Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 40

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

jzabc.cn

免费建站_免费小程序_网站建设_免费网站_自助建站-【建站ABC】

Page Load Speed

50.1 sec in total

First Response

1.6 sec

Resources Loaded

48.2 sec

Page Rendered

268 ms

jzabc.cn screenshot

About Website

Visit jzabc.cn now to see the best up-to-date Jzabc content for China and also check out these interesting facts you probably never knew about jzabc.cn

建站ABC为中小企业提供免费建站,免费网站,免费微网站,自助建站,网站建设,免费网站申请,免费网站建设,免费建网站,免费微信网站,手机APP,小程序等永久性免费建站服务。

Visit jzabc.cn

Key Findings

We analyzed Jzabc.cn page load time and found that the first response time was 1.6 sec and then it took 48.5 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there were 3 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

jzabc.cn performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.7 s

5/100

10%

LCP (Largest Contentful Paint)

Value12.4 s

0/100

25%

SI (Speed Index)

Value16.7 s

0/100

10%

TBT (Total Blocking Time)

Value16,540 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value23.3 s

1/100

10%

Network Requests Diagram

www.jzabc.cn

1571 ms

base.css

595 ms

style.css

1669 ms

jquery-1.7.1.min.js

13773 ms

focus.js

3374 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 69% of them (41 requests) were addressed to the original Jzabc.cn, 12% (7 requests) were made to Pub.idqqimg.com and 8% (5 requests) were made to Bdimg.share.baidu.com. The less responsive or slowest element that took the longest time to load (20.1 sec) belongs to the original domain Jzabc.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 282.2 kB (26%)

Content Size

1.1 MB

After Optimization

822.5 kB

In fact, the total size of Jzabc.cn main page is 1.1 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 15% of websites need less resources to load. Images take 938.6 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 23.5 kB

  • Original 29.9 kB
  • After minification 25.7 kB
  • After compression 6.4 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. This page needs HTML code to be minified as it can gain 4.2 kB, which is 14% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 23.5 kB or 79% of the original size.

Image Optimization

-18%

Potential reduce by 166.6 kB

  • Original 938.6 kB
  • After minification 772.0 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Obviously, Jzabc needs image optimization as it can save up to 166.6 kB or 18% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-68%

Potential reduce by 83.0 kB

  • Original 121.6 kB
  • After minification 113.7 kB
  • After compression 38.5 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 83.0 kB or 68% of the original size.

CSS Optimization

-62%

Potential reduce by 9.0 kB

  • Original 14.6 kB
  • After minification 13.2 kB
  • After compression 5.6 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. Jzabc.cn needs all CSS files to be minified and compressed as it can save up to 9.0 kB or 62% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (24%)

Requests Now

55

After Optimization

42

The browser has sent 55 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jzabc. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

jzabc.cn accessibility score

40

Accessibility Issues

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.

Impact

Issue

High

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

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

jzabc.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

SEO Factors

jzabc.cn SEO score

75

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

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](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

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jzabc.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 Jzabc.cn main page’s claimed encoding is gb2312. 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

Open Graph description is not detected on the main page of Jzabc. 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: