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Lighthouse Desktop

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

Audit breakdown by category with detailed findings.

96

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.

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
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.

RequestCache TTLTransfer Size
/uc.js?cbid=6c2dfbd6-6680-48f5-b372-fc82b557b107&implemen...476.0 s27.0 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.

URLResource SizeEst Savings
Cyber Essentials Certified div.footer-logos > div.css-g5w0zc > a > img
/isq5xwjfoz2m/4ff97t8FvbH7U43ECuj7qg/d9d506077bde444ee2e5...37.3 KiB36.7 KiB
illustration div.standard > a.css-0 > div.css-1tn2k99 > img
/isq5xwjfoz2m/1diq8bcqWRIbLIF0BHt0ZW/29923d1e3e8d4f45a8dd...36.4 KiB31.4 KiB
People's Postcode Lottery div.footer-logos > div.css-1mtqkzt > a > img
/isq5xwjfoz2m/6VeFgSQhGcEu8ridjEHZMd/5f2a0bcd2d0d04ef46e7...18.4 KiB15.9 KiB
People talking on a stage in front of a large audience div.css-4py159 > div.gatsby-image-wrapper > picture > img
/isq5xwjfoz2m/1xugPXiVU6NFNrtiUZxyxO/90b5657aa315f678291d...183.7 KiB6.1 KiB
Coloured textile cloth div.css-1tn2k99 > div.gatsby-image-wrapper > picture > img
/isq5xwjfoz2m/55TLDdmE2BlYSSK4FmSQrb/83e986a4653f4449a2e7...13.8 KiB5.6 KiB
Photo of building with trees growing on it div.css-1tn2k99 > div.gatsby-image-wrapper > picture > img
/isq5xwjfoz2m/2MsNAF4Rl8RkkzFfnITyyP/ea055ffebe81ee61c0b0...9.9 KiB4.7 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: 233 ms
URLTime Spent
ellenmacarthurfoundation.org/233 ms
www.ellenmacarthurfoundation.org/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

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: 0.0 ms 211.3 KiB
URLTransfer SizeEst Savings
:root{--rpv-core__annotation--link-hover-background-color:#ff03;--rpv-core__annotation-popup-wrappe…212.7 KiB211.3 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 407.7 KiB
URLTransfer SizeEst Savings
www.googletagmanager.com/gtag/js?id=G-V32N675KJX&cx=c&gtm=4e64k1h2164.7 KiB67.0 KiB
www.googletagmanager.com/gtm.js?id=GTM-WFF6337165.1 KiB64.7 KiB
/cce21e158c38cba57efd2e0ef99d90ceaf62cf41-68a1aa394c0e73c...94.0 KiB60.8 KiB
www.ellenmacarthurfoundation.org/app-5a32aec6eeeac1611ed4.js84.3 KiB54.9 KiB
/0c03c08caef63195ccda6408034fb1537677576e-34da04e3517fd37...88.5 KiB49.0 KiB
www.ellenmacarthurfoundation.org/commons-58bc1985287d0751aea3.js94.3 KiB44.6 KiB
/e0973ffa53602bff9fc799c502061db3cb35ead9-5893121573ec099...49.9 KiB41.8 KiB
/6c2dfbd6-6680-48f5-b372-fc82b557b107/cc.js?renew=false&r...106.5 KiB24.9 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
●Render blocking requests
●Optimize viewport for mobile
●Max Potential First Input Delay 60 ms
●Minify CSS
●Minify JavaScript
●Avoids enormous network payloads Total size was 2,237 KiB
●User Timing marks and measures 8 user timings
●JavaScript execution time 0.4 s
●Minimizes main-thread work 0.9 s
●Avoid long main-thread tasks 2 long tasks found
●Image elements have explicit `width` and `height`
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 50 ms
●Server Backend Latencies 40 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 40 ms
●Avoid large layout shifts 1 layout shift found
○INP breakdown
○LCP request discovery
○Avoid non-composited animations
94

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
Deny div.CybotCookiebotScrollArea > div#CybotCookiebotDialogBodyButtons > div#CybotCookiebotDialogBodyButtonsWrapper > button#CybotCookiebotDialogBodyButtonDecline

These are opportunities to improve the legibility of your content.

Best practices

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Publication The EU Circular Economy Act: a critical opportunity Key policy lev… div#:R9lael99: > div.glider-track > div.css-4eju0c > div.standard
Policy div.standard > ul.css-16b6kpa > li.css-1oqi83f > a
Publication Paper as one part of the solution to flexible packaging pollution … div#:R9lael99: > div.glider-track > div.css-4eju0c > div.standard
Plastics div.standard > ul.css-16b6kpa > li.css-wqb8sl > a
Design div.standard > ul.css-16b6kpa > li.css-1wl1ta1 > a
Publication Leading the charge Turning risk into reward with a circular econom… div#:R9lael99: > div.glider-track > div.css-4eju0c > div.standard
Critical Minerals div.standard > ul.css-16b6kpa > li.css-qu72pj > a
Publication Keep it in use: Retain resource value and unlock economic opportuni… div#:R9lael99: > div.glider-track > div.css-4eju0c > div.standard
Policy div.standard > ul.css-16b6kpa > li.css-1oqi83f > a
Publication 2030 Plastics Agenda for Business A business-backed blueprint to m… div#:R9lael99: > div.glider-track > div.css-4eju0c > div.standard
Plastics div.standard > ul.css-16b6kpa > li.css-wqb8sl > a
Publication How not to fail: Avoiding 10 common pitfalls when scaling circular … div#:R9lael99: > div.glider-track > div.css-4eju0c > div.standard
Business div.standard > ul.css-16b6kpa > li.css-qu72pj > a
Publication Scaling action for nature: How the circular economy can help delive… div#:R9lael99: > div.glider-track > div.css-4eju0c > div.standard
Biodiversity div.standard > ul.css-16b6kpa > li.css-qu72pj > a
Policy div.standard > ul.css-16b6kpa > li.css-1oqi83f > a
Collection | Case study Commercial collaboration: A powerful driver for the cir… div#:R9lael99: > div.glider-track > div.css-4eju0c > div.standard
Business div.standard > ul.css-16b6kpa > li.css-qu72pj > a
News Ellen MacArthur Foundation INC-5.2 reflections We are deeply disappointed… div#:R9lael99: > div.glider-track > div.css-4eju0c > div.standard
Plastics div.standard > ul.css-16b6kpa > li.css-wqb8sl > a
News The Foundation urges governments to turn the tide on plastic pollution As… div#:R9lael99: > div.glider-track > div.css-4eju0c > div.standard
Plastics div.standard > ul.css-16b6kpa > li.css-wqb8sl > a
News Creating a circular economy for critical minerals At London Climate Actio… div#:R9lael99: > div.glider-track > div.css-4eju0c > div.standard
Network div.standard > ul.css-16b6kpa > li.css-qu72pj > a
Video Living within planetary boundaries: the circular economy This film explo… div#:R9lael99: > div.glider-track > div.css-4eju0c > div.standard
Climate div.standard > ul.css-16b6kpa > li.css-qu72pj > a
Video The Story of the Big Food Redesign Watch the Foundation’s latest video, … div#:R9lael99: > div.glider-track > div.css-4eju0c > div.standard
Food div.standard > ul.css-16b6kpa > li.css-1yr0smm > a
Food and the circular economy This topic area shows that we can create a food … div#:R9laml99: > div.glider-track > div.css-4eju0c > div.standard
Food div.standard > ul.css-16b6kpa > li.css-1yr0smm > a
Biodiversity and the circular economy This topic area examines how the circula… div#:R9laml99: > div.glider-track > div.css-4eju0c > div.standard
Biodiversity div.standard > ul.css-16b6kpa > li.css-qu72pj > a
Built environment and the circular economy In a circular economy our built env… div#:R9laml99: > div.glider-track > div.css-4eju0c > div.standard
Built environment div.standard > ul.css-16b6kpa > li.css-1duvcit > a
Business and the circular economy A circular economy transformation will empow… div#:R9laml99: > div.glider-track > div.css-4eju0c > div.standard
Business div.standard > ul.css-16b6kpa > li.css-qu72pj > a
Cities and the circular economy This topic area looks at the role cities play … div#:R9laml99: > div.glider-track > div.css-4eju0c > div.standard
Cities div.standard > ul.css-16b6kpa > li.css-1kmcavc > a
Circular design and the circular economy Design is a force for change. From in… div#:R9laml99: > div.glider-track > div.css-4eju0c > div.standard
Design div.standard > ul.css-16b6kpa > li.css-1wl1ta1 > a
Climate and the circular economy This topic area looks at how fixing the econo… div#:R9laml99: > div.glider-track > div.css-4eju0c > div.standard
Climate div.standard > ul.css-16b6kpa > li.css-qu72pj > a
Education and learning towards a circular economy We support circular economy … div#:R9laml99: > div.glider-track > div.css-4eju0c > div.standard
Education div.standard > ul.css-16b6kpa > li.css-qu72pj > a
Finance and the circular economy This topic area looks at the role of the fina… div#:R9laml99: > div.glider-track > div.css-4eju0c > div.standard
Finance div.standard > ul.css-16b6kpa > li.css-4om5h6 > a

These items highlight common accessibility best practices.

○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.
●`button`, `link`, and `menuitem` elements have accessible names
●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
●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
●`[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.
○`[accesskey]` values are unique
○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.
○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.
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 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`

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