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Lighthouse Mobile

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

Audit breakdown by category with detailed findings.

37

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.

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:38.333 source:map[column:42225 line:1 type:source-location url:https://analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMA.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:38.333 source:map[column:287665 line:0 type:source-location url:https://analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMA.js 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:900.379 label:Time to first byte subpart:timeToFirstByte] map[duration:15.686 label:Resource load delay subpart:resourceLoadDelay] map[duration:2074.223 label:Resource load duration subpart:resourceLoadDuration] map[duration:21.851 label:Element render delay subpart:elementRenderDelay]]
lhId: page-0-IMG
nodeLabel: Man in yellow high-vis shirt stands in front of earth-moving truck
path: 1,HTML,1,BODY,4,DIV,0,DIV,2,MAIN,4,DIV,0,ARTICLE,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,ARTICLE,0,PICTURE,6,IMG
selector: div.uq-hero__image > article > picture > img
snippet: <img loading="eager" width="764" height="500" src="https://uq.edu.au/sites/default/files/styles/hero_cta_xs_2x/public/2026-03…" alt="Man in yellow high-vis shirt stands in front of earth-moving truck" typeof="foaf:Image">

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: Man in yellow high-vis shirt stands in front of earth-moving truck
path: 1,HTML,1,BODY,4,DIV,0,DIV,2,MAIN,4,DIV,0,ARTICLE,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,ARTICLE,0,PICTURE,6,IMG
selector: div.uq-hero__image > article > picture > img
snippet: <img loading="eager" width="764" height="500" src="https://uq.edu.au/sites/default/files/styles/hero_cta_xs_2x/public/2026-03…" alt="Man in yellow high-vis shirt stands in front of earth-moving truck" typeof="foaf:Image">

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
uq.edu.au/http/1.1
/sites/default/files/css/css_bfc7WvMAshyQrTWjxxvvG4Rt8JXh...http/1.1
uq.edu.au/libraries/design-system/css/button.css?tdi9akhttp/1.1
uq.edu.au/libraries/design-system/css/hero.css?tdi9akhttp/1.1
uq.edu.au/libraries/design-system/css/card.css?tdi9akhttp/1.1
/sites/default/files/css/css_Pk76YP3wHCWEVuSX-A2KjkJORutm...http/1.1
/sites/default/files/css/css_DBGxDTakBhKYeIIAfJSgFPHtvt0G...http/1.1
uq.edu.au/libraries/design-system/css/core.css?tdi9akhttp/1.1
uq.edu.au/styleguide/css/base.css?tdi9akhttp/1.1
uq.edu.au/styleguide/css/constants.css?tdi9akhttp/1.1
/sites/default/files/css/css_fznkIgkO9ztBhwMK8wCnZ-sOJsZg...http/1.1
/sites/default/files/styles/hero_cta_xs_2x/public/2026-03...http/1.1
uq.edu.au/styleguide/images/universities-australia-logo.svghttp/1.1
uq.edu.au/styleguide/images/go8-logo.svghttp/1.1
uq.edu.au/styleguide/images/u21-logo.svghttp/1.1
uq.edu.au/styleguide/images/wun-logo.svghttp/1.1
uq.edu.au/styleguide/images/apru-logo.svghttp/1.1
/sites/default/files/js/js_A-2n_vbwsdy0l6fpqlil5xwzE5n88v...http/1.1
uq.edu.au/styleguide/js/analytics.drupal.js?v=1.0.0http/1.1
uq.edu.au/libraries/uq/js/collapsible-analytics.index.js?tdi9akhttp/1.1
uq.edu.au/libraries/design-system/js/accordion.js?tdi9akhttp/1.1
/sites/default/files/js/js_nkDyzuoTw73nC98OXOQ7rb2-adEHmf...http/1.1
uq.edu.au/styleguide/js/input-clear.js?tdi9akhttp/1.1
/sites/default/files/js/js_DB-MNXlGuv8baI4d5Z4jbbTFGCTXTQ...http/1.1
/sites/default/files/js/js_Tqfqr4ZcDnOQVvhX0KfXL29YYnguOf...http/1.1
/sites/default/files/styles/image_panel/public/2022-05/Fi...http/1.1
/sites/default/files/styles/uqds_card/public/2023-12/st-l...http/1.1
/sites/default/files/styles/uqds_card/public/2023-12/bran...http/1.1
/sites/default/files/styles/uqds_card/public/2023-12/bran...http/1.1
uq.edu.au/libraries/uq/js/chunks/analytics.es6-CAkIlpd_.jshttp/1.1
/profiles/custom/uq_standard_profile/themes/custom/uq_sta...http/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

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
UQ acknowledges the Traditional Owners and their custodianship of the lands on … div.dialog-off-canvas-main-canvas > div.page > footer.uq-footer > div.uq-acknowledgement
static.uq.net.au/v15/images/rap/brisbane-river-artwork.png162.7 KiB90.7 KiB
External view of Forgan Smith at St Lucia div.block > div.uq-card > div.uq-card__image > img
/sites/default/files/styles/uqds_card/public/2023-12/st-l...130.4 KiB89.9 KiB
Two students having a conversation div.block > div.uq-card > div.uq-card__image > img
/sites/default/files/styles/uqds_card/public/2023-12/bran...88.5 KiB61.0 KiB
Two students sitting looking at a laptop div.block > div.uq-card > div.uq-card__image > img
/sites/default/files/styles/uqds_card/public/2023-12/bran...81.2 KiB56.0 KiB
Man in yellow high-vis shirt stands in front of earth-moving truck div.uq-hero__image > article > picture > img
/sites/default/files/styles/hero_cta_xs_2x/public/2026-03...59.8 KiB23.1 KiB
Research looking through microscope section.section > article.section__content > div.grid__col > img
/sites/default/files/styles/image_panel/public/2022-05/Fi...44.5 KiB20.2 KiB

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

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.

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.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

CategoryTime Spent
Script Evaluation2.1 s
Other446 ms
Script Parsing & Compilation400 ms
Style & Layout332 ms
Rendering73 ms
Parse HTML & CSS58 ms
Garbage Collection27 ms

Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 2.4 KiB
URLTransfer SizeEst Savings
/sites/default/files/js/js_nkDyzuoTw73nC98OXOQ7rb2-adEHmf...8.8 KiB2.4 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
The University of Queensland div.uq-header__container > div.uq-header__logo > a.logo--large > img
static.uq.net.au/v11/logos/corporate/uq-logo--reversed.svg
Universities Australia ul.member-logos__link-container > li > a.member-logos__link > img
uq.edu.au/styleguide/images/universities-australia-logo.svg
Association of Pacific Rim Universities ul.member-logos__link-container > li > a.member-logos__link > img
uq.edu.au/styleguide/images/apru-logo.svg
Group of Eight ul.member-logos__link-container > li > a.member-logos__link > img
uq.edu.au/styleguide/images/go8-logo.svg
Worldwide Universities Network ul.member-logos__link-container > li > a.member-logos__link > img
uq.edu.au/styleguide/images/wun-logo.svg
Universitas 21 ul.member-logos__link-container > li > a.member-logos__link > img
uq.edu.au/styleguide/images/u21-logo.svg

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

●Layout shift culprits
●Document request latency
●Optimize DOM size
●Font display
●Optimize viewport for mobile
●Minify CSS
●Avoids enormous network payloads Total size was 2,591 KiB
●User Timing marks and measures 5 user timings
●Avoid long main-thread tasks 18 long tasks found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 290 ms
●Server Backend Latencies 390 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Avoid multiple page redirects
●Initial server response time was short Root document took 300 ms
○INP breakdown
○Avoid non-composited animations
○Avoid large layout shifts
91

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

When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
header.uq-header > div.uq-header__container > div.uq-header__search-toggle > button.nav-primary__toggle header.uq-header > div.uq-header__container > div.uq-header__search-toggle > button.nav-primary__toggle

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.

Contrast

Low-contrast text is difficult or impossible for many users to read. Link text that is discernible improves the experience for users with low vision. Learn how to make links distinguishable.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
00025B nav.uq-footer__meta > ul.uq-footer__footer-list > li.uq-footer__footer-item > a.uq-footer__link

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>`
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●Image elements have `[alt]` attributes
●Input buttons have discernible text.
●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 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 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.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○Deprecated ARIA roles were not used
○Elements with `role="dialog"` or `role="alertdialog"` 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
○`[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
○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 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.
○Identical links have the same purpose.
○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.
77

Best Practices

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / WarningSource
AttributionReporting

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
Failed to load resource: net::ERR_NAME_NOT_RESOLVED
Failed to load resource: the server responded with a status of 404 (Not Found)
●Uses HTTPS
●Avoids third-party cookies
●Allows users to paste into input fields
●Avoids requesting the geolocation permission on page load
●Avoids requesting the notification permission on page load
●Displays images with correct aspect ratio
●Serves images with appropriate resolution
●Page has the HTML doctype
●Properly defines charset
●No 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
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.

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
Study li.uq-header__newglobal-nav-item > ul > li > a.slide-menu__backlink
Study with us li > ul > li > a.slide-menu__backlink
Discover UQ li > ul > li > a.slide-menu__backlink
Information for li > ul > li > a.slide-menu__backlink
Research li.uq-header__newglobal-nav-item > ul > li > a.slide-menu__backlink
Our research li > ul > li > a.slide-menu__backlink
Graduate research li > ul > li > a.slide-menu__backlink
Partner with us li > ul > li > a.slide-menu__backlink
Partners and community li.uq-header__newglobal-nav-item > ul > li > a.slide-menu__backlink
Industry partnerships li > ul > li > a.slide-menu__backlink
Community engagement​ li > ul > li > a.slide-menu__backlink
Our facilities li > ul > li > a.slide-menu__backlink
About li.uq-header__newglobal-nav-item > ul > li > a.slide-menu__backlink
Our University li > ul > li > a.slide-menu__backlink
Campuses and facilities li > ul > li > a.slide-menu__backlink
Working with us li > ul > li > a.slide-menu__backlink

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`

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