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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.

93

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
/universal-web-client/master/latest/core/bundles/section.js3600.0 s81.9 KiB
cdn.cookielaw.org/scripttemplates/202601.2.0/otBannerSdk.js86400.0 s128.4 KiB
/universal-web-client/master/latest/gallium/themes/assets...3600.0 s20.8 KiB
atoms.desmoinesregister.com/atoms-library/prod/dist/gannett-atoms-library.js900.0 s16.1 KiB
/universal-web-client/master/latest/gallium/themes/assets...3600.0 s17.7 KiB
/universal-web-client/master/latest/gallium/themes/assets...3600.0 s17.6 KiB
/universal-web-client/master/latest/core/scripts/partner.js3600.0 s17.5 KiB
/universal-web-client/master/latest/gallium/themes/assets...3600.0 s16.4 KiB
cdn.cookielaw.org/scripttemplates/202601.2.0/otTCF.js86400.0 s17.7 KiB
/universal-web-client/master/latest/core/scripts/utils.js3600.0 s5.8 KiB
cdn.cookielaw.org/scripttemplates/otSDKStub.js86400.0 s9.1 KiB
/universal-web-client/master/latest/vendor/components/sha...3600.0 s4.3 KiB
/universal-web-client/master/latest/core/scripts/gallium.js3600.0 s4.2 KiB
/universal-web-client/master/latest/vendor/components/web...3600.0 s3.7 KiB
/universal-web-client/master/latest/vendor/components/sha...3600.0 s1.9 KiB
/universal-web-client/master/latest/vendor/components/web...3600.0 s1.7 KiB
/universal-web-client/master/latest/vendor/components/web...3600.0 s1.1 KiB
/universal-web-client/master/latest/gallium/themes/glide....3600.0 s525 B
/v2/polyfill.min.js?features=default,fetch,Array.prototyp...604800.0 s354 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:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:37.161 source:map[column:23207 line:7 type:source-location url:https://cdn.cookielaw.org/scripttemplates/202601.2.0/otBannerSdk.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:36.903 source:map[column:300003 line:6 type:source-location url:https://cdn.cookielaw.org/scripttemplates/202601.2.0/otBannerSdk.js urlProvider:network]] map[reflowTime:0.258 source:map[column:300347 line:6 type:source-location url:https://cdn.cookielaw.org/scripttemplates/202601.2.0/otBannerSdk.js 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.

URLResource SizeEst Savings
a.container-link > div.container > img a.container-link > div.container > img
/authoring/authoring-images/2025/11/29/PDEM/87526917007-u...1.5 MiB1.5 MiB
Window washer falls three stories from downtown Des Moines building div.section-helper-flex > div.nonflexDiv > picture.p1-image > img.p1-image
/authoring/authoring-images/2026/04/22/PDEM/89736913007-s...72.4 KiB69.2 KiB
Make College Great Again? Why UI's new center is causing a stir div.section-helper-flex > div.nonflexDiv > picture.p1-image > img.p1-image
/authoring/authoring-images/2026/04/22/PDEM/89734206007-c...50.8 KiB47.6 KiB
Police searching for missing Ankeny teen div.section-helper-flex > div.nonflexDiv > picture.p1-image > img.p1-image
/authoring/authoring-images/2026/04/22/PDEM/89733819007-6...41.7 KiB38.5 KiB
a.section-helper-flex > div.section-helper-column > picture.p2-photo > img.p2-photo a.section-helper-flex > div.section-helper-column > picture.p2-photo > img.p2-photo
/authoring/authoring-images/2025/11/13/PDEM/87257756007-n...52.6 KiB37.9 KiB
Our favorite photos from the Grand Blue Mile in Des Moines a.section-helper-flex > div.section-helper-column > picture.p2-photo > img.p2-photo
/authoring/authoring-images/2026/04/22/PDEM/89725431007-g...43.8 KiB31.6 KiB
Hear Sen. Jack Whitver's emotional retirement speech a.section-helper-flex > div.section-helper-column > picture.p2-photo > img.p2-photo
/authoring/authoring-images/2025/05/09/PDEM/83543533007-e...34.9 KiB25.2 KiB
a.container-link > div.container > img a.container-link > div.container > img
/authoring/authoring-images/2026/04/21/PDEM/89718974007-l...18.1 KiB7.4 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-4-IMG
nodeLabel: a.section-helper-flex > div.section-helper-column > picture.p2-photo > img.p2-photo
path: 1,HTML,1,BODY,4,SECTION,0,DIV,0,DIV,1,DIV,0,DIV,1,DIV,0,A,0,DIV,0,PICTURE,3,IMG
selector: a.section-helper-flex > div.section-helper-column > picture.p2-photo > img.p2-photo
snippet: <img src="https://www.gannett-cdn.com/authoring/authoring-images/2025/11/13/PDEM/872…" alt="" class="p2-photo">

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
value: No additional origins are good candidates for preconnecting

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
/v2/polyfill.min.js?features=default,fetch,Array.prototyp...354 B206 ms
/universal-web-client/master/latest/vendor/components/web...1.1 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: 424 ms
URLTime Spent
desmoinesregister.com/221 ms
www.desmoinesregister.com/202 ms
eu.desmoinesregister.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

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: 40 ms 283.8 KiB
URLTransfer SizeEst Savings
98.6 KiB65.1 KiB
36.2 KiB23.9 KiB
29.9 KiB20.6 KiB
24.0 KiB14.0 KiB
25.1 KiB13.8 KiB
26.2 KiB12.5 KiB
20.0 KiB12.3 KiB
19.5 KiB11.9 KiB
18.6 KiB10.3 KiB
/universal-web-client/master/latest/core/scripts/partner.js17.2 KiB7.4 KiB
13.2 KiB7.2 KiB
12.6 KiB7.1 KiB
10.0 KiB6.8 KiB
6.6 KiB6.1 KiB
10.9 KiB6.0 KiB
7.0 KiB5.6 KiB
9.0 KiB5.3 KiB
9.5 KiB5.0 KiB
5.5 KiB4.8 KiB
9.4 KiB4.7 KiB
9.9 KiB4.5 KiB
7.8 KiB4.3 KiB
5.5 KiB4.1 KiB
5.0 KiB3.1 KiB
6.1 KiB3.1 KiB
4.9 KiB2.7 KiB
3.6 KiB2.6 KiB
/universal-web-client/master/latest/core/scripts/utils.js5.2 KiB2.5 KiB
3.9 KiB2.3 KiB
6.6 KiB2.2 KiB
3.0 KiB2.0 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: 20 ms 143.8 KiB
URLTransfer SizeEst Savings
cdn.cookielaw.org/scripttemplates/202601.2.0/otBannerSdk.js128.2 KiB73.9 KiB
98.6 KiB39.2 KiB
/universal-web-client/master/latest/core/bundles/section.js81.7 KiB30.7 KiB

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer Size
/authoring/authoring-images/2025/11/29/PDEM/87526917007-u...1.5 MiB
cdn.cookielaw.org/scripttemplates/202601.2.0/otBannerSdk.js128.4 KiB
cdn.cookielaw.org/vendorlist/iab2V2Data.json86.8 KiB
/universal-web-client/master/latest/core/bundles/section.js81.9 KiB
/authoring/authoring-images/2026/04/22/PDEM/89736913007-s...73.0 KiB
/authoring/authoring-images/2025/11/13/PDEM/87257756007-n...53.2 KiB
/authoring/authoring-images/2026/04/22/PDEM/89734206007-c...51.0 KiB
/authoring/authoring-images/2026/04/22/PDEM/89725431007-g...44.1 KiB
/authoring/authoring-images/2026/04/22/PDEM/89733819007-6...41.9 KiB
/consent/45e29b99-6e34-4a9d-ab94-5c6d56bfac9e/019c9ea5-4e...40.3 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
a.section-helper-flex > div.section-helper-column > picture.p2-photo > img.p2-photo a.section-helper-flex > div.section-helper-column > picture.p2-photo > img.p2-photo
/authoring/authoring-images/2025/11/13/PDEM/87257756007-n...
The Des Moines Register div#navRibbon > div#toggleSticky > a#logoContainer > img#logo
/gannett-web/properties/desmoinesregister/logos-and-brand...
The Des Moines Register div.expand-wrap-top > div#logoWrap > a#hubLogo > img#sidebarLogo
/gannett-web/properties/desmoinesregister/logos-and-brand...
Window washer falls three stories from downtown Des Moines building div.section-helper-flex > div.nonflexDiv > picture.p1-image > img.p1-image
/authoring/authoring-images/2026/04/22/PDEM/89736913007-s...
Police release little info in aftermath of Iowa City shooting. Why? div.section-helper-flex > div.nonflexDiv > picture.p1-image > img.p1-image
/authoring/authoring-images/2026/04/19/PIOC/89690040007-2...
Iowa landlords say Senate property tax plan could drive up rent costs div.section-helper-flex > div.nonflexDiv > picture.p1-image > img.p1-image
/authoring/authoring-images/2026/04/21/PDEM/89719075007-p...
Solar panels will soon help power Polk County Jail div.section-helper-flex > div.nonflexDiv > picture.p1-image > img.p1-image
/presto/2020/09/23/PDEM/6aeb5a9d-fd7d-4216-8c3d-cb451bdf8...
How a comic book can teach you about cocktails div.section-helper-flex > div.nonflexDiv > picture.p1-image > img.p1-image
/authoring/authoring-images/2026/04/21/PDEM/89718900007-i...
A Driftless road‑trip payoff: Iowa supper club earns top praise div.section-helper-flex > div.nonflexDiv > picture.p1-image > img.p1-image
/authoring/authoring-images/2026/04/21/PDEM/89718940007-r...
Watch:: Window washer rescued from scaffolding on downtown building div.section-helper-flex > div.nonflexDiv > picture.p1-image > img.p1-image
/authoring/authoring-images/2026/04/22/PDEM/89738437007-s...
How Des Moines Public Schools' budget will affect your property taxes div.section-helper-flex > div.nonflexDiv > picture.p1-image > img.p1-image
/authoring/authoring-images/2026/03/24/PDEM/89309061007-d...
Mile posts: Items on Annie Frisbie, Shelby Houlihan, Mallory Lindaman, Riley Wi… div.section-helper-flex > div.nonflexDiv > picture.p1-image > img.p1-image
/authoring/authoring-images/2025/11/05/PDEM/87097506007-a...
Hear Sen. Jack Whitver's emotional retirement speech div.section-helper-flex > div.nonflexDiv > picture.p1-image > img.p1-image
/authoring/authoring-images/2025/05/09/PDEM/83543533007-e...
Police searching for missing Ankeny teen div.section-helper-flex > div.nonflexDiv > picture.p1-image > img.p1-image
/authoring/authoring-images/2026/04/22/PDEM/89733819007-6...
Motorcyclist dead after West Des Moines crash with school bus div.section-helper-flex > div.nonflexDiv > picture.p1-image > img.p1-image
/-mm-/cf590beeec04e793cbf8e7ec6bbd1a1289afc9ba/c=0-15-144...
Suspect in Des Moines homicide arrested in Chicago div.section-helper-flex > div.nonflexDiv > picture.p1-image > img.p1-image
/-mm-/37c443ea52db67e606ab69a0c8c9cbaa5339feed/c=0-6-720-...
ISU assistant coach Jodi Steyer announces retirement div.section-helper-flex > div.nonflexDiv > picture.p1-image > img.p1-image
/authoring/authoring-images/2026/02/26/NATR/88886339007-0...
Iowa gymnastics coach to plead guilty in Mississippi child porn case div.section-helper-flex > div.nonflexDiv > picture.p1-image > img.p1-image
/authoring/authoring-images/2025/08/19/PDEM/85724991007-0...
Soy supports a sustainable future, from farm to fork div.section-helper-flex > div.nonflexDiv > picture.p1-image > img.p1-image
/authoring/authoring-images/2025/09/26/PDEM/86367831007-h...
Make College Great Again? Why UI's new center is causing a stir div.section-helper-flex > div.nonflexDiv > picture.p1-image > img.p1-image
/authoring/authoring-images/2026/04/22/PDEM/89734206007-c...

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

●Time to Interactive 1.5 s
●Layout shift culprits
●Optimize DOM size
●Font display
●LCP breakdown
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●Reduce unused CSS
●JavaScript execution time 0.5 s
●Minimizes main-thread work 1.3 s
●Avoid long main-thread tasks 2 long tasks found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 10 ms
●Server Backend Latencies 30 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 4 layout shifts found
○INP breakdown
○User Timing marks and measures
○Avoid non-composited animations
85

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.

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
Share your feedback div.content-well > div#post-content > cta-generic-text.feedback > span.emphasis

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
Most Recent Videos div#container > a.has-padding > h5.label-news

These are opportunities to improve keyboard navigation in your application.

Names and labels

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
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img

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#footer > div#footerContainer > div#footerButtons > a#Facebook div#footer > div#footerContainer > div#footerButtons > a#Facebook
div#footer > div#footerContainer > div#footerButtons > a#Twitter div#footer > div#footerContainer > div#footerButtons > a#Twitter
div#footer > div#footerContainer > div#footerButtons > a#Pinterest div#footer > div#footerContainer > div#footerButtons > a#Pinterest

Including a skip link can help users skip to the main content to save time. Learn more about skip links.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Skip to main content body.partner-placements-inactive > a#skipToMain

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.

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
For more information about how we use your data visit our Privacy Policy. div#onetrust-group-container > div#onetrust-policy > div#onetrust-policy-text > a.ot-cookie-policy-link
○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
●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.
●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
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○`[aria-hidden="true"]` elements do not contain focusable descendents
○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
○`<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.
○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>`.
○All heading elements contain content.
○Uses ARIA roles only on compatible elements
○Image elements do not have `[alt]` attributes that are redundant text.
○Identical links have the same purpose.
○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.

SourceDescription
eu.desmoinesregister.com/
Access to fetch at 'https://user.desmoinesregister.com/PDEM-GUP/user/' from origin 'https://eu.desmoinesregister.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
Error with Permissions-Policy header: Parse of permissions policy failed because of errors reported by structured header parser.
user.desmoinesregister.com/PDEM-GUP/user/
Failed to load resource: net::ERR_FAILED
●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 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
54

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.

Crawling and Indexing

Search engines are unable to include your pages in search results if they don't have permission to crawl them. Learn more about crawler directives.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Blocking Directive Source
x-robots-tag: noindex, nofollow,noarchive,nocache

To appear in search results, crawlers need access to your app.

Content Best Practices

Meta descriptions may be included in search results to concisely summarize page content. Learn more about the meta description.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img
a.container-link > div.container > img a.container-link > div.container > img

Format your HTML in a way that enables crawlers to better understand your app’s content.

○Structured data is valid
●Document has a `<title>` element
●Page has successful HTTP status code
●Links have descriptive text
●Links are crawlable
●robots.txt is valid
●Document has a valid `hreflang`
●Document has a valid `rel=canonical`

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