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 Desktop Performance
45/100
These metrics represent real-world Chrome users experience viewing cnnb.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
Cumulative Layout Shift
Largest Contentful Paint
First Contentful Paint
First Input Delay
Metrics
Largest Contentful Paint1/100 8.6 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn More
Speed Index2/100 5.6 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more.
Time to Interactive36/100 5.3 s
Time to interactive is the amount of time it takes for the page to become fully interactive. Learn more.
First Contentful Paint66/100 1.4 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more.
Cumulative Layout Shift76/100 0.152
Cumulative Layout Shift measures the movement of visible elements within the viewport. Learn more.
Total Blocking Time100/100 10 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more.
Should Fix (21)
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 11,861 KiB
8,360 ms
Efficiently encode images
Potential savings of 9,783 KiB
7,520 ms
Use video formats for animated content
Potential savings of 2,672 KiB
2,120 ms
Properly size images
Potential savings of 2,545 KiB
1,920 ms
Eliminate render-blocking resources
Potential savings of 830 ms
831 ms
Reduce initial server response time
Root document took 1,380 ms
784 ms
Enable text compression
Potential savings of 359 KiB
280 ms
Remove unused JavaScript
Potential savings of 256 KiB
200 ms
Minify JavaScript
Potential savings of 133 KiB
120 ms
Remove unused CSS
Potential savings of 23 KiB
80 ms
Diagnostics
More information about the performance of your application. These numbers don't directly affect the Performance score.
Avoid enormous network payloads
Total size was 17,769 KiB
Does not use passive listeners to improve scrolling performance
Serve static assets with an efficient cache policy
182 resources found
Avoid `document.write()`
Avoid an excessive DOM size
2,293 elements
Minimizes main-thread work
1.8 s
Largest Contentful Paint element
1 element found
Avoid long main-thread tasks
4 long tasks found
Keep request counts low and transfer sizes small
195 requests • 17,769 KiB
Avoid large layout shifts
2 elements found
Avoid chaining critical requests
32 chains found
Passed Audits (7)
JavaScript execution time
0.2 s
Avoid multiple page redirects
Potential savings of 24,060 ms
Minify CSS
Defer offscreen images
Potential savings of 4 KiB
Preload key requests
All text remains visible during webfont loads
Preconnect to required origins
cnnb.com.cn Desktop SEO
80/100
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 (2)
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`
Passed Audits (8)
Page has successful HTTP status code
Document has a meta description
Page isn’t blocked from indexing
Document has a `<title>` element
Links have descriptive text
Document has a valid `hreflang`
Links are crawlable
Document avoids plugins
cnnb.com.cn Desktop Best Practices
54/100
These checks highlight opportunities to improve the overall code health of cnnb.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 (6)
User Experience
Serves images with low resolution
Displays images with incorrect aspect ratio
Trust and Safety
Does not use HTTPS
190 insecure requests found
Includes front-end JavaScript libraries with known security vulnerabilities
9 vulnerabilities detected
Links to cross-origin destinations are unsafe
General
Browser errors were logged to the console
Passed Audits (8)
Avoids requesting the notification permission on page load
Avoids requesting the geolocation permission on page load
Allows users to paste into password fields
Avoids Application Cache
Properly defines charset
Detected JavaScript libraries
Avoids deprecated APIs
Page has the HTML doctype
cnnb.com.cn Desktop Progressive Web App
4/100
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 (12)
Installable
Does not register a service worker that controls page and `start_url`
Does not use HTTPS
190 insecure requests found
Web app manifest does not meet the installability requirements
PWA Optimized
Does not set a theme color for the address bar.
Manifest doesn't have a maskable icon
Does not have a `<meta name="viewport">` tag with `width` or `initial-scale`
Is not configured for a custom splash screen
Does not provide a valid `apple-touch-icon`
Does not redirect HTTP traffic to HTTPS
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 26.8 s
Passed Audits (1)
Contains some content when JavaScript is not available
cnnb.com.cn Desktop Accessibility
43/100
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 (8)
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
Form elements do not have associated labels
Links do not have a discernible name
Navigation
These are opportunities to improve keyboard navigation in your application.
Heading elements are not in a sequentially-descending order
Tables and lists
These are opportunities to to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
`<dl>`'s do not contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
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.
Contrast
These are opportunities to improve the legibility of your content.
Background and foreground colors do not have a sufficient contrast ratio.
Passed Audits (7)
The page contains a heading, skip link, or landmark region
Definition list items are wrapped in `<dl>` elements
`[aria-hidden="true"]` is not present on the document `<body>`
Document has a `<title>` element
`<html>` element has a `[lang]` attribute
`<html>` element has a valid value for its `[lang]` attribute
`[id]` attributes on active, focusable elements are unique
Desktop Speed
19/100
These checks analyze the performance of cnnb.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 (6)
Optimize images
Leverage browser caching
Enable compression
Minify JavaScript
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Minify HTML
Passed Audits (4)
Avoid landing page redirects
Reduce server response time
Minify CSS
Prioritize visible content
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