Lighthouse Mobile

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

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Detailed Report

Audit breakdown by category with detailed findings.

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling

Why this matters

Performance issues directly impact user engagement and conversion rates.

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Request	Cache TTL	Transfer Size
cdn.amplitude.com/script/62343d139fdc2df258c55c6d560bf5e9.experiment.js	60.0 s	91.6 KiB
www.emarketer.com/iiana/dist/harvester.min.js	0.0 ms	80.0 KiB
cdn.evgnet.com/beacon/emarketerinc/engage/scripts/evergage.min.js	120.0 s	49.6 KiB
cmp.osano.com/Azq8alSrat37T4I48/e5bec6e1-e8a6-4269-aec2-3c45025cbf21/osano-ui.js	86400.0 s	29.2 KiB
/cdn-cgi/challenge-platform/h/b/scripts/jsd/0b8fb825cb67/...	14400.0 s	12.2 KiB
snap.licdn.com/li.lms-analytics/insight.min.js	85419.0 s	18.7 KiB
www.emarketer.com/consentmanagement/dist/overrides.min.js	0.0 ms	4.1 KiB
/maze-universal-loader.js?t=1776803157841&apiKey=e7cac3fb...	43200.0 s	2.7 KiB
www.emarketer.com/uploads/css/glide.theme_.min_.css	0.0 ms	629 B
www.emarketer.com/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js	2868.0 s	740 B
/faviconV2?client=SOCIAL&type=FAVICON&fallback_opts=TYPE,...	604800.0 s	5.5 KiB
www.emarketer.com/uploads/scripts/analytics/ads.js	0.0 ms	503 B
/collect?v=2&fmt=js&pid=3922218&time=1776803158180&li_ads...	0.0 ms	451 B
www.emarketer.com/uploads/css/glide.core_.min_.css	0.0 ms	428 B
fonts.emarketer.com/fonts.css	86400.0 s	1003 B
/faviconV2?client=SOCIAL&type=FAVICON&fallback_opts=TYPE,...	604800.0 s	2.8 KiB
/faviconV2?client=SOCIAL&type=FAVICON&fallback_opts=TYPE,...	604800.0 s	2.5 KiB
/faviconV2?client=SOCIAL&type=FAVICON&fallback_opts=TYPE,...	604800.0 s	2.1 KiB

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:43.512 source:map[type:text value:[unattributed]]]]

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Resource Size	Est Savings
img `div.Card-module__cardContainer___bS6mz > div.CarouselCard-module__flexContainer___2jCTF > a.CarouselCard-module__imageHyperlinkWrapper___4xwlh > img`	/static/c725244373b66d87f7577c7a1031c467/Edaily-Maximizin...	300.0 KiB	281.0 KiB
img `div.Card-module__cardContainer___bS6mz > div.CarouselCard-module__flexContainer___2jCTF > a.CarouselCard-module__imageHyperlinkWrapper___4xwlh > img`	/static/73bf77e72a80175dee810e18b69bc6ed/RetailDaily-Boos...	118.6 KiB	103.3 KiB
img `div.Card-module__cardContainer___bS6mz > div.CarouselCard-module__flexContainer___2jCTF > a.CarouselCard-module__imageHyperlinkWrapper___4xwlh > img`	/static/480aa6763d5a433ebd8303e8bb96f24c/Future-Of-Digita...	56.7 KiB	44.3 KiB
li.glide__slide > div.flex > a.flex > img.object-cover `li.glide__slide > div.flex > a.flex > img.object-cover`	/_gatsby/file/8411e163484778a3b9474434451236e3/net-conver...	32.4 KiB	32.1 KiB
img `div.Card-module__cardContainer___bS6mz > div.CarouselCard-module__flexContainer___2jCTF > a.CarouselCard-module__imageHyperlinkWrapper___4xwlh > img`	/static/bacf6a0fa8acc69c9bb5980d4c6856db/HomepageVisualsU...	40.8 KiB	28.8 KiB
img `div.Card-module__cardContainer___bS6mz > div.CarouselCard-module__flexContainer___2jCTF > a.CarouselCard-module__imageHyperlinkWrapper___4xwlh > img`	/static/25d432310ac51036b3531328d070d90e/cannes-2025-384x...	41.0 KiB	28.6 KiB
img `div.Card-module__cardContainer___bS6mz > div.CarouselCard-module__flexContainer___2jCTF > a.CarouselCard-module__imageHyperlinkWrapper___4xwlh > img`	www.emarketer.com/static/a73c13d49829cd3981b4226fb538905e/Carousel-Thumbnail.png	39.2 KiB	27.9 KiB
Video Thumbnail `div.gatsby-image-wrapper > div.gatsby-image-wrapper > picture > img`	/_gatsby/image/fd4b7d9d16737674d1c8013be598e2c4/6df459fb7...	37.4 KiB	25.7 KiB
li.glide__slide > div.mx-0 > a.flex > img.object-cover `li.glide__slide > div.mx-0 > a.flex > img.object-cover`	/_gatsby/file/9a325b091483b6badb01045774d43a86/dmg-logo.p...	12.8 KiB	11.3 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-9-DIV

nodeLabel: Smarter Insights, Faster Decisions. EMARKETER provides the gold standard for m…

path: 1,HTML,1,BODY,1,DIV,0,DIV,0,DIV,1,MAIN,3,DIV

selector: div#gatsby-focus-wrapper > div.px-0 > main.container > div.py-12

snippet: <div class="py-12 sm:py-16" style="background-image: url("https://publicsite-wordpress-storage-public.emarkete…");">

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

value: no origins were preconnected

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.

URL	Transfer Size	Duration
cmp.osano.com/Azq8alSrat37T4I48/e5bec6e1-e8a6-4269-aec2-3c45025cbf21/osano.js	55.7 KiB	1.6 s
cdn.amplitude.com/script/62343d139fdc2df258c55c6d560bf5e9.experiment.js	91.6 KiB	2.0 s
www.emarketer.com/iiana/dist/harvester.min.js	80.0 KiB	1.2 s
www.emarketer.com/styles.2c978559a5c5393998d0.css	37.6 KiB	758 ms
www.emarketer.com/consentmanagement/dist/overrides.min.js	4.1 KiB
www.emarketer.com/uploads/css/glide.core_.min_.css	428 B
www.emarketer.com/uploads/css/glide.theme_.min_.css	629 B

Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Est Savings
www.emarketer.com/static/fa-solid-900-54dfc8f551be346014e424fe36b4b0e3.woff2	20 ms

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

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 1.2 s

URL	Time Spent
emarketer.com/	1.2 s
www.emarketer.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.

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.

Estimated savings: 1.8 s 416.0 KiB

URL	Transfer Size	Est Savings
www.emarketer.com/7890cfa4-078212f57480d1a9e53b.js	183.2 KiB	110.4 KiB
www.googletagmanager.com/gtm.js?id=GTM-T5C96L	169.5 KiB	74.7 KiB
www.emarketer.com/iiana/dist/harvester.min.js	79.9 KiB	68.4 KiB
www.googletagmanager.com/gtag/js?id=G-XXYLHB9SXG&cx=c&gtm=4e64h1	177.4 KiB	55.7 KiB
www.emarketer.com/iiana/dist/harvester.min.js	79.9 KiB	44.3 KiB
www.emarketer.com/369-70e23700a0a13e7f8946.js	47.3 KiB	42.4 KiB
/37f748966a3af5f949c22d3fce06e037c1a05439-83ec05d29df8b0b...	34.6 KiB	20.2 KiB

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.

URL	Total CPU Time	Script Evaluation	Script Parse
www.emarketer.com/	1.3 s	140 ms	4.9 ms
www.emarketer.com/framework-1749e4bcf76f4c891bc6.js	1.2 s	1.0 s	28 ms
Unattributable	1.1 s	311 ms	0.0 ms
cmp.osano.com/Azq8alSrat37T4I48/e5bec6e1-e8a6-4269-aec2-3c45025cbf21/osano.js	881 ms	746 ms	32 ms
www.googletagmanager.com/gtag/js?id=G-XXYLHB9SXG&cx=c&gtm=4e64h1	696 ms	617 ms	73 ms
www.googletagmanager.com/gtm.js?id=GTM-T5C96L	478 ms	382 ms	71 ms
cdn.amplitude.com/script/62343d139fdc2df258c55c6d560bf5e9.experiment.js	419 ms	253 ms	166 ms
www.emarketer.com/iiana/dist/harvester.min.js	401 ms	270 ms	124 ms
www.emarketer.com/7890cfa4-078212f57480d1a9e53b.js	361 ms	235 ms	82 ms
www.emarketer.com/cdn-cgi/challenge-platform/scripts/jsd/main.js	354 ms	323 ms	4.3 ms
www.emarketer.com/app-8818dc2381116e198cb5.js	339 ms	280 ms	17 ms
j.6sc.co/6si.min.js	191 ms	166 ms	8.7 ms
cmp.osano.com/Azq8alSrat37T4I48/e5bec6e1-e8a6-4269-aec2-3c45025cbf21/osano-ui.js	100 ms	53 ms	17 ms
snap.licdn.com/li.lms-analytics/insight.min.js	98 ms	87 ms	6.8 ms
www.emarketer.com/108-2ba780acb82595125307.js	72 ms	50 ms	9.5 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.

Category	Time Spent
Script Evaluation	5.1 s
Other	1.3 s
Script Parsing & Compilation	754 ms
Style & Layout	623 ms
Rendering	269 ms
Parse HTML & CSS	160 ms
Garbage Collection	138 ms

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 9.8 KiB

URL	Transfer Size	Est Savings
unpkg.com/@glidejs/glide@3.4.1/dist/glide.js	16.6 KiB	9.8 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 33.6 KiB

URL	Transfer Size	Est Savings
www.emarketer.com/styles.2c978559a5c5393998d0.css	37.5 KiB	33.6 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
li.glide__slide > div.flex > a.flex > img.object-cover `li.glide__slide > div.flex > a.flex > img.object-cover`	/_gatsby/file/8411e163484778a3b9474434451236e3/net-conver...
li.glide__slide > div.mx-0 > a.flex > img.object-cover `li.glide__slide > div.mx-0 > a.flex > img.object-cover`	/_gatsby/file/9a325b091483b6badb01045774d43a86/dmg-logo.p...
Customer Statistics `div.container > div.sm:px-4 > picture > img.w-full`	/uploads/2021/07/21201108/Testimonial_Stats.svg
li.glide__slide > div.mb-10 > a.flex > img.object-cover `li.glide__slide > div.mb-10 > a.flex > img.object-cover`	/uploads/2021/07/22072026/adobe_horizontal.svg
li.glide__slide > div.mb-10 > a.flex > img.object-cover `li.glide__slide > div.mb-10 > a.flex > img.object-cover`	/_gatsby/file/920bea9ac329ab7a36df9db5b22c3bd5/shuttersto...
li.glide__slide > div.mb-10 > a.flex > img.object-cover `li.glide__slide > div.mb-10 > a.flex > img.object-cover`	/uploads/2021/07/22072027/tradedesk.svg

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

●Layout shift culprits

●Optimize DOM size

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Avoids enormous network payloads Total size was 2,616 KiB

●User Timing marks and measures 6 user timings

●Avoid long main-thread tasks 20 long tasks found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 130 ms

●Server Backend Latencies 560 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 290 ms

○INP breakdown

○Avoid non-composited animations

○Avoid large layout shifts

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.sm:px-4 > div > form.So9Z7v22cC0OzDj3fgYi > button.OZXE_BZ0I_Il2kJQSM_1 `div.sm:px-4 > div > form.So9Z7v22cC0OzDj3fgYi > button.OZXE_BZ0I_Il2kJQSM_1`

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
li.glide__slide > div.mb-10 > a.flex > img.object-cover `li.glide__slide > div.mb-10 > a.flex > img.object-cover`
li.glide__slide > div.mb-10 > a.flex > img.object-cover `li.glide__slide > div.mb-10 > a.flex > img.object-cover`

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
div.Branding-module__primaryBar___xF5qj > div.Widget-module__widgetWrapper___4ifOW > div.Widget-module__widgetButton___117tK > a.SearchButton-module__wrapper___yIStV `div.Branding-module__primaryBar___xF5qj > div.Widget-module__widgetWrapper___4ifOW > div.Widget-module__widgetButton___117tK > a.SearchButton-module__wrapper___yIStV`
ul.glide__slides > li.glide__slide > div.flex > a.flex `ul.glide__slides > li.glide__slide > div.flex > a.flex`
ul.glide__slides > li.glide__slide > div.mx-0 > a.flex `ul.glide__slides > li.glide__slide > div.mx-0 > a.flex`
ul.glide__slides > li.glide__slide > div.flex > a.flex `ul.glide__slides > li.glide__slide > div.flex > a.flex`
ul.glide__slides > li.glide__slide > div.flex > a.flex `ul.glide__slides > li.glide__slide > div.flex > a.flex`
ul.glide__slides > li.glide__slide > div.mb-10 > a.flex `ul.glide__slides > li.glide__slide > div.mb-10 > a.flex`
ul.glide__slides > li.glide__slide > div.mb-4 > a.flex `ul.glide__slides > li.glide__slide > div.mb-4 > a.flex`
ul.glide__slides > li.glide__slide > div.mb-10 > a.flex `ul.glide__slides > li.glide__slide > div.mb-10 > a.flex`
ul.glide__slides > li.glide__slide > div.mb-10 > a.flex `ul.glide__slides > li.glide__slide > div.mb-10 > a.flex`
ul.glide__slides > li.glide__slide > div.mb-10 > a.flex `ul.glide__slides > li.glide__slide > div.mb-10 > a.flex`

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
Accept `div.osano-cm-window > div#a352c055-7ac1-45b9-b158-3d2427505576 > div.osano-cm-dialog__buttons > button.osano-cm-accept`
Learn More `div.container > div.sm:px-4 > div.space-y-4 > a#hpcta_#_getademo`
Learn More `div.container > div.sm:px-4 > div.space-y-4 > a.btn-primary`
Become a Client `div.container > div.sm:px-4 > div.space-y-4 > a.btn-primary`
* Copyright © 2026 `div.Footer-module__footerWrapper___8gP5w > div.FooterFooter-module__container___awvxD > div.ResourceTray-module__resourceTrayContainer___8MW9X > div.ResourceTray-module__copyright___9oQOP`
EMARKETER Inc. All Rights Reserved. `div.Footer-module__footerWrapper___8gP5w > div.FooterFooter-module__container___awvxD > div.ResourceTray-module__resourceTrayContainer___8MW9X > div.ResourceTray-module__companyInc___1syXM`

These are opportunities to improve the legibility of your content.

Navigation

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Live & Virtual Events `div.Card-module__cardContainer___bS6mz > div.CarouselCard-module__flexContainer___2jCTF > a.CarouselCard-module__titleWrapper___pPc-E > h5.CarouselCard-module__title___l2fed`
Intel results to show if supply chain issues are dimming its AI ambitions `div.Card-module__cardContainer___bS6mz > div.CarouselCard-module__flexContainer___2jCTF > a.CarouselCard-module__titleWrapper___pPc-E > h5.CarouselCard-module__title___l2fed`
Advertising, Media and Marketing→ `div.container > div.container > div.sm:px-4 > h5.leading-tight`

These are opportunities to improve keyboard navigation in your application.

○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

●`[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

●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 are distinguishable without relying on color.

●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

●Touch targets have sufficient size and spacing.

●Document has a main landmark.

●Deprecated ARIA roles were not used

●ARIA IDs are unique

●All heading elements contain content.

●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 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

○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>`.

○Uses ARIA roles only on compatible elements

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

○Elements with visible text labels have matching accessible names.

○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.

○`<td>` elements in a large `<table>` have one or more table headers.

Best Practices

General

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / Warning	Source
SharedStorage	www.emarketer.com/cdn-cgi/challenge-platform/scripts/jsd/main.js
StorageType.persistent is deprecated. Please use standardized navigator.storage instead.	www.emarketer.com/cdn-cgi/challenge-platform/scripts/jsd/main.js
Fledge	www.emarketer.com/cdn-cgi/challenge-platform/scripts/jsd/main.js
AttributionReporting	snap.licdn.com/li.lms-analytics/insight.min.js

●Uses HTTPS

●Avoids third-party cookies

●Allows users to paste into input fields

●Avoids requesting the geolocation permission on page load

●Avoids requesting the notification permission on page load

●Displays images with correct aspect ratio

●Serves images with appropriate resolution

●Page has the HTML doctype

●Properly defines charset

●No browser errors logged to the console

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

●Ensure CSP is effective against XSS attacks

●Ensure proper origin isolation with COOP

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

○Use a strong HSTS policy

○Mitigate clickjacking with XFO or CSP

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.

Content Best Practices

Descriptive link text helps search engines understand your content. Learn how to make links more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Link destination	Link Text
www.emarketer.com/products/ai-search/?itm_source=homepage_hero/	Learn More
www.emarketer.com/coverage/	Learn More

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
li.glide__slide > div.mb-10 > a.flex > img.object-cover `li.glide__slide > div.mb-10 > a.flex > img.object-cover`
li.glide__slide > div.mb-10 > a.flex > img.object-cover `li.glide__slide > div.mb-10 > a.flex > img.object-cover`

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 are crawlable

●robots.txt is valid

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`