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Lighthouse Desktop

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

Audit breakdown by category with detailed findings.

97

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
businessinsider.edge.permutive.app/3aba5292-ba75-422b-8715-bd21146f7836-web.js900.0 s192.0 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s96.6 KiB
cdn.privacy-mgmt.com/Notice.8f529.js3600.0 s91.2 KiB
c.amazon-adsystem.com/aax2/apstag.js3600.0 s91.0 KiB
/cdnm50QDU6s2lq_RrjTCOPkh-uY/gpt_and_prebid/config.js1100.0 s69.1 KiB
cdn.confiant-integrations.net/UoN9YEYmGSZDADuK_Pua9WU_GTY/video/config.js1100.0 s60.2 KiB
sdk.mrf.io/statics/marfeel-sdk.js?id=33781800.0 s59.2 KiB
verticalvideo.businessinsider.com/vs.js?cid=8CU2241SO300.0 s47.2 KiB
/signals/config/1988166924554892?v=2.9.303&r=stable&domai...1200.0 s44.7 KiB
cdn.sophi.io/assets/demeter/1/stable/1539492444.js900.0 s43.0 KiB
cdn.privacy-mgmt.com/unified/wrapperMessagingWithoutDetection.js3600.0 s42.0 KiB
ml314.com/tag.aspx?2133600.0 s38.7 KiB
scripts.atmtd.com/js/prebid_analytics/prebid_analytics.js120.0 s25.8 KiB
sdk.mrf.io/statics/47bd3e88b6bda15c34ce.js3600.0 s24.4 KiB
b-code.liadm.com/b-01h4.min.js86400.0 s46.1 KiB
pub.doubleverify.com/dvtag/23280644/DV673672/pub.js900.0 s19.3 KiB
www.businessinsider.com/public/assets/logos/placeholder.png120.0 s13.6 KiB
cdn.speedcurve.com/js/lux.js?id=383835243600.0 s11.3 KiB
edge.atmtd.com/pub/mgnt/afihbs.js0.0 ms8.6 KiB
/cdn-cgi/challenge-platform/h/b/scripts/jsd/0b8fb825cb67/...14400.0 s12.4 KiB
cdn.privacy-mgmt.com/Notice.30929.css3600.0 s6.7 KiB
tags.crwdcntrl.net/lt/c/16576/sync.min.js86400.0 s13.1 KiB
/data-sales-tag/v1/parent/48a9bcaaa1/script?domain=www.bu...0.0 ms4.9 KiB
sdk.mrf.io/statics/compass-multimedia-sdk.js?version=22603600.0 s4.3 KiB
sb.scorecardresearch.com/internal-cs/default/beacon.js86400.0 s6.7 KiB
config.aps.amazon-adsystem.com/configs/32013600.0 s2.4 KiB
cdn.privacy-mgmt.com/polyfills.01516.js3600.0 s2.3 KiB
/03d0cf61-e746-4688-8848-d3d4fda9333a/launchpad-liveramp.js0.0 ms1.7 KiB
sli.businessinsider.com/baker?dtstmp=17768040421560.0 ms545 B
/usersync/liveintent/?cb=//i.liadm.com/s/35004?bidder_id%...0.0 ms200 B
match.adsrvr.org/track/cmf/generic?ttd_pid=liveintent&ttd_tpi=1&gdpr=00.0 ms149 B
/hadron.js?url=https%3A%2F%2Fwww.businessinsider.com%2F&r...432000.0 s186 B
/tr/?id=1988166924554892&ev=PageView&dl=https%3A%2F%2Fwww...0.0 ms16 B

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: Apple CEO Tim Cook laughing
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/69e7444b367066d7c296efb3?width=1000&amp;format=jpeg&amp;auto…" srcset="https://i.insider.com/69e7444b367066d7c296efb3?width=400&amp;format=jpeg&amp;auto=…" sizes="(min-width: 1280px) 900px" alt="Apple CEO Tim Cook laughing" 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.

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
a man stands in a glass box over New York City article.tout > a.tout-image > div.lazy-holder > img.lazy-image
i.insider.com/69e6678f3fecbb42897a1bc1?width=500&format=jpeg&auto=webp32.1 KiB11.7 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: 238 ms
URLTime Spent
insider.com/238 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

Diagnostics

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

CategoryTime Spent
Script Evaluation1.3 s
Other636 ms
Rendering329 ms
Style & Layout197 ms
Script Parsing & Compilation188 ms
Garbage Collection38 ms
Parse HTML & CSS34 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
URLTransfer SizeEst Savings
launchpad.privacymanager.io/latest/launchpad.bundle.js40.2 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 16.2 KiB

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

Max Potential First Input Delay 100 ms
Layout shift culprits
Optimize DOM size
Font display
Forced reflow
LCP breakdown
Modern HTTP
Render blocking requests
Optimize viewport for mobile
Minify CSS
Avoids enormous network payloads Total size was 2,556 KiB
User Timing marks and measures 61 user timings
JavaScript execution time 1.1 s
Avoid long main-thread tasks 8 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 180 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 0 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.
81

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
SharedStorage
StorageType.persistent is deprecated. Please use standardized navigator.storage instead.
Fledge
AttributionReporting
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
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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