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太平洋亲子网为家长们提供0-6岁各阶段孩子成长、教育、家庭和用品等全方位、多角度的各种实用资讯以及有关怀孕的各方面知识。 ……
pcbaby.com.cn Desktop Performance
70/100
These metrics represent real-world Chrome users experience viewing pcbaby.com.cn 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
First Input Delay
Largest Contentful Paint
Cumulative Layout Shift
First Contentful Paint
Metrics
Speed Index21/100 3.3 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more.
Total Blocking Time63/100 280 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more.
Largest Contentful Paint66/100 1.9 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn More
First Contentful Paint98/100 0.7 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.
Time to Interactive100/100 1.3 s
Time to interactive is the amount of time it takes for the page to become fully interactive. Learn more.
Should Fix (12)
Opportunities
These suggestions can help your page load faster. They don't directly affect the Performance score.
Reduce initial server response time
Root document took 2,640 ms
2,044 ms
Avoid multiple page redirects
Potential savings of 380 ms
380 ms
Serve images in next-gen formats
Potential savings of 261 KiB
280 ms
Efficiently encode images
Potential savings of 135 KiB
120 ms
Properly size images
Potential savings of 129 KiB
80 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
5,511 elements
Serve static assets with an efficient cache policy
65 resources found
Largest Contentful Paint element
1 element found
Avoid chaining critical requests
2 chains found
Avoid long main-thread tasks
3 long tasks found
Keep request counts low and transfer sizes small
81 requests • 978 KiB
Passed Audits (15)
Defer offscreen images
Potential savings of 142 KiB
JavaScript execution time
0.1 s
Minify CSS
Avoids enormous network payloads
Total size was 978 KiB
All text remains visible during webfont loads
Use video formats for animated content
Preload key requests
Enable text compression
Potential savings of 19 KiB
Minimizes main-thread work
1.6 s
Eliminate render-blocking resources
Remove unused CSS
Preconnect to required origins
Minify JavaScript
Remove unused JavaScript
Potential savings of 23 KiB
Uses passive listeners to improve scrolling performance
pcbaby.com.cn Desktop SEO
73/100
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)
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.
Does not have a `<meta name="viewport">` tag with `width` or `initial-scale`
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Links are not crawlable
Passed Audits (8)
Document has a meta description
Document has a `<title>` element
Links have descriptive text
Document has a valid `hreflang`
Page has successful HTTP status code
Document avoids plugins
Page isn’t blocked from indexing
robots.txt is valid
pcbaby.com.cn Desktop Best Practices
62/100
These checks highlight opportunities to improve the overall code health of pcbaby.com.cn 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 (5)
Trust and Safety
Links to cross-origin destinations are unsafe
Does not use HTTPS
3 insecure requests found
Includes front-end JavaScript libraries with known security vulnerabilities
4 vulnerabilities detected
User Experience
Displays images with incorrect aspect ratio
General
Browser errors were logged to the console
Passed Audits (9)
Avoids requesting the notification permission on page load
Allows users to paste into password fields
Detected JavaScript libraries
Page has the HTML doctype
Avoids deprecated APIs
Properly defines charset
Serves images with appropriate resolution
Avoids requesting the geolocation permission on page load
Avoids Application Cache
pcbaby.com.cn Desktop Progressive Web App
37/100
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)
Fast and reliable
`start_url` does not respond with a 200 when offline
Current page does not respond with a 200 when offline
Installable
Web app manifest does not meet the installability requirements
Does not use HTTPS
3 insecure requests found
Does not register a service worker that controls page and `start_url`
PWA Optimized
Manifest doesn't have a maskable icon
Does not have a `<meta name="viewport">` tag with `width` or `initial-scale`
Does not set a theme color for the address bar.
Is not configured for a custom splash screen
Does not provide a valid `apple-touch-icon`
Passed Audits (3)
Redirects HTTP traffic to HTTPS
Contains some content when JavaScript is not available
Page load is fast enough on mobile networks
pcbaby.com.cn Desktop Accessibility
42/100
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 (7)
Contrast
These are opportunities to improve the legibility of your content.
Background and foreground colors do not have a sufficient contrast ratio.
Tables and lists
These are opportunities to to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Definition list items are not wrapped in `<dl>` elements
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.
Form elements do not have associated labels
Image elements do not have `[alt]` attributes
Links do not have a discernible name
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
Navigation
These are opportunities to improve keyboard navigation in your application.
The page does not contain a heading, skip link, or landmark region
Passed Audits (6)
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Document has a `<title>` element
`[aria-hidden="true"]` is not present on the document `<body>`
`[id]` attributes on active, focusable elements are unique
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Desktop Speed
74/100
These checks analyze the performance of pcbaby.com.cn 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 (4)
Optimize images
Leverage browser caching
Enable compression
Minify JavaScript
Passed Audits (6)
Avoid landing page redirects
Reduce server response time
Minify CSS
Minify HTML
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Prioritize visible content
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