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ets.org Desktop Performance
60/100
These metrics represent real-world Chrome users experience viewing ets.org web page. 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
Largest Contentful Paint
Cumulative Layout Shift
First Contentful Paint
First Input Delay
Metrics
Largest Contentful Paint24/100 3.5 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn More
First Contentful Paint34/100 1.9 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more.
Speed Index57/100 2.1 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more.
Time to Interactive72/100 3.4 s
Time to interactive is the amount of time it takes for the page to become fully interactive. Learn more.
Cumulative Layout Shift98/100 0.055
Cumulative Layout Shift measures the movement of visible elements within the viewport. Learn more.
Total Blocking Time100/100 60 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more.
Should Fix (14)
Opportunities
These suggestions can help your page load faster. They don't directly affect the Performance score.
Eliminate render-blocking resources
Potential savings of 1,650 ms
1,645 ms
Preload key requests
Potential savings of 1,630 ms
1,630 ms
Serve images in next-gen formats
Potential savings of 789 KiB
600 ms
Efficiently encode images
Potential savings of 623 KiB
480 ms
Remove unused JavaScript
Potential savings of 108 KiB
80 ms
Diagnostics
More information about the performance of your application. These numbers don't directly affect the Performance score.
Ensure text remains visible during webfont load
Avoid enormous network payloads
Total size was 5,817 KiB
Avoids an excessive DOM size
728 elements
Uses efficient cache policy on static assets
7 resources found
Avoid long main-thread tasks
2 long tasks found
Keep request counts low and transfer sizes small
84 requests • 5,818 KiB
Avoid large layout shifts
5 elements found
Avoid chaining critical requests
15 chains found
Largest Contentful Paint element
1 element found
Passed Audits (15)
Minify CSS
Enable text compression
Uses passive listeners to improve scrolling performance
Remove unused CSS
Potential savings of 38 KiB
Minify JavaScript
Avoid multiple page redirects
Potential savings of 190 ms
Preconnect to required origins
Defer offscreen images
Properly size images
Minimize third-party usage
Third-party code blocked the main thread for 0 ms
Initial server response time was short
Root document took 80 ms
Avoids `document.write()`
Use video formats for animated content
JavaScript execution time
0.4 s
Minimizes main-thread work
1.1 s
ets.org Desktop SEO
91/100
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.
Should Fix (1)
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Links do not have descriptive text
5 links found
Passed Audits (10)
Links are crawlable
Document has a meta description
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
robots.txt is valid
Page has successful HTTP status code
Document has a valid `hreflang`
Document has a `<title>` element
Image elements have `[alt]` attributes
Document avoids plugins
Page isn’t blocked from indexing
ets.org Desktop Best Practices
77/100
These checks highlight opportunities to improve the overall code health of ets.org page. Current recommendations will help to make your page fast and secure, to create a good user experience and to avoid deprecated technologies.
Should Fix (3)
Trust and Safety
Does not use HTTPS
60 insecure requests found
Links to cross-origin destinations are unsafe
Includes front-end JavaScript libraries with known security vulnerabilities
3 vulnerabilities detected
Passed Audits (11)
Serves images with appropriate resolution
No browser errors logged to the console
Detected JavaScript libraries
Avoids requesting the geolocation permission on page load
Allows users to paste into password fields
Avoids requesting the notification permission on page load
Page has the HTML doctype
Displays images with correct aspect ratio
Avoids deprecated APIs
Properly defines charset
Avoids Application Cache
ets.org Desktop Progressive Web App
11/100
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.
Should Fix (11)
Installable
Does not use HTTPS
60 insecure requests found
Does not register a service worker that controls page and `start_url`
Web app manifest does not meet the installability requirements
PWA Optimized
Manifest doesn't have a maskable icon
Is not configured for a custom splash screen
Does not set a theme color for the address bar.
Does not provide a valid `apple-touch-icon`
Does not redirect HTTP traffic to HTTPS
Fast and reliable
Current page does not respond with a 200 when offline
Page load is not fast enough on mobile networks
Interactive on simulated mobile network at 16.3 s
`start_url` does not respond with a 200 when offline
Passed Audits (2)
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Contains some content when JavaScript is not available
ets.org Desktop Accessibility
100/100
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.
Passed Audits (27)
`<html>` element has a `[lang]` attribute
`[aria-hidden="true"]` elements do not contain focusable descendents
No element has a `[tabindex]` value greater than 0
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
Links have a discernible name
Heading elements appear in a sequentially-descending order
`<video>` elements contain a `<track>` element with `[kind="description"]`
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
`[aria-*]` attributes have valid values
`[aria-*]` attributes match their roles
`<video>` elements contain a `<track>` element with `[kind="captions"]`
Form elements have associated labels
`[id]` attributes on active, focusable elements are unique
`[aria-*]` attributes are valid and not misspelled
The page contains a heading, skip link, or landmark region
Background and foreground colors have a sufficient contrast ratio
`[role]`s are contained by their required parent element
`[role]`s have all required `[aria-*]` attributes
Document has a `<title>` element
ARIA IDs are unique
Image elements have `[alt]` attributes
`[aria-hidden="true"]` is not present on the document `<body>`
`[role]` values are valid
Buttons have an accessible name
`<html>` element has a valid value for its `[lang]` attribute
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Desktop Speed
57/100
These checks analyze the performance of ets.org on desktop devices and return PageSpeed score and information on how to improve the load time. What makes a good Progressive Web App?
Should Fix (6)
Optimize images
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Leverage browser caching
Enable compression
Minify HTML
Minify JavaScript
Passed Audits (4)
Avoid landing page redirects
Reduce server response time
Minify CSS
Prioritize visible content
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