Cnnb.com.cn 中国宁波网-新闻-服务-论坛-门户
中国宁波网由中共宁波市委宣传部和宁波日报报业集团联合主办，创办于2001年6月1日，是宁波市唯一一家经国务院新闻办公室批准正式建立的综合性重点新闻网站。中国宁波网作为宁波市级主流媒体，立足宁波、辐射华东，为用户提供新闻、资讯、服务、论坛、游戏等多种网络产品，以及宁波日报报业集团旗下《宁波日报》《宁波...
cnnb.com.cn Mobile Performance
31/100
These metrics represent real-world Chrome users experience viewing cnnb.com.cn 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.
Metrics
Largest Contentful Paint0/100 48.3 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn More
Time to Interactive0/100 44.3 s
Time to interactive is the amount of time it takes for the page to become fully interactive. Learn more.
Cumulative Layout Shift19/100 0.464
Cumulative Layout Shift measures the movement of visible elements within the viewport. Learn more.
Speed Index19/100 8.4 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more.
First Contentful Paint24/100 5.4 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more.
Total Blocking Time94/100 250 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more.
Should Fix (18)
Opportunities
These suggestions can help your page load faster. They don't directly affect the Performance score.
Use video formats for animated content
Potential savings of 4,667 KiB
28,500 ms
Remove unused JavaScript
Potential savings of 301 KiB
1,500 ms
Eliminate render-blocking resources
Potential savings of 180 ms
180 ms
Enable text compression
Potential savings of 62 KiB
150 ms
Serve images in next-gen formats
Potential savings of 174 KiB
150 ms
Diagnostics
More information about the performance of your application. These numbers don't directly affect the Performance score.
Serve static assets with an efficient cache policy
277 resources found
Avoid enormous network payloads
Total size was 15,530 KiB
Does not use passive listeners to improve scrolling performance
Ensure text remains visible during webfont load
Avoid `document.write()`
Minimize main-thread work
9.6 s
Reduce JavaScript execution time
1.4 s
Avoids an excessive DOM size
738 elements
Avoid chaining critical requests
36 chains found
Keep request counts low and transfer sizes small
293 requests • 15,530 KiB
Avoid large layout shifts
2 elements found
Avoid long main-thread tasks
18 long tasks found
Largest Contentful Paint element
1 element found
Passed Audits (10)
Minify JavaScript
Initial server response time was short
Root document took 260 ms
Properly size images
Preload key requests
Avoid multiple page redirects
Remove unused CSS
Defer offscreen images
Potential savings of 4 KiB
Minify CSS
Preconnect to required origins
Efficiently encode images
Potential savings of 155 KiB
cnnb.com.cn Mobile SEO
74/100
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 (4)
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
Document does not have a meta description
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
94% appropriately sized tap targets
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Links are not crawlable
Passed Audits (8)
Links have descriptive text
Document has a valid `hreflang`
Document uses legible font sizes
100% legible text
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Document has a `<title>` element
Page has successful HTTP status code
Page isn’t blocked from indexing
Document avoids plugins
cnnb.com.cn Mobile Best Practices
69/100
These checks highlight opportunities to improve the overall code health of cnnb.com.cn 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 (4)
User Experience
Serves images with low resolution
Trust and Safety
Includes front-end JavaScript libraries with known security vulnerabilities
4 vulnerabilities detected
Does not use HTTPS
226 insecure requests found
General
Browser errors were logged to the console
Passed Audits (10)
Page has the HTML doctype
Avoids requesting the geolocation permission on page load
Avoids requesting the notification permission on page load
Detected JavaScript libraries
Allows users to paste into password fields
Avoids deprecated APIs
Avoids Application Cache
Displays images with correct aspect ratio
Properly defines charset
Links to cross-origin destinations are safe
cnnb.com.cn Mobile Progressive Web App
18/100
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
Page load is not fast enough on mobile networks
Interactive at 44.3 s
PWA Optimized
Does not redirect HTTP traffic to HTTPS
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
Installable
Web app manifest does not meet the installability requirements
Does not use HTTPS
226 insecure requests found
Does not register a service worker that controls page and `start_url`
Passed Audits (4)
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Content is sized correctly for the viewport
Provides a valid `apple-touch-icon`
Contains some content when JavaScript is not available
cnnb.com.cn Mobile Accessibility
34/100
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.
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
Tables and lists
These are opportunities to to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
List items (`<li>`) are not contained within `<ul>` or `<ol>` parent elements.
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
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 (4)
Heading elements appear in a sequentially-descending order
`[aria-hidden="true"]` is not present on the document `<body>`
Document has a `<title>` element
The page contains a heading, skip link, or landmark region
Mobile Usability
99/100
These checks validate how easily a visitor can use cnnb.com.cn 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
17/100
These checks analyze the performance of cnnb.com.cn 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 (8)
Optimize images
Leverage browser caching
Enable compression
Minify JavaScript
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Prioritize visible content
Minify HTML
Minify CSS
Passed Audits (2)
Avoid landing page redirects
Reduce server response time
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