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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.

53

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.

RequestCache TTLTransfer Size
platform.docplanner.com/js/vendor-chunk-rs-b5b6a1fe.js0.0 ms339.4 KiB
platform.docplanner.com/js/jade-app-rs-14a6bf33.js0.0 ms265.8 KiB
platform.docplanner.com/img/general/homepage/banner-doctoralia-pro.png?1881655350.0 ms107.8 KiB
platform.docplanner.com/img/it/homepage/banner-noa-notes.png?15999267110.0 ms91.8 KiB
platform.docplanner.com/js/vue-vendor-chunk-rs-2fb42b4f.js0.0 ms79.7 KiB
platform.docplanner.com/js/jade-polyfills-rs-62e7729b.js0.0 ms58.1 KiB
platform.docplanner.com/css/jade-dpuikitv3-rs-465d4a1d.css0.0 ms54.9 KiB
cookie-cdn.cookiepro.com/scripttemplates/202604.2.0/otBannerSdk.js86400.0 s135.4 KiB
platform.docplanner.com/js/goro-homepage-02e4506e.js0.0 ms50.2 KiB
platform.docplanner.com/img/general/homepage/homepage-all-nova.svg?v=10.0 ms44.7 KiB
platform.docplanner.com/js/runtime-rs-1645bbaa.js0.0 ms34.4 KiB
platform.docplanner.com/js/SearchAutocompleteModule-chunk-rs-baca1356.js0.0 ms16.6 KiB
www.google-analytics.com/analytics.js7200.0 s20.9 KiB
platform.docplanner.com/js/53667-chunk-rs-e6d65d32.js0.0 ms13.2 KiB
platform.docplanner.com/js/Routes-chunk-rs-f3126218.js0.0 ms11.7 KiB
/doctor/avatar/4b143af7/4b143af7-365b-4d25-baf4-7ab60d740...0.0 ms11.4 KiB
/dcdn/settings.js?a=772888&settings_type=4&ts=1783926258&...1800.0 s8.9 KiB
platform.docplanner.com/css/jade-homepage-rs-266f0ab1.css0.0 ms6.9 KiB
platform.docplanner.com/js/Stats-chunk-rs-645af57e.js0.0 ms6.6 KiB
cookie-cdn.cookiepro.com/logos/static/ot_company_logo.png86400.0 s11.7 KiB
platform.docplanner.com/js/PharmaciesSearchModule-chunk-rs-e5fd1404.js0.0 ms4.5 KiB
platform.docplanner.com/js/LazyLoad-chunk-rs-30035d7d.js0.0 ms4.2 KiB
/consent/0d2dc4ef-61b5-4c47-baf0-e14671409bbe/otSDKStub.j...86400.0 s10.1 KiB
/doctor/avatar/5fc58db9/5fc58db9-2e41-4fb5-9978-f27f08662...0.0 ms3.6 KiB
platform.docplanner.com/js/ViewUtils-chunk-rs-175e0eaa.js0.0 ms3.3 KiB
platform.docplanner.com/img/it/logo/logo-default-it.svg?v=80.0 ms3.1 KiB
platform.docplanner.com/js/OnlineConsultationSearchModule-chunk-rs-48fb732c.js0.0 ms2.3 KiB
platform.docplanner.com/js/HubspotCTAModule-chunk-rs-e246bb60.js0.0 ms2.2 KiB
platform.docplanner.com/js/HomepageTrackingController-chunk-rs-585642ed.js0.0 ms2.1 KiB
platform.docplanner.com/js/GoogleOneTapModule-chunk-rs-493cf1fb.js0.0 ms1.6 KiB
platform.docplanner.com/js/HomepageController-chunk-rs-7012b45a.js0.0 ms1.6 KiB
platform.docplanner.com/js/Notifications-chunk-rs-1c4a5a3a.js0.0 ms1.6 KiB
platform.docplanner.com/js/WhatIsOnlineConsultationModule-chunk-rs-e60af659.js0.0 ms1.6 KiB
platform.docplanner.com/js/SearchAutocompleteController-chunk-rs-fc09ebe9.js0.0 ms1.6 KiB
platform.docplanner.com/js/Modal-chunk-rs-f91fecda.js0.0 ms1.5 KiB
platform.docplanner.com/js/GoogleOneTapController-chunk-rs-3a77d04e.js0.0 ms1.3 KiB
platform.docplanner.com/js/HomepageDialogsContainerModule-chunk-rs-f9d21bc6.js0.0 ms1.3 KiB
platform.docplanner.com/js/MixpanelTrackingModule-chunk-rs-cee0e6b4.js0.0 ms1.2 KiB
platform.docplanner.com/js/Recruitment-chunk-rs-19ef72eb.js0.0 ms1.2 KiB
platform.docplanner.com/img/general/doctor/doctor-default-80-80.png?19819526130.0 ms1.2 KiB
platform.docplanner.com/js/UserLogin-chunk-rs-cbfd4e65.js0.0 ms1.2 KiB
platform.docplanner.com/js/OpinionsController-chunk-rs-e381c25c.js0.0 ms1.2 KiB
platform.docplanner.com/js/HubspotCTA-chunk-rs-1df1a526.js0.0 ms1.2 KiB
platform.docplanner.com/js/NewDoctorsWidgetModule-chunk-rs-85cea359.js0.0 ms1.2 KiB
platform.docplanner.com/js/Mixpanel-chunk-rs-b7401073.js0.0 ms1.1 KiB
platform.docplanner.com/css/Notifications-rs-d4a50040.css0.0 ms1.1 KiB
cookie-cdn.cookiepro.com/logos/static/powered_by_logo.svg86400.0 s2.7 KiB
platform.docplanner.com/js/HomepageSearchFormModule-chunk-rs-49fb83e1.js0.0 ms1.0 KiB
platform.docplanner.com/js/Config-it-chunk-rs-60b560aa.js0.0 ms1.0 KiB
platform.docplanner.com/js/RecruitmentEasterEgg-chunk-rs-9f5ac982.js0.0 ms1005 B
platform.docplanner.com/js/FloatingCookiesInfoController-chunk-rs-29838ac9.js0.0 ms1003 B
platform.docplanner.com/js/TopNavigation-chunk-rs-5124e07a.js0.0 ms992 B
platform.docplanner.com/css/SearchAutocompleteModule-rs-8a6829bf.css0.0 ms819 B
platform.docplanner.com/css/OnlineConsultationSearchModule-rs-856634f1.css0.0 ms642 B
platform.docplanner.com/css/PharmaciesSearchModule-rs-5c7397c2.css0.0 ms594 B
platform.docplanner.com/css/WhatIsOnlineConsultationModule-rs-b8506c27.css0.0 ms552 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:13.229 source:map[column:4495 line:26 type:source-location url:https://platform.docplanner.com/js/jade-app-rs-14a6bf33.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:80.349 source:map[type:text value:[unattributed]]] map[reflowTime:12.673 source:map[column:274251 line:6 type:source-location url:https://cookie-cdn.cookiepro.com/scripttemplates/202604.2.0/otBannerSdk.js urlProvider:network]] map[reflowTime:0.183 source:map[column:274595 line:6 type:source-location url:https://cookie-cdn.cookiepro.com/scripttemplates/202604.2.0/otBannerSdk.js urlProvider:network]] map[reflowTime:0.373 source:map[column:329013 line:6 type:source-location url:https://cookie-cdn.cookiepro.com/scripttemplates/202604.2.0/otBannerSdk.js urlProvider:network]]]

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-0-DIV
nodeLabel: main > section#intro > div > div.intro-bkg
path: 1,HTML,1,BODY,10,MAIN,0,SECTION,0,DIV,0,DIV
selector: main > section#intro > div > div.intro-bkg
snippet: <div class="intro-bkg intro-bkg-offline-consultation active" data-intro-bkg="office-visit" style="background-image: url(&quot;//platform.docplanner.com/img/general/homepage/home…&quot;);">

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

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
div.d-flex > div.col-12 > div.mb-2 > img.w-100 div.d-flex > div.col-12 > div.mb-2 > img.w-100
platform.docplanner.com/img/general/homepage/banner-doctoralia-pro.png?188165535107.5 KiB90.3 KiB
div.d-flex > div.col-12 > div.mb-2 > img.w-100 div.d-flex > div.col-12 > div.mb-2 > img.w-100
platform.docplanner.com/img/it/homepage/banner-noa-notes.png?159992671191.4 KiB74.3 KiB
Giuseppe La Rocca div.media > div.pr-1 > span.avatar > img.lazyloaded
/miodottore.it/doctor/3f541f/3f541fba0974563c116c760d095c...11.1 KiB11.0 KiB
div.media > div.pr-1 > span.avatar > img.lazyloaded div.media > div.pr-1 > span.avatar > img.lazyloaded
/doctor/avatar/4b143af7/4b143af7-365b-4d25-baf4-7ab60d740...11.0 KiB10.8 KiB
Sergio Caputo div.media > div.pr-1 > span.avatar > img.lazyloaded
/miodottore.it/doctor/e503bd/e503bdd76778a0e362b4e0574e66...5.2 KiB5.1 KiB

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: 665 ms
URLTime Spent
miodottore.it/665 ms
www.miodottore.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.

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.

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.

CategoryTime Spent
Script Evaluation1.5 s
Other281 ms
Style & Layout227 ms
Script Parsing & Compilation199 ms
Garbage Collection49 ms
Rendering42 ms
Parse HTML & CSS33 ms

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 59.3 KiB
URLTransfer SizeEst Savings
platform.docplanner.com/css/jade-dpuikitv3-rs-465d4a1d.css54.5 KiB39.8 KiB
22.7 KiB19.5 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
div.d-flex > div.col-12 > div.mb-2 > img.w-100 div.d-flex > div.col-12 > div.mb-2 > img.w-100
platform.docplanner.com/img/general/homepage/banner-doctoralia-pro.png?188165535
div.d-flex > div.col-12 > div.mb-2 > img.w-100 div.d-flex > div.col-12 > div.mb-2 > img.w-100
platform.docplanner.com/img/it/homepage/banner-noa-notes.png?1599926711
div.media > div.pr-1 > span.avatar > img.lazyloaded div.media > div.pr-1 > span.avatar > img.lazyloaded
/doctor/avatar/4b143af7/4b143af7-365b-4d25-baf4-7ab60d740...
Andrea Manzoli div.media > div.pr-1 > span.avatar > img.lazyloaded
/doctor/avatar/5fc58db9/5fc58db9-2e41-4fb5-9978-f27f08662...
Sergio Caputo div.media > div.pr-1 > span.avatar > img.lazyloaded
/miodottore.it/doctor/e503bd/e503bdd76778a0e362b4e0574e66...
Giuseppe La Rocca div.media > div.pr-1 > span.avatar > img.lazyloaded
/miodottore.it/doctor/3f541f/3f541fba0974563c116c760d095c...
Dott.ssa Valeriia Nikolaieva div.media > div.pr-1-5 > span.mb-1 > img.lazyload
platform.docplanner.com/img/general/doctor/doctor-default-80-80.png?1981952613
Dott. Salvatore Scaldarella div.media > div.pr-1-5 > span.mb-1 > img.lazyload
platform.docplanner.com/img/general/doctor/doctor-default-80-80.png?1981952613
Dott.ssa Gloria Calagna div.media > div.pr-1-5 > span.mb-1 > img.lazyload
platform.docplanner.com/img/general/doctor/doctor-default-80-80.png?1981952613
Dott. Daniele Filippo Andrina div.media > div.pr-1-5 > span.mb-1 > img.lazyload
platform.docplanner.com/img/general/doctor/doctor-default-80-80.png?1981952613
Dott.ssa Valentina Isola div.media > div.pr-1-5 > span.mb-1 > img.lazyload
platform.docplanner.com/img/general/doctor/doctor-default-80-80.png?1981952613
Dott.ssa Martina De Luca div.media > div.pr-1-5 > span.mb-1 > img.lazyload
platform.docplanner.com/img/general/doctor/doctor-default-80-80.png?1981952613
Dott.ssa Antonella Ermini div.media > div.pr-1-5 > span.mb-1 > img.lazyload
platform.docplanner.com/img/general/doctor/doctor-default-80-80.png?1981952613
Dott.ssa MARTINA MANGHERINI div.media > div.pr-1-5 > span.mb-1 > img.lazyload
platform.docplanner.com/img/general/doctor/doctor-default-80-80.png?1981952613
Dott.ssa Francesca Borghi div.media > div.pr-1-5 > span.mb-1 > img.lazyload
platform.docplanner.com/img/general/doctor/doctor-default-80-80.png?1981952613
Dott.ssa Ornella Iodice div.media > div.pr-1-5 > span.mb-1 > img.lazyload
platform.docplanner.com/img/general/doctor/doctor-default-80-80.png?1981952613
Dott. Vincenzo D'agostino div.media > div.pr-1-5 > span.mb-1 > img.lazyload
platform.docplanner.com/img/general/doctor/doctor-default-80-80.png?1981952613
Dott. Francesco Buono div.media > div.pr-1-5 > span.mb-1 > img.lazyload
platform.docplanner.com/img/general/doctor/doctor-default-80-80.png?1981952613
Dott. Mariano Paparella div.media > div.pr-1-5 > span.mb-1 > img.lazyload
platform.docplanner.com/img/general/doctor/doctor-default-80-80.png?1981952613
Dr. Davide Barraco div.media > div.pr-1-5 > span.mb-1 > img.lazyload
platform.docplanner.com/img/general/doctor/doctor-default-80-80.png?1981952613
Dott.ssa Aurora Paulucci div.media > div.pr-1-5 > span.mb-1 > img.lazyload
platform.docplanner.com/img/general/doctor/doctor-default-80-80.png?1981952613
Dott.ssa Virginia Piazzolla div.media > div.pr-1-5 > span.mb-1 > img.lazyload
platform.docplanner.com/img/general/doctor/doctor-default-80-80.png?1981952613
Dott.ssa Sabrina Maria Gatto div.media > div.pr-1-5 > span.mb-1 > img.lazyload
platform.docplanner.com/img/general/doctor/doctor-default-80-80.png?1981952613
Dott.ssa Dora Coniglio div.media > div.pr-1-5 > span.mb-1 > img.lazyload
platform.docplanner.com/img/general/doctor/doctor-default-80-80.png?1981952613
Dott. Nicolò Nangano div.media > div.pr-1-5 > span.mb-1 > img.lazyload
platform.docplanner.com/img/general/doctor/doctor-default-80-80.png?1981952613
Dr. Carmine Salzillo div.media > div.pr-1-5 > span.mb-1 > img.lazyload
platform.docplanner.com/img/general/doctor/doctor-default-80-80.png?1981952613
div.media > div.pr-1 > span.avatar > img.lazyload div.media > div.pr-1 > span.avatar > img.lazyload

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

Layout shift culprits
Optimize DOM size
Font display
LCP breakdown
Modern HTTP
Optimize viewport for mobile
Minify CSS
Minify JavaScript
User Timing marks and measures 1 user timing
Avoid long main-thread tasks 12 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 150 ms
Server Backend Latencies 460 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 10 ms
INP breakdown
Avoid large layout shifts
68

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
es. prestazione, medico, struttura div.search-flex-row > div.specialists-col > div.query-dropdown > div.dropdown-toggle
es: Roma div.search-flex-row > div.city-col > div.search-autocomplete-dropdown > div.dropdown-toggle

Some ARIA parent roles must contain specific child roles to perform their intended accessibility functions. Learn more about roles and required children elements.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
In studio In studio Online Online Farmacie Farmacie div.row > div.col-lg-8 > div#homepage-search > ul.d-flex

Some ARIA child roles must be contained by specific parent roles to properly perform their intended accessibility functions. Learn more about ARIA roles and required parent element.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
In studio In studio div#homepage-search > ul.d-flex > li > button.btn
Online Online div#homepage-search > ul.d-flex > li > button.btn
Farmacie Farmacie div#homepage-search > ul.d-flex > li > button.btn

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

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.container > div.row > div.dp-carousel > button.dp-carousel-nav div.container > div.row > div.dp-carousel > button.dp-carousel-nav

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.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Rifiuto div#onetrust-button-group-parent > div#onetrust-button-group > div.banner-actions-container > button#onetrust-reject-all-handler
Accetto div#onetrust-button-group-parent > div#onetrust-button-group > div.banner-actions-container > button#onetrust-accept-btn-handler

Low-contrast text is difficult or impossible for many users to read. Link text that is discernible improves the experience for users with low vision. Learn how to make links distinguishable.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Altro div.comment-container > blockquote.unstyled-blockquote > p > a.text-underline
Altro div.comment-container > blockquote.unstyled-blockquote > p > a.text-underline
Altro div.comment-container > blockquote.unstyled-blockquote > p > a.text-underline

These are opportunities to improve the legibility of your content.

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
In studio In studio div.col-lg-8 > div#homepage-search > ul.d-flex > li
Online Online div.col-lg-8 > div#homepage-search > ul.d-flex > li
Farmacie Farmacie div.col-lg-8 > div#homepage-search > ul.d-flex > li

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

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
policy sulla privacy ed i cookies. 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-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
Image elements have `[alt]` attributes
Form elements have associated labels
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
Document has a `<title>` element
`<html>` element has a `[lang]` attribute
`<html>` element has a valid value for its `[lang]` attribute
Links have a discernible name
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
No element has a `[tabindex]` value greater than 0
Touch targets have sufficient size and spacing.
Heading elements appear in a sequentially-descending order
Document has a main landmark.
Deprecated ARIA roles were not used
Uses ARIA roles only on compatible elements
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
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 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.
`[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.
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
[GSI_LOGGER]: FedCM get() rejects with NetworkError: Error retrieving a token.
Not signed in with the identity provider.
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
Page has valid source maps
Redirects HTTP traffic to HTTPS
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`

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