Lighthouse Mobile

· 0 checks — Mobile Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Detailed Report

Audit breakdown by category with detailed findings.

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling

Why this matters

Performance issues directly impact user engagement and conversion rates.

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Request	Cache TTL	Transfer Size
/etc.clientlibs/enicom/clientlibs/clientlib-dependencies....	300.0 s	502.9 KiB
/etc.clientlibs/enicom/clientlibs/clientlib-site.lc-18a61...	300.0 s	185.2 KiB
/etc.clientlibs/enicom/clientlibs/clientlib-site.lc-19154...	300.0 s	173.3 KiB
/is/image/eni/hero-triangolo-tecnologico:horizontal-4-3?&...	35985.0 s	221.2 KiB
/is/image/eni/hero-lancio-enifor-01:horizontal-4-3?&wid=1...	35985.0 s	115.0 KiB
cdn.cookielaw.org/scripttemplates/202606.2.0/otBannerSdk.js	86400.0 s	136.6 KiB
/is/image/eni/hero-visione-hub-gas:square-1-1?&wid=816&he...	35985.0 s	91.9 KiB
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	120.0 s	51.3 KiB
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	120.0 s	49.6 KiB
/is/image/eni/hero-azioni-2026:square-1-1?&wid=816&hei=81...	35985.0 s	83.1 KiB
/is/image/eni/hpc7-0:square-1-1?&wid=816&hei=816&fit=crop...	35985.0 s	79.3 KiB
/etc.clientlibs/enicom/clientlibs/clientlib-dependencies....	300.0 s	44.7 KiB
/is/image/eni/hero-azienda:horizontal-4-3?&wid=408&hei=32...	35985.0 s	71.0 KiB
/is/image/eni/palazzo-mattei-roma-04:horizontal-4-3?&wid=...	35985.0 s	62.2 KiB
/is/image/eni/hero-visione-eni-1:square-1-1?&wid=816&hei=...	35985.0 s	60.8 KiB
/is/image/eni/hero-pubblicazioni-editoriali:horizontal-4-...	35985.0 s	56.9 KiB
/is/image/eni/hero-attivita-mondo-eni-1:square-1-1?&wid=8...	35985.0 s	55.1 KiB
/is/image/eni/hero-prodotti:square-1-1?&wid=816&hei=816&f...	35985.0 s	54.5 KiB
/is/image/eni/neutralita-tec:square-1-1?&wid=816&hei=816&...	35985.0 s	50.3 KiB
/is/image/eni/hero-sostenibilita-2024:horizontal-4-3?&wid...	35985.0 s	35.3 KiB
/is/image/eni/hero-azioni-2026:horizontal-4-3?&wid=408&he...	35985.0 s	34.8 KiB
/is/image/eni/wer-2026:horizontal-4-3?&wid=1352&hei=1014&...	35985.0 s	32.3 KiB
/is/image/eni/hero-prodotti-casa:horizontal-4-3?&wid=408&...	35984.0 s	31.4 KiB
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	120.0 s	14.3 KiB
/is/image/eni/hero-visione-eni:horizontal-4-3?&wid=408&he...	35985.0 s	25.0 KiB
/is/image/eni/hero-prodotti:horizontal-4-3?&wid=408&hei=3...	35985.0 s	21.7 KiB
/is/image/eni/hero-taleo-carriere-1:horizontal-4-3?&wid=4...	35985.0 s	21.0 KiB
/is/image/eni/hero-carriere-master:horizontal-4-3?&wid=40...	35985.0 s	20.5 KiB
/is/image/eni/hero-attivita-mondo-eni-1:horizontal-4-3?&w...	35985.0 s	18.1 KiB
/is/image/eni/hero-investor-01:horizontal-4-3?&wid=408&he...	35985.0 s	17.9 KiB
/is/image/eni/hero-lancio-enifor-eng-01:horizontal-4-3?&w...	35985.0 s	17.4 KiB
/is/image/eni/cover-Q1-2026:horizontal-4-3?&wid=408&hei=3...	35985.0 s	16.0 KiB
/is/image/eni/hero-modello-satellitare:horizontal-4-3?&wi...	35985.0 s	12.1 KiB
www.eni.com/content/dam/enicom/images/loghi/logoEni.svg	120.0 s	6.6 KiB
www.eni.com/content/dam/enicom/images/loghi/logoEniFooter.svg	120.0 s	6.4 KiB
/is/image/eni/hero-regole-governance-1:horizontal-4-3?&wi...	35985.0 s	10.6 KiB
siteimproveanalytics.com/js/siteanalyze_6108806.js	86400.0 s	13.4 KiB
/tools/common/eurolandiframeautoheight/eurolandtoolsinteg...	600.0 s	5.0 KiB
/is/image/eni/hero-storia-marchio:horizontal-4-3?&wid=408...	35984.0 s	8.3 KiB
cdn.cookielaw.org/scripttemplates/otSDKStub.js	86400.0 s	9.1 KiB
/etc.clientlibs/core/wcm/components/tabs/v1/tabs/clientli...	300.0 s	2.7 KiB
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	120.0 s	2.0 KiB
www.eni.com/content/dam/enicom/images/icone/Facebook_new_footer.png	120.0 s	1.8 KiB
www.eni.com/content/dam/enicom/images/loghi/logo-energIA.svg	120.0 s	1.8 KiB
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	120.0 s	1.3 KiB
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	91.0 s	1.3 KiB
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	92.0 s	1.3 KiB
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	120.0 s	1.3 KiB
www.eni.com/content/dam/enicom/images/icone/social_instagram_32_hover.svg	120.0 s	1.2 KiB
www.eni.com/content/dam/enicom/images/icone/LinkedIn_new_footer.svg	120.0 s	1.1 KiB
/etc.clientlibs/core/wcm/components/commons/site/clientli...	300.0 s	1.1 KiB
cdn.cookielaw.org/logos/static/powered_by_logo.svg	86400.0 s	2.7 KiB
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	120.0 s	1.1 KiB
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	120.0 s	1.0 KiB
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	120.0 s	1.0 KiB
/logos/5014c41b-2ad7-4610-8bb1-441fce8b95e1/019a2b6b-aa98...	86400.0 s	2.5 KiB
www.eni.com/content/dam/enicom/images/icone/X_new_footer.svg	120.0 s	1.0 KiB
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	120.0 s	1011 B
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	120.0 s	974 B
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	91.0 s	960 B
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	120.0 s	957 B
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	120.0 s	956 B
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	120.0 s	950 B
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	120.0 s	946 B
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	120.0 s	927 B
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	120.0 s	919 B
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	120.0 s	918 B
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	120.0 s	918 B
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	120.0 s	917 B
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	4.0 s	902 B
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	120.0 s	912 B
www.eni.com/content/dam/enicom/images/icone/Instagram_new_footer.png	120.0 s	905 B
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	120.0 s	901 B
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	84.0 s	867 B
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	91.0 s	859 B
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	120.0 s	861 B
rum.hlx.page/.rum/@adobe/helix-rum-js@%5E2/dist/micro.js	3600.0 s	1.0 KiB
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	120.0 s	846 B
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	120.0 s	846 B
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	120.0 s	845 B
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	84.0 s	839 B
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	84.0 s	839 B
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	120.0 s	841 B
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	120.0 s	826 B
/etc.clientlibs/core/wcm/components/tabs/v1/tabs/clientli...	300.0 s	847 B
www.eni.com/content/dam/enicom/images/icone/YouTube_new_footer.png	120.0 s	822 B
www.eni.com/content/dam/enicom/images/icone/social_linkedin_32_hover.svg	120.0 s	817 B
www.eni.com/content/dam/enicom/images/icone/social_youtube_32_hover.svg	120.0 s	738 B
www.eni.com/content/dam/enicom/images/icone/social_facebook_32_hover.svg	120.0 s	684 B
www.eni.com/content/dam/enicom/images/icone/social_x_32_hover.svg	120.0 s	674 B
www.eni.com/content/dam/enicom/images/icone/Icon_close_blue_24.svg	120.0 s	635 B

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]

items: [map[reflowTime:59.821 source:map[column:56 line:5448 type:source-location url:https://www.eni.com/etc.clientlibs/enicom/clientlibs/clientlib-site.lc-18a616ff409165b497ab8690a5caea76-lc.min.js urlProvider:network]]]

headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]

items: [map[reflowTime:59.821 source:map[column:12 line:5352 type:source-location url:https://www.eni.com/etc.clientlibs/enicom/clientlibs/clientlib-site.lc-18a616ff409165b497ab8690a5caea76-lc.min.js urlProvider:network]]]

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Resource Size	Est Savings
Connection network in servers data center room storage systems 3D rendering `li#splide02-slide03 > div.splide-content > picture > img.image`	/is/image/eni/hero-triangolo-tecnologico:horizontal-4-3?&...	220.7 KiB	200.0 KiB
Woman sitting and working on a laptop with the ‘Eni for 2025 – Lead the Change’… `li#splide02-slide02 > div.splide-content > picture > img.image`	/is/image/eni/hero-lancio-enifor-01:horizontal-4-3?&wid=1...	114.6 KiB	100.2 KiB
Industrial ship in the ocean with digital overlay model `article > a > picture > img`	/is/image/eni/hero-visione-hub-gas:square-1-1?&wid=816&he...	91.5 KiB	71.6 KiB
Worker on board a ship carrying gas `article > a > picture > img`	/is/image/eni/hero-azioni-2026:square-1-1?&wid=816&hei=81...	82.7 KiB	64.8 KiB
article > a > picture > img `article > a > picture > img`	/is/image/eni/hpc7-0:square-1-1?&wid=816&hei=816&fit=crop...	78.9 KiB	61.8 KiB
Technician holding i-pad inside the HPC6 `article > a > picture > img`	/is/image/eni/hero-visione-eni-1:square-1-1?&wid=816&hei=...	60.4 KiB	47.3 KiB
Man and woman look at the world map inside the office `article > a > picture > img`	/is/image/eni/hero-attivita-mondo-eni-1:square-1-1?&wid=8...	54.7 KiB	42.8 KiB
Working group sitting around the table in the office `article > a > picture > img`	/is/image/eni/hero-prodotti:square-1-1?&wid=816&hei=816&f...	54.1 KiB	42.4 KiB
neutralità tecnologicia `article > a > picture > img`	/is/image/eni/neutralita-tec:square-1-1?&wid=816&hei=816&...	49.9 KiB	39.1 KiB
`li#splide02-slide01 > div.splide-content > picture > img.image`	/is/image/eni/wer-2026:horizontal-4-3?&wid=1352&hei=1014&...	31.9 KiB	27.9 KiB

Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]

items: [map[duration:98.929998046875 label:Time to first byte subpart:timeToFirstByte] map[duration:24.553001953125 label:Resource load delay subpart:resourceLoadDelay] map[duration:1190.601 label:Resource load duration subpart:resourceLoadDuration] map[duration:1324.73 label:Element render delay subpart:elementRenderDelay]]

lhId: page-9-IMG

nodeLabel:

path: 1,HTML,1,BODY,4,DIV,4,DIV,0,DIV,0,DIV,0,SECTION,0,DIV,0,DIV,0,UL,0,LI,0,DIV,0,PICTURE,0,IMG

selector: li#splide02-slide01 > div.splide-content > picture > img.image

snippet: <img src="https://s7g10.scene7.com/is/image/eni/wer-2026:horizontal-4-3?&wid=1352&he…" alt=" " class="image">

Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-9-IMG

nodeLabel:

path: 1,HTML,1,BODY,4,DIV,4,DIV,0,DIV,0,DIV,0,SECTION,0,DIV,0,DIV,0,UL,0,LI,0,DIV,0,PICTURE,0,IMG

selector: li#splide02-slide01 > div.splide-content > picture > img.image

snippet: <img src="https://s7g10.scene7.com/is/image/eni/wer-2026:horizontal-4-3?&wid=1352&he…" alt=" " class="image">

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.

title: Preconnected origins

value: no origins were preconnected

description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.

title: Preconnect candidates

Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size	Duration
/etc.clientlibs/enicom/clientlibs/clientlib-dependencies....	502.9 KiB	3.0 s
/etc.clientlibs/enicom/clientlibs/clientlib-site.lc-19154...	173.3 KiB	900 ms
cdn.jsdelivr.net/npm/bootstrap-icons@1.13.1/font/bootstrap-icons.min.css	13.7 KiB	753 ms
/etc.clientlibs/core/wcm/components/tabs/v1/tabs/clientli...	847 B
/etc.clientlibs/enicom/clientlibs/clientlib-dependencies....	44.7 KiB	300 ms

Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Est Savings
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	20 ms
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	20 ms
/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...	15 ms

These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 781 ms

URL	Time Spent
eni.com/	781 ms
www.eni.com/en-IT/home.html	0.0 ms

Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Diagnostics

Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 23.2 KiB

URL	Transfer Size	Est Savings
/etc.clientlibs/enicom/clientlibs/clientlib-site.lc-19154...	173.3 KiB	23.2 KiB

Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 440 ms 70.6 KiB

URL	Transfer Size	Est Savings
/etc.clientlibs/enicom/clientlibs/clientlib-site.lc-18a61...	152.5 KiB	70.6 KiB

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 1.2 s 245.9 KiB

URL	Transfer Size	Est Savings
/etc.clientlibs/enicom/clientlibs/clientlib-site.lc-19154...	172.6 KiB	165.8 KiB
/etc.clientlibs/enicom/clientlibs/clientlib-dependencies....	44.1 KiB	43.3 KiB
	27.3 KiB	23.5 KiB
cdn.jsdelivr.net/npm/bootstrap-icons@1.13.1/font/bootstrap-icons.min.css	13.3 KiB	13.3 KiB

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 4.0 s 793.3 KiB

URL	Transfer Size	Est Savings
/etc.clientlibs/enicom/clientlibs/clientlib-dependencies....	502.2 KiB	385.6 KiB
/etc.clientlibs/enicom/clientlibs/clientlib-site.lc-18a61...	151.8 KiB	119.1 KiB
www.googletagmanager.com/gtm.js?id=GTM-53J7BV72&l=digitalData	186.2 KiB	75.8 KiB
cdn.cookielaw.org/scripttemplates/202606.2.0/otBannerSdk.js	136.5 KiB	75.7 KiB
www.googletagmanager.com/gtag/js?id=G-0W4RJBNYEC&l=digitalData&cx=c&gtm=4e68j0	166.1 KiB	69.6 KiB
www.googletagmanager.com/gtag/js?id=G-MCYTXG5ZQK&l=digitalData&cx=c&gtm=4e68j0	160.5 KiB	67.3 KiB

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Total CPU Time	Script Evaluation	Script Parse
/etc.clientlibs/enicom/clientlibs/clientlib-dependencies....	2.8 s	1.2 s	290 ms
Unattributable	1.8 s	254 ms	0.0 ms
www.eni.com/en-IT/home.html	969 ms	36 ms	4.0 ms
www.googletagmanager.com/gtm.js?id=GTM-53J7BV72&l=digitalData	677 ms	533 ms	96 ms
/etc.clientlibs/enicom/clientlibs/clientlib-site.lc-18a61...	491 ms	57 ms	194 ms
cdn.cookielaw.org/scripttemplates/202606.2.0/otBannerSdk.js	456 ms	282 ms	74 ms
www.googletagmanager.com/gtag/js?id=G-0W4RJBNYEC&l=digitalData&cx=c&gtm=4e68j0	390 ms	318 ms	66 ms
www.googletagmanager.com/gtag/js?id=G-MCYTXG5ZQK&l=digitalData&cx=c&gtm=4e68j0	349 ms	280 ms	64 ms
siteimproveanalytics.com/js/siteanalyze_6108806.js	125 ms	61 ms	6.6 ms
cdn.cookielaw.org/scripttemplates/otSDKStub.js	89 ms	79 ms	3.8 ms

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work

Why this matters

Performance issues directly impact user engagement and conversion rates.

Category	Time Spent
Script Evaluation	3.1 s
Other	2.6 s
Script Parsing & Compilation	808 ms
Style & Layout	750 ms
Rendering	454 ms
Parse HTML & CSS	361 ms
Garbage Collection	125 ms

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size
/etc.clientlibs/enicom/clientlibs/clientlib-dependencies....	502.9 KiB
/is/image/eni/hero-triangolo-tecnologico:horizontal-4-3?&...	221.2 KiB
www.googletagmanager.com/gtm.js?id=GTM-53J7BV72&l=digitalData	186.6 KiB
/etc.clientlibs/enicom/clientlibs/clientlib-site.lc-18a61...	185.2 KiB
/etc.clientlibs/enicom/clientlibs/clientlib-site.lc-19154...	173.3 KiB
www.googletagmanager.com/gtag/js?id=G-0W4RJBNYEC&l=digitalData&cx=c&gtm=4e68j0	166.2 KiB
www.googletagmanager.com/gtag/js?id=G-MCYTXG5ZQK&l=digitalData&cx=c&gtm=4e68j0	160.6 KiB
cdn.cookielaw.org/scripttemplates/202606.2.0/otBannerSdk.js	136.6 KiB
/is/image/eni/hero-lancio-enifor-01:horizontal-4-3?&wid=1...	115.0 KiB
/is/image/eni/hero-visione-hub-gas:square-1-1?&wid=816&he...	91.9 KiB

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL
article > a > picture > img `article > a > picture > img`	/is/image/eni/hpc7-0:square-1-1?&wid=816&hei=816&fit=crop...
Man and woman look at the world map inside the office `article > a > picture > img`	/is/image/eni/hero-attivita-mondo-eni-1:square-1-1?&wid=8...
neutralità tecnologicia `article > a > picture > img`	/is/image/eni/neutralita-tec:square-1-1?&wid=816&hei=816&...
Technician holding i-pad inside the HPC6 `article > a > picture > img`	/is/image/eni/hero-visione-eni-1:square-1-1?&wid=816&hei=...
Worker on board a ship carrying gas `article > a > picture > img`	/is/image/eni/hero-azioni-2026:square-1-1?&wid=816&hei=81...
Working group sitting around the table in the office `article > a > picture > img`	/is/image/eni/hero-prodotti:square-1-1?&wid=816&hei=816&f...
div#popupWelcome-genAI > div.modal-dialog > picture.arrowImg > img `div#popupWelcome-genAI > div.modal-dialog > picture.arrowImg > img`	/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...
Previous `div.paginator > div.splide__arrows > button.splide__arrow > img`	/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...
Next `div.paginator > div.splide__arrows > button.splide__arrow > img`	/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...
Icon Linkedin `div.fascia-social > ul.icons > a.icon-social > img.default`	www.eni.com/content/dam/enicom/images/icone/LinkedIn_new_footer.svg
Icon Instagram `div.fascia-social > ul.icons > a.icon-social > img.default`	www.eni.com/content/dam/enicom/images/icone/Instagram_new_footer.png
Icon Youtube `div.fascia-social > ul.icons > a.icon-social > img.default`	www.eni.com/content/dam/enicom/images/icone/YouTube_new_footer.png
Icon Facebook `div.fascia-social > ul.icons > a.icon-social > img.default`	www.eni.com/content/dam/enicom/images/icone/Facebook_new_footer.png
Icon Twitter `div.fascia-social > ul.icons > a.icon-social > img.default`	www.eni.com/content/dam/enicom/images/icone/X_new_footer.svg
Explore EnergIA `div.wrapper-component > div > button > img`	/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...
Naviga con l'IA `div#popupWelcome-genAI > div.wrapper-component > button > img`	/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...
Close `div.modal-body > div.top > button.button-close > img`	/etc.clientlibs/enicom/clientlibs/clientlib-site/resource...

More information about the performance of your application. These numbers don't directly affect the Performance score.

●Layout shift culprits

●Optimize DOM size

●Modern HTTP

●Optimize viewport for mobile

●Avoid long main-thread tasks 20 long tasks found

●Avoid non-composited animations 1 animated element found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 200 ms

●Server Backend Latencies 630 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 40 ms

●Avoid large layout shifts 1 layout shift found

○INP breakdown

○User Timing marks and measures

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

ARIA

ARIA dialog elements without accessible names may prevent screen readers users from discerning the purpose of these elements. Learn how to make ARIA dialog elements more accessible.

Why this matters

Informational: a Permissions-Policy directive showing feature -> allowed origins.

Source: MDN Permissions-Policy

Failing Elements
Use Eni’s artificial intelligence A window into Eni’s world, at your disposal.… `body#page-c099fe26b6 > div > div#popupWelcome-genAI`

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Names and labels

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
`li#splide02-slide01 > div.splide-content > picture > img.image`

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Tables and lists

Screen readers have a specific way of announcing lists. Ensuring proper list structure aids screen reader output. Learn more about proper list structure.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Link Linkedin `footer#footer--273961437 > section.wrapper-component > div.fascia-social > ul.icons`

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Visible text labels that do not match the accessible name can result in a confusing experience for screen reader users. Learn more about accessible names.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
19 AUGUST 2026 - 9:30 AM CEST Eni: report on the purchase of treasury shares du… `ul#splide01-list > li#splide01-slide01 > article > a.card`
17 AUGUST 2026 - 11:00 AM CEST Eni and SONATRACH expand cooperation to reduce e… `ul#splide01-list > li#splide01-slide02 > article > a.card`
ACTIONS Our worldwide activities, the global reach of our actions `div.wrapper-component > div#mosaico-1327084557 > article > a`
VISION The technological neutrality principle – energy for competitiveness `div.wrapper-component > div#mosaico-1327084557 > article > a`
VISION A strategic vision driven by research and technological innovation `div#nav-default > div.containerCard > article > a`
ACTIONS Our actions: concrete steps towards carbon neutrality `div#nav-default > div.containerCard > article > a`
PRODUCT Increasingly decarbonized products, services, and solutions `div#nav-default > div.containerCard > article > a`
cookie-policy `div#onetrust-group-container > div#onetrust-policy > div#onetrust-policy-text > a.ot-cookie-policy-link`

○Interactive controls are keyboard focusable

○Interactive elements indicate their purpose and state

○The page has a logical tab order

○Visual order on the page follows DOM order

○User focus is not accidentally trapped in a region

○The user's focus is directed to new content added to the page

○HTML5 landmark elements are used to improve navigation

○Offscreen content is hidden from assistive technology

○Custom controls have associated labels

○Custom controls have ARIA roles

●`[aria-*]` attributes match their roles

●`[aria-hidden="true"]` is not present on the document `<body>`

●`[role]`s have all required `[aria-*]` attributes

●Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.

●`[role]`s are contained by their required parent element

●`[role]` values are valid

●`[aria-*]` attributes have valid values

●`[aria-*]` attributes are valid and not misspelled

●Buttons have an accessible name

●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.

●ARIA attributes are used as specified for the element's role

●`[aria-hidden="true"]` elements do not contain focusable descendents

●Elements use only permitted ARIA attributes

●Background and foreground colors have a sufficient contrast ratio

●Document has a `<title>` element

●`<html>` element has a `[lang]` attribute

●`<html>` element has a valid value for its `[lang]` attribute

●Links are distinguishable without relying on color.

●Links have a discernible name

●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements

●No element has a `[tabindex]` value greater than 0

●Touch targets have sufficient size and spacing.

●Heading elements appear in a sequentially-descending order

●Skip links are focusable.

●Document has a main landmark.

●Deprecated ARIA roles were not used

●ARIA IDs are unique

●Uses ARIA roles only on compatible elements

○`[accesskey]` values are unique

○`button`, `link`, and `menuitem` elements have accessible names

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

○Elements with the `role=text` attribute do not have focusable descendents.

○ARIA toggle fields have accessible names

○ARIA `tooltip` elements have accessible names

○ARIA `treeitem` elements have accessible names

○The page contains a heading, skip link, or landmark region

○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.

○Definition list items are wrapped in `<dl>` elements

○No form fields have multiple labels

○`<frame>` or `<iframe>` elements have a title

○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.

○Input buttons have discernible text.

○`<input type="image">` elements have `[alt]` text

○Form elements have associated labels

○The document does not use `<meta http-equiv="refresh">`

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.

○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.

○`[lang]` attributes have a valid value

○`<video>` elements contain a `<track>` element with `[kind="captions"]`

○Tables have different content in the summary attribute and `<caption>`.

○All heading elements contain content.

○Image elements do not have `[alt]` attributes that are redundant text.

○Identical links have the same purpose.

○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.

○`<td>` elements in a large `<table>` have one or more table headers.

Best Practices

General

Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit

Why this matters

Performance issues directly impact user engagement and conversion rates.

Source	Description
enicomintranet.eni.com/asset/eni-intranet-jpg.jpg	`Failed to load resource: net::ERR_NAME_NOT_RESOLVED`
/etc.clientlibs/enicom/clientlibs/clientlib-site.lc-18a61... line 11082, col 13	`TypeError: Cannot read properties of null (reading 'addEventListener') at https://www.eni.com/etc.clientlibs/enicom/clientlibs/clientlib-site.lc-18a616ff409165b497ab8690a5caea76-lc.min.js:11083:14`

Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Map URL
/etc.clientlibs/enicom/clientlibs/clientlib-site.lc-18a61...
/etc.clientlibs/enicom/clientlibs/clientlib-dependencies....	www.eni.com/etc.clientlibs/enicom/clientlibs/purify.min.js.map

●Uses HTTPS

●Avoids deprecated APIs

●Avoids third-party cookies

●Allows users to paste into input fields

●Avoids requesting the geolocation permission on page load

●Avoids requesting the notification permission on page load

●Displays images with correct aspect ratio

●Serves images with appropriate resolution

●Page has the HTML doctype

●Properly defines charset

●No issues in the `Issues` panel in Chrome Devtools

●Ensure CSP is effective against XSS attacks

●Use a strong HSTS policy

●Ensure proper origin isolation with COOP

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

○Redirects HTTP traffic to HTTPS

○Mitigate clickjacking with XFO or CSP

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

Content Best Practices

Meta descriptions may be included in search results to concisely summarize page content. Learn more about the meta description.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Descriptive link text helps search engines understand your content. Learn how to make links more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Link destination	Link Text
www.eni.com/en-IT/cookie-policy.html	More information

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
`li#splide02-slide01 > div.splide-content > picture > img.image`

Format your HTML in a way that enables crawlers to better understand your app’s content.

○Structured data is valid

●Page isn’t blocked from indexing

●Document has a `<title>` element

●Page has successful HTTP status code

●Links are crawlable

●robots.txt is valid

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`