Lighthouse Desktop

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

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Detailed Report

Audit breakdown by category with detailed findings.

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling

Why this matters

Performance issues directly impact user engagement and conversion rates.

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Request	Cache TTL	Transfer Size
cdn-oc.readspeaker.com/script/9755/webReader/webReader.js?pids=wr	0.0 ms	28.0 KiB
/script/9755/webReader/r/r2889/ReadSpeaker.Styles-Button....	86400.0 s	39.8 KiB
cdn.jsdelivr.net/npm/chart.js	604800.0 s	70.5 KiB

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.

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.

URL	Est Savings
/npm/bootstrap-icons@1.11.3/font/fonts/bootstrap-icons.wo...	50 ms

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:71.381 source:map[type:text value:[unattributed]]] map[reflowTime:32.654 source:map[column:6 line:198 type:source-location url:https://www.oaic.gov.au/__data/assets/git_bridge/0012/12063/js/main.js?h=0a5fa99 urlProvider:network]]]

Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]

items: [map[duration:1111.4079997558595 label:Time to first byte subpart:timeToFirstByte] map[duration:882.6550002441406 label:Resource load delay subpart:resourceLoadDelay] map[duration:708.563 label:Resource load duration subpart:resourceLoadDuration] map[duration:153.535 label:Element render delay subpart:elementRenderDelay]]

lhId: page-0-DIV

nodeLabel: We’re the independent national regulator for privacy and freedom of information…

path: 1,HTML,1,BODY,6,DIV,8,MAIN,1,DIV,0,DIV

selector: div.page-wrapper > main.main > div#main-content-area > div.homepage-banner

snippet: <div class="homepage-banner" style="">

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-DIV

nodeLabel: We’re the independent national regulator for privacy and freedom of information…

path: 1,HTML,1,BODY,6,DIV,8,MAIN,1,DIV,0,DIV

selector: div.page-wrapper > main.main > div#main-content-area > div.homepage-banner

snippet: <div class="homepage-banner" style="">

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

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.

URL	Transfer Size	Duration
cdn-oc.readspeaker.com/script/9755/webReader/webReader.js?pids=wr	28.0 KiB	667 ms
www.oaic.gov.au/__data/assets/git_bridge/0012/12063/main.css?h=0a5fa99	19.2 KiB	80 ms
www.oaic.gov.au/__data/assets/css_file/0024/240585/custom.css?v=0.1.388	8.7 KiB
cdn.jsdelivr.net/npm/bootstrap-icons@1.11.3/font/bootstrap-icons.min.css	13.8 KiB	213 ms
/css2?family=Source+Code+Pro:ital,wght@0,200;0,300;0,400;...	1.8 KiB	210 ms
/css2?family=Source+Sans+Pro:wght@300;400;600;700&display...	931 B

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Resource Size	Est Savings
Aeriel image of a suburb `div.related-articles__container > div.related-articles__three-cols > div.related-articles__card > img.related-articles__image`	www.oaic.gov.au/__data/assets/image/0024/244563/Places-suburbs-01.jpg	1006.3 KiB	994.9 KiB
div.related-articles__container > div.related-articles__three-cols > div.related-articles__card > img.related-articles__image `div.related-articles__container > div.related-articles__three-cols > div.related-articles__card > img.related-articles__image`	www.oaic.gov.au/__data/assets/image/0019/236134/Engage-with-us-submissions.jpg	454.2 KiB	442.8 KiB
div.cards > div.card > div.image > img.card-img `div.cards > div.card > div.image > img.card-img`	www.oaic.gov.au/__data/assets/image/0023/252608/COP-code-learn-about.png	387.4 KiB	381.9 KiB
div.cards > div.card > div.image > img.card-img `div.cards > div.card > div.image > img.card-img`	www.oaic.gov.au/__data/assets/image/0027/39456/homepage-data-breach.jpg	323.0 KiB	313.5 KiB
div#main-content-area > div.full-width-card > div.card > img.card-img `div#main-content-area > div.full-width-card > div.card > img.card-img`	www.oaic.gov.au/__data/assets/image/0026/262646/COP-code-website-homepage.png	337.0 KiB	301.7 KiB
div.related-articles__container > div.related-articles__three-cols > div.related-articles__card > img.related-articles__image `div.related-articles__container > div.related-articles__three-cols > div.related-articles__card > img.related-articles__image`	/__data/assets/image/0023/262364/FOI-Commissioner-update-...	297.8 KiB	283.2 KiB
div.related-articles__container > div.related-articles__three-cols > div.related-articles__card > img.related-articles__image `div.related-articles__container > div.related-articles__three-cols > div.related-articles__card > img.related-articles__image`	/__data/assets/image/0026/261467/Privacy-complaint-blog-w...	246.9 KiB	232.3 KiB
Photograph of young people using computers `div.related-articles__container > div.related-articles__three-cols > div.related-articles__card > img.related-articles__image`	www.oaic.gov.au/__data/assets/image/0033/74967/Newsroom-article-children-09.jpg	214.8 KiB	203.4 KiB
div.cards > div.card > div.image > img.card-img `div.cards > div.card > div.image > img.card-img`	www.oaic.gov.au/__data/assets/image/0018/254034/Statutory-tort.jpg	130.2 KiB	118.6 KiB
div.cards > div.card > div.image > img.card-img `div.cards > div.card > div.image > img.card-img`	/__data/assets/image/0026/255266/Blog-AI-and-productivity...	180.1 KiB	115.1 KiB
div.related-articles__container > div.related-articles__three-cols > div.related-articles__card > img.related-articles__image `div.related-articles__container > div.related-articles__three-cols > div.related-articles__card > img.related-articles__image`	/__data/assets/image/0031/259942/Safer-Internet-Day-blog-...	35.3 KiB	26.0 KiB

These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.

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 21.2 KiB

URL	Transfer Size	Est Savings
www.oaic.gov.au/__data/assets/git_bridge/0012/12063/js/main.js?h=0a5fa99	68.5 KiB	21.2 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: 40 ms 66.9 KiB

URL	Transfer Size	Est Savings
/script/9755/webReader/r/r2889/ReadSpeaker.Styles-Button....	39.4 KiB	39.4 KiB
www.oaic.gov.au/__data/assets/git_bridge/0012/12063/main.css?h=0a5fa99	19.2 KiB	14.4 KiB
cdn.jsdelivr.net/npm/bootstrap-icons@1.11.3/font/bootstrap-icons.min.css	13.1 KiB	13.0 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: 320 ms 389.3 KiB

URL	Transfer Size	Est Savings
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js	343.3 KiB	167.7 KiB
www.googletagmanager.com/gtag/js?id=G-H51KRLH8K8&cx=c&gtm=4e64k0	160.0 KiB	65.7 KiB
www.googletagmanager.com/gtm.js?id=GTM-PTH9SP3B	119.4 KiB	63.4 KiB
cdn.jsdelivr.net/npm/chart.js	70.1 KiB	62.6 KiB
www.oaic.gov.au/__data/assets/git_bridge/0012/12063/js/main.js?h=0a5fa99	68.5 KiB	29.9 KiB

Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 2.2 KiB

URL	Transfer Size	Est Savings
www.oaic.gov.au/__data/assets/css_file/0024/240585/custom.css?v=0.1.388	8.7 KiB	2.2 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.

URL	Transfer Size
www.oaic.gov.au/__data/assets/image/0024/244563/Places-suburbs-01.jpg	1006.8 KiB
www.oaic.gov.au/__data/assets/image/0019/236134/Engage-with-us-submissions.jpg	454.5 KiB
www.oaic.gov.au/__data/assets/image/0025/39481/homepage-FOI-3.jpg	437.3 KiB
www.oaic.gov.au/__data/assets/image/0030/245568/Homepage-hero-annual-report.jpg	434.7 KiB
www.oaic.gov.au/__data/assets/image/0024/39480/homepage-FOI-2.jpg	424.9 KiB
www.oaic.gov.au/__data/assets/image/0023/252608/COP-code-learn-about.png	387.7 KiB
www.oaic.gov.au/__data/assets/image/0026/39482/homepage-FOI-4.jpg	377.6 KiB
www.oaic.gov.au/__data/assets/image/0028/39475/homepage-cdr-3.jpg	373.3 KiB
www.oaic.gov.au/__data/assets/image/0030/39477/homepage-cdr-5.jpg	372.0 KiB
www.oaic.gov.au/__data/assets/image/0031/39478/homepage-cdr-6.jpg	371.5 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
OAIC on Twitter `ul.social-list > li > a.social-link > img.social-icon`	www.oaic.gov.au/__data/assets/file/0026/12959/x-logo.svg
Office of the Australian Information Commissioner (OAIC) `header.site-header > div.header-content > a.header-logo > img`	www.oaic.gov.au/__data/assets/file/0020/13664/oaic-header-logo.svg
OAIC on Instagram `ul.social-list > li > a.social-link > img.social-icon`	www.oaic.gov.au/__data/assets/file/0023/91364/Instagram_Glyph_White.svg
ul.social-list > li > a.social-link > img.social-icon `ul.social-list > li > a.social-link > img.social-icon`	www.oaic.gov.au/__data/assets/file/0027/260946/rss.svg
Information Publication Scheme `div.footer__upper--wrapper > div.footer__logo-group > a.footer-logo > img.logo--sub`	www.oaic.gov.au/__data/assets/image/0026/91385/ips_white_text.png
OAIC logo `div.footer__upper > div.footer__upper--wrapper > div.footer__logo-group > img.logo--main`	www.oaic.gov.au/__data/assets/file/0020/12962/logo.svg
OAIC sub logo `div.footer__upper--wrapper > div.footer__logo-group > a.footer-logo > img.logo--sub`	www.oaic.gov.au/__data/assets/file/0021/12963/logo2.svg
Search `div.search-container > form.input-form > button > img.search-icon`	www.oaic.gov.au/__data/assets/file/0023/13667/search-outline.svg
search icon thst submits form `div.homepage-search > form.input-form > button > img.search-icon`	www.oaic.gov.au/__data/assets/file/0023/13667/search-outline.svg
expand menu `div.header-nav__item > button.header-nav__button > div.header-nav__desktop-toggle > img`	/__data/assets/git_bridge/0012/12063/mysource_files/chevr...
expand menu `div.header-nav__item > button.header-nav__button > div.header-nav__desktop-toggle > img`	/__data/assets/git_bridge/0012/12063/mysource_files/chevr...
expand menu `div.header-nav__item > button.header-nav__button > div.header-nav__desktop-toggle > img`	/__data/assets/git_bridge/0012/12063/mysource_files/chevr...
expand menu `div.header-nav__item > button.header-nav__button > div.header-nav__desktop-toggle > img`	/__data/assets/git_bridge/0012/12063/mysource_files/chevr...
expand menu `div.header-nav__item > button.header-nav__button > div.header-nav__desktop-toggle > img`	/__data/assets/git_bridge/0012/12063/mysource_files/chevr...
OAIC on Linkedin `ul.social-list > li > a.social-link > img.social-icon`	www.oaic.gov.au/__data/assets/file/0019/12961/linkedin.svg
OAIC on Youtube `ul.social-list > li > a.social-link > img.social-icon`	www.oaic.gov.au/__data/assets/file/0018/12960/youtube.svg
div.related-articles__content > div.related-articles__more > div.related-articles__article-link > img `div.related-articles__content > div.related-articles__more > div.related-articles__article-link > img`	www.oaic.gov.au/__data/assets/file/0020/12548/arrow.svg
div.related-articles__content > div.related-articles__more > div.related-articles__article-link > img `div.related-articles__content > div.related-articles__more > div.related-articles__article-link > img`	www.oaic.gov.au/__data/assets/file/0020/12548/arrow.svg
div.related-articles__content > div.related-articles__more > div.related-articles__article-link > img `div.related-articles__content > div.related-articles__more > div.related-articles__article-link > img`	www.oaic.gov.au/__data/assets/file/0020/12548/arrow.svg
div.related-articles__content > div.related-articles__more > div.related-articles__article-link > img `div.related-articles__content > div.related-articles__more > div.related-articles__article-link > img`	www.oaic.gov.au/__data/assets/file/0020/12548/arrow.svg
div.related-articles__content > div.related-articles__more > div.related-articles__article-link > img `div.related-articles__content > div.related-articles__more > div.related-articles__article-link > img`	www.oaic.gov.au/__data/assets/file/0020/12548/arrow.svg
div.related-articles__content > div.related-articles__more > div.related-articles__article-link > img `div.related-articles__content > div.related-articles__more > div.related-articles__article-link > img`	www.oaic.gov.au/__data/assets/file/0020/12548/arrow.svg
OAIC on Facebook `ul.social-list > li > a.social-link > img.social-icon`	www.oaic.gov.au/__data/assets/file/0025/12958/facebook.svg

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

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: 277 ms

URL	Time Spent
oaic.gov.au/	277 ms
www.oaic.gov.au/	0.0 ms

●Time to Interactive 2.4 s

●Max Potential First Input Delay 100 ms

●Layout shift culprits

●Optimize DOM size

●Modern HTTP

●Optimize viewport for mobile

●User Timing marks and measures 5 user timings

●JavaScript execution time 0.5 s

●Minimizes main-thread work 1.2 s

●Avoid long main-thread tasks 3 long tasks found

●Avoid non-composited animations 1 animated element found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 90 ms

●Server Backend Latencies 90 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 90 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.

○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.

●Select elements have associated label elements.

●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

●Touch targets have sufficient size and spacing.

●`[lang]` attributes have a valid value

●Heading elements appear in a sequentially-descending order

●Document has a main landmark.

●Deprecated ARIA roles were not used

●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

○The document does not use `<meta http-equiv="refresh">`

○`<object>` elements have alternate text

○Skip links are focusable.

○No element has a `[tabindex]` value greater than 0

○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.

○`<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.

○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.

○`<td>` elements in a large `<table>` have one or more table headers.

Best Practices

General

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.

Source	Description
/engage-with-us/events/privacy-awareness-week/paw-2025/fi...	`Failed to load resource: the server responded with a status of 403 ()`

●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 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`