Who.int WHO | World Health Organization

WHO's primary role is to direct international health within the United Nations' system and to lead partners in global health responses.

who.int Mobile Performance
18/100
These metrics represent real-world Chrome users experience viewing who.int on mobile devices. Reports are focused on loading performance and other critical factors that most affect user experience. Follow our guide to track, optimize, and improve the quality of your web pages.

User Loading Experience

First Input Delay

First Contentful Paint

Cumulative Layout Shift

Largest Contentful Paint

Metrics


Total Blocking Time0/100 2,980 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more.

Largest Contentful Paint1/100 9.1 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn More

Time to Interactive7/100 15.5 s
Time to interactive is the amount of time it takes for the page to become fully interactive. Learn more.

Speed Index18/100 8.5 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more.

First Contentful Paint59/100 3.6 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more.

Cumulative Layout Shift100/100 0
Cumulative Layout Shift measures the movement of visible elements within the viewport. Learn more.

Opportunities

These suggestions can help your page load faster. They don't directly affect the Performance score.

Diagnostics

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

who.int Mobile SEO
93/100
These checks ensure that your page is optimized for search engine results ranking. There are additional factors Lighthouse does not check that may affect your search ranking. Learn more. Run these additional validators on your site to check additional SEO best practices.
Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

who.int Mobile Best Practices
62/100
These checks highlight opportunities to improve the overall code health of who.int mobile page. Current recommendations will help to make your page fast and secure, to create a good user experience and to avoid deprecated technologies.
General

User Experience

Trust and Safety

who.int Mobile Progressive Web App
21/100
These checks validate the aspects of a Progressive Web App. Learn more. These checks are required by the baseline PWA Checklist but are not automatically checked by Lighthouse. They do not affect your score but it's important that you verify them manually.
Installable

Fast and reliable

PWA Optimized

who.int Mobile Accessibility
90/100
These checks highlight opportunities to improve the accessibility of your web app. Only a subset of accessibility issues can be automatically detected so manual testing is also encouraged. These items address areas which an automated testing tool cannot cover. Learn more in our guide on conducting an accessibility review.
Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Contrast

These are opportunities to improve the legibility of your content.

Mobile Usability
98/100
These checks validate how easily a visitor can use who.int on a mobile device. Test results include a list of any mobile usability problems. Mobile usability problems are issues that can affect a user that visits the page on a mobile (small screen) device, including small font sizes (which are hard to read on a small screen).
Mobile Speed
28/100
These checks analyze the performance of who.int on mobile devices and return PageSpeed score and information on how to improve the load time. What makes a good Progressive Web App?
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