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· 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.

51

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.

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.

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.

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:53.854 source:map[column:62254 line:2 type:source-location url:https://browser.sentry-cdn.com/7.64.0/bundle.tracing.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:150.491 source:map[type:text value:[unattributed]]] map[reflowTime:7.911 source:map[column:103882 line:4 type:source-location url:https://www.mi.com/sgp/spps_files/store/0.55.75/js/es/index.js urlProvider:network]] map[reflowTime:17.347 source:map[column:45586 line:4 type:source-location url:https://www.mi.com/sgp/spps_files/store/0.55.75/js/es/index.js urlProvider:network]] map[reflowTime:122.025 source:map[column:39585 line:4 type:source-location url:https://www.mi.com/sgp/spps_files/store/0.55.75/js/es/index.js urlProvider:network]] map[reflowTime:0.406 source:map[column:45103 line:9 type:source-location url:https://s.go-mpulse.net/boomerang/CGK7X-KWLZ2-9JBMW-YPK4H-NXS33 urlProvider:network]] map[reflowTime:4.681 source:map[column:176164 line:0 type:source-location url:https://www.mi.com/sgp/spps_files/i18n/scripts/shared-header/pro/1.0.87/705.b9111.js urlProvider:network]] map[reflowTime:2.916 source:map[column:40631 line:0 type:source-location url:https://www.mi.com/sgp/spps_files/i18n/scripts/shared-header/pro/1.0.87/705.b9111.js urlProvider:network]] map[reflowTime:0.573 source:map[column:189308 line:4 type:source-location url:https://www.mi.com/sgp/spps_files/store/0.55.75/js/es/index.js urlProvider:network]] map[reflowTime:6.291 source:map[column:172567 line:0 type:source-location url:https://www.mi.com/sgp/spps_files/i18n/scripts/shared-header/pro/1.0.87/705.b9111.js urlProvider:network]] map[reflowTime:3.181 source:map[column:5 line:16 type:source-location url:https://consent.trustarc.com/asset/notice.js/v/v1.7-1729 urlProvider:network]] map[reflowTime:0.18 source:map[column:246203 line:4 type:source-location url:https://www.mi.com/sgp/spps_files/store/0.55.75/js/es/index.js urlProvider:network]] map[reflowTime:1.593 source:map[column:24013 line:0 type:source-location url:https://consent.trustarc.com/notice?domain=xiaomi.com&c=teconsent&js=nj&noticeType=bb&text=true&gtm=1&country=es&language=es_es&privacypolicylink=//www.mi.com/es/support/policy/cookie-policy urlProvider:network]]]

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:2219.202 label:Time to first byte subpart:timeToFirstByte] map[duration:15.643 label:Resource load delay subpart:resourceLoadDelay] map[duration:77.79 label:Resource load duration subpart:resourceLoadDuration] map[duration:838.751 label:Element render delay subpart:elementRenderDelay]]

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

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.

URLTransfer SizeDuration
i02.appmifile.com/i18n/local-config/pro/es.config.js1.2 KiB263 ms
/xiaomi-b2c-i18n-upload/i18n/micon/iconfont.css?t=1769413...65.4 KiB406 ms
i05.appmifile.com/i18n/fonts/MiSansLatin/index.css2.1 KiB211 ms
www.mi.com/sgp/spps_files/store/0.55.75/js/68318.chunk.js6.8 KiB
www.mi.com/sgp/spps_files/store/0.55.75/js/52498.chunk.js7.7 KiB
www.mi.com/sgp/spps_files/store/0.55.75/js/support-web-home.chunk.js1.6 KiB
www.mi.com/sgp/spps_files/store/0.55.75/js/explore-xiaomi.chunk.js6.9 KiB
www.mi.com/sgp/spps_files/store/0.55.75/js/45375.chunk.js7.0 KiB
www.mi.com/sgp/spps_files/store/0.55.75/css/Editable.chunk.css1.7 KiB
www.mi.com/sgp/spps_files/store/0.55.75/js/exclusive-offers.chunk.js8.2 KiB
www.mi.com/sgp/spps_files/store/0.55.75/js/30305.chunk.js22.9 KiB82 ms
www.mi.com/sgp/spps_files/store/0.55.75/js/featured-tabs.chunk.js5.4 KiB
www.mi.com/sgp/spps_files/store/0.55.75/js/32875.chunk.js3.1 KiB
www.mi.com/sgp/spps_files/store/0.55.75/js/carousel-banner.chunk.js7.8 KiB
www.mi.com/sgp/spps_files/store/0.55.75/js/55319.chunk.js4.1 KiB
www.mi.com/sgp/spps_files/store/0.55.75/js/70675.chunk.js5.2 KiB
www.mi.com/sgp/spps_files/store/0.55.75/css/es/index.css29.3 KiB
www.mi.com/sgp/spps_files/store/0.55.75/css/featured-tabs.chunk.css4.6 KiB
www.mi.com/sgp/spps_files/store/0.55.75/css/carousel-banner.chunk.css4.1 KiB
www.mi.com/sgp/spps_files/store/0.55.75/js/Editable.chunk.js1.3 KiB
www.mi.com/sgp/spps_files/store/0.55.75/js/64807.chunk.js5.1 KiB
www.mi.com/sgp/spps_files/store/0.55.75/css/explore-xiaomi.chunk.css3.4 KiB
www.mi.com/sgp/spps_files/store/0.55.75/js/60521.chunk.js3.3 KiB
www.mi.com/sgp/spps_files/store/0.55.75/css/support-web-home.chunk.css1.3 KiB
www.mi.com/sgp/spps_files/store/0.55.75/js/2134.chunk.js10.0 KiB
www.mi.com/sgp/spps_files/store/0.55.75/css/exclusive-offers.chunk.css2.9 KiB
www.mi.com/sgp/spps_files/store/0.55.75/css/57477.chunk.css2.3 KiB
www.mi.com/sgp/spps_files/i18n/fonts/POCOTechCool/index.css881 B

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
Xiaomi Fan Festival 2026 div.swiper-slide > div.carousel-banner__slide > picture.mi-image > img.mi-image__img
/27_operator_es/05/04/2026/1cc0e51dc68c8c8d76fc0bcc9df49a...176.2 KiB105.8 KiB
Xiaomi 17 Ultra div.swiper-slide > div.carousel-banner__slide > picture.mi-image > img.mi-image__img
/727_operator_es/16/04/2026/a5bf2679186b822db6ddd34c01f05...119.3 KiB71.6 KiB
Xiaomi 15T Pro div.swiper-slide > div.carousel-banner__slide > picture.mi-image > img.mi-image__img
/45_operator_es/01/04/2026/5a94d9381b9a54c0401d79b136455c...61.0 KiB36.6 KiB
Video Cover Image Xiaomi HyperOS 3 div > div.explore-pc__slide-img > picture.mi-image > img.mi-image__img
/341_operator_es/27/03/2026/be83665a5106e13dd94801174ab84...41.9 KiB6.7 KiB
div.mi-energy-label-new > div.mi-energy-label-new__item > a.mi-energy-label-new__link > img.mi-energy-label-new__image div.mi-energy-label-new > div.mi-energy-label-new__item > a.mi-energy-label-new__link > img.mi-energy-label-new__image
i05.appmifile.com/energy/a-g/Class_Arrows_AG_G.png4.3 KiB4.2 KiB

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: 2.4 s
URLTime Spent
xiaomi.com/2.2 s
www.mi.com/229 ms
www.mi.com/es/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 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.

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
Other2.4 s
Script Evaluation2.0 s
Style & Layout1.4 s
Rendering1.2 s
Script Parsing & Compilation128 ms
Garbage Collection84 ms
Parse HTML & CSS49 ms

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
El logo de Xiaomi HyperAI, junto a la marca roja de Leica. El diseño general es… div.slide__content > div.slide__info > div.slide__info-group > img.slide__svg
/798_operator_es/01/04/2026/3a90dbd7a5c4b94999c6cac6d3a93...
El logo de Xiaomi HyperAI, junto a la marca roja de Leica. El diseño general es… div.slide__content > div.slide__info > div.slide__info-group > img.slide__svg
/798_operator_es/01/04/2026/3a90dbd7a5c4b94999c6cac6d3a93...
El logo de Xiaomi HyperAI, junto a la marca roja de Leica. El diseño general es… div.slide__content > div.slide__info > div.slide__info-group > img.slide__svg
/798_operator_es/01/04/2026/3a90dbd7a5c4b94999c6cac6d3a93...
El logotipo y el nombre de la marca Leica. Los colores del logotipo son negro y… div.slide__content > div.slide__info > div.slide__info-group > img.slide__svg
/794_operator_es/16/04/2026/16ac8874888bd56464ddf2bbe13ca...
El logotipo y el nombre de la marca Leica. Los colores del logotipo son negro y… div.slide__content > div.slide__info > div.slide__info-group > img.slide__svg
/794_operator_es/16/04/2026/16ac8874888bd56464ddf2bbe13ca...
El logotipo y el nombre de la marca Leica. Los colores del logotipo son negro y… div.slide__content > div.slide__info > div.slide__info-group > img.slide__svg
/794_operator_es/16/04/2026/16ac8874888bd56464ddf2bbe13ca...
Aire acondicionado Mijia Eco. div.slide__content > div.slide__info > div.slide__info-group > img.slide__svg
/898_operator_es/15/04/2026/b0f62ef92475d3a3b9ab5156c0a92...
Aire acondicionado Mijia Eco. div.slide__content > div.slide__info > div.slide__info-group > img.slide__svg
/898_operator_es/15/04/2026/b0f62ef92475d3a3b9ab5156c0a92...
Aire acondicionado Mijia Eco. div.slide__content > div.slide__info > div.slide__info-group > img.slide__svg
/898_operator_es/15/04/2026/b0f62ef92475d3a3b9ab5156c0a92...
div.mi-energy-label-new > div.mi-energy-label-new__item > a.mi-energy-label-new__link > img.mi-energy-label-new__image div.mi-energy-label-new > div.mi-energy-label-new__item > a.mi-energy-label-new__link > img.mi-energy-label-new__image
i05.appmifile.com/energy/a-g/Class_Arrows_AG_A.png
div.mi-energy-label-new > div.mi-energy-label-new__item > a.mi-energy-label-new__link > img.mi-energy-label-new__image div.mi-energy-label-new > div.mi-energy-label-new__item > a.mi-energy-label-new__link > img.mi-energy-label-new__image
i05.appmifile.com/energy/a-g/Class_Arrows_AG_A.png
div.mi-energy-label-new > div.mi-energy-label-new__item > a.mi-energy-label-new__link > img.mi-energy-label-new__image div.mi-energy-label-new > div.mi-energy-label-new__item > a.mi-energy-label-new__link > img.mi-energy-label-new__image
i05.appmifile.com/energy/a-g/Class_Arrows_AG_A.png
div.mi-energy-label-new > div.mi-energy-label-new__item > a.mi-energy-label-new__link > img.mi-energy-label-new__image div.mi-energy-label-new > div.mi-energy-label-new__item > a.mi-energy-label-new__link > img.mi-energy-label-new__image
i05.appmifile.com/energy/a-g/Class_Arrows_AG_A.png
div.mi-energy-label-new > div.mi-energy-label-new__item > a.mi-energy-label-new__link > img.mi-energy-label-new__image div.mi-energy-label-new > div.mi-energy-label-new__item > a.mi-energy-label-new__link > img.mi-energy-label-new__image
i05.appmifile.com/energy/a-g/Class_Arrows_AG_A.png
div.mi-energy-label-new > div.mi-energy-label-new__item > a.mi-energy-label-new__link > img.mi-energy-label-new__image div.mi-energy-label-new > div.mi-energy-label-new__item > a.mi-energy-label-new__link > img.mi-energy-label-new__image
i05.appmifile.com/energy/a-g/Class_Arrows_AG_A.png
div.mi-energy-label-new > div.mi-energy-label-new__item > a.mi-energy-label-new__link > img.mi-energy-label-new__image div.mi-energy-label-new > div.mi-energy-label-new__item > a.mi-energy-label-new__link > img.mi-energy-label-new__image
i05.appmifile.com/energy/a-g/Class_Arrows_AG_B.png
div.mi-energy-label-new > div.mi-energy-label-new__item > a.mi-energy-label-new__link > img.mi-energy-label-new__image div.mi-energy-label-new > div.mi-energy-label-new__item > a.mi-energy-label-new__link > img.mi-energy-label-new__image
i05.appmifile.com/energy/a-g/Class_Arrows_AG_B.png
div.mi-energy-label-new > div.mi-energy-label-new__item > a.mi-energy-label-new__link > img.mi-energy-label-new__image div.mi-energy-label-new > div.mi-energy-label-new__item > a.mi-energy-label-new__link > img.mi-energy-label-new__image
i05.appmifile.com/energy/a-g/Class_Arrows_AG_G.png

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

Layout shift culprits
Optimize DOM size
LCP request discovery
Modern HTTP
Optimize viewport for mobile
Minify CSS
Minify JavaScript
User Timing marks and measures 1 user timing
Avoid long main-thread tasks 7 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 290 ms
Server Backend Latencies 1,360 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 30 ms
Avoid large layout shifts 4 layout shifts found
INP breakdown
79

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
Tienda nav.main-menu__nav-list > div.main-menu__nav-tab > div.main-menu__nav-tab__title > div.main-menu-item
Móvil nav.main-menu__nav-list > div.main-menu__nav-tab > div.main-menu__nav-tab__title > div.main-menu-item
Wearables nav.main-menu__nav-list > div.main-menu__nav-tab > div.main-menu__nav-tab__title > div.main-menu-item
Smart Home nav.main-menu__nav-list > div.main-menu__nav-tab > div.main-menu__nav-tab__title > div.main-menu-item
Estilo de vida nav.main-menu__nav-list > div.main-menu__nav-tab > div.main-menu__nav-tab__title > div.main-menu-item
POCO nav.main-menu__nav-list > div.main-menu__nav-tab > div.main-menu__nav-tab__title > div.main-menu-item
Explorar div.shared-header__navigation-right > ul.side-menu > li.side-menu__item > div.main-menu-item
Ayuda div.shared-header__navigation-right > ul.side-menu > li.side-menu__item > div.main-menu-item
Community div.shared-header__navigation-right > ul.side-menu > li.side-menu__item > div.main-menu-item

Assistive technologies, like screen readers, can't interpret ARIA attributes with invalid values. Learn more about valid values for ARIA attributes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Xiaomi Fan Festival div.feature-tab__container > div.feature-tab__header > div.tab-header__wrapper > div#tab-0

Using ARIA attributes in roles where they are prohibited can mean that important information is not communicated to users of assistive technologies. Learn more about prohibited ARIA roles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Cerrar div > div.ribbon-ads > div.ribbon-ads__container > i.micon
Previous div.exclusive-offers > div.exclusive-offers__header > div.exclusive-offers__header-arrow > i.micon
Siguiente div.exclusive-offers > div.exclusive-offers__header > div.exclusive-offers__header-arrow > i.micon

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.

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
Xiaomi Fan Festival div.feature-tab__header > div.tab-header__wrapper > div#tab-0 > h3
Ajustes de Cookies div.truste-consent-track-class > div#truste-consent-content > div#truste-consent-buttons > button#truste-show-consent
Aceptar todo div.truste-consent-track-class > div#truste-consent-content > div#truste-consent-buttons > button#truste-consent-button
Rechazar todo div.truste-consent-track-class > div#truste-consent-content > div#truste-consent-buttons > button#truste-consent-required

These are opportunities to improve the legibility of your content.

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
Please enter email div.site-footer__connect > div.site-footer__form > div.site-footer__input > button.mi-btn

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
Chat en directo div.customer-service > div.customer-service__options > div.customer-service__live-chat-container > div.mi-livechat
Preferencia de cookies div.site-footer__settings > div.site-footer__cookie > span#teconsent > a#icon-id024430828283032824
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]`s are contained by their required parent element
`[role]` values are valid
`[aria-*]` attributes are valid and not misspelled
Buttons have an accessible name
Image elements have `[alt]` attributes
Form elements have associated labels
`button`, `link`, and `menuitem` elements have accessible names
ARIA attributes are used as specified for the element's role
`[aria-hidden="true"]` elements do not contain focusable descendents
Document has a `<title>` element
`<frame>` or `<iframe>` elements have a title
`<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
Heading elements appear in a sequentially-descending order
`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
Document has a main landmark.
Deprecated ARIA roles were not used
Image elements do not have `[alt]` attributes that are redundant text.
Identical links have the same purpose.
`[accesskey]` values are unique
Elements with `role="dialog"` or `role="alertdialog"` 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
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
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.

Description
A bad HTTP response code (403) was received when fetching the script.

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.

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
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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
Image elements have `[alt]` attributes
Document has a valid `hreflang`
Document has a valid `rel=canonical`
robots.txt is valid

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