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
businessinsider.edge.permutive.app/3aba5292-ba75-422b-8715-bd21146f7836-web.js	900.0 s	192.0 KiB
connect.facebook.net/en_US/fbevents.js	1200.0 s	96.6 KiB
cdn.privacy-mgmt.com/Notice.8f529.js	3600.0 s	91.2 KiB
c.amazon-adsystem.com/aax2/apstag.js	3600.0 s	91.0 KiB
/cdnm50QDU6s2lq_RrjTCOPkh-uY/gpt_and_prebid/config.js	1100.0 s	69.1 KiB
cdn.confiant-integrations.net/UoN9YEYmGSZDADuK_Pua9WU_GTY/video/config.js	1100.0 s	60.2 KiB
sdk.mrf.io/statics/marfeel-sdk.js?id=3378	1800.0 s	59.2 KiB
verticalvideo.businessinsider.com/vs.js?cid=8CU2241SO	300.0 s	47.2 KiB
/signals/config/1988166924554892?v=2.9.303&r=stable&domai...	1200.0 s	44.7 KiB
cdn.sophi.io/assets/demeter/1/stable/1539492444.js	900.0 s	43.0 KiB
cdn.privacy-mgmt.com/unified/wrapperMessagingWithoutDetection.js	3600.0 s	42.0 KiB
ml314.com/tag.aspx?213	3600.0 s	38.7 KiB
scripts.atmtd.com/js/prebid_analytics/prebid_analytics.js	120.0 s	25.8 KiB
sdk.mrf.io/statics/47bd3e88b6bda15c34ce.js	3600.0 s	24.4 KiB
b-code.liadm.com/b-01h4.min.js	86400.0 s	46.1 KiB
pub.doubleverify.com/dvtag/23280644/DV673672/pub.js	900.0 s	19.3 KiB
www.businessinsider.com/public/assets/logos/placeholder.png	120.0 s	13.6 KiB
cdn.speedcurve.com/js/lux.js?id=38383524	3600.0 s	11.3 KiB
edge.atmtd.com/pub/mgnt/afihbs.js	0.0 ms	8.7 KiB
/cdn-cgi/challenge-platform/h/b/scripts/jsd/0b8fb825cb67/...	14400.0 s	12.5 KiB
cdn.privacy-mgmt.com/Notice.30929.css	3600.0 s	6.7 KiB
tags.crwdcntrl.net/lt/c/16576/sync.min.js	86400.0 s	13.1 KiB
/data-sales-tag/v1/parent/48a9bcaaa1/script?domain=www.bu...	0.0 ms	5.0 KiB
sdk.mrf.io/statics/compass-multimedia-sdk.js?version=2260	3600.0 s	4.3 KiB
sb.scorecardresearch.com/internal-cs/default/beacon-and.js	86400.0 s	7.8 KiB
config.aps.amazon-adsystem.com/configs/3201	3600.0 s	2.4 KiB
cdn.privacy-mgmt.com/polyfills.01516.js	3600.0 s	2.3 KiB
/03d0cf61-e746-4688-8848-d3d4fda9333a/launchpad-liveramp.js	0.0 ms	1.7 KiB
sli.businessinsider.com/baker?dtstmp=1776804015737	0.0 ms	544 B
/usersync/liveintent/?cb=//i.liadm.com/s/35004?bidder_id%...	0.0 ms	200 B
match.adsrvr.org/track/cmf/generic?ttd_pid=liveintent&ttd_tpi=1&gdpr=0	0.0 ms	149 B
/hadron.js?url=https%3A%2F%2Fwww.businessinsider.com%2F&r...	432000.0 s	187 B
/tr/?id=1988166924554892&ev=PageView&dl=https%3A%2F%2Fwww...	0.0 ms	19 B

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:18.399 source:map[column:166868 line:1 type:source-location url:https://www.businessinsider.com/scripts/main.8c8b98ae40820e3e27f0.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:1.375 source:map[column:158101 line:0 type:source-location url:https://www.businessinsider.com/scripts/main.8c8b98ae40820e3e27f0.js urlProvider:network]] map[reflowTime:18.399 source:map[column:166882 line:0 type:source-location url:https://www.businessinsider.com/scripts/main.8c8b98ae40820e3e27f0.js urlProvider:network]] map[reflowTime:2.716 source:map[type:text value:[unattributed]]] map[reflowTime:0.161 source:map[column:320 line:0 type:source-location url:https://www.businessinsider.com/chunks/scripts/components~marquee-client.633201902de1ad65d5dd.js urlProvider:network]] map[reflowTime:0.116 source:map[column:12368 line:0 type:source-location url:https://cdn.privacy-mgmt.com/unified/wrapperMessagingWithoutDetection.js urlProvider:network]] map[reflowTime:0.653 source:map[column:40493 line:0 type:source-location url:https://cdn.privacy-mgmt.com/unified/wrapperMessagingWithoutDetection.js urlProvider:network]] map[reflowTime:0.287 source:map[column:38273 line:1 type:source-location url:https://sdk.mrf.io/statics/marfeel-sdk.js?id=3378 urlProvider:network]]]

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
picloram `article.tout > a.tout-image > div.aspect-ratio > img`	i.insider.com/69e69d97a98bc8fdc096ca8b?width=1000&format=jpeg&auto=webp	31.7 KiB	15.2 KiB

Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-0-IMG

nodeLabel: picloram

path: 1,HTML,1,BODY,3,SECTION,0,SECTION,1,SECTION,1,SECTION,0,ARTICLE,0,A,0,DIV,0,IMG

selector: article.tout > a.tout-image > div.aspect-ratio > img

snippet: <img src="https://i.insider.com/69e69d97a98bc8fdc096ca8b?width=1000&format=jpeg&auto…" srcset="https://i.insider.com/69e69d97a98bc8fdc096ca8b?width=400&format=jpeg&auto=…" sizes="(min-width: 1280px) 900px" alt="picloram" decoding="sync">

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

value: No additional origins are good candidates for preconnecting

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.

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: 752 ms

URL	Time Spent
insider.com/	752 ms
www.businessinsider.com/	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.

Estimated savings: 150 ms 28.1 KiB

URL	Transfer Size	Est Savings
www.businessinsider.com/styles/v1-landing-page.799867cae5d8b3a48eed.css	22.1 KiB	17.8 KiB
[data-component-type=post-body-content]>h1,[data-componen...	11.3 KiB	10.3 KiB

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: 150 ms 774.7 KiB

URL	Transfer Size	Est Savings
/pagead/managed/js/gpt/m202604160201/pubads_impl.js	187.7 KiB	127.5 KiB
cdn.confiant-integrations.net/gptprebidnative/202603241056/wrap.js	141.5 KiB	85.2 KiB
micro.rubiconproject.com/prebid/dynamic/10306.js	180.3 KiB	74.1 KiB
www.googletagmanager.com/gtm.js?id=GTM-MP6F46L	162.3 KiB	70.9 KiB
cdn.confiant-integrations.net/video/202603241056/wrap.js	125.0 KiB	70.6 KiB
www.googletagmanager.com/gtag/js?id=G-E21CV80ZCZ&cx=c&gtm=4e64h1	148.2 KiB	61.3 KiB
businessinsider.edge.permutive.app/3aba5292-ba75-422b-8715-bd21146f7836-web.js	191.5 KiB	43.0 KiB
c.amazon-adsystem.com/aax2/apstag.js	90.6 KiB	37.8 KiB
verticalvideo.businessinsider.com/vs.js?cid=8CU2241SO	47.0 KiB	37.4 KiB
www.businessinsider.com/scripts/main.8c8b98ae40820e3e27f0.js	79.5 KiB	36.6 KiB
connect.facebook.net/en_US/fbevents.js	96.5 KiB	33.6 KiB
ml314.com/tag.aspx?213	38.2 KiB	25.6 KiB
sdk.mrf.io/statics/marfeel-sdk.js?id=3378	58.8 KiB	25.2 KiB
www.businessinsider.com/scripts/vendors.af1dfc21612fcc860b25.js	44.0 KiB	24.0 KiB
sdk.mrf.io/statics/47bd3e88b6bda15c34ce.js	23.9 KiB	22.0 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.businessinsider.com/	2.2 s	80 ms	28 ms
Unattributable	952 ms	191 ms	0.0 ms
www.businessinsider.com/scripts/main.8c8b98ae40820e3e27f0.js	786 ms	488 ms	41 ms
/pagead/managed/js/gpt/m202604160201/pubads_impl.js	688 ms	625 ms	50 ms
c.amazon-adsystem.com/aax2/apstag.js	436 ms	377 ms	49 ms
www.googletagmanager.com/gtm.js?id=GTM-MP6F46L	415 ms	302 ms	73 ms
micro.rubiconproject.com/prebid/dynamic/10306.js	353 ms	258 ms	49 ms
cdn.confiant-integrations.net/video/202603241056/wrap.js	351 ms	323 ms	27 ms
cdn.confiant-integrations.net/gptprebidnative/202603241056/wrap.js	343 ms	312 ms	29 ms
businessinsider.edge.permutive.app/3aba5292-ba75-422b-8715-bd21146f7836-web.js	309 ms	204 ms	92 ms
www.googletagmanager.com/gtag/js?id=G-E21CV80ZCZ&cx=c&gtm=4e64h1	299 ms	266 ms	32 ms
my.businessinsider.com/cdn-cgi/challenge-platform/scripts/jsd/main.js	264 ms	254 ms	2.1 ms
sdk.mrf.io/statics/marfeel-sdk.js?id=3378	256 ms	249 ms	0.9 ms
/signals/config/1988166924554892?v=2.9.303&r=stable&domai...	201 ms	187 ms	13 ms
cdn.privacy-mgmt.com/unified/wrapperMessagingWithoutDetection.js	187 ms	134 ms	15 ms
cdn.sophi.io/assets/demeter/1/stable/1539492444.js	141 ms	128 ms	13 ms
connect.facebook.net/en_US/fbevents.js	126 ms	96 ms	29 ms
b-code.liadm.com/b-01h4.min.js	118 ms	95 ms	11 ms
my.businessinsider.com/cross-domain/	100 ms	92 ms	2.5 ms
fundingchoicesmessages.google.com/i/4442842?ers=3	93 ms	89 ms	2.1 ms
securepubads.g.doubleclick.net/tag/js/gpt.js?network-code=4442842	72 ms	63 ms	8.4 ms
markets.businessinsider.com/cross-domain	63 ms	16 ms	5.9 ms
pub.doubleverify.com/dvtag/23280644/DV673672/pub.js	56 ms	48 ms	5.4 ms
/cdnm50QDU6s2lq_RrjTCOPkh-uY/gpt_and_prebid/config.js	50 ms	21 ms	28 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	5.3 s
Other	1.8 s
Script Parsing & Compilation	724 ms
Rendering	707 ms
Style & Layout	568 ms
Garbage Collection	179 ms
Parse HTML & CSS	119 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 12.7 KiB

URL	Transfer Size	Est Savings
launchpad.privacymanager.io/latest/launchpad.bundle.js	40.2 KiB	12.7 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

●Avoids enormous network payloads Total size was 2,565 KiB

●User Timing marks and measures 61 user timings

●Avoid long main-thread tasks 20 long tasks found

●Avoid non-composited animations 2 animated elements found

●Image elements have explicit `width` and `height`

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 170 ms

●Server Backend Latencies 160 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 550 ms

●Avoid large layout shifts 1 layout shift found

○INP breakdown

100

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.

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
Your Briefing `header.masthead > section.bottom-section > div.user-greeting > span.catch-me-up-quickly`

○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

●Buttons have an accessible name

●Image elements have `[alt]` attributes

●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.

●`button`, `link`, and `menuitem` elements have accessible names

●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

●Background and foreground colors have a sufficient contrast ratio

●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

●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

●All heading elements contain content.

●Identical links have the same purpose.

○`[accesskey]` values are unique

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.

○`[role]`s are contained by their required parent element

○Elements with the `role=text` attribute do not have focusable descendents.

○ARIA toggle fields have accessible names

○ARIA `tooltip` elements have accessible names

○ARIA `treeitem` elements have accessible names

○The page contains a heading, skip link, or landmark region

○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.

○Definition list items are wrapped in `<dl>` elements

○ARIA IDs are unique

○No form fields have multiple labels

○`<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.

○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	my.businessinsider.com/cdn-cgi/challenge-platform/scripts/jsd/main.js
StorageType.persistent is deprecated. Please use standardized navigator.storage instead.	my.businessinsider.com/cdn-cgi/challenge-platform/scripts/jsd/main.js
Fledge	my.businessinsider.com/cdn-cgi/challenge-platform/scripts/jsd/main.js
AttributionReporting	connect.facebook.net/en_US/fbevents.js line 279, col 769

●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

●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

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.businessinsider.com/video	More
www.businessinsider.com/tech	More
www.businessinsider.com/markets	More
www.businessinsider.com/discourse	More
www.businessinsider.com/economy	More
www.businessinsider.com/careers	More
www.businessinsider.com/guides	More

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

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`