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cmi.com.hk Desktop Performance
73/100
These metrics represent real-world Chrome users experience viewing cmi.com.hk 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.
Metrics
Speed Index24/100 3.1 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more.
Largest Contentful Paint48/100 2.5 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn More
First Contentful Paint85/100 1.0 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more.
Time to Interactive100/100 1.0 s
Time to interactive is the amount of time it takes for the page to become fully interactive. Learn more.
Cumulative Layout Shift100/100 0
Cumulative Layout Shift measures the movement of visible elements within the viewport. Learn more.
Total Blocking Time100/100 0 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more.
Should Fix (11)
Opportunities
These suggestions can help your page load faster. They don't directly affect the Performance score.
Serve images in next-gen formats
Potential savings of 824 KiB
600 ms
Eliminate render-blocking resources
Potential savings of 370 ms
370 ms
Avoid multiple page redirects
Potential savings of 340 ms
340 ms
Reduce initial server response time
Root document took 680 ms
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
Serve static assets with an efficient cache policy
26 resources found
Largest Contentful Paint element
1 element found
Keep request counts low and transfer sizes small
32 requests • 1,784 KiB
Avoid large layout shifts
5 elements found
Avoid chaining critical requests
18 chains found
Avoid long main-thread tasks
2 long tasks found
Passed Audits (18)
Minimizes main-thread work
0.4 s
Defer offscreen images
Avoids enormous network payloads
Total size was 1,784 KiB
JavaScript execution time
0.1 s
Avoids `document.write()`
Properly size images
Avoids an excessive DOM size
418 elements
Preload key requests
Minify CSS
Potential savings of 4 KiB
Preconnect to required origins
Efficiently encode images
Use video formats for animated content
Minimize third-party usage
Third-party code blocked the main thread for 0 ms
Remove unused CSS
Potential savings of 11 KiB
Remove unused JavaScript
Potential savings of 21 KiB
Uses passive listeners to improve scrolling performance
Enable text compression
Minify JavaScript
cmi.com.hk Desktop SEO
92/100
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
10 links found
Passed Audits (11)
Document has a valid `hreflang`
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Document avoids plugins
Document has a valid `rel=canonical`
Page isn’t blocked from indexing
Document has a meta description
Page has successful HTTP status code
Links are crawlable
Document has a `<title>` element
Image elements have `[alt]` attributes
robots.txt is valid
cmi.com.hk Desktop Best Practices
69/100
These checks highlight opportunities to improve the overall code health of cmi.com.hk 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 (4)
Trust and Safety
Does not use HTTPS
1 insecure request found
Includes front-end JavaScript libraries with known security vulnerabilities
4 vulnerabilities detected
Links to cross-origin destinations are unsafe
General
Browser errors were logged to the console
Passed Audits (10)
Properly defines charset
Avoids deprecated APIs
Detected JavaScript libraries
Allows users to paste into password fields
Page has the HTML doctype
Avoids requesting the geolocation permission on page load
Avoids Application Cache
Displays images with correct aspect ratio
Serves images with appropriate resolution
Avoids requesting the notification permission on page load
cmi.com.hk Desktop Progressive Web App
19/100
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 (10)
PWA Optimized
Does not provide a valid `apple-touch-icon`
Is not configured for a custom splash screen
Manifest doesn't have a maskable icon
Does not set a theme color for the address bar.
Installable
Does not use HTTPS
1 insecure request found
Does not register a service worker that controls page and `start_url`
Web app manifest does not meet the installability requirements
Fast and reliable
`start_url` does not respond with a 200 when offline
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 10.2 s
Passed Audits (3)
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Contains some content when JavaScript is not available
Redirects HTTP traffic to HTTPS
cmi.com.hk Desktop Accessibility
96/100
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.
Should Fix (2)
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.
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Background and foreground colors do not have a sufficient contrast ratio.
Passed Audits (20)
`[role]` values are valid
`<html>` element has a valid value for its `[lang]` attribute
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
`<html>` element has a `[lang]` attribute
Form elements have associated labels
`[aria-hidden="true"]` elements do not contain focusable descendents
`[aria-*]` attributes are valid and not misspelled
`[role]`s have all required `[aria-*]` attributes
Heading elements appear in a sequentially-descending order
`[role]`s are contained by their required parent element
`[id]` attributes on active, focusable elements are unique
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
`[aria-hidden="true"]` is not present on the document `<body>`
The page contains a heading, skip link, or landmark region
Document has a `<title>` element
Image elements have `[alt]` attributes
`[aria-*]` attributes have valid values
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
`[aria-*]` attributes match their roles
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