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.

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.

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: AI chatbots give misleading health advice nearly half the time

path: 1,HTML,1,BODY,10,DIV,0,DIV,0,DIV,0,DIV,0,FORM,6,MAIN,0,DIV,0,SECTION,0,DIV,0,A,0,IMG

selector: section#widget838a2d8e-1032-4df8-80f1-c2c05b6fc984 > div#hp-feature-838a2d8e-1032-4df8-80f1-c2c05b6fc984 > a > img

snippet: <img src="https://www.news-medical.net/image-handler/ts/20260421070946/ri/750/src/im…" srcset="https://www.news-medical.net/image-handler/ts/20260421070946/ri/2000/src/i…" sizes="(min-width: 1200px) 693px, (min-width: 1090px) 687px, (min-width: 992px) c…" alt="AI chatbots give misleading health advice nearly half the time" width="2000" height="779">

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

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-ukwest.onetrust.com/scripttemplates/202601.1.0/otBannerSdk.js	86400.0 s	127.0 KiB
cdn-ukwest.onetrust.com/scripttemplates/otSDKStub.js	86400.0 s	9.1 KiB
rules.quantcount.com/rules-p-44YZJYpg6LiCA.js	3600.0 s	1.2 KiB
/insync?vxii_pdid=&vxii_pid=12&vxii_pid1=10015&vxii_rcid=...	0.0 ms	139 B
/p.css?s=1&k=iio3fgy&ht=tk&f=2005.2009.2010.2001.2002.145...	604800.0 s	172 B

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: 773 ms

URL	Time Spent
news-medical.net/	773 ms
www.news-medical.net/	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: 900 ms 99.9 KiB

URL	Transfer Size	Est Savings
/bundles/css/desktop/base?v=aZNCktlVAvRopw_omt11j5bc3UCHF...	107.0 KiB	99.9 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: 1.1 s 510.2 KiB

URL	Transfer Size	Est Savings
/bundles/js/desktop/base?v=davmpbHaim9x7QBU9ZoNMcVZxW-vTj...	282.5 KiB	222.7 KiB
/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31...	187.4 KiB	141.8 KiB
cdn-ukwest.onetrust.com/scripttemplates/202601.1.0/otBannerSdk.js	126.9 KiB	81.5 KiB
www.googletagmanager.com/gtag/js?id=G-ZD4LNWPK1L	164.3 KiB	64.2 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
/bundles/js/desktop/base?v=davmpbHaim9x7QBU9ZoNMcVZxW-vTj...	456 ms	245 ms	123 ms
www.news-medical.net/	426 ms	44 ms	14 ms
Unattributable	396 ms	70 ms	0.0 ms
www.googletagmanager.com/gtag/js?id=G-ZD4LNWPK1L	345 ms	277 ms	65 ms
/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31...	244 ms	161 ms	78 ms
cdn-ukwest.onetrust.com/scripttemplates/202601.1.0/otBannerSdk.js	153 ms	78 ms	64 ms
securepubads.g.doubleclick.net/tag/js/gpt.js	90 ms	76 ms	14 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	1.1 s
Other	422 ms
Script Parsing & Compilation	370 ms
Style & Layout	287 ms
Parse HTML & CSS	81 ms
Rendering	63 ms
Garbage Collection	8.9 ms

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
Azthena chat logo `form#aspnetForm > div.chat-launcher-icon > button > img`	www.news-medical.net/images/ai-chat-icon.svg
News-Medical `div.footer-matter > div.footer-container > div.center-block > img`	www.news-medical.net/themes/Standard/images/nm-logo-4-@2x.png
AZoNetwork `div.footer-matter-right-contents > p > a > img`	www.azonetwork.com/images/azonetwork_logo_footer_80.png
Extracellular vesicles from menstrual blood cells show potential to stimulate c… `li > div.col-xs-4 > a > img.lazy-load-image`	data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
Popular sweeteners may impact metabolism across generations `li > div.col-xs-4 > a > img.lazy-load-image`	data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
Metformin mimics exercise-related metabolic effects in prostate cancer patients `li > div.col-xs-4 > a > img.lazy-load-image`	data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
Competition between brain circuits is key to intelligent behavior `li > div.col-xs-4 > a > img.lazy-load-image`	data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
Study finds nutritional risks in users of GLP-1 drugs `li > div.col-xs-4 > a > img.lazy-load-image`	data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
Accelerating Drug Discovery and Development with Effective Data Housekeeping `article.article-size-3 > div.article-thumb > a > img.lazy-load-image`	data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
Holistic Approach to Empowering Women's Reproductive Health `article.article-size-3 > div.article-thumb > a > img.lazy-load-image`	data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
Exploring the Connection Between Gut Health and Meditation `article.article-size-3 > div.article-thumb > a > img.lazy-load-image`	data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
A new method to measure intracellular water in biological systems `article.article-size-3 > a > div.article-thumb > img.lazy-load-image`	data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
Obesity, GLP-1s, and metabolic care `article.article-size-3 > a > div.article-thumb > img.lazy-load-image`	data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
Automation in cell-based workflows `article.article-size-3 > a > div.article-thumb > img.lazy-load-image`	data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
Eating oranges daily may shift lipid patterns in fatty liver disease `li > div.col-xs-4 > a > img.lazy-load-image`	data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
Brief intense workouts offer significant health benefits `li > div.col-xs-4 > a > img.lazy-load-image`	data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
New federal Medicaid rules require one month of work. Some states demand more. `li > div.col-xs-4 > a > img.lazy-load-image`	data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
Study reveals what people ask AI chatbots about health most often `li > div.col-xs-4 > a > img.lazy-load-image`	data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
Study finds long COVID leaves a distinct immune signature in the blood `li > div.col-xs-4 > a > img.lazy-load-image`	data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
Injectable immunotherapy shrinks precancerous oral lesions in clinical trial `li > div.col-xs-4 > a > img.lazy-load-image`	data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
Chronic wildfire smoke exposure may raise long-term cancer risks `li > div.col-xs-4 > a > img.lazy-load-image`	data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
Early myocarditis onset after immunotherapy linked to higher fatality risk `li > div.col-xs-4 > a > img.lazy-load-image`	data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
Millions of Americans with hepatitis C still remain untreated, analysis reveals `li > div.col-xs-4 > a > img.lazy-load-image`	data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
Common gene in axolotls, mice and zebrafish may unlock human limb regrowth `li > div.col-xs-4 > a > img.lazy-load-image`	data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7

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

●Forced reflow

●Improve image delivery

●LCP breakdown

●Modern HTTP

●Render blocking requests

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●Avoids enormous network payloads Total size was 1,342 KiB

●User Timing marks and measures 5 user timings

●Avoid long main-thread tasks 10 long tasks found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 10 ms

●Server Backend Latencies 70 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 40 ms

●Avoid large layout shifts 1 layout shift found

○INP breakdown

○Avoid non-composited animations

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.

ARIA

Assistive technologies, like screen readers, can't interpret ARIA attributes with invalid names. Learn more about valid ARIA attributes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Medical Home Functional Food News Health A-Z White Papers Thought Leaders Insig… `footer.footer > div.row > div.col-xs-12 > nav.row`
Life Sciences Home News Lab Instruments & Equipment Life Sciences A-Z White Pap… `footer.footer > div.row > div.col-xs-12 > nav.row`
About Meet the Team Search Newsletters Sitemap Advertise Contact Terms & Condit… `footer.footer > div.row > div.col-xs-12 > nav.row`
AZoM AZoNano AZoCleantech AZoOptics AZoRobotics AZoSensors AZoMining AZoQuantum… `footer.footer > div.row > div.col-xs-12 > nav.row`

Focusable descendents within an `[aria-hidden="true"]` element prevent those interactive elements from being available to users of assistive technologies like screen readers. Learn how `aria-hidden` affects focusable elements.

Why this matters

Informational: a Permissions-Policy directive showing feature -> allowed origins.

Source: MDN Permissions-Policy

Failing Elements
Medical Home Life Sciences Home About Functional Food News Health A-Z Drugs Med… `header > nav.main-menu > div.nav-right > ul.menu`

These are opportunities to improve the usage of ARIA in your application which 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
Health Articles See all » `main#main > div#widgetzone_HomeTopV3b > section#widget79fbb2c6-8afe-4aff-97ae-eca75a678c24 > h2.widget-top`
See all » `section#widget79fbb2c6-8afe-4aff-97ae-eca75a678c24 > h2.widget-top > span.widget-see-all > a`
White Papers See all » `main#main > div#widgetzone_HomeTopV3b > section#widgetb5c45997-bafd-4294-ae85-3eb704134201 > h2.widget-top`
See all » `section#widgetb5c45997-bafd-4294-ae85-3eb704134201 > h2.widget-top > span.widget-see-all > a`
Life Sciences Articles See all » `main#main > div#widgetzone_HomeTopV3b > section#widget86606326-f014-4947-82c4-943577ee08b2 > h2.widget-top`
See all » `section#widget86606326-f014-4947-82c4-943577ee08b2 > h2.widget-top > span.widget-see-all > a`
Devices / Equipment See all » `main#main > div#widgetzone_HomeTopV3b > section#widgetf3372f9d-704a-4926-92cb-92b9190fd8c5 > h2.widget-top`
See all » `section#widgetf3372f9d-704a-4926-92cb-92b9190fd8c5 > h2.widget-top > span.widget-see-all > a`
Recent MediKnowledge See all » `div.col-xs-12 > div#widgetzone_HomeMiddleLeftV3b > section#widget0d0c0c08-140b-4e0e-8ba4-7546c69f6eb0 > h2.widget-top`
See all » `section#widget0d0c0c08-140b-4e0e-8ba4-7546c69f6eb0 > h2.widget-top > span.widget-see-all > a`
Latest Interviews `div.col-xs-12 > div#widgetzone_HomeMiddleRightV3b > section#widget7cf5b65c-f0bb-4b9b-b54f-ce66d12c3669 > h2.widget-top`
Trending Stories `ul.nav > li.active > a > span`
Latest News `div.sidebar-container > div#widgetzone_CommonSidebarBottomV3 > section#widget68b649b4-9400-4eb9-92fa-00d85cb74cf2 > h2.widget-top`
Recent Blog Posts `div#widgetzone_HomeRightBottomV3 > section#widget5ba3abe5-8bec-400d-aa64-ce05331957c1 > h2.widget-top > a`
terms and conditions `div.footer-container > div.col-sm-9 > p.site-disclaimer > a`

These are opportunities to improve the legibility of your content.

○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

●Buttons have an accessible name

●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

●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.

●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

●Skip links are focusable.

●Document has a main landmark.

●Deprecated ARIA roles were not used

●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

○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

○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

○Form elements have associated labels

○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

○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.

100

Best Practices

General

Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL
/bundles/js/desktop/base?v=davmpbHaim9x7QBU9ZoNMcVZxW-vTj...

●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 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

○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.

Crawling and Indexing

Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable

Why this matters

Performance issues directly impact user engagement and conversion rates.

Uncrawlable Link
Menu `header > nav.main-menu > div.mobile-moremenu-wrap > a.moremenu`
More... `div.nav-right > ul.menu > li.hidden-xs > a.moremenu`
More... `div.nav-right > ul.menu > li.hidden-xs > a.moremenu`
Update Your Privacy Preferences `div.footer-container > div.col-sm-9 > div.footer-update-privacy-preferences > a`

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

○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

●robots.txt is valid

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`