Lighthouse Mobile
· 0 checks — Mobile Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.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.
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
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.
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.
Performance issues directly impact user engagement and conversion rates.
Layout shifts occur when elements move absent any user interaction. Investigate the causes of layout shifts, such as elements being added, removed, or their fonts changing as the page loads.
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.
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.
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
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.
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size
Performance issues directly impact user engagement and conversion rates.
| URL | Resource Size | Est Savings | |
|---|---|---|---|
A young girl in a pink dress stands in a classroom in Umshouka Village, Sudan. div.view-media_banner > div.field > div > img.b-lazy | /sites/default/files/styles/media_banner/public/UNI822513... | 50.1 KiB | 39.9 KiB |
section.region > div.logo-center > a.site-logo > img.logo section.region > div.logo-center > a.site-logo > img.logo | /sites/default/files/styles/logo/public/English_9.png.web... | 25.4 KiB | 22.7 KiB |
div.card > div.card-hero-link > div.field > img div.card > div.card-hero-link > div.field > img | /sites/default/files/styles/large/public/UNI820856.webp?i... | 24.9 KiB | 4.7 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.
Performance issues directly impact user engagement and conversion rates.
| URL | Time Spent |
|---|---|
| unicef.org/ | 1.0 s |
| www.unicef.org/ | 0.0 ms |
These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS
Performance issues directly impact user engagement and conversion rates.
| Element | Layout shift score |
|---|---|
UNICEF, for every child
Press release
14 April 2026
At least 245 child casualti… section.region > div#block-unicef-base-mainpagecontent > article.cview-full > div.main-content-cntr | 0.195 |
Emergency response in Sudan div.field > div.media-banner-container > div.mb-text-cta-container > h2.mb-title | 0.001 |
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.
Performance issues directly impact user engagement and conversion rates.
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.
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.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.unicef.org/themes/custom/unicef_base/assets/css/styles.css?8e22c1 | 34.0 KiB | 31.3 KiB |
| /sites/default/files/color/9f4b6ac022643036e0835dc2f9baff... | 11.6 KiB | 10.9 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.
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 reduce Javascript execution time.
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
Performance issues directly impact user engagement and conversion rates.
| Category | Time Spent |
|---|---|
| Script Evaluation | 3.6 s |
| Style & Layout | 1.1 s |
| Other | 980 ms |
| Script Parsing & Compilation | 670 ms |
| Rendering | 241 ms |
| Parse HTML & CSS | 118 ms |
| Garbage Collection | 117 ms |
Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| ws.sharethis.com/button/buttons.js | 26.6 KiB | 8.6 KiB |
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions
Performance issues directly impact user engagement and conversion rates.
| URL | |
|---|---|
A young girl in a pink dress stands in a classroom in Umshouka Village, Sudan. div.view-media_banner > div.field > div > img.b-lazy | /sites/default/files/styles/media_banner/public/UNI822513... |
section.region > div.logo-center > a.site-logo > img.logo section.region > div.logo-center > a.site-logo > img.logo | /sites/default/files/styles/logo/public/English_9.png.web... |
Two girls in colourful scarves smile while hanging from a play structure. div.view-banner > div.field > div.blazy-container > img.b-lazy | /sites/default/files/styles/lazy_load/public/UNI881096.we... |
More information about the performance of your application. These numbers don't directly affect the Performance score.
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.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Discover UNICEF's work for every child, everywhere. div.text--block-content > div.comp-txt > div.field > h4.text-align-center |
These are opportunities to improve keyboard navigation in your application.
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.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Contact us div.social-follow > ul.footer-copyright-links > li > a.footer-copyright |
Legal div.social-follow > ul.footer-copyright-links > li > a.footer-copyright |
Report fraud, abuse, wrongdoing div.social-follow > ul.footer-copyright-links > li > a.footer-copyright |
Accessibility div.social-follow > ul.footer-copyright-links > li > a.footer-copyright |
Cookie settings div.footer-right > section.region > div#block-unicef-cookie-settings-block > button#klaro-cookie-settings |
These items highlight common accessibility best practices.
Best Practices
General
Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.
Performance issues directly impact user engagement and conversion rates.
| Deprecation / Warning | Source |
|---|---|
| SharedStorage | |
| StorageType.persistent is deprecated. Please use standardized navigator.storage instead. | |
| Fledge | |
| 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
Performance issues directly impact user engagement and conversion rates.
| Source | Description |
|---|---|
Refused to apply style from 'https://www.unicef.org/sites/default/files/css/css_6mvF3L8BfvPL-0ivrZ2gHak8zdgo83EQkWmxrNTxYlM.css?delta=4&language=en&theme=unicef_base&include=eJx1kNFSxCAMRX8Ilk_qBEjbzAbCkLC6fr21jq6s-sIczs1DciOaYV_wtYliXlbi46thw4od2EWGt3tggUx1c1eGLuF8f7KXG_ZOGV2DDluHtmvIfTTgy8NcRm0jMumO2SlCT_sCjRYYJklKYzQM_3inO3S0nTR8k1OmdA2QEqpSZPSncHpXwxIiKLpRKeG6fHDIkkbBapM87mbp6CPL5k0aJZ3yAlRngZnAR6hHP38E62CetShQmlSVjL8HT3u0Y0_WxCvUeauODIbZJ6l2XOSPRmAaUEkE7M-u5sDy0_IZSnjgl11TCzfCF_VN2mju5E9zKZIH4zv599xv' because its MIME type ('text/html') is not a supported stylesheet MIME type, and strict MIME checking is enabled. | |
Refused to apply style from 'https://www.unicef.org/sites/default/files/css/css_8OvqoNnyEKAH1U1h7_x_7b3YOqBDM2gUwcJRro_Eki0.css?delta=6&language=en&theme=unicef_base&include=eJx1kNFSxCAMRX8Ilk_qBEjbzAbCkLC6fr21jq6s-sIczs1DciOaYV_wtYliXlbi46thw4od2EWGt3tggUx1c1eGLuF8f7KXG_ZOGV2DDluHtmvIfTTgy8NcRm0jMumO2SlCT_sCjRYYJklKYzQM_3inO3S0nTR8k1OmdA2QEqpSZPSncHpXwxIiKLpRKeG6fHDIkkbBapM87mbp6CPL5k0aJZ3yAlRngZnAR6hHP38E62CetShQmlSVjL8HT3u0Y0_WxCvUeauODIbZJ6l2XOSPRmAaUEkE7M-u5sDy0_IZSnjgl11TCzfCF_VN2mju5E9zKZIH4zv599xv' because its MIME type ('text/html') is not a supported stylesheet MIME type, and strict MIME checking is enabled. | |
Refused to apply style from 'https://www.unicef.org/sites/default/files/css/css_Tl0se977hb4AqsGb3IFmbn_VV0DUT8LykNAB8Q3lr7s.css?delta=1&language=en&theme=unicef_base&include=eJx1kNFSxCAMRX8Ilk_qBEjbzAbCkLC6fr21jq6s-sIczs1DciOaYV_wtYliXlbi46thw4od2EWGt3tggUx1c1eGLuF8f7KXG_ZOGV2DDluHtmvIfTTgy8NcRm0jMumO2SlCT_sCjRYYJklKYzQM_3inO3S0nTR8k1OmdA2QEqpSZPSncHpXwxIiKLpRKeG6fHDIkkbBapM87mbp6CPL5k0aJZ3yAlRngZnAR6hHP38E62CetShQmlSVjL8HT3u0Y0_WxCvUeauODIbZJ6l2XOSPRmAaUEkE7M-u5sDy0_IZSnjgl11TCzfCF_VN2mju5E9zKZIH4zv599xv' because its MIME type ('text/html') is not a supported stylesheet MIME type, and strict MIME checking is enabled. |
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.
Performance issues directly impact user engagement and conversion rates.
| Link destination | Link Text |
|---|---|
| www.unicef.org/emergencies/emergency-response-sudan | Learn more |
| www.unicef.org/emergencies/emergency-response-sudan | Learn more |
Format your HTML in a way that enables crawlers to better understand your app’s content.
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
Performance issues directly impact user engagement and conversion rates.
| Uncrawlable Link |
|---|
About UNICEF div.mega-nav-background > ul.dropdown-menu > li.dropdown-submenu > a.dropdown-toggle |
Our people div.mega-nav-background > ul.dropdown-menu > li.dropdown-submenu > a.dropdown-toggle |
Child rights and global goals div.mega-nav-background > ul.dropdown-menu > li.dropdown-submenu > a.dropdown-toggle |
Focus areas div.mega-nav-background > ul.dropdown-menu > li.dropdown-submenu > a.dropdown-toggle |
How we do it div.mega-nav-background > ul.dropdown-menu > li.dropdown-submenu > a.dropdown-toggle |
Research and knowledge div.mega-nav-background > ul.dropdown-menu > li.dropdown-submenu > a.dropdown-toggle |
Publications div.mega-nav-background > ul.dropdown-menu > li.dropdown-submenu > a.dropdown-toggle |
Data div.mega-nav-background > ul.dropdown-menu > li.dropdown-submenu > a.dropdown-toggle |
Stories and explainers div.mega-nav-background > ul.dropdown-menu > li.dropdown-submenu > a.dropdown-toggle |
Emergencies spotlight div.mega-nav-background > ul.dropdown-menu > li.dropdown-submenu > a.dropdown-toggle |
Voices div.mega-nav-background > ul.dropdown-menu > li.dropdown-submenu > a.dropdown-toggle |
Get involved div.mega-nav-background > ul.dropdown-menu > li.dropdown-submenu > a.dropdown-toggle |
Advocate for children div.mega-nav-background > ul.dropdown-menu > li.dropdown-submenu > a.dropdown-toggle |
Spotlight div.mega-nav-background > ul.dropdown-menu > li.dropdown-submenu > a.dropdown-toggle |
Communities div.mega-nav-background > ul.dropdown-menu > li.dropdown-submenu > a.dropdown-toggle |
To appear in search results, crawlers need access to your app.