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Lighthouse Mobile

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

Audit breakdown by category with detailed findings.

26

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
/uploads/media/2026/04/14/armando-bojorquez-dueno-agencia...0.0 ms179.2 KiB
cdn.milenio.com/uploads/media/2025/10/22/columna-denise-maerker.jpg0.0 ms98.4 KiB
cdn.tinypass.com/api/tinypass.min.js14400.0 s132.2 KiB
/uploads/media/2025/09/08/manuel-roberto-farias-laguna-ca...0.0 ms75.6 KiB
c.amazon-adsystem.com/aax2/apstag.js3600.0 s90.9 KiB
cdn.milenio.com/uploads/media/2025/10/23/carlos-marin.jpg0.0 ms70.6 KiB
cdn.milenio.com/uploads/media/2023/03/20/viri-rios.jpg0.0 ms61.2 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js3600.0 s73.1 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js3600.0 s73.1 KiB
/uploads/media/2026/04/15/sobrepoblacion-especies-borrego...0.0 ms54.4 KiB
sdk.mrf.io/statics/marfeel-sdk.js?id=4231800.0 s59.2 KiB
cdn.milenio.com/uploads/media/2023/03/13/hector-aguilar-camin-op.jpg0.0 ms42.1 KiB
cdn.cxense.com/cx.js3600.0 s38.1 KiB
cdn.cxense.com/cx.js3600.0 s38.1 KiB
cdn.id5-sync.com/api/1.0/esp.js3600.0 s34.7 KiB
cdn.id5-sync.com/api/1.0/id5-api.js3600.0 s34.3 KiB
/uploads/media/2026/04/15/espinoza-rochin-formaba-partido...0.0 ms27.1 KiB
/pagead/managed/js/adsense/m202604100101/show_ads_impl.js1209600.0 s197.3 KiB
sdk.mrf.io/statics/0639f9e9af1a7496d5c3.js3600.0 s24.0 KiB
www.google-analytics.com/analytics.js7200.0 s20.9 KiB
/uploads/media/2026/04/15/shock-chino-avalancha-productos...0.0 ms15.1 KiB
/uploads/media/2026/04/15/sheinbaum-presenta-cientificos-...0.0 ms12.2 KiB
/uploads/media/2026/04/15/pt-priorizo-supervivencia-media...0.0 ms11.8 KiB
cdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.es6.js?v=160603259200.0 s42.0 KiB
connectid.analytics.yahoo.com/connectId-gpt.js3600.0 s9.0 KiB
static.criteo.net/js/ld/publishertag.ids.js86400.0 s14.8 KiB
cdn.cxense.com/cx.cce.js3600.0 s6.8 KiB
tags.crwdcntrl.net/lt/c/16589/sync.min.js86400.0 s13.2 KiB
cdn.cxense.com/ari.js3600.0 s6.3 KiB
sdk.mrf.io/statics/compass-multimedia-sdk.js?version=22583600.0 s4.3 KiB
sb.scorecardresearch.com/internal-cs/default/beacon-and.js86400.0 s7.8 KiB
pub.mundialmedia.dev/milenio.com/milenio_com_mw_300x250.js0.0 ms3.0 KiB
invstatic101.creativecdn.com/encrypted-signals/encrypted-tag-g.js0.0 ms2.9 KiB
adserv.mobi/tagcontainer/extraV2.js3600.0 s3.4 KiB
dmp.im-apps.net/secure-signal/provider.js3600.0 s2.5 KiB
api.onesignal.com/sync/0966a9bb-74f4-439d-987c-1654b364d9ad/web?callback=__jp03600.0 s2.4 KiB
www.npttech.com/advertising.js28800.0 s3.0 KiB
/c12298c2-dc7e-4fae-9c78-6b310842c85e/launchpad-liveramp.js0.0 ms1.5 KiB
cdn.mgaru.dev/static/myGaruStandalone.js14400.0 s2.1 KiB
id5-sync.com/c/1618/0/8/1.gif?gdpr=0&gdpr_consent=&us_privacy=0.0 ms1.0 KiB
id5-sync.com/c/1618/0/8/1.gif?gdpr=0&gdpr_consent=&us_privacy=0.0 ms1.0 KiB
config.aps.amazon-adsystem.com/configs/d67775a1-96af-40f1-a6e2-d7f240d8e71d3600.0 s1.0 KiB
/Repo/rep.gif?ver=3.3.0&typ=pgv&rnd=mo0o7bmgqgmenvus&sid=...0.0 ms413 B
/p2?c1=8&c2=11335631&c3=1&ns_ap_it=b&rn=1...0.0 ms300 B
/p2?c1=8&c2=11335631&c3=1&ns_ap_it=b&rn=7...0.0 ms299 B
/id5?id5uid=ID5*mLvc4_7UrKj8rRiChlIPMFjnEhHdQmUo1Zrm3jzOz...0.0 ms254 B
cdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.js259200.0 s903 B
/id5?id5uid=ID5*mizzsfxDg_r-OjfQhMUgYlpwPUPf1Up61w3JjD5Z4...0.0 ms155 B
pagead2.googlesyndication.com/pagead/osd.js?fcd=true3600.0 s76 B
/getuid?gdpr=0&url=https://api.retargetly.com/sync?pid=74...0.0 ms44 B
/AdServer/UCookieSetPug?rd=https%3a%2f%2fapi.retargetly.c...0.0 ms42 B
/pagead/managed/js/activeview/current/ufs_web_display.js3600.0 s0 B
/pagead/managed/js/activeview/current/ufs_web_display.js3600.0 s0 B
/pagead/managed/js/activeview/current/ufs_web_display.js3600.0 s0 B
cdn.id5-sync.com/api/1.0/id5-api.js3600.0 s0 B
www.google-analytics.com/analytics.js7200.0 s0 B
adserv.mobi/tagcontainer/extraV2.js3600.0 s0 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:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:75.419 source:map[type:text value:[unattributed]]]]

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-IMG
nodeLabel: Sheinbaum presenta a científicos en Palacio Nacional.
path: 1,HTML,1,BODY,3,DIV,2,MAIN,0,DIV,1,DIV,7,SECTION,0,DIV,0,ARTICLE,1,PICTURE,1,IMG
selector: div.card-group > article.oo-medium-image-base > picture.oo-medium-image-base__picture > img.oo-medium-image-base__img
snippet: <img alt="Sheinbaum presenta a científicos en Palacio Nacional." class="oo-medium-image-base__img" data-camus-image="" data-camus-toolbar-image-position="topleft" src="https://cdn.milenio.com/uploads/media/2026/04/15/sheinbaum-presenta-cienti…" height="300" width="300" onerror="this.onerror=null;this.src=\'/bundles/appcamusassets/dist/images/placehold…" loading="lazy">

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
Armando Bojórquez dueño de la agencia Viajes Bojórquez. div.card-group > article.sn-base-base > picture.sn-base-base__picture > img.sn-base-base__img
/uploads/media/2026/04/14/armando-bojorquez-dueno-agencia...178.6 KiB166.8 KiB
ul.lr-list-row-row-left-image__container > li.lr-list-row-row-left-image__author > picture.lr-list-row-row-left-image__picture > img.lr-list-row-row-left-image__img ul.lr-list-row-row-left-image__container > li.lr-list-row-row-left-image__author > picture.lr-list-row-row-left-image__picture > img.lr-list-row-row-left-image__img
cdn.milenio.com/uploads/media/2025/10/22/columna-denise-maerker.jpg97.9 KiB97.4 KiB
ul.lr-list-row-row-left-image__container > li.lr-list-row-row-left-image__author > picture.lr-list-row-row-left-image__picture > img.lr-list-row-row-left-image__img ul.lr-list-row-row-left-image__container > li.lr-list-row-row-left-image__author > picture.lr-list-row-row-left-image__picture > img.lr-list-row-row-left-image__img
cdn.milenio.com/uploads/media/2025/10/23/carlos-marin.jpg70.1 KiB69.7 KiB
Manuel Roberto Farías Laguna | Captura div.card-group > article.sn-base-base > picture.sn-base-base__picture > img.sn-base-base__img
/uploads/media/2025/09/08/manuel-roberto-farias-laguna-ca...75.0 KiB68.5 KiB
ul.lr-list-row-row-left-image__container > li.lr-list-row-row-left-image__author > picture.lr-list-row-row-left-image__picture > img.lr-list-row-row-left-image__img ul.lr-list-row-row-left-image__container > li.lr-list-row-row-left-image__author > picture.lr-list-row-row-left-image__picture > img.lr-list-row-row-left-image__img
cdn.milenio.com/uploads/media/2023/03/20/viri-rios.jpg60.7 KiB60.3 KiB
Hector Aguilar Camín Op ul.lr-list-row-row-left-image__container > li.lr-list-row-row-left-image__author > picture.lr-list-row-row-left-image__picture > img.lr-list-row-row-left-image__img
cdn.milenio.com/uploads/media/2023/03/13/hector-aguilar-camin-op.jpg41.6 KiB41.2 KiB
Hoy hay sobrepoblación de especies como borregos muflones, cebras, ciervos, ven… div.ctr-modules-sidebar-left__container > article.sn-base-bottom-text > picture.sn-base-bottom-text__picture > img.sn-base-bottom-text__img
/uploads/media/2026/04/15/sobrepoblacion-especies-borrego...53.9 KiB31.1 KiB
Espinoza Rochín formaba parte del Partido de la Revolución Democrática (PRD). |… div.ctr-modules-sidebar-left__container > article.sn-base-base > picture.sn-base-base__picture > img.sn-base-base__img
/uploads/media/2026/04/15/espinoza-rochin-formaba-partido...26.7 KiB19.6 KiB
Shock chino 2.0: la avalancha de productos de alta tecnología article.sn-base-centered > div.sn-base-centered__container > picture.sn-base-centered__picture > img.sn-base-centered__img
/uploads/media/2026/04/15/shock-chino-avalancha-productos...14.7 KiB7.4 KiB
PT article.sn-base-centered > div.sn-base-centered__container > picture.sn-base-centered__picture > img.sn-base-centered__img
/uploads/media/2026/04/15/pt-priorizo-supervivencia-media...11.3 KiB4.1 KiB

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

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

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: 759 ms
URLTime Spent
milenio.com/759 ms
www.milenio.com/0.0 ms

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

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.

URLTotal CPU TimeScript EvaluationScript Parse
/pagead/managed/js/gpt/m202604100101/pubads_impl.js3.6 s2.9 s423 ms
Unattributable3.2 s1.3 s0.0 ms
/pagead/managed/js/activeview/current/ufs_web_display.js1.1 s902 ms68 ms
cdn.tinypass.com/api/tinypass.min.js884 ms720 ms81 ms
www.milenio.com/794 ms44 ms6.6 ms
sdk.mrf.io/statics/marfeel-sdk.js?id=423712 ms668 ms1.2 ms
www.milenio.com/bundles/appcamusassets/dist/assets/stimulus-only-38697628.js676 ms638 ms0.3 ms
www.googletagmanager.com/gtm.js?id=GTM-WWZ9QB509 ms425 ms71 ms
cdn.id5-sync.com/api/1.0/id5-api.js464 ms352 ms65 ms
c.amazon-adsystem.com/aax2/apstag.js442 ms368 ms51 ms
fundingchoicesmessages.google.com/i/15764254?ers=3420 ms359 ms42 ms
cdn.cxense.com/cx.js411 ms293 ms13 ms
www.milenio.com/bundles/appcamusassets/dist/assets/prebid-66232ae7.js407 ms229 ms1.5 ms
www.googletagmanager.com/gtag/js?id=G-RFEEM60NSQ&cx=c&gtm=4e64e1&bs=ctrl2385 ms326 ms53 ms
securepubads.g.doubleclick.net/tag/js/gpt.js289 ms233 ms54 ms
ep2.adtrafficquality.google/sodar/sodar2.js287 ms212 ms13 ms
cdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.es6.js?v=160603165 ms118 ms16 ms
www.google-analytics.com/analytics.js134 ms93 ms25 ms
api.retargetly.com/loader?id=3540124 ms118 ms3.3 ms
/ats-modules/f6c3986e-4f39-432a-985c-d2772c92af7b/ats.js123 ms96 ms26 ms
adserv.mobi/tagcontainer/extraV2.js122 ms119 ms0.9 ms
/f/AGSKWxX3Chqb6GZ7reHBRfHN1jXo1w9SYN5gxwMTqVC3_PF74YcTqx...116 ms105 ms2.3 ms
/bundles/appcamusassets/dist/js/header_controller-1772810...108 ms68 ms0.2 ms
www.googletagmanager.com/gtag/js?id=G-RFEEM60NSQ105 ms39 ms65 ms
tags.crwdcntrl.net/lt/c/16589/sync.min.js104 ms88 ms5.6 ms
/_/mss/boq-content-ads-contributor/_/js/k=boq-content-ads...103 ms22 ms0.0 ms
launchpad.privacymanager.io/latest/launchpad.bundle.js90 ms67 ms19 ms
cdn.id5-sync.com/api/1.0/esp.js83 ms46 ms29 ms
static.criteo.net/js/ld/publishertag.ids.js72 ms65 ms6.3 ms
/c12298c2-dc7e-4fae-9c78-6b310842c85e/launchpad-liveramp.js71 ms69 ms0.5 ms
accounts.google.com/gsi/client68 ms35 ms32 ms
config.aps.amazon-adsystem.com/configs/d67775a1-96af-40f1-a6e2-d7f240d8e71d67 ms65 ms0.9 ms
oa.openxcdn.net/esp.js67 ms62 ms4.4 ms
cdn.cxense.com/ari.js66 ms64 ms1.7 ms
/f/AGSKWxW-miYunLPswF-jOSRq2aoz72qf-9tL6kzNmrKeYFks5p2gdP...63 ms56 ms1.9 ms
/f/AGSKWxVQqNEaA8SKeU_vToDW7HLUPq9LfFQ5cBS9_Qbj_vQpt1zLba...61 ms52 ms0.9 ms
sb.scorecardresearch.com/cs/6906371/beacon.js55 ms47 ms2.4 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

CategoryTime Spent
Script Evaluation12.5 s
Other2.9 s
Script Parsing & Compilation1.2 s
Style & Layout510 ms
Garbage Collection290 ms
Rendering249 ms
Parse HTML & CSS154 ms

Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reasonFailure type
The page has an unload handler in the main frame.Actionable
The page has an unload handler in a sub frame.Actionable

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 12.7 KiB
URLTransfer SizeEst Savings
launchpad.privacymanager.io/latest/launchpad.bundle.js40.3 KiB12.7 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 52.6 KiB

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
Render blocking requests
Optimize viewport for mobile
Minify CSS
User Timing marks and measures 17 user timings
Avoid long main-thread tasks 20 long tasks found
Image elements have explicit `width` and `height`
Network Requests
Network Round Trip Times 180 ms
Server Backend Latencies 200 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 10 ms
Avoid large layout shifts 1 layout shift found
INP breakdown
Avoid non-composited animations
86

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
logo-user header#main-header > div.navbar > div.navbar__right > button.account-icon-mobile

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
Naasón Joaquín García admitió su culpabilidad por abusos, mientras en México la… article.sn-opinion-descriptive > ul.sn-opinion-descriptive__container > li.sn-opinion-descriptive__abstract > span
M2 section.ctr-modules-base > div.card-group > header.eo-billboard-section-image-secondary > h2.eo-billboard-section-image-secondary__title

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
La espía perfecta del ‘Che’: vivió tres vidas en América Latina REPORTAJE Vale… div.card-group > section.ctr-modules-markup-centered > div.ctr-modules-markup-centered__container > li.lr-list-row-row-picture
Más guapas, más caras: TikTok dispara negocio millonario CRÓNICA José Ramón Hue… div.card-group > section.ctr-modules-markup-centered > div.ctr-modules-markup-centered__container > li.lr-list-row-row-picture

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

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>`
`[aria-*]` attributes have valid values
`[aria-*]` attributes are valid and not misspelled
Image elements have `[alt]` attributes
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
ARIA attributes are used as specified for the element's role
`[aria-hidden="true"]` elements do not contain focusable descendents
Elements use only permitted ARIA attributes
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 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.
All heading elements contain content.
Image elements do not have `[alt]` attributes that are redundant text.
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
Deprecated ARIA roles were not used
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
`[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
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
`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
Input buttons have discernible text.
`<input type="image">` elements have `[alt]` text
Form elements have associated labels
Links are distinguishable without relying on color.
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>`.
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.
77

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 / WarningSource
Topics
SharedStorage

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 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 clickjacking with XFO or CSP
Mitigate DOM-based XSS with Trusted Types
Detected JavaScript libraries
Page has valid source maps
Redirects HTTP traffic to HTTPS
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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