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doda.jp Mobile Performance
9/100
These metrics represent real-world Chrome users experience viewing doda.jp 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
Largest Contentful Paint
First Contentful Paint
First Input Delay
Cumulative Layout Shift
Metrics
Time to Interactive0/100 31.0 s
Time to interactive is the amount of time it takes for the page to become fully interactive. Learn more.
Total Blocking Time0/100 3,730 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more.
Largest Contentful Paint0/100 21.2 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn More
Speed Index2/100 13.2 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more.
First Contentful Paint27/100 5.1 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more.
Cumulative Layout Shift100/100 0.029
Cumulative Layout Shift measures the movement of visible elements within the viewport. Learn more.
Should Fix (21)
Opportunities
These suggestions can help your page load faster. They don't directly affect the Performance score.
Eliminate render-blocking resources
Potential savings of 4,870 ms
4,865 ms
Serve images in next-gen formats
Potential savings of 491 KiB
4,650 ms
Remove unused JavaScript
Potential savings of 1,405 KiB
4,050 ms
Defer offscreen images
Potential savings of 463 KiB
2,700 ms
Efficiently encode images
Potential savings of 145 KiB
1,800 ms
Enable text compression
Potential savings of 302 KiB
1,200 ms
Properly size images
Potential savings of 79 KiB
750 ms
Minify JavaScript
Potential savings of 90 KiB
510 ms
Diagnostics
More information about the performance of your application. These numbers don't directly affect the Performance score.
Avoid `document.write()`
Avoid an excessive DOM size
8,713 elements
Reduce the impact of third-party code
Third-party code blocked the main thread for 1,210 ms
Does not use passive listeners to improve scrolling performance
Serve static assets with an efficient cache policy
146 resources found
Minimize main-thread work
12.6 s
Reduce JavaScript execution time
7.0 s
Avoid enormous network payloads
Total size was 3,796 KiB
Avoid large layout shifts
1 element found
Keep request counts low and transfer sizes small
374 requests • 3,796 KiB
Avoid chaining critical requests
28 chains found
Largest Contentful Paint element
1 element found
Avoid long main-thread tasks
20 long tasks found
Passed Audits (8)
All text remains visible during webfont loads
Avoid multiple page redirects
Potential savings of 630 ms
Initial server response time was short
Root document took 140 ms
Minify CSS
Potential savings of 7 KiB
Remove unused CSS
Potential savings of 13 KiB
Preload key requests
Use video formats for animated content
Preconnect to required origins
doda.jp Mobile SEO
83/100
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 (3)
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Image elements do not have `[alt]` attributes
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. Learn more.
Tap targets are not sized appropriately
88% appropriately sized tap targets
Passed Audits (10)
robots.txt is valid
Document has a meta description
Document has a valid `hreflang`
Links have descriptive text
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Page has successful HTTP status code
Page isn’t blocked from indexing
Document uses legible font sizes
74.2% legible text
Document avoids plugins
Document has a `<title>` element
doda.jp Mobile Best Practices
46/100
These checks highlight opportunities to improve the overall code health of doda.jp 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 (7)
Trust and Safety
Requests the notification permission on page load
Does not use HTTPS
1 insecure request found
Links to cross-origin destinations are unsafe
Includes front-end JavaScript libraries with known security vulnerabilities
5 vulnerabilities detected
General
Browser errors were logged to the console
User Experience
Displays images with incorrect aspect ratio
Browser Compatibility
Page lacks the HTML doctype, thus triggering quirks-mode
Passed Audits (7)
Avoids requesting the geolocation permission on page load
Avoids Application Cache
Allows users to paste into password fields
Detected JavaScript libraries
Avoids deprecated APIs
Properly defines charset
Serves images with appropriate resolution
doda.jp 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
Is not configured for a custom splash screen
Does not set a theme color for the address bar.
Manifest doesn't have a maskable icon
Fast and reliable
Page load is not fast enough on mobile networks
Interactive at 31.0 s
`start_url` does not respond with a 200 when offline
Current page does not respond with a 200 when offline
Installable
Does not use HTTPS
1 insecure request found
Web app manifest does not meet the installability requirements
Does not register a service worker that controls page and `start_url`
Passed Audits (5)
Content is sized correctly for the viewport
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Redirects HTTP traffic to HTTPS
Contains some content when JavaScript is not available
Provides a valid `apple-touch-icon`
doda.jp Mobile Accessibility
56/100
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 (6)
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.
Image elements do not have `[alt]` attributes
Links do not have a discernible name
Navigation
These are opportunities to improve keyboard navigation in your application.
`[id]` attributes on active, focusable elements are not unique
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
`<html>` element does not have a `[lang]` attribute
Contrast
These are opportunities to improve the legibility of your content.
Background and foreground colors do not have a sufficient contrast ratio.
Best practices
These items highlight common accessibility best practices.
`[user-scalable="no"]` is used in the `<meta name="viewport">` element or the `[maximum-scale]` attribute is less than 5.
Passed Audits (9)
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
The page contains a heading, skip link, or landmark region
`[aria-hidden="true"]` is not present on the document `<body>`
ARIA IDs are unique
Definition list items are wrapped in `<dl>` elements
`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Heading elements appear in a sequentially-descending order
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
Document has a `<title>` element
Mobile Usability
99/100
These checks validate how easily a visitor can use doda.jp 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
45/100
These checks analyze the performance of doda.jp 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 (7)
Leverage browser caching
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Prioritize visible content
Enable compression
Optimize images
Minify JavaScript
Minify HTML
Passed Audits (3)
Avoid landing page redirects
Reduce server response time
Minify CSS
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