-v1001225.jsrsc.lavanguardia.com/js/godo-didomi... https://rsc.lavanguardia.com/js/godo-didomix-v1001225.js — 200 — 7.8 KiB — 35 ms — h2https://rsc.lavanguardia.com/js/godo-adsx-nt-v1001293.jsrsc.lavanguardia.com/js/godo-adsx-n... https://rsc.lavanguardia.com/js/godo-adsx-nt-v1001293.js — 200 — 119.8 KiB — 38 ms — h2https://es-config.sensic.net/s2s-web.jses-config.sensic.net/s2s-web.js https://es-config.sensic.net/s2s-web.js — 200 — 31.0 KiB — 30 ms — h2https://static.lavanguardia.com/css/c2786c3.css?1776245563static.lavanguardia.com/css/c2786c3... https://static.lavanguardia.com/css/c2786c3.css?1776245563 — 200 — 8.7 KiB — 16 ms — h2https://static.lavanguardia.com/css/602bc13.css?1776245563static.lavanguardia.com/css/602bc13... https://static.lavanguardia.com/css/602bc13.css?1776245563 — 200 — 2.4 KiB — 6 ms — h2https://static.lavanguardia.com/css/d40ce09.css?1776245563static.lavanguardia.com/css/d40ce09... https://static.lavanguardia.com/css/d40ce09.css?1776245563 — 200 — 20.7 KiB — 13 ms — h2https://static.lavanguardia.com/css/04337f4.css?1776245563static.lavanguardia.com/css/04337f4... https://static.lavanguardia.com/css/04337f4.css?1776245563 — 200 — 8.4 KiB — 12 ms — h2https://static.lavanguardia.com/css/c4f6e1d.css?1776245563static.lavanguardia.com/css/c4f6e1d... https://static.lavanguardia.com/css/c4f6e1d.css?1776245563 — 200 — 1.4 KiB — 9 ms — h2https://static.lavanguardia.com/css/7fb5b3f.css?1776245563static.lavanguardia.com/css/7fb5b3f... https://static.lavanguardia.com/css/7fb5b3f.css?1776245563 — 200 — 845 B — 10 ms — h2https://static.lavanguardia.com/css/fonts.cssstatic.lavanguardia.com/css/fonts.c... https://static.lavanguardia.com/css/fonts.css — 200 — 710 B — 30 ms — h2https://static.lavanguardia.com/css/cf80fcf.css?1776245563static.lavanguardia.com/css/cf80fcf... https://static.lavanguardia.com/css/cf80fcf.css?1776245563 — 200 — 3.3 KiB — 13 ms — h2https://www.lavanguardia.com/files/image_449_221/uploads/2026/04/21/69e782590ee17.jpegwww.lavanguardia.com/files/image_44... https://www.lavanguardia.com/files/image_449_221/uploads/2026/04/21/69e782590ee17.jpeg — 200 — 14.5 KiB — 18 ms — h2https://www.lavanguardia.com/files/image_614_300/files/fp/uploads/2026/04/21/69e766c43eca1.r_d.600-295.jpegwww.lavanguardia.com/files/image_61... https://www.lavanguardia.com/files/image_614_300/files/fp/uploads/2026/04/21/69e766c43eca1.r_d.600-295.jpeg — 200 — 16.8 KiB — 19 ms — h2https://www.lavanguardia.com/files/image_290_300/files/fp/uploads/2026/04/21/69e7b74375303.r_d.2414-2123-1006.jpegwww.lavanguardia.com/files/image_29... https://www.lavanguardia.com/files/image_290_300/files/fp/uploads/2026/04/21/69e7b74375303.r_d.2414-2123-1006.jpeg — 200 — 12.0 KiB — 21 ms — h2https://www.lavanguardia.com/files/image_449_221/files/fp/uploads/2026/04/21/69e7a6a629322.r_d.2407-884.jpegwww.lavanguardia.com/files/image_44... https://www.lavanguardia.com/files/image_449_221/files/fp/uploads/2026/04/21/69e7a6a629322.r_d.2407-884.jpeg — 200 — 21.5 KiB — 21 ms — h2https://www.lavanguardia.com/files/image_290_300/uploads/2026/04/20/69e6591de0e69.pngwww.lavanguardia.com/files/image_29... https://www.lavanguardia.com/files/image_290_300/uploads/2026/04/20/69e6591de0e69.png — 200 — 166.8 KiB — 37 ms — h2https://fonts.googleapis.com/css2?family=Libre+Franklin:wght@500;600;700&display=swapfonts.googleapis.com/css2?family=Li... https://fonts.googleapis.com/css2?family=Libre+Franklin:wght@500;600;700&display=swap — 200 — 1.1 KiB — 75 ms — h2https://static.lavanguardia.com/css/fonts/v2/TiemposHeadline-Bold.woff2static.lavanguardia.com/css/fonts/v... https://static.lavanguardia.com/css/fonts/v2/TiemposHeadline-Bold.woff2 — 200 — 26.6 KiB — 10 ms — h2https://static.lavanguardia.com/css/fonts/v2/TiemposHeadline-Black.woff2static.lavanguardia.com/css/fonts/v... https://static.lavanguardia.com/css/fonts/v2/TiemposHeadline-Black.woff2 — 200 — 26.1 KiB — 4 ms — h2https://static.lavanguardia.com/css/fonts/v2/TiemposHeadline-Regular.woff2static.lavanguardia.com/css/fonts/v... https://static.lavanguardia.com/css/fonts/v2/TiemposHeadline-Regular.woff2 — 200 — 27.2 KiB — 5 ms — h2https://static.lavanguardia.com/css/fonts/v2/TiemposHeadline-Light.woff2static.lavanguardia.com/css/fonts/v... https://static.lavanguardia.com/css/fonts/v2/TiemposHeadline-Light.woff2 — 200 — 16.7 KiB — 5 ms — h2https://static.lavanguardia.com/css/fonts/iconsfont/iconsfont-v10.woff2static.lavanguardia.com/css/fonts/i... https://static.lavanguardia.com/css/fonts/iconsfont/iconsfont-v10.woff2 — 200 — 3.3 KiB — 6 ms — h2https://static.lavanguardia.com/assets/global.6e0fff863f6e629399e6.jsstatic.lavanguardia.com/assets/glob... https://static.lavanguardia.com/assets/global.6e0fff863f6e629399e6.js — 200 — 1.4 KiB — 7 ms — h2https://rsc.lavanguardia.com/js/godo-base1x-v1000960.jsrsc.lavanguardia.com/js/godo-base1x... https://rsc.lavanguardia.com/js/godo-base1x-v1000960.js — 200 — 32.3 KiB — 12 ms — h2https://rsc.lavanguardia.com/js/accounts-v2000031.jsrsc.lavanguardia.com/js/accounts-v2... https://rsc.lavanguardia.com/js/accounts-v2000031.js — 200 — 134.6 KiB — 51 ms — 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HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
100% of JavaScript execution is third-party
First-party Third-party 959ms · 435KB · €10/mo
www.lavanguardia.com
Other
Costly
Execution 349ms
Transfer 68 KB
Monthly Cost €4/mo
Unattributable
Other
Costly
Execution 252ms
Transfer 0 KB
Monthly Cost €3/mo
sdk.privacy-center.org
Other
Optional
Execution 84ms
Transfer 55 KB
Monthly Cost €1/mo
sdk.privacy-center.org
Other
Optional
Execution 81ms
Transfer 102 KB
Unused 44%
Monthly Cost €1/mo
securepubads.g.doubleclick.net
Other
Optional
Execution 68ms
Transfer 187 KB
Unused 75%
Monthly Cost €1/mo
marfeelexperimentsexperienceengine.mrf.io
Other
Optional
Execution 63ms
Transfer 10 KB
Monthly Cost €1/mo
static.lavanguardia.com
Other
Optional
Execution 61ms
Transfer 13 KB
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • www.lavanguardia.com adds 349ms and costs ~€4/month
  • Unattributable adds 252ms and costs ~€3/month

100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.

Why this matters

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.lavanguardia.com takes 349ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

Unattributable takes 252ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

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.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

How third-party costs are calculated

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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