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Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
72
GRADE
C
FIX
6
REVIEW
2
PASS
7
INFO
2

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

Mobile Desktop
42
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.
92
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.

9.38 s

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

15.85 s

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

565 ms

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

0.000

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

9.38 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.

15.90 s

Page Load Progression

415 ms
831 ms
1.2 s
1.7 s
2.1 s
2.5 s
2.9 s
3.3 s
Checks
17
7 PASS 2 REVIEW 6 FIX
D
Page Weight Budget
Action
2.1 MB transferred, 78 requests
FIX
2.1 MB transferred, 78 requests
Info::
Page weighs 5.8 MB (2.1 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::
78 HTTP requests
Info::
Estimated 0.45 g CO2 per page load
2.1 MB / 2.4 MB budget
2.1 MB transferred
78 requests
0.45 g CO2 per page load
JavaScript 1.1 MiB 52%
Images 671.9 KiB 31%
Fonts 195.0 KiB 9%
HTML 98.1 KiB 4%
CSS 47.6 KiB 2%
Other 23.8 KiB 1%
Other 1.6 KiB 0%
Other 295 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

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 (2.1 MiB of 2.1 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Execution Cost
Action
4542ms total JS execution
FIX
4542ms total JS execution
Warning::
Unattributable: 966ms CPU time
Warning::
https://www.lavanguardia.com/: 833ms CPU time
Warning::
https://rsc.lavanguardia.com/js/godo-adsx-nt-v1001...: 559ms CPU time
Warning::
https://sdk.privacy-center.org/sdk/22ecd6bfac93de6...: 334ms CPU time
Warning::
https://sdk.privacy-center.org/sdk/22ecd6bfac93de6...: 320ms CPU time
Warning::
Third-party scripts: 4542ms (100% of total)

Main Thread Breakdown

Script Evaluation 54% Other 20% Style & Layout 11% Script Parsing & Compilation 7% Parse HTML & CSS 4%
ScriptTotalScriptingParse/CompileParty
Unattributable966ms422ms0ms3rd
https://www.lavanguardia.com/833ms184ms21ms3rd
https://rsc.lavanguardia.com/js/godo-adsx-nt-v1001293.js559ms142ms30ms3rd
https://sdk.privacy-center.org/sdk/22ecd6bfac93de604efec0b75b2c796ee1675f92/modern/ui-web-es-web.22ecd6bfac93de604efec0b75b2c796ee1675f92.js334ms241ms23ms3rd
https://sdk.privacy-center.org/sdk/22ecd6bfac93de604efec0b75b2c796ee1675f92/modern/sdk.22ecd6bfac93de604efec0b75b2c796ee1675f92.js320ms246ms40ms3rd
https://marfeelexperimentsexperienceengine.mrf.io/experimentsexperience/render?id=AC_kHo_Hy_KQYSFOvVMEBTkLQ&experimentType=HeadlineAB&version=esnext305ms271ms0ms3rd
https://static.lavanguardia.com/assets/1.6e0fff863f6e629399e6.chunk.js238ms223ms5ms3rd
https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js237ms141ms45ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-TQV75HX5129ms98ms30ms3rd
https://rsc.lavanguardia.com/js/accounts-v2000031.js127ms80ms46ms3rd

Showing top 10 of 16 scripts

F
JS Bundles
Action
31 scripts, 583 KB unused
FIX
31 scripts, 583 KB unused
Warning::
https://securepubads.g.doubleclick.net/pagead/mana...: 142 KB unused (76%)
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...: 44 KB unused (44%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 583 KB
583 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js188 KB142 KB (76%)✓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 KB44 KB (44%)✓3rd
https://static.lavanguardia.com/assets/3.6e0fff863f6e629399e6.chunk.js34 KB31 KB (91%)✓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

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
78 resources · 2.1 MB · 583 KB savings available
FIX
78 resources · 2.1 MB · 583 KB savings available
Warning::
Page weight 1.1 MB over 1MB target
Got: 2.1 MB Expected: ≤ 1 MB
Info::
~583 KB of savings available
Warning::
77 third-party resources (100% of weight)
Info::
1 resources over 200KB
78 resources · 2.1 MiB · 77 third-party 1.1 MiB over 1MB target
JavaScript 52% · 1.1 MiB
Image 31% · 672.6 KiB
Font 9% · 195.0 KiB
Document 5% · 99.4 KiB
CSS 2% · 47.6 KiB
Other 1% · 23.7 KiB

~583.5 KiB of savings available

Remove unused JavaScript: 583.5 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
Image Optimization
Action
21 images, 0 KB saveable
REVIEW
21 images, 0 KB saveable
Warning::
https://stories.lavanguardia.com/especial/hemerote... 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_150_155/u... 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://stories.lavanguardia.com/especial/htmlbox/... 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://www.lavanguardia.com/files/image_150_155/f... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.lavanguardia.com/files/image_150_155/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_464/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_464/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_464/u... 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://www.lavanguardia.com/files/image_150_155/f... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.lavanguardia.com/files/image_150_155/u... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.lavanguardia.com/files/image_150_155/u... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.lavanguardia.com/files/image_150_155/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/u... 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.
21 images 672 KB
0 oversized -0 KB
16 legacy format
19 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

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

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 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s 16.0 s FCP 9.4 s LCP 15.9 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 — 3 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 — 4 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 — 8 ms — font-display: swaphttps://fonts.gstatic.com/s/librefranklin/v20/jizDREVItHgc8qDIbSTKq4XkRiUf2zcZiVbJ.woff2jizDREVItHgc8qDIbSTKq4X... https://fonts.gstatic.com/s/librefranklin/v20/jizDREVItHgc8qDIbSTKq4XkRiUf2zcZiVbJ.woff2 — 28.7 KiB — 31 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 — 4 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 — 6 ms — font-display: swap
TiemposHeadline-Bold.woff2 woff2 swap
Size 27 KB
Load time 10 ms
Start 213 ms
Risk FOUT — text flashes from fallback to web font
TiemposHeadline-Black.w... woff2 swap
Size 26 KB
Load time 4 ms
Start 236 ms
Risk FOUT — text flashes from fallback to web font
TiemposHeadline-Regular... woff2 swap
Size 27 KB
Load time 3 ms
Start 243 ms
Risk FOUT — text flashes from fallback to web font
TiemposHeadline-Light.w... woff2 swap
Size 17 KB
Load time 4 ms
Start 243 ms
Risk FOUT — text flashes from fallback to web font
iconsfont-v10.woff2 woff2 swap
Size 3 KB
Load time 8 ms
Start 250 ms
Risk FOUT — text flashes from fallback to web font
jizDREVItHgc8qDIbSTKq4X... woff2 swap
Size 29 KB
Load time 31 ms
Start 465 ms
Risk FOUT — text flashes from fallback to web font
TiemposHeadline-Semibol... woff2 swap
Size 26 KB
Load time 4 ms
Start 466 ms
Risk FOUT — text flashes from fallback to web font
TiemposText-Regular.woff2 woff2 swap
Size 40 KB
Load time 6 ms
Start 466 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
20 hints, 0 missing preconnects
PASS
20 hints, 0 missing preconnects
Info::
Page uses 20 resource hint(s)

Current Resource Hints

preconnect
5
preload
7
dns-prefetch
8
prefetch
—

20 resource hints configured

A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
Network Waterfall
78 requests over 1363ms
INFO
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s 16.0 s FCP 9.4 s LCP 15.9 shttps://lavanguardia.com// https://lavanguardia.com/ — 301 — 124 B — 38 ms — h2https://www.lavanguardia.com/www.lavanguardia.com/ https://www.lavanguardia.com/ — 200 — 68.2 KiB — 35 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 — 123 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 — 58 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 — 48 ms — h2https://rsc.lavanguardia.com/js/godo-adsx-nt-v1001293.jsrsc.lavanguardia.com/js/godo-adsx-n... 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h2https://sdk.privacy-center.org/sdk/22ecd6bfac93de604efec0b75b2c796ee1675f92/modern/ui-web-es-web.22ecd6bfac93de604efec0b75b2c796ee1675f92.jssdk.privacy-center.org/sdk/22ecd6bf... https://sdk.privacy-center.org/sdk/22ecd6bfac93de604efec0b75b2c796ee1675f92/modern/ui-web-es-web.22ecd6bfac93de604efec0b75b2c796ee1675f92.js — 200 — 54.8 KiB — 7 ms — h3https://sb.scorecardresearch.com/beacon.jssb.scorecardresearch.com/beacon.js https://sb.scorecardresearch.com/beacon.js — 200 — 6.7 KiB — 51 ms — h2https://experiences.mrf.io/statics/inline-experiences/esnext/standalone.jsexperiences.mrf.io/statics/inline-e... https://experiences.mrf.io/statics/inline-experiences/esnext/standalone.js — 200 — 28.0 KiB — 95 ms — h3https://marfeelwidgetexperienceengine.mrf.io/widgetexperience/render.js?id=IL_Wc_Vl9a7RgmXfzlto-Oisg&lang=marfeelwidgetexperienceengine.mrf.i... https://marfeelwidgetexperienceengine.mrf.io/widgetexperience/render.js?id=IL_Wc_Vl9a7RgmXfzlto-Oisg&lang= — 200 — 1.1 KiB — 126 ms — h2https://sdk.mrf.io/statics/compass-multimedia-sdk.js?version=pr_4156sdk.mrf.io/statics/compass-multimed... https://sdk.mrf.io/statics/compass-multimedia-sdk.js?version=pr_4156 — 200 — 4.3 KiB — 23 ms — h3https://marfeelexperimentsexperienceengine.mrf.io/experimentsexperience/render?id=AC_kHo_Hy_KQYSFOvVMEBTkLQ&experimentType=HeadlineAB&version=esnextmarfeelexperimentsexperienceengine.... https://marfeelexperimentsexperienceengine.mrf.io/experimentsexperience/render?id=AC_kHo_Hy_KQYSFOvVMEBTkLQ&experimentType=HeadlineAB&version=esnext — 200 — 10.1 KiB — 124 ms — h2https://sdk.mrf.io/statics/47bd3e88b6bda15c34ce.jssdk.mrf.io/statics/47bd3e88b6bda15c... https://sdk.mrf.io/statics/47bd3e88b6bda15c34ce.js — 200 — 24.4 KiB — 26 ms — h3https://marfeelwidgetexperienceengine.mrf.io/widgetexperience/render?id=IL_Wc_Vl9a7RgmXfzlto-Oisg&lang=marfeelwidgetexperienceengine.mrf.i... https://marfeelwidgetexperienceengine.mrf.io/widgetexperience/render?id=IL_Wc_Vl9a7RgmXfzlto-Oisg&lang= — 200 — 1.2 KiB — 63 ms — h2https://www.lavanguardia.com/files/image_150_155/uploads/2026/04/21/69e7bde718a55.jpegwww.lavanguardia.com/files/image_15... https://www.lavanguardia.com/files/image_150_155/uploads/2026/04/21/69e7bde718a55.jpeg — 200 — 6.1 KiB — 6 ms — h2https://www.lavanguardia.com/files/image_150_155/files/fp/uploads/2026/04/21/69e7b4be00c21.r_d.2136-1424.jpegwww.lavanguardia.com/files/image_15... https://www.lavanguardia.com/files/image_150_155/files/fp/uploads/2026/04/21/69e7b4be00c21.r_d.2136-1424.jpeg — 200 — 5.7 KiB — 8 ms — h2https://www.lavanguardia.com/files/image_150_155/files/fp/uploads/2026/04/21/69e7d20b79a22.r_d.2486-1868.jpegwww.lavanguardia.com/files/image_15... https://www.lavanguardia.com/files/image_150_155/files/fp/uploads/2026/04/21/69e7d20b79a22.r_d.2486-1868.jpeg — 200 — 34.8 KiB — 8 ms — h2https://www.lavanguardia.com/files/image_150_155/uploads/2026/01/24/69752ae55a000.jpegwww.lavanguardia.com/files/image_15... https://www.lavanguardia.com/files/image_150_155/uploads/2026/01/24/69752ae55a000.jpeg — 200 — 7.3 KiB — 8 ms — h2https://www.lavanguardia.com/files/image_150_155/files/fp/uploads/2026/04/21/69e73003d334c.r_d.455-389-4902.jpegwww.lavanguardia.com/files/image_15... https://www.lavanguardia.com/files/image_150_155/files/fp/uploads/2026/04/21/69e73003d334c.r_d.455-389-4902.jpeg — 200 — 5.4 KiB — 9 ms — h2https://www.lavanguardia.com/files/image_150_155/uploads/2026/02/27/69a1584e2c6f0.jpegwww.lavanguardia.com/files/image_15... https://www.lavanguardia.com/files/image_150_155/uploads/2026/02/27/69a1584e2c6f0.jpeg — 200 — 5.6 KiB — 10 ms — h2https://www.lavanguardia.com/files/image_150_155/files/fp/uploads/2026/04/21/69e76833589f5.r_d.732-426-2993.jpegwww.lavanguardia.com/files/image_15... https://www.lavanguardia.com/files/image_150_155/files/fp/uploads/2026/04/21/69e76833589f5.r_d.732-426-2993.jpeg — 200 — 5.7 KiB — 11 ms — h2https://www.lavanguardia.com/favicon.icowww.lavanguardia.com/favicon.ico https://www.lavanguardia.com/favicon.ico — 200 — 727 B — 3 ms — h2https://securepubads.g.doubleclick.net/pagead/managed/dict/m202604210101/gptsecurepubads.g.doubleclick.net/page... https://securepubads.g.doubleclick.net/pagead/managed/dict/m202604210101/gpt — 200 — 23.0 KiB — 46 ms — h3
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 4542ms · 1039KB · €49/mo
Unattributable
Other
Costly
Execution 966ms
Transfer 0 KB
Monthly Cost €10/mo
www.lavanguardia.com
Other
Costly
Execution 833ms
Transfer 68 KB
Monthly Cost €9/mo
rsc.lavanguardia.com
Other
Costly
Execution 559ms
Transfer 120 KB
Unused 74%
Monthly Cost €6/mo
sdk.privacy-center.org
Other
Costly
Execution 334ms
Transfer 55 KB
Monthly Cost €4/mo
sdk.privacy-center.org
Other
Costly
Execution 320ms
Transfer 102 KB
Unused 44%
Monthly Cost €3/mo
marfeelexperimentsexperienceengine.mrf.io
Other
Costly
Execution 305ms
Transfer 10 KB
Monthly Cost €3/mo
static.lavanguardia.com
Other
Costly
Execution 238ms
Transfer 13 KB
Monthly Cost €3/mo
securepubads.g.doubleclick.net
Other
Costly
Execution 237ms
Transfer 188 KB
Unused 76%
Monthly Cost €3/mo
Google Tag Manager
Tag Manager
Optional
Execution 129ms
Transfer 119 KB
Unused 56%
Monthly Cost €1/mo
rsc.lavanguardia.com
Other
Optional
Execution 127ms
Transfer 135 KB
Unused 84%
Monthly Cost €1/mo
experiences.mrf.io
Other
Optional
Execution 107ms
Transfer 28 KB
Monthly Cost €1/mo
es-config.sensic.net
Other
Optional
Execution 103ms
Transfer 31 KB
Monthly Cost €1/mo
securepubads.g.doubleclick.net
Other
Optional
Execution 89ms
Transfer 35 KB
Monthly Cost €1/mo
service.wemass.com
Other
Optional
Execution 77ms
Transfer 41 KB
Unused 71%
Monthly Cost €1/mo
static.lavanguardia.com
Other
Optional
Execution 66ms
Transfer 36 KB
Unused 60%
Monthly Cost €1/mo
sdk.mrf.io
Other
Optional
Execution 52ms
Transfer 60 KB
Unused 46%
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • Unattributable adds 966ms and costs ~€10/month
  • www.lavanguardia.com adds 833ms and costs ~€9/month
  • rsc.lavanguardia.com adds 559ms and costs ~€6/month
  • sdk.privacy-center.org adds 334ms and costs ~€4/month
  • sdk.privacy-center.org adds 320ms and costs ~€3/month
  • marfeelexperimentsexperienceengine.mrf.io adds 305ms and costs ~€3/month
  • static.lavanguardia.com adds 238ms and costs ~€3/month
  • securepubads.g.doubleclick.net adds 237ms 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

Unattributable takes 966ms 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

www.lavanguardia.com takes 833ms 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

rsc.lavanguardia.com takes 559ms 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

74% of rsc.lavanguardia.com'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

sdk.privacy-center.org takes 334ms 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

sdk.privacy-center.org takes 320ms 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

marfeelexperimentsexperienceengine.mrf.io takes 305ms 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

static.lavanguardia.com takes 238ms 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

securepubads.g.doubleclick.net takes 237ms 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

76% 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

56% of Google Tag Manager'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

84% of rsc.lavanguardia.com'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

71% of service.wemass.com'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

60% of static.lavanguardia.com'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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