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.

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.

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.

title: Preconnected origins

description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.

title: Preconnect candidates

value: No additional origins are good candidates for preconnecting

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
cc.cdn.civiccomputing.com/9/cookieControl-9.x.min.js	604800.0 s	123.3 KiB

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
Students walking outside library `div.column > div.SB028_2_HorizontalCard__4k1e4 > figure.SB014_1_SB014_1__figure__5AMlD > img._image_1wjha_15`	/f/185167/3840x2160/0d94c5b078/welaunch_uea_d2_s12_canon-...	541.6 KiB	527.2 KiB
Career adviser smiling and listening to a student during an employability suppo… `div.columns > div.column > figure.SB014_1_SB014_1__figure__5AMlD > img._image_1wjha_15`	/f/185167/2061x2061/3441620a73/uea-careers-shoot-at-libra...	183.6 KiB	176.5 KiB
Student ambassador at an Open Day `div.column > div.SB028_2_HorizontalCard__4k1e4 > figure.SB014_1_SB014_1__figure__5AMlD > img._image_1wjha_15`	/f/185167/3840x2160/4fc6e8a5d7/student-ambassadors-297_da...	152.0 KiB	147.9 KiB
Researchers talking `article.SB004_3_theme_www_v2_CtaCardWrapper__ULLmY > div.SB004_3_theme_www_v2_CtaCard__kqjol > figure.SB004_3_theme_www_v2_CardImage__g1u5b > img._image_1wjha_15`	/f/185167/5217x3588/766a248f56/uea-nh-bengarrod-1642_neil...	23.0 KiB	17.2 KiB
Researchers talking `article.SB004_3_theme_www_v2_CtaCardWrapper__ULLmY > div.SB004_3_theme_www_v2_CtaCard__kqjol > figure.SB004_3_theme_www_v2_CardImage__g1u5b > img._image_1wjha_15`	/f/185167/5217x3588/766a248f56/uea-nh-bengarrod-1642_neil...	23.0 KiB	17.2 KiB
Researchers talking `article.SB004_3_theme_www_v2_CtaCardWrapper__ULLmY > div.SB004_3_theme_www_v2_CtaCard__kqjol > figure.SB004_3_theme_www_v2_CardImage__g1u5b > img._image_1wjha_15`	/f/185167/5217x3588/766a248f56/uea-nh-bengarrod-1642_neil...	17.8 KiB	14.8 KiB
A student with long dark hair and wearing a yellow cardigan is smiling in a gro… `div > section._Hero_leiqp_1 > figure._Hero__image_leiqp_221 > img._image_1wjha_15`	/f/185167/3840x2160/57d1f45633/economics-event-12th-march...	30.6 KiB	12.3 KiB
Student ambassador at an Open Day `div.column > div.SB028_2_HorizontalCard__4k1e4 > figure.SB014_1_SB014_1__figure__5AMlD > img._image_1wjha_15`	/f/185167/3840x2160/4fc6e8a5d7/student-ambassadors-297_da...	12.9 KiB	11.4 KiB
Students walking outside library `div.column > div.SB028_2_HorizontalCard__4k1e4 > figure.SB014_1_SB014_1__figure__5AMlD > img._image_1wjha_15`	/f/185167/3840x2160/0d94c5b078/welaunch_uea_d2_s12_canon-...	11.4 KiB	9.9 KiB
Researchers talking `article.SB004_3_theme_www_v2_CtaCardWrapper__ULLmY > div.SB004_3_theme_www_v2_CtaCard__kqjol > figure.SB004_3_theme_www_v2_CardImage__g1u5b > img._image_1wjha_15`	/f/185167/5217x3588/766a248f56/uea-nh-bengarrod-1642_neil...	25.9 KiB	8.4 KiB
Career adviser smiling and listening to a student during an employability suppo… `div.columns > div.column > figure.SB014_1_SB014_1__figure__5AMlD > img._image_1wjha_15`	/f/185167/2061x2061/3441620a73/uea-careers-shoot-at-libra...	10.8 KiB	8.1 KiB
What Uni Logo `div._wrapper_16xt8_1 > div._inner_16xt8_42 > figure > img._image_1wjha_15`	/f/185167/1031x1129/3bed529ff2/whatuni.png/m/110x120/filt...	7.2 KiB	5.1 KiB
What Uni Logo `div._wrapper_16xt8_1 > div._inner_16xt8_42 > figure > img._image_1wjha_15`	/f/185167/1031x1129/3bed529ff2/whatuni.png/m/0x120/filter...	7.2 KiB	5.1 KiB

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
www.uea.ac.uk/_next/static/css/738588a1d4590f2f.css	7.5 KiB
www.uea.ac.uk/_next/static/css/ec4d378141425e14.css	8.0 KiB
www.uea.ac.uk/_next/static/css/6addbbe9f3e79a2e.css	2.2 KiB
www.uea.ac.uk/_next/static/css/b2b72453a8a1992e.css	4.4 KiB
www.uea.ac.uk/_next/static/css/42bf2529b5666c12.css	5.6 KiB
www.uea.ac.uk/_next/static/css/ea1b7c0a9cb4b81a.css	11.4 KiB
www.uea.ac.uk/_next/static/css/d306d2c886e55ba7.css	17.0 KiB
www.uea.ac.uk/_next/static/css/8a7a63efe6d84c2d.css	5.3 KiB
www.uea.ac.uk/_next/static/css/0f1cbe555090b939.css	5.6 KiB
www.uea.ac.uk/_next/static/css/a62496badc7f1fdc.css	3.2 KiB
www.uea.ac.uk/_next/static/css/3622d8e8a98c970f.css	7.1 KiB
www.uea.ac.uk/_next/static/css/df2be0f5ae124bd0.css	8.5 KiB
www.uea.ac.uk/_next/static/css/84e1f0f74f0b102b.css	11.1 KiB

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

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 368 ms

URL	Time Spent
uea.ac.uk/	368 ms
www.uea.ac.uk/	0.0 ms

Keep the server response time for the main document short because all other requests depend on it. Learn more about the Time to First Byte metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 620 ms

URL	Time Spent
www.uea.ac.uk/	720 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

Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reason	Failure type
Pages with cache-control:no-store header cannot enter back/forward cache.	Actionable
Pages whose main resource has cache-control:no-store cannot enter back/forward cache.	Not actionable
Back/forward cache is disabled because some JavaScript network request received resource with Cache-Control: no-store header.	Not actionable

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: 0.0 ms 20.9 KiB

URL	Transfer Size	Est Savings
www.uea.ac.uk/_next/static/css/ea1b7c0a9cb4b81a.css	10.8 KiB	10.8 KiB
www.uea.ac.uk/_next/static/css/84e1f0f74f0b102b.css	10.5 KiB	10.1 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: 0.0 ms 602.8 KiB

URL	Transfer Size	Est Savings
www.uea.ac.uk/_next/static/chunks/600-e15e488baeef4462.js	209.5 KiB	145.1 KiB
www.uea.ac.uk/_next/static/chunks/app/layout-89fd0eca38f23b7f.js	186.4 KiB	100.8 KiB
www.googletagmanager.com/gtm.js?id=GTM-KW8WQ56	197.2 KiB	72.7 KiB
www.googletagmanager.com/gtag/js?id=AW-957113788&cx=c&gtm=4e64k0	145.3 KiB	65.5 KiB
www.googletagmanager.com/gtag/js?id=G-67WCHB0WM4&cx=c&gtm=4e64k0	157.5 KiB	63.9 KiB
cc.cdn.civiccomputing.com/9/cookieControl-9.x.min.js	122.9 KiB	57.5 KiB
www.uea.ac.uk/_next/static/chunks/856-c63c341d9439a993.js	79.9 KiB	39.6 KiB
www.uea.ac.uk/_next/static/chunks/529ae171-94247cf8d4a2196f.js	49.0 KiB	30.4 KiB
js-agent.newrelic.com/nr-spa-recorder-1.292.0.min.js	40.5 KiB	27.3 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
/f/185167/3840x2160/0d94c5b078/welaunch_uea_d2_s12_canon-...	542.2 KiB
/f/185167/3840x2160/0d94c5b078/welaunch_uea_d2_s12_canon-...	542.0 KiB
www.uea.ac.uk/_next/static/chunks/600-e15e488baeef4462.js	210.4 KiB
www.googletagmanager.com/gtm.js?id=GTM-KW8WQ56	197.5 KiB
www.uea.ac.uk/_next/static/chunks/app/layout-89fd0eca38f23b7f.js	187.0 KiB
/f/185167/2061x2061/3441620a73/uea-careers-shoot-at-libra...	184.0 KiB
/f/185167/2061x2061/3441620a73/uea-careers-shoot-at-libra...	184.0 KiB
www.googletagmanager.com/gtag/js?id=G-67WCHB0WM4&cx=c&gtm=4e64k0	157.5 KiB
/f/185167/3840x2160/4fc6e8a5d7/student-ambassadors-297_da...	152.4 KiB
www.googletagmanager.com/gtag/js?id=AW-957113788&cx=c&gtm=4e64k0	145.4 KiB

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

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●User Timing marks and measures 5 user timings

●JavaScript execution time 1.2 s

●Minimizes main-thread work 1.9 s

●Avoid long main-thread tasks 9 long tasks found

●Avoid non-composited animations 2 animated elements found

●Image elements have explicit `width` and `height`

●Network Requests

●Network Round Trip Times 40 ms

●Server Backend Latencies 170 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Avoid large layout shifts 3 layout shifts found

○INP breakdown

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.

Navigation

Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Information for `div.container > div.footer_Footer__wrapper__ylQAW > div.footer_Footer__column__MWNhT > h4`

These are opportunities to improve keyboard navigation in your application.

Visible text labels that do not match the accessible name can result in a confusing experience for screen reader users. Learn more about accessible names.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Research at UEA `article.SB004_3_theme_www_v2_CtaCardWrapper__ULLmY > div.SB004_3_theme_www_v2_CtaCard__kqjol > div.SB004_3_theme_www_v2_CardContent__KSw4d > a.SB004_1_www_v2_CardAnchor__W8lqz`
Read more `article.SB004_3_theme_www_v2_CtaCardWrapper__ULLmY > div.SB004_3_theme_www_v2_CtaCard__kqjol > div.SB004_3_theme_www_v2_CardContent__KSw4d > a.SB004_1_www_v2_CardAnchor__W8lqz`
Read more `article.SB004_3_theme_www_v2_CtaCardWrapper__ULLmY > div.SB004_3_theme_www_v2_CtaCard__kqjol > div.SB004_3_theme_www_v2_CardContent__KSw4d > a.SB004_1_www_v2_CardAnchor__W8lqz`

○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.

●ARIA attributes are used as specified for the element's role

●Elements with `role="dialog"` or `role="alertdialog"` have accessible names.

●`[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.

●`[lang]` attributes have a valid value

●Document has a main landmark.

●Deprecated ARIA roles were not used

●Identical links have the same purpose.

○`[accesskey]` values are unique

○`button`, `link`, and `menuitem` elements 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

○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.

○`<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
www.uea.ac.uk/_next/static/chunks/684-7ee356973bee0e1c.js	`[ERROR]: VWO-SDK 2026-04-22T22:02:22.456Z Settings are not valid. Failed schema validation`

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
www.uea.ac.uk/_next/static/chunks/app/layout-89fd0eca38f23b7f.js
www.uea.ac.uk/_next/static/chunks/600-e15e488baeef4462.js

●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

○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.

Content Best Practices

Descriptive link text helps search engines understand your content. Learn how to make links more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Link destination	Link Text
www.uea.ac.uk/climate/piccolo	Read more
www.uea.ac.uk/health/understanding-womens-health	Read more

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 are crawlable

●robots.txt is valid

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`