C — https://cardiff.ac.uk | BeaverCheck Audit

Site Health

Score: 71 / 100

Based on 8 categories, 0 sections

Decent speed, but optimizing further could improve engagement.

Several missing protections leave your users and data exposed.

Several issues make your site difficult for assistive technology users.

Missing signals may be hurting your search visibility.

Good server performance with room for optimization.

Mostly compliant — a few items need attention.

Missing metadata means poor previews on social media and search.

Lean and efficient — low environmental impact per visit.

How is this calculated?

The overall score is a weighted average of individual category scores. Categories with more impact on user experience and security carry more weight.

Performance 25%Security 25%Accessibility 15%SEO 10%Infrastructure 10%Compliance 8%Content 5%Sustainability 2%

Weights reflect general web best practices. Individual needs may differ.

How the composite score is calculated

How you compare

AngularJS · 396 peers

You 71

Avg 73

At average

0 50 100

Better than 23% of AngularJS sites See full AngularJS benchmark →

Apple · 1212 peers

You 71

Avg 72

At average

0 50 100

Better than 23% of Apple sites See full Apple benchmark →

Top Priorities (5)

Content-Security-Policy header is missing

Security gaps expose your site and users to attacks, eroding trust.

Security › Security Headers

HSTS header is missing

Security gaps expose your site and users to attacks, eroding trust.

Security › Security Headers

No Content-Security-Policy header found

Security gaps expose your site and users to attacks, eroding trust.

Security › Content Security Policy

43 third-party resources (100% of weight)

Performance issues directly impact user engagement and conversion rates.

Performance › Page Weight Inventory

Cross-Origin-Embedder-Policy header is missing

Security gaps expose your site and users to attacks, eroding trust.

Security › Security Headers

View fix priority matrix

Fix Priority Matrix

5 findings

Impact

Quick Wins

High impact, low effort — start here.

Strategic

High impact, requires investment.

Easy Improvements

Small gains, minimal effort.

Nothing in this quadrant — good news.

Deprioritize

Low impact, high effort — do last.

Nothing in this quadrant — good news.

← Low effort High effort →

Embed this badge

Markdown

[![BeaverCheck](https://beavercheck.com/badge?url=https%3A%2F%2Fcardiff.ac.uk)](https://beavercheck.com/results/de4b4420-2287-4085-81cd-4ed3ae047fef)

HTML

<a href="https://beavercheck.com/results/de4b4420-2287-4085-81cd-4ed3ae047fef"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fcardiff.ac.uk" alt="BeaverCheck Score"></a>

Image URL

https://beavercheck.com/badge?url=https%3A%2F%2Fcardiff.ac.uk

This badge auto-updates with your latest scan result.

What fixing these means

Your site performs reasonably well, but a few targeted fixes could meaningfully improve results. Your LCP of 13.0s exceeds Google's 2.5s 'Good' threshold and the 1 performance issue below directly contributes to it. Addressing the critical issues below would have the most immediate impact on your user trust.

4 security gaps detected — browsers may warn visitors about your site.

Your LCP is 13.0s — fixing the 1 performance critical could bring it under Google's 2.5s 'Good' threshold.

Conversion Barriers

2 critical 6 warning

8 barrier(s) likely increasing bounce by ~30%.

Speed (2)

Page takes 13.0s to load

+12% bounce

Users abandon at ~3s — you're 10.5s over the 2.5s threshold

Fix: Optimize render-blocking resources, preload the hero image, and compress images

Page feels frozen for 1.1s

+5% bounce

Clicks on the primary CTA are ignored while JavaScript runs

Fix: Break up long tasks; defer non-critical JavaScript to post-hydration

Trust (2)

No HSTS header

+1% bounce

Returning visitors are briefly exposed to downgrade attacks on first request

Fix: Set Strict-Transport-Security: max-age=31536000; includeSubDomains

No Content-Security-Policy header

+1% bounce

Higher XSS blast radius — one compromised script can exfiltrate the checkout form

Fix: Ship a reporting-only CSP first, then enforce once violations are clean

Content (3)

No Open Graph tags

+2% bounce

Links shared on LinkedIn / Slack / Facebook show bare URLs — referral clicks drop

Fix: Add og:title, og:description, og:image, og:url to the page head

No structured data

+2% bounce

No rich-result eligibility in Google — lower SERP CTR vs competitors with stars and prices

Fix: Add JSON-LD for your page type (Product, Article, FAQPage, LocalBusiness, …)

Thin content

+3% bounce

Under 300 words — visitors bounce looking for substance, search engines rank competitors first

Fix: Add a substantive FAQ, product detail, or case-study section

Navigation (1)

No skip-to-content link

+1% bounce

Keyboard and screen-reader users must tab through the entire header on every page

Fix: Add a visible-on-focus <a href="#main">Skip to content</a> as the first focusable element

Preliminary CRO audit — each barrier links to the tab with detailed analysis.

Return on Investment

£300 investment → £1,238/month returns + GBP 50,000 risk avoided

Payback period: < 1 month First-year ROI: +4853%

Investment

£300

4h · 5 findings

Monthly returns

£1,238 /mo

~£14,859 / year

Conversions recovered £1,238
Bandwidth savings £0.36

Regulatory risk avoided

GBP 50,000

if kept compliant

Equality Act 2010 GBP 50,000

Payback period

0 12mo 24mo

£150 — in quick wins — start here for the fastest payback

Figures combine localized regulatory fine ceilings, search/conversion value priced against local CPC, and bandwidth waste estimates. Results depend on implementation quality and audience composition. Not legal or financial advice.

Full methodology & sources

Estimated Remediation Cost

£300

4.0 developer hours at £75/hr

Based on United Kingdom rates (£75/hr)

Quick wins

£150 4 fixes in ~120 minutes

Start here for the best return on investment

Cost by category

Cost by effort level

Adjust assumptions

Custom rate

£ /hr

Rates reflect fully-loaded developer cost including overhead

How developer rates are sourced

What Inaction Is Costing You

£4,167 / month at risk

~£50,004 / year if left unfixed

Compliance Risk

£50,000

Equality Act 2010

No <nav> landmark found
Equality Act 2010: GBP 500 – GBP 50,000
Skip navigation link is missing (WCAG 2.4.1)
Equality Act 2010: GBP 500 – GBP 50,000

Bandwidth Waste

£0.36 /mo

5708.3 MB/mo × 0.063 GBP/GB

Optimize transfer: save ~571 KB per page load
Saves £0.36/mo

Compliance figures represent the statutory maximum fine for the most severe triggered category, capped per regulation — not the sum of per-finding penalties. Based on published regulatory fine ranges. This is not legal advice.

Compliance methodology · SEO assumptions · Bandwidth model

Your performance is already good — improvements may show diminishing returns

Monthly visitors

Unique monthly visitors from your analytics

Conversion rate (%)

Purchases, signups, or key actions

Avg. order value

Optional — for revenue estimation

additional conversions/month

more engaged visitors from reduced bounce

potential monthly revenue

Current bounce (est.)

After fixes (est.)

Estimated bounce reduction

Fix 3 critical issues to capture this value

How this is calculated

Based on Google/Deloitte research ("Milliseconds Make Millions") showing a ~7% bounce rate increase per additional second of LCP above the 2.5s "Good" threshold.

Your site's LCP: → estimated after fixes.

These are estimates based on industry research — actual results vary

Bounce-rate model & assumptions

Your data stays in your browser — nothing is sent to our servers

Was this report useful?

Thanks for your feedback!

We'll use a cached audit if available, or offer to scan.

Checking for existing audit...

Press ? for shortcuts

Lighthouse Scores

Industry-standard audits powered by Google Lighthouse.

Performance

Accessibility

100

Best Practices

SEO

Core Web Vitals

Key metrics that affect user experience.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

5.67 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

13.04 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

1.10 s

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.006

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

6.67 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

13.13 s

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

Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.

Learn more ▾

Most users today run browsers that natively support ES6+, async/await, optional chaining, and the rest of modern JavaScript. Transpiling to ES5 'just in case' adds 20-40% to your bundle for no benefit. Configure your build to target a modern browserslist, or ship a differential bundle pair (modern + legacy) with the module/nomodule pattern.

Source: Google web.dev / Lighthouse

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
widget.geckoengage.com/embed/	0.0 ms	286.4 KiB
widget.geckoengage.com/embed/static/media/fa-light-300.d3271a56.woff2	0.0 ms	180.5 KiB
widget.geckoengage.com/embed/main.css	0.0 ms	178.5 KiB
widget.geckoengage.com/embed/static/media/fa-solid-900.54dfc8f5.woff2	0.0 ms	134.5 KiB
/RMCDRyHS-fPPUWNwhDDYEw/4e6fd4c0-c303-48c7-65c7-fa5387784...	172800.0 s	156.4 KiB
/RMCDRyHS-fPPUWNwhDDYEw/7ba709c7-7502-4a0d-6898-7df9adf03...	172800.0 s	40.7 KiB
/RMCDRyHS-fPPUWNwhDDYEw/a3769b3f-a7ca-47bc-76ba-3276adba0...	172800.0 s	20.9 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.

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:80.68 source:map[column:34875 line:0 type:source-location url:https://d3q5dbq2rziek.cloudfront.net/4.1.2/js/main.js urlProvider:network]]]

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
div.dxp-quote-block > div.translate-screen > div.relative > img.w-full `div.dxp-quote-block > div.translate-screen > div.relative > img.w-full`	/RMCDRyHS-fPPUWNwhDDYEw/4e6fd4c0-c303-48c7-65c7-fa5387784...	156.0 KiB	148.8 KiB
div.translate-screen > div.relative > div.md:col-start-2 > img.w-full `div.translate-screen > div.relative > div.md:col-start-2 > img.w-full`	/RMCDRyHS-fPPUWNwhDDYEw/7ba709c7-7502-4a0d-6898-7df9adf03...	40.3 KiB	28.7 KiB
Engaging for change `ul.carousel-inner > li.carousel-item > figure > img`	/__data/assets/image/0007/2840398/169-crop-of-Grange-Pavi...	33.7 KiB	24.7 KiB
Learning together `ul.carousel-inner > li.carousel-item > figure > img`	/__data/assets/image/0006/2840370/CU_Research_2.jpg?w=600...	30.9 KiB	22.6 KiB
div.translate-screen > div.relative > div.md:col-start-1 > img.w-full `div.translate-screen > div.relative > div.md:col-start-1 > img.w-full`	/__data/assets/image/0005/2971166/BRW-lead-header.jpg?aut...	23.5 KiB	16.8 KiB
div.translate-screen > div.relative > div.md:col-start-2 > img.w-full `div.translate-screen > div.relative > div.md:col-start-2 > img.w-full`	/RMCDRyHS-fPPUWNwhDDYEw/a3769b3f-a7ca-47bc-76ba-3276adba0...	20.5 KiB	14.6 KiB
Research with impact `ul.carousel-inner > li.carousel-item > figure > img`	/__data/assets/image/0010/2853496/_CSP0105_crop.jpg?w=600...	17.7 KiB	13.0 KiB
div.col-md-6 > section.teaser > figure.teaser-image > img.lazy `div.col-md-6 > section.teaser > figure.teaser-image > img.lazy`	/__data/assets/image/0006/2882301/Cardiff-Graduation-2024...	19.6 KiB	10.3 KiB
Group shot `div.col-md-3 > section.teaser > figure.teaser-image > img.lazy`	/__data/assets/image/0009/3040965/SIM-signing.JPG?w=570&h...	19.2 KiB	10.1 KiB
div.col-md-6 > section.teaser > figure.teaser-image > img.lazy `div.col-md-6 > section.teaser > figure.teaser-image > img.lazy`	/__data/assets/image/0005/2983181/getty-images-7mKwCbDgxR...	8.9 KiB	4.7 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-10-IMG

nodeLabel: Student streaming University webinars on a laptop

path: 9,HTML,2,BODY,16,MAIN,3,DIV,1,SECTION,0,DIV,0,IMG

selector: div.line-height-0 > section.content-group > div.image-wrapper > img.hero-image

snippet: <img data-srcset="https://cardiff.imgix.net/__data/assets/image/0016/3040441/Screenshot-2026…" data-src="https://cardiff.imgix.net/__data/assets/image/0016/3040441/Screenshot-2026…" src="https://cardiff.imgix.net/__data/assets/image/0016/3040441/Screenshot-2026…" sizes="100vw" class="hero-image" alt="Student streaming University webinars on a laptop" srcset="https://cardiff.imgix.net/__data/assets/image/0016/3040441/Screenshot-2026…">

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
d1pmxwirk3qc7v.cloudfront.net/dxp-includes/0b4962b9/dxp.css	8.3 KiB	804 ms
d3q5dbq2rziek.cloudfront.net/4.1.2/css/main.css	65.2 KiB	1.2 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.

URL	Est Savings
widget.geckoengage.com/embed/static/media/fa-solid-900.54dfc8f5.woff2	15 ms
widget.geckoengage.com/embed/static/media/fa-light-300.d3271a56.woff2	15 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: 754 ms

URL	Time Spent
cardiff.ac.uk/	754 ms
www.cardiff.ac.uk/	0.0 ms

Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Diagnostics

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 610 ms 236.7 KiB

URL	Transfer Size	Est Savings
widget.geckoengage.com/embed/main.css	178.0 KiB	175.8 KiB
d3q5dbq2rziek.cloudfront.net/4.1.2/css/main.css	64.7 KiB	60.9 KiB

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

Why this matters

Multi-megabyte JavaScript bundles delay every interactive feature on the page.

Learn more ▾

This is the Lighthouse audit fired when too much JS is shipped relative to what executes. The fix isn't a config flag — it requires bundle analysis (webpack-bundle-analyzer, rollup-plugin-visualizer), splitting routes into chunks, lazy-loading off-screen components, and removing unused dependencies. Fundamentally different from minification: minifying reduces byte count, this reduces what's downloaded at all.

Source: Google web.dev / Lighthouse

Estimated savings: 1.1 s 328.2 KiB

URL	Transfer Size	Est Savings
widget.geckoengage.com/embed	285.9 KiB	153.7 KiB
www.googletagmanager.com/gtm.js?id=GTM-WFW24X	192.1 KiB	77.9 KiB
www.googletagmanager.com/gtag/js?id=DC-14284772&cx=c&gtm=4e64k0	129.3 KiB	61.6 KiB
d3q5dbq2rziek.cloudfront.net/4.1.2/js/vendor.js	50.3 KiB	34.9 KiB

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Total CPU Time	Script Evaluation	Script Parse
www.googletagmanager.com/gtm.js?id=GTM-WFW24X	753 ms	561 ms	118 ms
www.cardiff.ac.uk/	742 ms	38 ms	4.2 ms
d3q5dbq2rziek.cloudfront.net/4.1.2/js/main.js	554 ms	194 ms	15 ms
Unattributable	415 ms	22 ms	0.0 ms
www.googletagmanager.com/gtag/js?id=DC-14284772&cx=c&gtm=4e64k0	318 ms	257 ms	60 ms
widget.geckoengage.com/embed	211 ms	135 ms	45 ms
d3q5dbq2rziek.cloudfront.net/4.1.2/js/6671.js	87 ms	25 ms	1.1 ms
d3q5dbq2rziek.cloudfront.net/4.1.2/css/main.css	59 ms	0.0 ms	0.0 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Category	Time Spent
Script Evaluation	1.3 s
Style & Layout	789 ms
Other	661 ms
Script Parsing & Compilation	280 ms
Parse HTML & CSS	162 ms
Rendering	101 ms
Garbage Collection	20 ms

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL
div.col-md-6 > section.teaser > figure.teaser-image > img.lazy `div.col-md-6 > section.teaser > figure.teaser-image > img.lazy`	/__data/assets/image/0005/2983181/getty-images-7mKwCbDgxR...
div.col-md-6 > section.teaser > figure.teaser-image > img.lazy `div.col-md-6 > section.teaser > figure.teaser-image > img.lazy`	/__data/assets/image/0006/2882301/Cardiff-Graduation-2024...
Group shot `div.col-md-3 > section.teaser > figure.teaser-image > img.lazy`	/__data/assets/image/0009/3040965/SIM-signing.JPG?w=570&h...
Little girl sat on the floor playing with barbie dolls `div.col-md-3 > section.teaser > figure.teaser-image > img.lazy`	/__data/assets/image/0008/1279637/DefaultLogo.png?w=570&h...
Professor Laura McAllister `div.col-md-3 > section.teaser > figure.teaser-image > img.lazy`	/__data/assets/image/0008/1279637/DefaultLogo.png?w=570&h...
A sewing machine in a workshop in Kenya `div.col-md-3 > section.teaser > figure.teaser-image > img.lazy`	/__data/assets/image/0008/1279637/DefaultLogo.png?w=570&h...
Learning together `ul.carousel-inner > li.carousel-item > figure > img`	/__data/assets/image/0006/2840370/CU_Research_2.jpg?w=600...
Research with impact `ul.carousel-inner > li.carousel-item > figure > img`	/__data/assets/image/0010/2853496/_CSP0105_crop.jpg?w=600...
Engaging for change `ul.carousel-inner > li.carousel-item > figure > img`	/__data/assets/image/0007/2840398/169-crop-of-Grange-Pavi...
QAA checks how UK universities, colleges and other providers maintain the stand… `ul.list > li > a > img.footer-global-logos-image`	data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
Russell Group `ul.list > li > a > img.footer-global-logos-image`	data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7

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

●Layout shift culprits

●Optimize DOM size

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●Avoids enormous network payloads Total size was 1,858 KiB

●Avoid long main-thread tasks 10 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 310 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 80 ms

●Avoid large layout shifts 15 layout shifts found

○INP breakdown

○User Timing marks and measures

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.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Your next steps at Cardiff `div.md:h-full > ul.p-0 > li.inline-flex > a.inline-flex`

These are opportunities to improve the legibility of your content.

Names and labels

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
nav.nav-global > div.navbar > div.nav-global-logo > a `nav.nav-global > div.navbar > div.nav-global-logo > a`

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.

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
Cymraeg `nav.nav-global > div.navbar > div.ml-auto > a.ga-event`
Visitor information `div.col-md-2 > ul.list > li > a.ga-event`
Contact us `div.col-md-2 > ul.list > li > a.ga-event`
Accessibility statement `div.col-md-7 > ul.list > li > a.ga-event`
Privacy `div.col-md-7 > ul.list > li > a.ga-event`
Cookies `div.col-md-7 > ul.list > li > a.ga-event`

○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

●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

●Document has a `<title>` element

●`<html>` element has a `[lang]` attribute

●`<html>` element has a valid value for its `[lang]` attribute

●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

●Skip links are focusable.

●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

○Links are distinguishable without relying on color.

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

○`<object>` elements have alternate text

○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.

100

Best Practices

●Uses HTTPS

●Avoids deprecated APIs

●Avoids third-party cookies

●Allows users to paste into input fields

●Avoids requesting the geolocation permission on page load

●Avoids requesting the notification permission on page load

●Displays images with correct aspect ratio

●Serves images with appropriate resolution

●Page has the HTML doctype

●Properly defines charset

●No browser errors logged to the console

●No issues in the `Issues` panel in Chrome Devtools

●Ensure CSP is effective against XSS attacks

●Use a strong HSTS policy

●Ensure proper origin isolation with COOP

●Mitigate 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

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
discover.cardiff.ac.uk/the-big-reunion-weekend/	Learn 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

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

○robots.txt is valid

○Document has a valid `rel=canonical`

Lighthouse Scores

Industry-standard audits powered by Google Lighthouse. — Desktop

Performance

Accessibility

100

Best Practices

SEO

Core Web Vitals

Key metrics that affect user experience. — Desktop

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

940 ms

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

1.54 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

36 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.002

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

993 ms

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

1.83 s

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.

Why this matters

Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.

Learn more ▾

Source: Google web.dev / Lighthouse

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.

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:55.855 source:map[type:text value:[unattributed]]] map[reflowTime:0.094 source:map[column:150146 line:1 type:source-location url:https://d3q5dbq2rziek.cloudfront.net/4.1.2/js/vendor.js urlProvider:network]]]

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: Student streaming University webinars on a laptop

path: 9,HTML,2,BODY,16,MAIN,3,DIV,1,SECTION,0,DIV,0,IMG

selector: div.line-height-0 > section.content-group > div.image-wrapper > img.hero-image

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.

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
d1pmxwirk3qc7v.cloudfront.net/dxp-includes/0b4962b9/dxp.css	8.3 KiB	255 ms
d3q5dbq2rziek.cloudfront.net/4.1.2/css/main.css	65.2 KiB	284 ms

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
widget.geckoengage.com/embed/	0.0 ms	286.4 KiB
widget.geckoengage.com/embed/static/media/fa-light-300.d3271a56.woff2	0.0 ms	180.5 KiB
widget.geckoengage.com/embed/main.css	0.0 ms	178.5 KiB
widget.geckoengage.com/embed/static/media/fa-solid-900.54dfc8f5.woff2	0.0 ms	134.5 KiB
/RMCDRyHS-fPPUWNwhDDYEw/4e6fd4c0-c303-48c7-65c7-fa5387784...	172800.0 s	156.4 KiB
/RMCDRyHS-fPPUWNwhDDYEw/7ba709c7-7502-4a0d-6898-7df9adf03...	172800.0 s	40.7 KiB
/RMCDRyHS-fPPUWNwhDDYEw/a3769b3f-a7ca-47bc-76ba-3276adba0...	172800.0 s	20.9 KiB

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
widget.geckoengage.com/embed/static/media/fa-light-300.d3271a56.woff2	15 ms
widget.geckoengage.com/embed/static/media/fa-solid-900.54dfc8f5.woff2	10 ms

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
div.dxp-quote-block > div.translate-screen > div.relative > img.w-full `div.dxp-quote-block > div.translate-screen > div.relative > img.w-full`	/RMCDRyHS-fPPUWNwhDDYEw/4e6fd4c0-c303-48c7-65c7-fa5387784...	156.0 KiB	54.0 KiB
div.translate-screen > div.relative > div.md:col-start-2 > img.w-full `div.translate-screen > div.relative > div.md:col-start-2 > img.w-full`	/RMCDRyHS-fPPUWNwhDDYEw/7ba709c7-7502-4a0d-6898-7df9adf03...	40.3 KiB	9.1 KiB

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

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: 40 ms 235.6 KiB

URL	Transfer Size	Est Savings
widget.geckoengage.com/embed/main.css	178.0 KiB	175.8 KiB
d3q5dbq2rziek.cloudfront.net/4.1.2/css/main.css	64.7 KiB	59.8 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

Multi-megabyte JavaScript bundles delay every interactive feature on the page.

Learn more ▾

Source: Google web.dev / Lighthouse

Estimated savings: 110 ms 328.2 KiB

URL	Transfer Size	Est Savings
widget.geckoengage.com/embed	285.9 KiB	153.7 KiB
www.googletagmanager.com/gtm.js?id=GTM-WFW24X	192.1 KiB	77.9 KiB
www.googletagmanager.com/gtag/js?id=DC-14284772&cx=c&gtm=4e64k0	129.3 KiB	61.6 KiB
d3q5dbq2rziek.cloudfront.net/4.1.2/js/vendor.js	50.3 KiB	34.9 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
Learning together `ul.carousel-inner > li.carousel-item > figure > img`	/__data/assets/image/0006/2840370/CU_Research_2.jpg?w=531...
div.col-md-6 > section.teaser > figure.teaser-image > img.lazy `div.col-md-6 > section.teaser > figure.teaser-image > img.lazy`	/__data/assets/image/0005/2983181/getty-images-7mKwCbDgxR...
div.col-md-6 > section.teaser > figure.teaser-image > img.lazy `div.col-md-6 > section.teaser > figure.teaser-image > img.lazy`	/__data/assets/image/0006/2882301/Cardiff-Graduation-2024...
Group shot `div.col-md-3 > section.teaser > figure.teaser-image > img.lazy`	/__data/assets/image/0009/3040965/SIM-signing.JPG?w=570&h...
Little girl sat on the floor playing with barbie dolls `div.col-md-3 > section.teaser > figure.teaser-image > img.lazy`	/__data/assets/image/0008/1279637/DefaultLogo.png?w=570&h...
Professor Laura McAllister `div.col-md-3 > section.teaser > figure.teaser-image > img.lazy`	/__data/assets/image/0008/1279637/DefaultLogo.png?w=570&h...
A sewing machine in a workshop in Kenya `div.col-md-3 > section.teaser > figure.teaser-image > img.lazy`	/__data/assets/image/0008/1279637/DefaultLogo.png?w=570&h...
QAA checks how UK universities, colleges and other providers maintain the stand… `ul.list > li > a > img.footer-global-logos-image`	data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
Russell Group `ul.list > li > a > img.footer-global-logos-image`	data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7

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: 205 ms

URL	Time Spent
cardiff.ac.uk/	205 ms
www.cardiff.ac.uk/	0.0 ms

●Time to Interactive 1.8 s

●Max Potential First Input Delay 90 ms

●Layout shift culprits

●Optimize DOM size

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●Avoids enormous network payloads Total size was 1,870 KiB

●JavaScript execution time 0.4 s

●Minimizes main-thread work 0.9 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 300 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 80 ms

●Avoid large layout shifts 13 layout shifts found

○INP breakdown

○User Timing marks and measures

Accessibility

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Your next steps at Cardiff `div.md:h-full > ul.p-0 > li.inline-flex > a.inline-flex`

These are opportunities to improve the legibility of your content.

Names and labels

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
nav.nav-global > div.navbar > div.nav-global-logo > a `nav.nav-global > div.navbar > div.nav-global-logo > a`

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.

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
Teaching excellence `div.navbar > ul.nav > li.nav-item > a.nav-link`
Work with us `div.navbar > ul.nav > li.nav-item > a.nav-link`
Global `div.navbar > ul.nav > li.nav-item > a.nav-link`
Cymraeg `nav.nav-global > div.navbar > div.ml-auto > a.ga-event`
Browse by subject area `div.d-flex > ul.search-related > li > a.ga-event`
Browse by A-Z `div.d-flex > ul.search-related > li > a.ga-event`
Browse by School `div.d-flex > ul.search-related > li > a.ga-event`
Visitor information `div.col-md-2 > ul.list > li > a.ga-event`
Contact us `div.col-md-2 > ul.list > li > a.ga-event`
Accessibility statement `div.col-md-7 > ul.list > li > a.ga-event`
Privacy `div.col-md-7 > ul.list > li > a.ga-event`
Cookies `div.col-md-7 > ul.list > li > a.ga-event`

○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

●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

●Document has a `<title>` element

●`<html>` element has a `[lang]` attribute

●`<html>` element has a valid value for its `[lang]` attribute

●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

●Skip links are focusable.

●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

○Links are distinguishable without relying on color.

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

○`<object>` elements have alternate text

○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.

100

Best Practices

●Uses HTTPS

●Avoids deprecated APIs

●Avoids third-party cookies

●Allows users to paste into input fields

●Avoids requesting the geolocation permission on page load

●Avoids requesting the notification permission on page load

●Displays images with correct aspect ratio

●Serves images with appropriate resolution

●Page has the HTML doctype

●Properly defines charset

●No browser errors logged to the console

●No issues in the `Issues` panel in Chrome Devtools

●Ensure CSP is effective against XSS attacks

●Use a strong HSTS policy

●Ensure proper origin isolation with COOP

●Mitigate 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

SEO

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
discover.cardiff.ac.uk/the-big-reunion-weekend/	Learn 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

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

○robots.txt is valid

○Document has a valid `rel=canonical`

Results for https://cardiff.ac.uk

Site Health

How you compare

Top Priorities (5)

Fix Priority Matrix

Quick Wins

Strategic

Easy Improvements

Deprioritize

What fixing these means

Conversion Barriers

Speed (2)

Trust (2)

Content (3)

Navigation (1)

Return on Investment

Investment

Monthly returns

Regulatory risk avoided

Payback period

Estimated Remediation Cost

Cost by category

Cost by effort level

What Inaction Is Costing You

Compliance Risk

Bandwidth Waste

Lighthouse Scores

Core Web Vitals

Detailed Report

Performance

Insights

Diagnostics

Accessibility

Contrast

Names and labels

Best Practices

SEO

Content Best Practices

Lighthouse Scores

Core Web Vitals

Detailed Report

Performance

Insights

Diagnostics

Accessibility

Contrast

Names and labels

Best Practices

SEO

Content Best Practices

Keyboard Shortcuts