Lighthouse Desktop

· 0 checks — Desktop 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.

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
m.media-amazon.com/images/S/sash/MexTn601PAhMvAn.woff2	85 ms
m.media-amazon.com/images/S/sash/rlTCFdyUZFR9mQI.woff2	80 ms
m.media-amazon.com/images/S/sash/WOnTLzkiaEccV7F.woff2	70 ms
m.media-amazon.com/images/S/sash/ukoYNzKrqDRxhTq.woff2	70 ms
m.media-amazon.com/images/S/sash/VjTR4RqBzY0mUYx.woff2	65 ms
m.media-amazon.com/images/S/sash/Wdqa3S7nfGc3Naj.woff2	65 ms
m.media-amazon.com/images/S/sash/1yLvxs7jafx7AW$.woff2	65 ms
m.media-amazon.com/images/S/sash/pnZF3$c0rgepEUt.woff2	60 ms
m.media-amazon.com/images/S/sash/-w6hwcDxlefrOYI.woff2	60 ms
m.media-amazon.com/images/S/sash/gyrV-mLs7VcgiFC.woff2	60 ms
m.media-amazon.com/images/S/sash/8AuIu4whVB5EMoJ.woff2	60 ms
m.media-amazon.com/images/S/sash/ozb5-CLHQWI6Soc.woff2	55 ms
m.media-amazon.com/images/S/sash/NvWNxKhmDbgI1lq.woff2	50 ms
m.media-amazon.com/images/S/sash/lZemoC3awOEEzLR.woff2	45 ms
m.media-amazon.com/images/S/sash/KFPk-9IF4FqAqY-.woff2	40 ms
m.media-amazon.com/images/S/sash/Dv1WQ5DdeMS5qP7.woff2	40 ms
m.media-amazon.com/images/S/sash/1Ep1kWVX5g73xrY.woff2	30 ms
m.media-amazon.com/images/S/sash/2SazJx$EeTHfhMN.woff2	20 ms
m.media-amazon.com/images/S/sash/KwhNPG8Jz-Vz2X7.woff2	15 ms
m.media-amazon.com/images/S/sash/pDxWAF1pBB0dzGB.woff2	5.0 ms

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:32.781 source:map[column:442 line:6 type:source-location url:https://m.media-amazon.com/images/I/51jC0T3AfxL._RC%7C71ekcYa0U8L.js,416IQz5llzL.js,01jkKbRkZjL.js,01wGOYsRBlL.js,81J0ifxX2yL.js,01m0EuyLqIL.js,41jBieyCvYL.js,01wXnKULArL.js,01+pnQJuQ0L.js,21gBwAAfnjL.js,41QRFQdRb4L.js,41GvVRH6GqL.js,31yCF4ftzxL.js,11lw6J7z8iL.js,31COIUU385L.js,01VYGE8lGhL.js_.js?AUIClients/NavDesktopUberAsset 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:0.608 source:map[column:241 line:4083 type:source-location url:https://www.amazon.it/ urlProvider:network]] map[reflowTime:2.891 source:map[column:2 line:157 type:source-location url:https://m.media-amazon.com/images/I/61xJcNKKLXL.js?AUIClients/AmazonUIjQuery urlProvider:network]] map[reflowTime:13.108 source:map[column:2 line:155 type:source-location url:https://m.media-amazon.com/images/I/61xJcNKKLXL.js?AUIClients/AmazonUIjQuery urlProvider:network]] map[reflowTime:1.113 source:map[column:408 line:134 type:source-location url:https://m.media-amazon.com/images/I/51jC0T3AfxL._RC%7C71ekcYa0U8L.js,416IQz5llzL.js,01jkKbRkZjL.js,01wGOYsRBlL.js,81J0ifxX2yL.js,01m0EuyLqIL.js,41jBieyCvYL.js,01wXnKULArL.js,01+pnQJuQ0L.js,21gBwAAfnjL.js,41QRFQdRb4L.js,41GvVRH6GqL.js,31yCF4ftzxL.js,11lw6J7z8iL.js,31COIUU385L.js,01VYGE8lGhL.js_.js?AUIClients/NavDesktopUberAsset urlProvider:network]] map[reflowTime:0.464 source:map[column:8631 line:4159 type:source-location url:https://www.amazon.it/ urlProvider:network]] map[reflowTime:20.015 source:map[column:53 line:29 type:source-location url:https://m.media-amazon.com/images/I/61xJcNKKLXL.js?AUIClients/AmazonUIjQuery urlProvider:network]] map[reflowTime:0.39 source:map[column:88 line:199 type:source-location url:https://m.media-amazon.com/images/I/61xJcNKKLXL.js?AUIClients/AmazonUIjQuery urlProvider:network]] map[reflowTime:0.482 source:map[column:415 line:197 type:source-location url:https://m.media-amazon.com/images/I/61xJcNKKLXL.js?AUIClients/AmazonUIjQuery 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
Italy `a.nav-a > span.icp-nav-link-inner > span.nav-line-2 > span.icp-nav-flag`	m.media-amazon.com/images/S/sash/MAbi1rCjQI9H2y0.png	44.3 KiB	35.0 KiB
Caffè Borbone Mia-Napoli Mixture – 100 Aluminium Capsules (10 Packs of 10) – Co… `div.a-section > a.a-spacing-none > div.a-image-container > img`	m.media-amazon.com/images/I/61O4x-MngPL._AC_SY170_.jpg	11.9 KiB	10.0 KiB
Oral-B Rechargeable Electric Toothbrush iO 6N Black, 1 Electric Toothbrush, 2 R… `div.a-section > a.a-spacing-none > div.a-image-container > img`	m.media-amazon.com/images/I/61p8RA4prEL._AC_SY170_.jpg	8.8 KiB	6.6 KiB
Oral-B Rechargeable Electric Toothbrush iO 3 Black, 1 Electric Toothbrush, 1 Re… `div.a-section > a.a-spacing-none > div.a-image-container > img`	m.media-amazon.com/images/I/61i1fLgqkRL._AC_SY170_.jpg	8.7 KiB	6.4 KiB

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-4-IMG

nodeLabel: Ring and Blink home security devices on blue background. Text reads: "Home when…

path: 1,HTML,4,BODY,0,DIV,46,DIV,2,DIV,0,DIV,0,DIV,3,DIV,0,DIV,1,DIV,0,DIV,0,OL,0,LI,0,DIV,3,DIV,0,DIV,0,DIV,0,DIV,0,IMG

selector: div.a-section > div.a-section > div.a-section > img._cropped-image-map_style_fluidLandscapeImage__3eTVC

snippet: <img alt="Ring and Blink home security devices on blue background. Text reads: "Home…" src="https://m.media-amazon.com/images/I/513FcBs-HpL._SX1500_.jpg" class="_cropped-image-map_style_fluidLandscapeImage__3eTVC _cropped-image-map_s…" data-a-hires="https://m.media-amazon.com/images/I/71K7gClu-DL._SX3000_.jpg">

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

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

value: No additional origins are good candidates for preconnecting

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
/images/I/51waPb-h-9L._RC\|71VZyKb-gRL.css,41WcY5PbsbL.css...	57.2 KiB	82 ms
/images/I/11WsGYSItxL._RC\|01DE6WSvLKL.css,41ixaNR85ML.css...	28.4 KiB
/images/I/21skJF47J6L._RC\|51Y8Xg9itbL.css_.css?AUIClients...	7.1 KiB	224 ms
m.media-amazon.com/images/I/41OtS-2qKxL.css?AUIClients/AdPlacementStyleAssets	2.2 KiB
m.media-amazon.com/images/I/11J1WJh9jNL.js?AUIClients/PRIVCONAssets-stub	1.8 KiB
m.media-amazon.com/images/I/413o2CUJ6GL.css?AUIClients/AmazonGatewayAuiAssets	4.7 KiB

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
/1/batch/1/OP/APJ6JRA9NG5V4:521-7813448-0423144:YVXM5PG7N...	0.0 ms	150 B
/1/batch/1/OP/APJ6JRA9NG5V4:521-7813448-0423144:YVXM5PG7N...	0.0 ms	150 B
/1/batch/1/OP/APJ6JRA9NG5V4:521-7813448-0423144:YVXM5PG7N...	0.0 ms	150 B
/1/batch/1/OP/APJ6JRA9NG5V4:521-7813448-0423144:YVXM5PG7N...	0.0 ms	149 B
/1/batch/1/OP/APJ6JRA9NG5V4:521-7813448-0423144:YVXM5PG7N...	0.0 ms	149 B
/1/batch/1/OP/APJ6JRA9NG5V4:521-7813448-0423144:YVXM5PG7N...	0.0 ms	149 B
/1/batch/1/OP/APJ6JRA9NG5V4:521-7813448-0423144:YVXM5PG7N...	0.0 ms	149 B
/1/batch/1/OP/APJ6JRA9NG5V4:521-7813448-0423144:YVXM5PG7N...	0.0 ms	149 B
/1/batch/1/OP/APJ6JRA9NG5V4:521-7813448-0423144:YVXM5PG7N...	0.0 ms	149 B
/1/batch/1/OP/APJ6JRA9NG5V4:521-7813448-0423144:YVXM5PG7N...	0.0 ms	149 B
/1/batch/1/OP/APJ6JRA9NG5V4:521-7813448-0423144:YVXM5PG7N...	0.0 ms	149 B
/rd/uedata?rid=YVXM5PG7NG5EM568JPBB&sid=521-7813448-04231...	0.0 ms	71 B
/rd/uedata?rid=YVXM5PG7NG5EM568JPBB&sid=521-7813448-04231...	0.0 ms	71 B

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: 1.1 s

URL	Time Spent
amazon.it/	701 ms
www.amazon.it/	415 ms
www.amazon.it/	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

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: 210 ms 426.2 KiB

URL	Transfer Size	Est Savings
/1c5c1ecf7303/e77a1b1957e9/308fcf4cdea0/challenge.js	505.1 KiB	280.2 KiB
/images/I/51jC0T3AfxL._RC\|71ekcYa0U8L.js,416IQz5llzL.js,0...	122.1 KiB	78.2 KiB
/images/I/11I0WXrZVoL._RC\|11Y+5x+kkTL.js,518IfuPC2lL.js,1...	68.8 KiB	44.1 KiB
m.media-amazon.com/images/I/81kCF8wuZEL.js?AUIClients/FWCIMAssets	56.3 KiB	23.7 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: 0.0 ms 26.6 KiB

URL	Transfer Size	Est Savings
inline: //////////////////////////////////////…	41.7 KiB	17.6 KiB
/images/I/11sflnhgXuL._RC\|61xgboVfIXL.js_.js?AUIClients/A...	16.0 KiB	7.0 KiB
inline: <!-- window.$Nav && $Nav.decla…	15.2 KiB	2.0 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: 0.0 ms 142.9 KiB

URL	Transfer Size	Est Savings
/images/I/51waPb-h-9L._RC\|71VZyKb-gRL.css,41WcY5PbsbL.css...	103.9 KiB	94.4 KiB
/images/I/11WsGYSItxL._RC\|01DE6WSvLKL.css,41ixaNR85ML.css...	50.8 KiB	48.5 KiB

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

●Layout shift culprits

●Document request latency

●Optimize DOM size

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Avoids enormous network payloads Total size was 2,253 KiB

●JavaScript execution time 1.0 s

●Minimizes main-thread work 1.7 s

●Avoid long main-thread tasks 3 long tasks found

●Image elements have explicit `width` and `height`

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 180 ms

●Server Backend Latencies 190 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 220 ms

●Avoid large layout shifts 1 layout shift found

○INP breakdown

○User Timing marks and measures

○Avoid non-composited animations

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

Each ARIA `role` supports a specific subset of `aria-*` attributes. Mismatching these invalidates the `aria-*` attributes. Learn how to match ARIA attributes to their roles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Search Amazon.it `form#nav-search-bar-form > div.nav-fill > div.nav-search-field > input#twotabsearchtextbox`

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.

Navigation

Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Get to Know Us `div.navFooterVerticalColumn > div.navFooterVerticalRow > div.navFooterLinkCol > div.navFooterColHead`

These are opportunities to improve keyboard navigation in your application.

Best practices

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Expand to Change Language or Country `div.nav-right > div#nav-tools > div#icp-nav-flyout > button.nav-flyout-button`
Expand Account and Lists `div.nav-right > div#nav-tools > div#nav-link-accountList > button.nav-flyout-button`
Gift Cards Details `ul.nav-ul > li.nav-li > div#nav_link_gift_cards > button.nav-flyout-button`

These items highlight common accessibility best practices.

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
EN `div.nav-right > div#nav-tools > div#icp-nav-flyout > a.nav-a`
Skin care `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
Makeup `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
Premium fragrances `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
Hairstyling `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
Apparel `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
Beauty `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
Food and Drink `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
Sweets and Pastry `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
TVs `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
Soundbar `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
Projectors `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
Remote controls `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
Smartphone `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
Power banks `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
In-ear headphones `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
Cycle computers `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
Dogs `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
Cats `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
Small animals `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
Fish `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
LED bulbs `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
Filter jugs `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
Drying racks `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
Pot sets `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
PS5 headsets `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
Virtual reality `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
PS4 games `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
Gaming keyboards `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
Drum sticks `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
Soprano recorders `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
Guitar strings `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
Audio interfaces `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
Kindle eBooks `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
Audiobooks `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
Literary awards `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`
Best-sellers `div._Zmx1a_fluidQuadImageLabelBody_3tld0 > div.a-section > div.a-section > a.a-link-normal`

○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-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]` values are valid

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

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

●Buttons have an accessible name

●Image elements have `[alt]` attributes

●Input buttons have discernible text.

●Form elements have associated labels

●Select elements have associated label elements.

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

●Elements with `role="dialog"` or `role="alertdialog"` have accessible names.

●`[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

●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).

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

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

●`[lang]` attributes have a valid value

●Document has a main landmark.

●Deprecated ARIA roles were not used

●Uses ARIA roles only on compatible elements

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

●Identical links have the same purpose.

○`[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

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

○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

○ARIA IDs are unique

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

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

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

○`<object>` elements have alternate text

○Skip links are focusable.

○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.

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

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

○All heading elements contain content.

○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

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / Warning	Source
SharedStorage	www.amazon.it/ line 4178, col 2048

●Uses HTTPS

●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 browser errors logged to the console

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

●Ensure CSP is effective against XSS attacks

●Ensure proper origin isolation with COOP

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

○Use a strong HSTS policy

○Mitigate clickjacking with XFO or CSP

100

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.

○Structured data is valid

●Page isn’t blocked from indexing

●Document has a `<title>` element

●Document has a meta description

●Page has successful HTTP status code

●Links have descriptive text

●Links are crawlable

●robots.txt is valid

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`