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Lighthouse Desktop

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

Audit breakdown by category with detailed findings.

81

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.

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.

URLResource SizeEst Savings
Traslochi div.card--border > div.card__logo > figure > img
www.paginegialle.it/static/images/traslochi_nazionali_367x206.png108.1 KiB103.7 KiB
Imprese di pulizia div.card--border > div.card__logo > figure > img
www.paginegialle.it/static/images/pulizia_367x206.png97.7 KiB93.3 KiB
Serramenti e infissi div.card--border > div.card__logo > figure > img
www.paginegialle.it/static/images/serramenti_367x206.png91.7 KiB87.4 KiB
a > div.illustrationCard > div.illustrationCard__image > img a > div.illustrationCard > div.illustrationCard__image > img
www.paginegialle.it/static/common/images/centenario_380x350.png104.5 KiB82.9 KiB
Antifurti e sicurezza div.card--border > div.card__logo > figure > img
www.paginegialle.it/static/images/antifurti_367x206.png83.6 KiB79.2 KiB
div.header__inner-wrapper > div.header__inner > a.header__logo-100 > ::before div.header__inner-wrapper > div.header__inner > a.header__logo-100 > ::before
www.paginegialle.it/static/images/logo_100_on_light.gif149.7 KiB74.9 KiB
a > div.illustrationCard > div.illustrationCard__image > img a > div.illustrationCard > div.illustrationCard__image > img
www.paginegialle.it/static/images/foto_new_cell_desk.png34.4 KiB10.2 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-7-DIV
nodeLabel: Trova tutto a due passi da te Categorie più cercate Farmacie Supermercati Risto…
path: 1,HTML,1,BODY,3,MAIN,0,DIV,0,SECTION,0,DIV
selector: main.site-main > div.homepage-container > section.hero > div.hero__bkgImg
snippet: <div class="hero__bkgImg">

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.

More than 4 preconnect connections were found. These should be used sparingly and only to the most important origins.
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.

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: 583 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

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.

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 10.6 KiB
URLTransfer SizeEst Savings
11.6 KiB10.6 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
a > div.illustrationCard > div.illustrationCard__image > img a > div.illustrationCard > div.illustrationCard__image > img
www.paginegialle.it/static/common/images/centenario_380x350.png
Serramenti e infissi div.card--border > div.card__logo > figure > img
www.paginegialle.it/static/images/serramenti_367x206.png
Imprese di pulizia div.card--border > div.card__logo > figure > img
www.paginegialle.it/static/images/pulizia_367x206.png
Antifurti e sicurezza div.card--border > div.card__logo > figure > img
www.paginegialle.it/static/images/antifurti_367x206.png
Traslochi div.card--border > div.card__logo > figure > img
www.paginegialle.it/static/images/traslochi_nazionali_367x206.png
ul > li > a.app-link > img ul > li > a.app-link > img
www.paginegialle.it/static/common/images/google-play-badge.png
ul > li > a.app-link > img ul > li > a.app-link > img
www.paginegialle.it/static/common/images/apple-badge.png

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

Max Potential First Input Delay 90 ms
Layout shift culprits
Document request latency
Optimize DOM size
Font display
Forced reflow
LCP breakdown
Modern HTTP
Optimize viewport for mobile
Minify CSS
Minify JavaScript
User Timing marks and measures 8 user timings
JavaScript execution time 0.6 s
Minimizes main-thread work 1.2 s
Avoid long main-thread tasks 4 long tasks found
Page didn't prevent back/forward cache restoration
Network Requests
Network Round Trip Times 240 ms
Server Backend Latencies 210 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 70 ms
INP breakdown
Avoid non-composited animations
Avoid large layout shifts
70

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.

Names and labels

When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.searchbar__inner > div#searchTypeGroup > div.searchbar__input-group > button.bttn-icon div.searchbar__inner > div#searchTypeGroup > div.searchbar__input-group > button.bttn-icon
div.searchbar__inner > div#searchTypeGroup > div.searchbar__input-group > button.bttn-icon div.searchbar__inner > div#searchTypeGroup > div.searchbar__input-group > button.bttn-icon
div#searchBar > div.searchbar__inner > form.searchbar__submit-form > button#searchSubmit div#searchBar > div.searchbar__inner > form.searchbar__submit-form > button#searchSubmit

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
a > div.illustrationCard > div.illustrationCard__image > img a > div.illustrationCard > div.illustrationCard__image > img
a > div.illustrationCard > div.illustrationCard__image > img a > div.illustrationCard > div.illustrationCard__image > img
ul > li > a.app-link > img ul > li > a.app-link > img
ul > li > a.app-link > img ul > li > a.app-link > img

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
header.header > div.header__inner-wrapper > div.header__inner > a.header__logo-100 header.header > div.header__inner-wrapper > div.header__inner > a.header__logo-100
div.header__inner-wrapper > div.header__inner > div.main-nav > a.main-nav__item div.header__inner-wrapper > div.header__inner > div.main-nav > a.main-nav__item
div.homepage-container > section#cerca-numero > div.container > a div.homepage-container > section#cerca-numero > div.container > a
section#cerca-numero > div.container > div.illustrationCard > a section#cerca-numero > div.container > div.illustrationCard > a
div.container > div.illustrationCard > div.illustrationCard__box > a div.container > div.illustrationCard > div.illustrationCard__box > a
div.illustrationCard__box > div.illustrationCard__wrapper > div.illustrationCard__cta > a div.illustrationCard__box > div.illustrationCard__wrapper > div.illustrationCard__cta > a
div.footer-sito__Lnk-box > ul > li > a.app-link div.footer-sito__Lnk-box > ul > li > a.app-link
div.footer-sito__Lnk-box > ul > li > a.app-link div.footer-sito__Lnk-box > ul > li > a.app-link

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.

Internationalization and localization

If a page doesn't specify a `lang` attribute, a screen reader assumes that the page is in the default language that the user chose when setting up the screen reader. If the page isn't actually in the default language, then the screen reader might not announce the page's text correctly. Learn more about the `lang` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html.m_desktop html.m_desktop

These are opportunities to improve the interpretation of your content by users in different locales.

Tables and lists

Screen readers require list items (`<li>`) to be contained within a parent `<ul>`, `<ol>` or `<menu>` to be announced properly. Learn more about proper list structure.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Fabbri div.container > div.categories > div.categories__item > li.categories__item--small
Ferramenta div.container > div.categories > div.categories__item > li.categories__item--small
Fiorai div.container > div.categories > div.categories__item > li.categories__item--small
Idraulici div.container > div.categories > div.categories__item > li.categories__item--small
Imprese di pulizia div.container > div.categories > div.categories__item > li.categories__item--small
Vedi tutte div.container > div.categories > div.categories__item > li.categories__item--large
Affittacamere div.container > div.categories > div.categories__item > li.categories__item--small
Bed and breakfast div.container > div.categories > div.categories__item > li.categories__item--small
Campeggio div.container > div.categories > div.categories__item > li.categories__item--small
Hotel div.container > div.categories > div.categories__item > li.categories__item--small
Ostelli div.container > div.categories > div.categories__item > li.categories__item--small
Vedi tutte div.container > div.categories > div.categories__item > li.categories__item--large
Alimentari div.container > div.categories > div.categories__item > li.categories__item--small
Frutta e verdura div.container > div.categories > div.categories__item > li.categories__item--small
Macellerie div.container > div.categories > div.categories__item > li.categories__item--small
Pescherie div.container > div.categories > div.categories__item > li.categories__item--small
Supermercati div.container > div.categories > div.categories__item > li.categories__item--small
Vedi tutte div.container > div.categories > div.categories__item > li.categories__item--large
Bar div.container > div.categories > div.categories__item > li.categories__item--small
Fast food div.container > div.categories > div.categories__item > li.categories__item--small
Pizzerie div.container > div.categories > div.categories__item > li.categories__item--small
Ristoranti div.container > div.categories > div.categories__item > li.categories__item--small
Sushi div.container > div.categories > div.categories__item > li.categories__item--small
Vedi tutte div.container > div.categories > div.categories__item > li.categories__item--large
Autolavaggi div.container > div.categories > div.categories__item > li.categories__item--small
Carrozzerie div.container > div.categories > div.categories__item > li.categories__item--small
Concessionarie auto div.container > div.categories > div.categories__item > li.categories__item--small
Elettrauto div.container > div.categories > div.categories__item > li.categories__item--small
Gommisti div.container > div.categories > div.categories__item > li.categories__item--small
Vedi tutte div.container > div.categories > div.categories__item > li.categories__item--large
Avvocati div.container > div.categories > div.categories__item > li.categories__item--small
Calzolai div.container > div.categories > div.categories__item > li.categories__item--small
Commercialisti div.container > div.categories > div.categories__item > li.categories__item--small
Notai div.container > div.categories > div.categories__item > li.categories__item--small
Studio legale div.container > div.categories > div.categories__item > li.categories__item--small
Vedi tutte div.container > div.categories > div.categories__item > li.categories__item--large
Farmacie div.container > div.categories > div.categories__item > li.categories__item--small
Guardia di finanza div.container > div.categories > div.categories__item > li.categories__item--small
Ospedali div.container > div.categories > div.categories__item > li.categories__item--small
Studio medico div.container > div.categories > div.categories__item > li.categories__item--small
Uffici postali div.container > div.categories > div.categories__item > li.categories__item--small
Vedi tutte div.container > div.categories > div.categories__item > li.categories__item--large
Barbieri div.container > div.categories > div.categories__item > li.categories__item--small
Centro estetico div.container > div.categories > div.categories__item > li.categories__item--small
Dentisti div.container > div.categories > div.categories__item > li.categories__item--small
Oculisti div.container > div.categories > div.categories__item > li.categories__item--small
Parrucchiere div.container > div.categories > div.categories__item > li.categories__item--small
Vedi tutte div.container > div.categories > div.categories__item > li.categories__item--large
Banche div.container > div.categories > div.categories__item > li.categories__item--small
Disinfestazione div.container > div.categories > div.categories__item > li.categories__item--small
Lavanderie div.container > div.categories > div.categories__item > li.categories__item--small
Onoranze funebri div.container > div.categories > div.categories__item > li.categories__item--small
Sanificazione div.container > div.categories > div.categories__item > li.categories__item--small
Vedi tutte div.container > div.categories > div.categories__item > li.categories__item--large
Abbigliamento bambino div.container > div.categories > div.categories__item > li.categories__item--small
Negozi di abbigliamento div.container > div.categories > div.categories__item > li.categories__item--small
Negozi di scarpe div.container > div.categories > div.categories__item > li.categories__item--small
Outlet div.container > div.categories > div.categories__item > li.categories__item--small
Sartorie div.container > div.categories > div.categories__item > li.categories__item--small
Vedi tutte div.container > div.categories > div.categories__item > li.categories__item--large
Cinema div.container > div.categories > div.categories__item > li.categories__item--small
Corsi di inglese div.container > div.categories > div.categories__item > li.categories__item--small
Librerie div.container > div.categories > div.categories__item > li.categories__item--small
Palestre div.container > div.categories > div.categories__item > li.categories__item--small
Piscine div.container > div.categories > div.categories__item > li.categories__item--small
Vedi tutte div.container > div.categories > div.categories__item > li.categories__item--large
Apple store div.container > div.categories > div.categories__item > li.categories__item--small
Calzedonia div.container > div.categories > div.categories__item > li.categories__item--small
Unicredit div.container > div.categories > div.categories__item > li.categories__item--small
Vodafone div.container > div.categories > div.categories__item > li.categories__item--small
Wind div.container > div.categories > div.categories__item > li.categories__item--small
Vedi tutte div.container > div.categories > div.categories__item > li.categories__item--large

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

Best practices

Disabling zooming is problematic for users with low vision who rely on screen magnification to properly see the contents of a web page. Learn more about the viewport meta tag.

Why this matters

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

Source: MDN Permissions-Policy

Failing Elements
head > meta head > meta

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
Fabbri div.categories > div.categories__item > li.categories__item--small > a
Ferramenta div.categories > div.categories__item > li.categories__item--small > a
Fiorai div.categories > div.categories__item > li.categories__item--small > a
Idraulici div.categories > div.categories__item > li.categories__item--small > a
Imprese di pulizia div.categories > div.categories__item > li.categories__item--small > a
Vedi tutte div.categories > div.categories__item > li.categories__item--large > a
DORMIRE div.container > div.categories > div.categories__item > a.categories__item--large
Affittacamere div.categories > div.categories__item > li.categories__item--small > a
Bed and breakfast div.categories > div.categories__item > li.categories__item--small > a
Campeggio div.categories > div.categories__item > li.categories__item--small > a
Hotel div.categories > div.categories__item > li.categories__item--small > a
Ostelli div.categories > div.categories__item > li.categories__item--small > a
Vedi tutte div.categories > div.categories__item > li.categories__item--large > a
FARE LA SPESA div.container > div.categories > div.categories__item > a.categories__item--large
Alimentari div.categories > div.categories__item > li.categories__item--small > a
Frutta e verdura div.categories > div.categories__item > li.categories__item--small > a
Macellerie div.categories > div.categories__item > li.categories__item--small > a
Pescherie div.categories > div.categories__item > li.categories__item--small > a
Supermercati div.categories > div.categories__item > li.categories__item--small > a
Vedi tutte div.categories > div.categories__item > li.categories__item--large > a
MANGIARE div.container > div.categories > div.categories__item > a.categories__item--large
Bar div.categories > div.categories__item > li.categories__item--small > a
Fast food div.categories > div.categories__item > li.categories__item--small > a
Pizzerie div.categories > div.categories__item > li.categories__item--small > a
Ristoranti div.categories > div.categories__item > li.categories__item--small > a
Sushi div.categories > div.categories__item > li.categories__item--small > a
Vedi tutte div.categories > div.categories__item > li.categories__item--large > a
Autolavaggi div.categories > div.categories__item > li.categories__item--small > a
Carrozzerie div.categories > div.categories__item > li.categories__item--small > a
Concessionarie auto div.categories > div.categories__item > li.categories__item--small > a
Elettrauto div.categories > div.categories__item > li.categories__item--small > a
Gommisti div.categories > div.categories__item > li.categories__item--small > a
Vedi tutte div.categories > div.categories__item > li.categories__item--large > a
PROFESSIONISTI div.container > div.categories > div.categories__item > a.categories__item--large
Avvocati div.categories > div.categories__item > li.categories__item--small > a
Calzolai div.categories > div.categories__item > li.categories__item--small > a
Commercialisti div.categories > div.categories__item > li.categories__item--small > a
Notai div.categories > div.categories__item > li.categories__item--small > a
Studio legale div.categories > div.categories__item > li.categories__item--small > a
Vedi tutte div.categories > div.categories__item > li.categories__item--large > a
PUBBLICA UTILITÀ div.container > div.categories > div.categories__item > a.categories__item--large
Farmacie div.categories > div.categories__item > li.categories__item--small > a
Guardia di finanza div.categories > div.categories__item > li.categories__item--small > a
Ospedali div.categories > div.categories__item > li.categories__item--small > a
Studio medico div.categories > div.categories__item > li.categories__item--small > a
Uffici postali div.categories > div.categories__item > li.categories__item--small > a
Vedi tutte div.categories > div.categories__item > li.categories__item--large > a
SALUTE E BELLEZZA div.container > div.categories > div.categories__item > a.categories__item--large
Barbieri div.categories > div.categories__item > li.categories__item--small > a
Centro estetico div.categories > div.categories__item > li.categories__item--small > a
Dentisti div.categories > div.categories__item > li.categories__item--small > a
Oculisti div.categories > div.categories__item > li.categories__item--small > a
Parrucchiere div.categories > div.categories__item > li.categories__item--small > a
Vedi tutte div.categories > div.categories__item > li.categories__item--large > a
SERVIZI div.container > div.categories > div.categories__item > a.categories__item--large
Banche div.categories > div.categories__item > li.categories__item--small > a
Disinfestazione div.categories > div.categories__item > li.categories__item--small > a
Lavanderie div.categories > div.categories__item > li.categories__item--small > a
Onoranze funebri div.categories > div.categories__item > li.categories__item--small > a
Sanificazione div.categories > div.categories__item > li.categories__item--small > a
Vedi tutte div.categories > div.categories__item > li.categories__item--large > a
SHOPPING E VESTIRE div.container > div.categories > div.categories__item > a.categories__item--large
Negozi di scarpe div.categories > div.categories__item > li.categories__item--small > a
Outlet div.categories > div.categories__item > li.categories__item--small > a
Sartorie div.categories > div.categories__item > li.categories__item--small > a
Vedi tutte div.categories > div.categories__item > li.categories__item--large > a
Cinema div.categories > div.categories__item > li.categories__item--small > a
Corsi di inglese div.categories > div.categories__item > li.categories__item--small > a
Librerie div.categories > div.categories__item > li.categories__item--small > a
Palestre div.categories > div.categories__item > li.categories__item--small > a
Piscine div.categories > div.categories__item > li.categories__item--small > a
Vedi tutte div.categories > div.categories__item > li.categories__item--large > a
TUTTI I MARCHI div.container > div.categories > div.categories__item > a.categories__item--large
Apple store div.categories > div.categories__item > li.categories__item--small > a
Calzedonia div.categories > div.categories__item > li.categories__item--small > a
Unicredit div.categories > div.categories__item > li.categories__item--small > a
Vodafone div.categories > div.categories__item > li.categories__item--small > a
Wind div.categories > div.categories__item > li.categories__item--small > a
Vedi tutte div.categories > div.categories__item > li.categories__item--large > a

These items highlight common accessibility best practices.

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
`[role]` values are valid
`[aria-*]` attributes have valid values
`[aria-*]` attributes are valid and not misspelled
Form elements have associated labels
ARIA attributes are used as specified for the element's role
Elements use only permitted ARIA attributes
Background and foreground colors have a sufficient contrast ratio
Document has a `<title>` element
Links are distinguishable without relying on color.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
No element has a `[tabindex]` value greater than 0
`[lang]` attributes have a valid value
Heading elements appear in a sequentially-descending order
Document has a main landmark.
Deprecated ARIA roles were not used
Identical links have the same purpose.
Elements with visible text labels have matching accessible names.
`[accesskey]` values are unique
`button`, `link`, and `menuitem` elements have accessible names
Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
`[aria-hidden="true"]` elements do not contain focusable descendents
ARIA input fields have accessible names
ARIA `meter` elements have accessible names
ARIA `progressbar` elements have accessible names
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
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 a valid value for its `[lang]` attribute
`<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
The document does not use `<meta http-equiv="refresh">`
`<object>` elements have alternate text
Select elements have associated label elements.
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.
Uses ARIA roles only on compatible elements
Image elements do not have `[alt]` attributes that are redundant text.
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.
96

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.

SourceDescription
Manifest: Line: 1, column: 1, Syntax error.
Manifest: Line: 1, column: 1, Syntax error.
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
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
85

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.

Crawling and Indexing

Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable

Why this matters

Performance issues directly impact user engagement and conversion rates.

Uncrawlable Link
div#mainMenu > div#mainMenuDrawer > div.main-menu__header > a.main-menu__close
div.header__inner-wrapper > div.header__inner > div.main-nav > a.main-nav__item div.header__inner-wrapper > div.header__inner > div.main-nav > a.main-nav__item

To appear in search results, crawlers need access to your app.

Content Best Practices

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
a > div.illustrationCard > div.illustrationCard__image > img a > div.illustrationCard > div.illustrationCard__image > img
a > div.illustrationCard > div.illustrationCard__image > img a > div.illustrationCard > div.illustrationCard__image > img
ul > li > a.app-link > img ul > li > a.app-link > img
ul > li > a.app-link > img ul > li > a.app-link > img

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
Document has a meta description
Page has successful HTTP status code
Links have descriptive text
robots.txt is valid
Document has a valid `hreflang`
Document has a valid `rel=canonical`

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