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https://www.corriere.it

Performance

· 16 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
70
GRADE
C
FIX
4
REVIEW
2
PASS
8
INFO
2

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

Mobile Desktop
27
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
68
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
73
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
85
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.

5.45 s

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

25.80 s

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

2.74 s

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

0.003

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

11.66 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.

35.98 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
16
8 PASS 2 REVIEW 4 FIX
F
Page Weight Budget
Action
5.7 MB transferred, 285 requests
FIX
5.7 MB transferred, 285 requests
Critical::
Page weighs 16.6 MB (5.7 MB transferred)
Warning::
JavaScript is 2.7 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 2.7 MB
Warning::
Images are 2.3 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 2.3 MB
Info::
Fonts are 270 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 270 KB
Info::
CSS is 216 KB — consider purging unused styles
Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.
Got: 216 KB
Warning::
285 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 1.2 g CO2 per page load
5.7 MB / 2.4 MB budget
5.7 MB transferred
285 requests
1.2 g CO2 per page load
JavaScript 2.7 MiB 47%
Images 2.3 MiB 40%
Fonts 270.0 KiB 5%
CSS 216.5 KiB 4%
HTML 215.1 KiB 4%
Other 29.0 KiB 1%
Other 24.6 KiB 0%
Other 9.3 KiB 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Over budget

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

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Why this matters

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.

Why this matters

Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).

Source: web.dev font loading

Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.

Why this matters

CSS bundle is large — purge unused styles (PurgeCSS, Tailwind JIT) to reduce CSS payload.

Source: web.dev

Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.

Why this matters

High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.

Source: web.dev

D
Third-Party Impact
Action
97% third-party, 0 ms blocking
FIX
97% third-party, 0 ms blocking
Warning::
Third-party code accounts for 97% of page weight (5.5 MiB of 5.7 MiB)
Info::
Third-party blocking time is low (0 ms)
97%
First-party Third-party
F
JS Execution Cost
Action
12734ms total JS execution
FIX
12734ms total JS execution
Warning::
https://www.corriere.it/: 2409ms CPU time
Warning::
Unattributable: 2163ms CPU time
Warning::
https://components2.corriereobjects.it/rcs_orchest...: 927ms CPU time
Warning::
https://components2.corriereobjects.it/rcs_mc_widg...: 702ms CPU time
Warning::
https://components2.corriereobjects.it/rcs_iabtfc2...: 634ms CPU time
Warning::
Third-party scripts: 10325ms (81% of total)

Main Thread Breakdown

Script Evaluation 50% Other 20% Style & Layout 15% Script Parsing & Compilation 9%
ScriptTotalScriptingParse/CompileParty
https://www.corriere.it/2409ms187ms23ms1st
Unattributable2163ms93ms0ms3rd
https://components2.corriereobjects.it/rcs_orchestrator/v4/index.min.js?v=f904f6e9973ccdaa5ef9869ac6362217927ms782ms3ms3rd
https://components2.corriereobjects.it/rcs_mc_widget_FE/v0/20260126155348476.extra/chunks/4.7b9c44a0.min.js702ms390ms30ms3rd
https://components2.corriereobjects.it/rcs_iabtfc2/v5/index.min.js634ms414ms171ms3rd
https://components2.corriereobjects.it/rcs_video-manager/v3/index.min.js?v=f64996f5f7ac5c4c7a4d3c60675aa84b484ms389ms57ms3rd
https://cdn.permutive.app/6ccc4e64-d4bc-4642-97b6-db50a75d8a5d-web.js429ms217ms113ms3rd
https://cdn.tinypass.com/api/piano.js?v=1409ms272ms39ms3rd
https://micro.rubiconproject.com/prebid/dynamic/10814.js406ms346ms52ms3rd
https://components2.corriereobjects.it/rcs_tag-manager/v1/20260407132501530.extra/chunks/Corriere-Adobe-feature.min.js399ms360ms9ms3rd

Showing top 10 of 38 scripts

F
JS Bundles
Action
121 scripts, 890 KB unused
FIX
121 scripts, 890 KB unused
Warning::
https://securepubads.g.doubleclick.net/pagead/mana...: 138 KB unused (75%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://imasdk.googleapis.com/js/sdkloader/ima3.js...: 108 KB unused (73%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://micro.rubiconproject.com/prebid/dynamic/10...: 98 KB unused (57%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=DC-992...: 77 KB unused (60%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.tinypass.com/api/piano.js?v=1: 69 KB unused (52%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 890 KB
890 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604020101/pubads_impl.js183 KB138 KB (75%)✓3rd
https://imasdk.googleapis.com/js/sdkloader/ima3.js?v=1148 KB108 KB (73%)✓3rd
https://micro.rubiconproject.com/prebid/dynamic/10814.js173 KB98 KB (57%)✓3rd
https://www.googletagmanager.com/gtag/js?id=DC-9927244130 KB77 KB (60%)✓3rd
https://cdn.tinypass.com/api/piano.js?v=1132 KB69 KB (52%)✓3rd
https://components2.corriereobjects.it/rcs_video-manager/v3/index.min.js?v=f64996f5f7ac5c4c7a4d3c60675aa84b96 KB63 KB (65%)✓3rd
https://components2.corriereobjects.it/rcs_mc_widget_FE/v0/index.min.js146 KB59 KB (41%)✓3rd
https://c.amazon-adsystem.com/aax2/apstag.js90 KB50 KB (56%)✓3rd
https://cdn-gl.imrworldwide.com/novms/js/2/nlsSDK600.bundle.min.js73 KB39 KB (54%)✓3rd
https://cdn.permutive.app/6ccc4e64-d4bc-4642-97b6-db50a75d8a5d-web.js218 KB39 KB (18%)✓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

C
Image Optimization
Action
102 images, 0 KB saveable
REVIEW
102 images, 0 KB saveable
Warning::
https://images2.corriereobjects.it/images/editoria... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images2.corriereobjects.it/infografiche/te... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images2.corriereobjects.it/images/editoria... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images2.corriereobjects.it/infografiche/te... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images2.corriereobjects.it/includes_grafic... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images2.corriereobjects.it/images/editoria... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images2.corriereobjects.it/infografiche/te... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://components2.corriereobjects.it/rcs_cor_log... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images2.corriereobjects.it/infografiche/te... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images2.corriereobjects.it/infografiche/te... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images2.corriereobjects.it/infografiche/te... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images2.corriereobjects.it/infografiche/te... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images2.corriereobjects.it/images/editoria... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images2.corriereobjects.it/methode_image/C... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images2.corriereobjects.it/infografiche/te... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://components2.corriereobjects.it/rcs_cor_cor... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images2.corriereobjects.it/methode_image/C... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images2.corriereobjects.it/images/speciali... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images2.corriereobjects.it/images/speciali... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images2.corriereobjects.it/methode_image/C... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images2.corriereobjects.it/images/editoria... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images2.corriereobjects.it/images/editoria... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images2.corriereobjects.it/infografiche/te... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images2.corriereobjects.it/methode_image/C... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
102 images 2.3 MB
0 oversized -0 KB
95 legacy format
24 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

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
14 fonts (270 KB)
PASS
14 fonts (270 KB)
Info::
14 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

14

270 KB total

Render-blocking

0

of 14

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 18.0 s 20.0 s 22.0 s 24.0 s 26.0 s FCP 5.4 s LCP 25.8 shttps://components2.corriereobjects.it/rcs_cor_corriere-layout/v2/corriere-common/assets/fonts/corriere-icon.ttf?v=26459942d694d25c45e6a8328964a957corriere-icon.ttf https://components2.corriereobjects.it/rcs_cor_corriere-layout/v2/corriere-common/assets/fonts/corriere-icon.ttf?v=26459942d694d25c45e6a8328964a957 — 17.8 KiB — 0 ms — font-display: swaphttps://components2.corriereobjects.it/rcs_cor_corriere-layout/v2/corriere-common/assets/fonts/s/solferino/SolferinoDisplay-Bold.woff2?v=614c3571ad3a1efad1cce91a3dc60649SolferinoDisplay-Bold.w... https://components2.corriereobjects.it/rcs_cor_corriere-layout/v2/corriere-common/assets/fonts/s/solferino/SolferinoDisplay-Bold.woff2?v=614c3571ad3a1efad1cce91a3dc60649 — 16.7 KiB — 0 ms — font-display: swaphttps://components2.corriereobjects.it/rcs_cor_corriere-layout/v2/corriere-common/assets/fonts/s/roboto/v18/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2?v=ece6673e477b4d7aca12f04dace5ed60KFOmCnqEu92Fr1Mu4mxKKTU... https://components2.corriereobjects.it/rcs_cor_corriere-layout/v2/corriere-common/assets/fonts/s/roboto/v18/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2?v=ece6673e477b4d7aca12f04dace5ed60 — 11.0 KiB — 0 ms — font-display: swaphttps://components2.corriereobjects.it/rcs_cor_corriere-layout/v2/corriere-common/assets/fonts/s/roboto/v18/KFOlCnqEu92Fr1MmEU9fBBc4AMP6lQ.woff2?v=709f6f90c7d493cd16b8cd087df492abKFOlCnqEu92Fr1MmEU9fBBc... https://components2.corriereobjects.it/rcs_cor_corriere-layout/v2/corriere-common/assets/fonts/s/roboto/v18/KFOlCnqEu92Fr1MmEU9fBBc4AMP6lQ.woff2?v=709f6f90c7d493cd16b8cd087df492ab — 11.0 KiB — 0 ms — font-display: swaphttps://components2.corriereobjects.it/rcs_cor_corriere-layout/v2/corriere-common/assets/fonts/s/roboto/v18/KFOlCnqEu92Fr1MmWUlfBBc4AMP6lQ.woff2?v=0b81348c81e06b7cb84c7856e13fdb4cKFOlCnqEu92Fr1MmWUlfBBc... https://components2.corriereobjects.it/rcs_cor_corriere-layout/v2/corriere-common/assets/fonts/s/roboto/v18/KFOlCnqEu92Fr1MmWUlfBBc4AMP6lQ.woff2?v=0b81348c81e06b7cb84c7856e13fdb4c — 11.0 KiB — 0 ms — font-display: swaphttps://components2.corriereobjects.it/rcs_cor_corriere-layout/v2/corriere-common/assets/fonts/s/solferino/SolferinoDisplay-LightItalic.woff2?v=881b82db9959d574e58322aacf196c3fSolferinoDisplay-LightI... https://components2.corriereobjects.it/rcs_cor_corriere-layout/v2/corriere-common/assets/fonts/s/solferino/SolferinoDisplay-LightItalic.woff2?v=881b82db9959d574e58322aacf196c3f — 15.5 KiB — 0 ms — font-display: swaphttps://components2.corriereobjects.it/rcs_cor_corriere-layout/v2/corriere-common/assets/fonts/corriere-icon.ttf?v=22c529db0ee3209225c36a2722c6046ecorriere-icon.ttf https://components2.corriereobjects.it/rcs_cor_corriere-layout/v2/corriere-common/assets/fonts/corriere-icon.ttf?v=22c529db0ee3209225c36a2722c6046e — 17.7 KiB — 0 ms — font-display: swaphttps://components2.corriereobjects.it/rcs_cor_corriere-layout/v2/corriere-common/assets/fonts/s/solferino/solferinotext-regular-webfont.woff2?v=9a201466941a75a748dbe7ee4ff6d8a7solferinotext-regular-w... https://components2.corriereobjects.it/rcs_cor_corriere-layout/v2/corriere-common/assets/fonts/s/solferino/solferinotext-regular-webfont.woff2?v=9a201466941a75a748dbe7ee4ff6d8a7 — 27.2 KiB — 0 ms — font-display: swaphttps://components2.corriereobjects.it/rcs_cor_corriere-layout/v2/corriere-common/assets/fonts/s/solferino/SolferinoDisplay-Regular.woff2?v=bc36c2a4690eb1c6c122d6f144b13474SolferinoDisplay-Regula... https://components2.corriereobjects.it/rcs_cor_corriere-layout/v2/corriere-common/assets/fonts/s/solferino/SolferinoDisplay-Regular.woff2?v=bc36c2a4690eb1c6c122d6f144b13474 — 16.8 KiB — 0 ms — font-display: swaphttps://components2.corriereobjects.it/rcs_cor_corriere-layout/v2/corriere-common/assets/fonts/s/solferino/solferinotext-bold-webfont.woff2?v=7f83c381ab704ada796e2a8898297464solferinotext-bold-webf... https://components2.corriereobjects.it/rcs_cor_corriere-layout/v2/corriere-common/assets/fonts/s/solferino/solferinotext-bold-webfont.woff2?v=7f83c381ab704ada796e2a8898297464 — 26.6 KiB — 0 ms — font-display: swaphttps://components2.corriereobjects.it/rcs_cor_corriere-layout/v2/corriere-common/assets/fonts/s/solferino/solferinodisplaylight.woff2?v=33c7c1c4bc73eea221eeef97b79409ffsolferinodisplaylight.w... https://components2.corriereobjects.it/rcs_cor_corriere-layout/v2/corriere-common/assets/fonts/s/solferino/solferinodisplaylight.woff2?v=33c7c1c4bc73eea221eeef97b79409ff — 19.1 KiB — 0 ms — font-display: swaphttps://components2.corriereobjects.it/rcs_cor_corriere-layout/v2/corriere-common/assets/fonts/s/brera/brecnrg-webfont.woff2?v=4b4427411f50d29e4d8e7b3b0796f129brecnrg-webfont.woff2 https://components2.corriereobjects.it/rcs_cor_corriere-layout/v2/corriere-common/assets/fonts/s/brera/brecnrg-webfont.woff2?v=4b4427411f50d29e4d8e7b3b0796f129 — 19.7 KiB — 0 ms — font-display: swaphttps://components2.corriereobjects.it/rcs_cor_corriere-layout/v2/corriere-common/assets/fonts/corriere-icon.ttf?v=608c4c53e8b4663d5d202132d6e2cd4fcorriere-icon.ttf https://components2.corriereobjects.it/rcs_cor_corriere-layout/v2/corriere-common/assets/fonts/corriere-icon.ttf?v=608c4c53e8b4663d5d202132d6e2cd4f — 17.8 KiB — 0 ms — font-display: swaphttps://fonts.gstatic.com/s/roboto/v51/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBA.woff2KFO7CnqEu92Fr1ME7kSn66a... https://fonts.gstatic.com/s/roboto/v51/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBA.woff2 — 42.2 KiB — 0 ms — font-display: swap
corriere-icon.ttf ttf swap
Size 18 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
SolferinoDisplay-Bold.w... woff2 swap
Size 17 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
KFOmCnqEu92Fr1Mu4mxKKTU... woff2 swap
Size 11 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
KFOlCnqEu92Fr1MmEU9fBBc... woff2 swap
Size 11 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
KFOlCnqEu92Fr1MmWUlfBBc... woff2 swap
Size 11 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
SolferinoDisplay-LightI... woff2 swap
Size 16 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
corriere-icon.ttf ttf swap
Size 18 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
solferinotext-regular-w... woff2 swap
Size 27 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
SolferinoDisplay-Regula... woff2 swap
Size 17 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
solferinotext-bold-webf... woff2 swap
Size 27 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
solferinodisplaylight.w... woff2 swap
Size 19 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
brecnrg-webfont.woff2 woff2 swap
Size 20 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
corriere-icon.ttf ttf swap
Size 18 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
KFO7CnqEu92Fr1ME7kSn66a... woff2 swap
Size 42 KB
Load time 0 ms
Start 0 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)

Fixing the unchecked items could save ~16 KB and ~32 ms

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
19 hints, 0 missing preconnects
PASS
19 hints, 0 missing preconnects
Info::
Page uses 19 resource hint(s)

Current Resource Hints

preconnect
9
preload
10
dns-prefetch
—
prefetch
—

19 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
A+
HTTP Caching
max-age=2 (2 seconds)
PASS
max-age=2 (2 seconds)
Info::
Cache-Control header is set
Got: max-age=2, public, s-maxage=5
Info::
Effective TTL: 2 seconds (max-age=2)
Info::
CDN TTL: 5 seconds (s-maxage=5)
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

max-age=2, public, s-maxage=5

DirectiveValueMeaning
max-age2Cache for 2 seconds
public—Any cache may store this response
s-maxage5CDN caches for 5 seconds
Effective TTL: 2 seconds
Network Waterfall
285 requests over 0ms
INFO

Performance analysis not available for this result.

Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
81% of JavaScript execution is third-party
First-party Third-party 10325ms · 2376KB · €112/mo
Unattributable
Other
Costly
Execution 2163ms
Transfer 0 KB
Monthly Cost €23/mo
components2.corriereobjects.it
Other
Costly
Execution 927ms
Transfer 10 KB
Monthly Cost €10/mo
components2.corriereobjects.it
Other
Costly
Execution 702ms
Transfer 38 KB
Monthly Cost €8/mo
components2.corriereobjects.it
Other
Costly
Execution 634ms
Transfer 200 KB
Unused 13%
Monthly Cost €7/mo
components2.corriereobjects.it
Other
Costly
Execution 484ms
Transfer 96 KB
Unused 65%
Monthly Cost €5/mo
cdn.permutive.app
Other
Costly
Execution 429ms
Transfer 218 KB
Unused 18%
Monthly Cost €5/mo
cdn.tinypass.com
Other
Costly
Execution 409ms
Transfer 132 KB
Unused 52%
Monthly Cost €4/mo
micro.rubiconproject.com
Other
Costly
Execution 406ms
Transfer 173 KB
Unused 57%
Monthly Cost €4/mo
components2.corriereobjects.it
Other
Costly
Execution 399ms
Transfer 25 KB
Monthly Cost €4/mo
c.amazon-adsystem.com
Other
Costly
Execution 242ms
Transfer 90 KB
Unused 56%
Monthly Cost €3/mo
securepubads.g.doubleclick.net
Other
Costly
Execution 240ms
Transfer 183 KB
Unused 75%
Monthly Cost €3/mo
cdn-gl.imrworldwide.com
Other
Costly
Execution 234ms
Transfer 73 KB
Unused 54%
Monthly Cost €3/mo
components2.corriereobjects.it
Other
Costly
Execution 223ms
Transfer 146 KB
Unused 41%
Monthly Cost €2/mo
cdn.cxense.com
Other
Costly
Execution 209ms
Transfer 6 KB
Monthly Cost €2/mo
fundingchoicesmessages.google.com
Other
Costly
Execution 208ms
Transfer 70 KB
Unused 51%
Monthly Cost €2/mo
components2.corriereobjects.it
Other
Optional
Execution 196ms
Transfer 37 KB
Monthly Cost €2/mo
Google Tag Manager
Tag Manager
Optional
Execution 182ms
Transfer 130 KB
Unused 60%
Monthly Cost €2/mo
components2.corriereobjects.it
Other
Optional
Execution 179ms
Transfer 9 KB
Monthly Cost €2/mo
cdn.sophi.io
Other
Optional
Execution 162ms
Transfer 38 KB
Monthly Cost €2/mo
securepubads.g.doubleclick.net
Other
Optional
Execution 158ms
Transfer 34 KB
Monthly Cost €2/mo
cdn.cxense.com
Other
Optional
Execution 144ms
Transfer 38 KB
Unused 58%
Monthly Cost €2/mo
components2.corriereobjects.it
Other
Optional
Execution 126ms
Transfer 57 KB
Monthly Cost €1/mo
components2.corriereobjects.it
Other
Optional
Execution 126ms
Transfer 8 KB
Monthly Cost €1/mo
jsDelivr
CDN
Optional
Execution 117ms
Transfer 40 KB
Unused 61%
Monthly Cost €1/mo
api-esp.piano.io
Other
Optional
Execution 115ms
Transfer 28 KB
Monthly Cost €1/mo
imasdk.googleapis.com
Other
Optional
Execution 109ms
Transfer 148 KB
Unused 73%
Monthly Cost €1/mo
components2.corriereobjects.it
Other
Optional
Execution 102ms
Transfer 10 KB
Monthly Cost €1/mo
static.chartbeat.com
Other
Optional
Execution 91ms
Transfer 10 KB
Monthly Cost €1/mo
components2.corriereobjects.it
Other
Optional
Execution 81ms
Transfer 207 KB
Monthly Cost €1/mo
cdn1.anonymised.io
Other
Optional
Execution 79ms
Transfer 24 KB
Monthly Cost €1/mo
components2.corriereobjects.it
Other
Optional
Execution 72ms
Transfer 19 KB
Monthly Cost €1/mo
components2.corriereobjects.it
Other
Optional
Execution 72ms
Transfer 5 KB
Monthly Cost €1/mo
secure.cdn.fastclick.net
Other
Optional
Execution 71ms
Transfer 22 KB
Monthly Cost €1/mo
components2.corriereobjects.it
Other
Optional
Execution 62ms
Transfer 21 KB
Monthly Cost €1/mo
components2.corriereobjects.it
Other
Optional
Execution 61ms
Transfer 2 KB
Monthly Cost €1/mo
websdk.appsflyer.com
Other
Optional
Execution 58ms
Transfer 16 KB
Monthly Cost €1/mo
components2.corriereobjects.it
Other
Optional
Execution 51ms
Transfer 10 KB
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • Unattributable adds 2163ms and costs ~€23/month
  • components2.corriereobjects.it adds 927ms and costs ~€10/month
  • components2.corriereobjects.it adds 702ms and costs ~€8/month
  • components2.corriereobjects.it adds 634ms and costs ~€7/month
  • components2.corriereobjects.it adds 484ms and costs ~€5/month
  • cdn.permutive.app adds 429ms and costs ~€5/month
  • cdn.tinypass.com adds 409ms and costs ~€4/month
  • micro.rubiconproject.com adds 406ms and costs ~€4/month
  • components2.corriereobjects.it adds 399ms and costs ~€4/month
  • c.amazon-adsystem.com adds 242ms and costs ~€3/month
  • securepubads.g.doubleclick.net adds 240ms and costs ~€3/month
  • cdn-gl.imrworldwide.com adds 234ms and costs ~€3/month
  • components2.corriereobjects.it adds 223ms and costs ~€2/month
  • cdn.cxense.com adds 209ms and costs ~€2/month
  • fundingchoicesmessages.google.com adds 208ms and costs ~€2/month

81% 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 2163ms 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

components2.corriereobjects.it takes 927ms 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

components2.corriereobjects.it takes 702ms 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

components2.corriereobjects.it takes 634ms 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

components2.corriereobjects.it takes 484ms 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

65% of components2.corriereobjects.it'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

cdn.permutive.app takes 429ms 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

cdn.tinypass.com takes 409ms 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

52% of cdn.tinypass.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

micro.rubiconproject.com takes 406ms 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

57% of micro.rubiconproject.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

components2.corriereobjects.it takes 399ms 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

c.amazon-adsystem.com takes 242ms 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

56% of c.amazon-adsystem.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

securepubads.g.doubleclick.net takes 240ms 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

cdn-gl.imrworldwide.com takes 234ms 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

54% of cdn-gl.imrworldwide.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

components2.corriereobjects.it takes 223ms 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

cdn.cxense.com takes 209ms 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

fundingchoicesmessages.google.com takes 208ms 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

51% of fundingchoicesmessages.google.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 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

58% of cdn.cxense.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

61% of jsDelivr'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

73% of imasdk.googleapis.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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