Tools & Wizards About Us
nb22.cn screenshot

Report Summary

  • 32

    Performance

    Renders faster than
    52% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 60% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

nb22.cn

宁波二手车交易信息内部网_宁波市鄞州柒车商务信息服务有限公司

Page Load Speed

27.9 sec in total

First Response

1.1 sec

Resources Loaded

26.6 sec

Page Rendered

179 ms

nb22.cn screenshot

About Website

Welcome to nb22.cn homepage info - get ready to check Nb 22 best content right away, or after learning these important things about nb22.cn

宁波二手车交易信息网由宁波二手车经纪行业协会举办，为宁波二手车经营商户提供宁波二手车交易信息的行业内部信息交流平台

Visit nb22.cn

Key Findings

We analyzed Nb22.cn page load time and found that the first response time was 1.1 sec and then it took 26.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

nb22.cn performance score

32

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value19.2 s

0/100

10%

LCP (Largest Contentful Paint)

Value29.7 s

0/100

25%

SI (Speed Index)

Value29.1 s

0/100

10%

TBT (Total Blocking Time)

Value190 ms

91/100

30%

CLS (Cumulative Layout Shift)

Value0.363

30/100

15%

TTI (Time to Interactive)

Value30.0 s

0/100

10%

Network Requests Diagram

nb22.cn

1144 ms

dealer_login.css

1532 ms

jquery-1.4.2.min.js

6036 ms

base.css

2458 ms

dealer_common.css

3449 ms

Our browser made a total of 10 requests to load all elements on the main page. We found that 20% of them (2 requests) were addressed to the original Nb22.cn, 60% (6 requests) were made to Nb77.cn and 20% (2 requests) were made to Pub.idqqimg.com. The less responsive or slowest element that took the longest time to load (19.4 sec) relates to the external source Nb77.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 66.8 kB (68%)

Content Size

98.9 kB

After Optimization

32.1 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Nb22.cn main page is 98.9 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. Only 10% of websites need less resources to load. Javascripts take 72.3 kB which makes up the majority of the site volume.

HTML Optimization

-62%

Potential reduce by 5.1 kB

  • Original 8.3 kB
  • After minification 7.7 kB
  • After compression 3.2 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 5.1 kB or 62% of the original size.

JavaScript Optimization

-66%

Potential reduce by 47.7 kB

  • Original 72.3 kB
  • After minification 72.3 kB
  • After compression 24.6 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 47.7 kB or 66% of the original size.

CSS Optimization

-76%

Potential reduce by 13.9 kB

  • Original 18.2 kB
  • After minification 16.6 kB
  • After compression 4.3 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Nb22.cn needs all CSS files to be minified and compressed as it can save up to 13.9 kB or 76% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

8

After Optimization

8

  • Images
  • JavaScript
  • CSS

The browser has sent 8 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nb 22. According to our analytics all requests are already optimized.

Network Requests Diagram

nb22.cn

nb22.cn

1144 ms

dealer_login.css

dealer_login.css

1532 ms

jquery-1.4.2.min.js

jquery-1.4.2.min.js

6036 ms

base.css

base.css

2458 ms

dealer_common.css

dealer_common.css

3449 ms

vdimgck.php

vdimgck.php

413 ms

loginbg.jpg

loginbg.jpg

19378 ms

login.gif

login.gif

500 ms

button_old_31.gif

button_old_31.gif

450 ms

button_old_31.gif

button_old_31.gif

226 ms

Accessibility Review

nb22.cn accessibility score

85

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

nb22.cn best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

nb22.cn SEO score

85

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

robots.txt is not valid

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](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    GBK

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nb22.cn can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Nb22.cn main page’s claimed encoding is gbk. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

nb22.cn

Open Graph description is not detected on the main page of Nb 22. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: