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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.

49

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
/images/carousel/w1920h1080/bf5n5a_farmer-on-mobile-phone...0.0 ms1.6 MiB
www.healthdirect.gov.au/assets/1/styles/main.css600.0 s666.2 KiB
www.healthdirect.gov.au/assets/1/scripts/veyron.js600.0 s125.6 KiB
/signals/config/286390378916509?v=2.9.303&r=stable&domain...1200.0 s101.9 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s96.6 KiB
www.healthdirect.gov.au/assets/images/logo-gov-wa.svg600.0 s69.1 KiB
www.healthdirect.gov.au/assets/images/logo-gov-dep-health.svg600.0 s43.6 KiB
/components/webcomponentsjs/0.7.20/webcomponents-lite.min.js600.0 s39.0 KiB
www.healthdirect.gov.au/assets/images/SC-landing_page.svg600.0 s38.5 KiB
/signals/config/269174040245015?v=2.9.303&r=stable&domain...1200.0 s34.6 KiB
cdn-oc.readspeaker.com/script/8207/webReader/webReader.js?pids=wr0.0 ms28.2 KiB
www.healthdirect.gov.au/assets/images/logo-gov-qld.svg600.0 s28.4 KiB
www.healthdirect.gov.au/assets/1/scripts/hsfPanel.js600.0 s24.3 KiB
www.healthdirect.gov.au/assets/images/logo-gov-act.svg600.0 s21.5 KiB
www.healthdirect.gov.au/assets/images/logo-gov-sa.svg600.0 s21.0 KiB
www.redditstatic.com/ads/pixel.js60.0 s19.0 KiB
/script/8207/webReader/r/r2889/ReadSpeaker.Styles-Button....86400.0 s39.9 KiB
www.healthdirect.gov.au/assets/1/scripts/auth.js600.0 s10.3 KiB
www.healthdirect.gov.au/assets/1/scripts/http-helper.js600.0 s9.5 KiB
www.healthdirect.gov.au/assets/images/logo-gov-tas.svg600.0 s8.9 KiB
www.healthdirect.gov.au/assets/images/logo-hda.svg600.0 s6.5 KiB
www.healthdirect.gov.au/assets/images/app-google-play.png600.0 s6.3 KiB
www.healthdirect.gov.au/assets/images/app-apple-store.png600.0 s6.2 KiB
www.healthdirect.gov.au/assets/images/logo-gov-nsw.svg600.0 s5.6 KiB
www.healthdirect.gov.au/assets/images/logo-gov-nt.svg600.0 s5.4 KiB
www.healthdirect.gov.au/assets/images/logo-gov-vic.svg600.0 s4.4 KiB
www.healthdirect.gov.au/assets/1/scripts/home.js600.0 s3.1 KiB
www.healthdirect.gov.au/assets/1/scripts/idle-session-timeout.js600.0 s2.5 KiB
www.healthdirect.gov.au/components/veyron/bootstrapper.js600.0 s1.7 KiB
/rp.gif?ts=1776895270373&id=a2_h7rhbsh1b9m8&event=PageVis...0.0 ms666 B
www.gstatic.com/recaptcha/api2/logo_48.png604800.0 s2.3 KiB
/tr/?id=269174040245015&ev=PageView&dl=https%3A%2F%2Fwww....0.0 ms19 B
/tr/?id=286390378916509&ev=PageView&dl=https%3A%2F%2Fwww....0.0 ms16 B

Layout shifts occur when elements move absent any user interaction. Investigate the causes of layout shifts, such as elements being added, removed, or their fonts changing as the page loads.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]
items: [map[node:map[type:text value:Total] score:0.230751] map[node:map[boundingRect:map[bottom:1201 height:592 left:0 right:1350 top:609 width:1350] lhId:page-7-SECTION nodeLabel:Check your symptoms Find a health service Find health information Symptom Chec… path:2,HTML,1,BODY,4,MAIN,3,SECTION selector:body > main.homepage > section.homepage_content snippet:<section class="homepage_content"> type:node] score:0.230418 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:1161 height:241 left:170 right:655 top:920 width:485] lhId:page-10-IMG nodeLabel:div.veyron-symptomchecker-panel-homepage > form.cont > div.widget-sym-col > img.widget-sym-img path:2,HTML,1,BODY,4,MAIN,3,SECTION,1,DIV,1,DIV,1,SECTION,0,DIV,0,FORM,0,DIV,2,IMG selector:div.veyron-symptomchecker-panel-homepage > form.cont > div.widget-sym-col > img.widget-sym-img snippet:<img class="widget-sym-img tablet-up" src="assets/images/SC-landing_page.svg"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:142 height:42 left:857 right:1200 top:100 width:343] lhId:page-3-FORM nodeLabel:Enter your search terms path:2,HTML,1,BODY,3,HEADER,0,DIV,1,DIV,2,NAV,1,UL,5,LI,1,FORM selector:nav.hda-head_menu-row-bar > ul.hda-head_menu-row-bar-nav > li.hda-head_menu-row-bar-nav-level-1-item > form#search-form-node-desktop-mode snippet:<form id="search-form-node-desktop-mode" class="hda-head_menu-row-node-desktop-mode-search"> type:node] score:0.000333 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:1161 height:241 left:170 right:655 top:920 width:485] lhId:page-10-IMG nodeLabel:div.veyron-symptomchecker-panel-homepage > form.cont > div.widget-sym-col > img.widget-sym-img path:2,HTML,1,BODY,4,MAIN,3,SECTION,1,DIV,1,DIV,1,SECTION,0,DIV,0,FORM,0,DIV,2,IMG selector:div.veyron-symptomchecker-panel-homepage > form.cont > div.widget-sym-col > img.widget-sym-img snippet:<img class="widget-sym-img tablet-up" src="assets/images/SC-landing_page.svg"> type:node]]] type:subitems]]]

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:12.719 source:map[column:20540 line:5 type:source-location url:https://www.healthdirect.gov.au/assets/1/scripts/veyron.js urlProvider:network]] map[reflowTime:36.767 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.

URLResource SizeEst Savings
Get health information and advice body > main.homepage > header.homepage_hero
/images/carousel/w1920h1080/bf5n5a_farmer-on-mobile-phone...1.6 MiB1.3 MiB
download from google play div.hda-foot_col-social-app > p > a > img.hda-foot_col-social-app-store-img
www.healthdirect.gov.au/assets/images/app-google-play.png5.5 KiB4.1 KiB
download from the App store div.hda-foot_col-social-app > p > a > img.hda-foot_col-social-app-store-img
www.healthdirect.gov.au/assets/images/app-apple-store.png5.5 KiB4.1 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-HEADER
nodeLabel: Get health information and advice
path: 2,HTML,1,BODY,4,MAIN,1,HEADER
selector: body > main.homepage > header.homepage_hero
snippet: <header class="homepage_hero veyron-home-carousel show" style="background-image: url(&quot;https://media.healthdirect.org.au/images/carousel/w1…&quot;);">

HTTP/2 and HTTP/3 offer many benefits over HTTP/1.1, such as multiplexing. Learn more about using modern HTTP.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLProtocol
www.healthdirect.gov.au/http/1.1
www.healthdirect.gov.au/assets/1/styles/main.csshttp/1.1
www.healthdirect.gov.au/assets/1/scripts/veyron.jshttp/1.1
www.healthdirect.gov.au/assets/images/logo-hda.svghttp/1.1
www.healthdirect.gov.au/assets/1/scripts/idle-session-timeout.jshttp/1.1
www.healthdirect.gov.au/assets/1/scripts/http-helper.jshttp/1.1
www.healthdirect.gov.au/assets/1/scripts/auth.jshttp/1.1
www.healthdirect.gov.au/assets/images/SC-landing_page.svghttp/1.1
www.healthdirect.gov.au/assets/1/scripts/hsfPanel.jshttp/1.1
www.healthdirect.gov.au/assets/1/scripts/home.jshttp/1.1
www.healthdirect.gov.au/assets/images/logo-gov-dep-health.svghttp/1.1
www.healthdirect.gov.au/assets/images/logo-gov-act.svghttp/1.1
www.healthdirect.gov.au/assets/images/logo-gov-nsw.svghttp/1.1
www.healthdirect.gov.au/assets/images/logo-gov-nt.svghttp/1.1
www.healthdirect.gov.au/assets/images/logo-gov-qld.svghttp/1.1
www.healthdirect.gov.au/assets/images/logo-gov-sa.svghttp/1.1
www.healthdirect.gov.au/assets/images/logo-gov-tas.svghttp/1.1
www.healthdirect.gov.au/assets/images/logo-gov-vic.svghttp/1.1
www.healthdirect.gov.au/assets/images/logo-gov-wa.svghttp/1.1
www.healthdirect.gov.au/assets/images/app-apple-store.pnghttp/1.1
www.healthdirect.gov.au/assets/images/app-google-play.pnghttp/1.1
www.healthdirect.gov.au/components/veyron/bootstrapper.jshttp/1.1
/components/webcomponentsjs/0.7.20/webcomponents-lite.min.jshttp/1.1
www.healthdirect.gov.au/assets/images/favicon-32x32.pnghttp/1.1

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.

URLTransfer SizeDuration
cdn-oc.readspeaker.com/script/8207/webReader/webReader.js?pids=wr28.2 KiB622 ms
www.healthdirect.gov.au/assets/1/scripts/veyron.js125.6 KiB513 ms
www.healthdirect.gov.au/assets/1/styles/main.css666.2 KiB1.0 s

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.

URLEst Savings
fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff25.0 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: 683 ms
URLTime Spent
healthdirect.gov.au/493 ms
www.healthdirect.gov.au/190 ms
www.healthdirect.gov.au/0.0 ms

These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS

Why this matters

Performance issues directly impact user engagement and conversion rates.

ElementLayout shift score
Check your symptoms Find a health service Find health information Symptom Chec… body > main.homepage > section.homepage_content
0.230
Enter your search terms nav.hda-head_menu-row-bar > ul.hda-head_menu-row-bar-nav > li.hda-head_menu-row-bar-nav-level-1-item > form#search-form-node-desktop-mode
0.000

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 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: 620 ms 651.5 KiB
URLTransfer SizeEst Savings
www.healthdirect.gov.au/assets/1/styles/main.css665.4 KiB612.1 KiB
/script/8207/webReader/r/r2889/ReadSpeaker.Styles-Button....39.4 KiB39.4 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: 490 ms 570.0 KiB
URLTransfer SizeEst Savings
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js361.8 KiB177.1 KiB
www.healthdirect.gov.au/assets/1/scripts/veyron.js124.6 KiB68.1 KiB
www.googletagmanager.com/gtag/js?id=G-BPFE5ERX9H&cx=c&gtm=4e64k0171.9 KiB67.3 KiB
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwOQ.js120.6 KiB62.8 KiB
www.googletagmanager.com/gtag/js?id=AW-832016230144.3 KiB55.1 KiB
www.googletagmanager.com/gtm.js?id=GTM-MHFB33K184.3 KiB54.9 KiB
connect.facebook.net/en_US/fbevents.js96.5 KiB35.7 KiB
/signals/config/286390378916509?v=2.9.303&r=stable&domain...101.8 KiB24.9 KiB
/components/webcomponentsjs/0.7.20/webcomponents-lite.min.js38.4 KiB24.0 KiB

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 2.4 KiB
URLTransfer SizeEst Savings
inline: function supported…3.1 KiB2.4 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
/images/carousel/w1920h1080/bf5n5a_farmer-on-mobile-phone...1.6 MiB
www.healthdirect.gov.au/assets/1/styles/main.css666.2 KiB
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js362.4 KiB
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js361.9 KiB
www.googletagmanager.com/gtm.js?id=GTM-MHFB33K184.7 KiB
www.googletagmanager.com/gtag/js?id=G-BPFE5ERX9H&cx=c&gtm=4e64k0171.9 KiB
www.googletagmanager.com/gtag/js?id=AW-832016230144.3 KiB
www.healthdirect.gov.au/assets/1/scripts/veyron.js125.6 KiB
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwOQ.js121.3 KiB
/signals/config/286390378916509?v=2.9.303&r=stable&domain...101.9 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
div.veyron-symptomchecker-panel-homepage > form.cont > div.widget-sym-col > img.widget-sym-img div.veyron-symptomchecker-panel-homepage > form.cont > div.widget-sym-col > img.widget-sym-img
www.healthdirect.gov.au/assets/images/SC-landing_page.svg
download from google play div.hda-foot_col-social-app > p > a > img.hda-foot_col-social-app-store-img
www.healthdirect.gov.au/assets/images/app-google-play.png
download from the App store div.hda-foot_col-social-app > p > a > img.hda-foot_col-social-app-store-img
www.healthdirect.gov.au/assets/images/app-apple-store.png
ACT Government logo section.content_partners > div > a > img
www.healthdirect.gov.au/assets/images/logo-gov-act.svg
Victorian government logo section.content_partners > div > a > img
www.healthdirect.gov.au/assets/images/logo-gov-vic.svg
Australian Government, health department logo section.content_partners > div > a > img
www.healthdirect.gov.au/assets/images/logo-gov-dep-health.svg
Government of South Australia logo section.content_partners > div > a > img
www.healthdirect.gov.au/assets/images/logo-gov-sa.svg
Tasmanian government logo section.content_partners > div > a > img
www.healthdirect.gov.au/assets/images/logo-gov-tas.svg
Government of Western Australia logo section.content_partners > div > a > img
www.healthdirect.gov.au/assets/images/logo-gov-wa.svg
healthdirect australia logo div.hda-head_content-common > div.hda-head_col-logo > a.hda-head_col-logo-link > img.hda-head_col-logo-img
www.healthdirect.gov.au/assets/images/logo-hda.svg
Healthdirect logo body > section.content_partners > img.content_partners-hda-logo
www.healthdirect.gov.au/assets/images/logo-hda.svg
New South Wales government logo section.content_partners > div > a > img
www.healthdirect.gov.au/assets/images/logo-gov-nsw.svg
Northern Territory Government logo section.content_partners > div > a > img
www.healthdirect.gov.au/assets/images/logo-gov-nt.svg
Queensland Government logo section.content_partners > div > a > img
www.healthdirect.gov.au/assets/images/logo-gov-qld.svg

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

●Max Potential First Input Delay 120 ms
●Optimize DOM size
●LCP breakdown
●Optimize viewport for mobile
●Minify CSS
●User Timing marks and measures 14 user timings
●JavaScript execution time 0.8 s
●Minimizes main-thread work 1.5 s
●Avoid long main-thread tasks 5 long tasks found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 90 ms
●Server Backend Latencies 360 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 110 ms
○INP breakdown
○Avoid non-composited animations
95

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

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
div.veyron-symptomchecker-panel-homepage > form.cont > div.widget-sym-col > img.widget-sym-img div.veyron-symptomchecker-panel-homepage > form.cont > div.widget-sym-col > img.widget-sym-img

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.

○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
●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
●`[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
●`[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
●`<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
●ARIA IDs are unique
●Identical links have the same purpose.
○`[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 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>`.
○All heading elements contain content.
○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.
58

Best Practices

Trust and Safety

All sites should be protected with HTTPS, even ones that don't handle sensitive data. This includes avoiding mixed content, where some resources are loaded over HTTP despite the initial request being served over HTTPS. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs. Learn more about HTTPS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Insecure URLRequest Resolution
www.healthdirect.gov.au/Allowed

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
AttributionReporting
connect.facebook.net/en_US/fbevents.js line 279, col 769

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
www.healthdirect.gov.au/assets/1/scripts/http-helper.js
ReferenceError: require is not defined at https://www.healthdirect.gov.au/assets/1/scripts/http-helper.js:1:7335
●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 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
92

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

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
div.veyron-symptomchecker-panel-homepage > form.cont > div.widget-sym-col > img.widget-sym-img div.veyron-symptomchecker-panel-homepage > form.cont > div.widget-sym-col > img.widget-sym-img

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 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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