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tim.it Mobile Performance
24/100
These metrics represent real-world Chrome users experience viewing tim.it 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
Cumulative Layout Shift
Largest Contentful Paint
First Contentful Paint
First Input Delay
Metrics
Total Blocking Time12/100 1,190 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more.
Largest Contentful Paint12/100 6.2 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn More
Speed Index13/100 9.2 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more.
Time to Interactive27/100 10.1 s
Time to interactive is the amount of time it takes for the page to become fully interactive. Learn more.
First Contentful Paint53/100 3.9 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more.
Cumulative Layout Shift88/100 0.109
Cumulative Layout Shift measures the movement of visible elements within the viewport. Learn more.
Should Fix (18)
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 770 KiB
4,020 ms
Efficiently encode images
Potential savings of 338 KiB
1,800 ms
Eliminate render-blocking resources
Potential savings of 1,340 ms
1,335 ms
Avoid multiple page redirects
Potential savings of 1,110 ms
1,110 ms
Reduce initial server response time
Root document took 1,580 ms
976 ms
Remove unused CSS
Potential savings of 69 KiB
390 ms
Remove unused JavaScript
Diagnostics
More information about the performance of your application. These numbers don't directly affect the Performance score.
Avoid `document.write()`
Reduce the impact of third-party code
Third-party code blocked the main thread for 780 ms
Serve static assets with an efficient cache policy
40 resources found
Minimize main-thread work
6.5 s
Avoid an excessive DOM size
1,855 elements
Reduce JavaScript execution time
1.9 s
Avoid long main-thread tasks
19 long tasks found
Avoid large layout shifts
5 elements found
Avoid chaining critical requests
26 chains found
Largest Contentful Paint element
1 element found
Keep request counts low and transfer sizes small
81 requests • 1,889 KiB
Passed Audits (11)
Use video formats for animated content
Preload key requests
All text remains visible during webfont loads
Defer offscreen images
Potential savings of 115 KiB
Avoids enormous network payloads
Total size was 1,889 KiB
Minify JavaScript
Minify CSS
Uses passive listeners to improve scrolling performance
Enable text compression
Properly size images
Preconnect to required origins
tim.it Mobile SEO
100/100
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.
Passed Audits (14)
Links have descriptive text
Page has successful HTTP status code
Document has a valid `hreflang`
Page isn’t blocked from indexing
Document uses legible font sizes
93.75% legible text
Tap targets are sized appropriately
100% appropriately sized tap targets
Links are crawlable
Document has a `<title>` element
Image elements have `[alt]` attributes
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Document avoids plugins
Document has a meta description
robots.txt is valid
Document has a valid `rel=canonical`
tim.it Mobile Best Practices
77/100
These checks highlight opportunities to improve the overall code health of tim.it mobile 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
Includes front-end JavaScript libraries with known security vulnerabilities
1 vulnerability detected
Does not use HTTPS
1 insecure request found
General
Browser errors were logged to the console
Passed Audits (11)
Properly defines charset
Avoids requesting the notification permission on page load
Links to cross-origin destinations are safe
Detected JavaScript libraries
Avoids Application Cache
Avoids deprecated APIs
Allows users to paste into password fields
Avoids requesting the geolocation permission on page load
Page has the HTML doctype
Serves images with appropriate resolution
Displays images with correct aspect ratio
tim.it Mobile Progressive Web App
25/100
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 (9)
PWA Optimized
Does not set a theme color for the address bar.
Is not configured for a custom splash screen
Manifest doesn't have a maskable icon
Fast and reliable
Page load is not fast enough on mobile networks
Interactive at 10.1 s
`start_url` does not respond with a 200 when offline
Current page does not respond with a 200 when offline
Installable
Does not register a service worker that controls page and `start_url`
Web app manifest does not meet the installability requirements
Does not use HTTPS
1 insecure request found
Passed Audits (5)
Content is sized correctly for the viewport
Provides a valid `apple-touch-icon`
Contains some content when JavaScript is not available
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Redirects HTTP traffic to HTTPS
tim.it Mobile Accessibility
87/100
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 (5)
Navigation
These are opportunities to improve keyboard navigation in your application.
Heading elements are not in a sequentially-descending order
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.
`<frame>` or `<iframe>` elements do not have a title
Form elements do not have associated labels
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)
No element has a `[tabindex]` value greater than 0
`[role]`s have all required `[aria-*]` attributes
`<html>` element has a valid value for its `[lang]` attribute
Buttons have an accessible name
Document has a `<title>` element
The page contains a heading, skip link, or landmark region
`[role]`s are contained by their required parent element
`[aria-*]` attributes have valid values
`[aria-hidden="true"]` is not present on the document `<body>`
`[id]` attributes on active, focusable elements are unique
Image elements have `[alt]` attributes
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
`[role]` values are valid
ARIA IDs are unique
`[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
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
`[aria-*]` attributes match their roles
`[aria-*]` attributes are valid and not misspelled
`<html>` element has a `[lang]` attribute
Mobile Usability
94/100
These checks validate how easily a visitor can use tim.it 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).
Should Fix (1)
Size tap targets appropriately
Passed Audits (4)
Avoid plugins
Configure the viewport
Size content to viewport
Use legible font sizes
Mobile Speed
44/100
These checks analyze the performance of tim.it on mobile devices and return PageSpeed score and information on how to improve the load time. What makes a good Progressive Web App?
Should Fix (9)
Leverage browser caching
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Avoid landing page redirects
Optimize images
Enable compression
Minify HTML
Minify CSS
Minify JavaScript
Reduce server response time
Passed Audits (1)
Prioritize visible content
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