Tools & Wizards About Us
zzedu.net.cn screenshot

Report Summary

  • 48

    Performance

    Renders faster than
    66% of other websites

  • 54

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

zzedu.net.cn

郑州教育信息网

Page Load Speed

35.7 sec in total

First Response

7.2 sec

Resources Loaded

28.1 sec

Page Rendered

459 ms

zzedu.net.cn screenshot

About Website

Click here to check amazing Zzedu content for China. Otherwise, check out these important facts you probably never knew about zzedu.net.cn

郑州教育信息网(www.zzedu.net.cn)是由郑州市教育局主办、郑州市现代教育信息技术中心负责建设和管理，服务于全市教育行政部门、学校和广大师生的综合性网络服务平台。

Visit zzedu.net.cn

Key Findings

We analyzed Zzedu.net.cn page load time and found that the first response time was 7.2 sec and then it took 28.5 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 was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

zzedu.net.cn performance score

48

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

25/100

10%

LCP (Largest Contentful Paint)

Value21.0 s

0/100

25%

SI (Speed Index)

Value8.2 s

20/100

10%

TBT (Total Blocking Time)

Value150 ms

94/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value16.8 s

5/100

10%

Network Requests Diagram

zzedu.net.cn

7204 ms

pc_style.css

956 ms

jquery.min.js

1944 ms

jquery.SuperSlide.2.1.1.js

240 ms

jquery.movebg.js

241 ms

Our browser made a total of 87 requests to load all elements on the main page. We found that 46% of them (40 requests) were addressed to the original Zzedu.net.cn, 46% (40 requests) were made to Img.zzedu.net.cn and 2% (2 requests) were made to Interact.zzedu.net.cn. The less responsive or slowest element that took the longest time to load (19.6 sec) relates to the external source Dcs.conac.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 520.4 kB (15%)

Content Size

3.5 MB

After Optimization

3.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zzedu.net.cn main page is 3.5 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. 35% of websites need less resources to load. Images take 3.1 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 103.2 kB

  • Original 126.8 kB
  • After minification 105.4 kB
  • After compression 23.6 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 21.4 kB, which is 17% 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 103.2 kB or 81% of the original size.

Image Optimization

-9%

Potential reduce by 280.9 kB

  • Original 3.1 MB
  • After minification 2.8 MB

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. Zzedu images are well optimized though.

JavaScript Optimization

-42%

Potential reduce by 106.6 kB

  • Original 254.0 kB
  • After minification 248.8 kB
  • After compression 147.4 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 106.6 kB or 42% of the original size.

CSS Optimization

-84%

Potential reduce by 29.7 kB

  • Original 35.2 kB
  • After minification 27.7 kB
  • After compression 5.5 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. Zzedu.net.cn needs all CSS files to be minified and compressed as it can save up to 29.7 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (12%)

Requests Now

84

After Optimization

74

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 84 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zzedu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

zzedu.net.cn

zzedu.net.cn

7204 ms

pc_style.css

pc_style.css

956 ms

jquery.min.js

jquery.min.js

1944 ms

jquery.SuperSlide.2.1.1.js

jquery.SuperSlide.2.1.1.js

240 ms

jquery.movebg.js

jquery.movebg.js

241 ms

index2022.js

index2022.js

565 ms

jweixin-1.2.0.js

jweixin-1.2.0.js

515 ms

weixin

weixin

1490 ms

bfreeTools.js

bfreeTools.js

480 ms

stat.js

stat.js

1733 ms

3912806.jpg

3912806.jpg

2485 ms

3886112_110x138c.png

3886112_110x138c.png

970 ms

3884838_110x138c.png

3884838_110x138c.png

1455 ms

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3883626_110x138c.jpg

1447 ms

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1691 ms

xyzz.jpg

xyzz.jpg

1455 ms

henanjubao.jpg

henanjubao.jpg

1453 ms

zgpy.png

zgpy.png

1694 ms

user01.png

user01.png

427 ms

yun.png

yun.png

429 ms

pgdn.png

pgdn.png

431 ms

wap1.png

wap1.png

484 ms

logo.jpg

logo.jpg

902 ms

jiantoulan.jpg

jiantoulan.jpg

668 ms

jianleft.jpg

jianleft.jpg

668 ms

gdzt.gif

gdzt.gif

672 ms

jiantouR.png

jiantouR.png

725 ms

ind_bom_icon02.png

ind_bom_icon02.png

755 ms

ind_bom_icon022.png

ind_bom_icon022.png

906 ms

toTop.jpg

toTop.jpg

907 ms

3783047.jpg

3783047.jpg

3212 ms

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3790632.jpg

3681 ms

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3916510.jpg

3201 ms

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3202 ms

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3446 ms

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6590 ms

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7117 ms

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4641 ms

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3927425.jpg

5404 ms

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3928246.jpg

7104 ms

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3927458.jpg

6555 ms

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3929904.png

10191 ms

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9307 ms

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4950 ms

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7584 ms

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4491 ms

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4492 ms

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4495 ms

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4496 ms

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4730 ms

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4733 ms

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4737 ms

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4738 ms

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4970 ms

3913438.jpg

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6795 ms

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5451 ms

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5941 ms

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5223 ms

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5432 ms

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5924 ms

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6827 ms

3764747.jpg

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7035 ms

3758706.jpg

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7312 ms

3893531.jpg

3893531.jpg

7516 ms

3791372.jpg

3791372.jpg

7342 ms

ssoclient2023.js

ssoclient2023.js

1172 ms

serach.png

serach.png

817 ms

bai.png

bai.png

871 ms

lanjiantouxia.jpg

lanjiantouxia.jpg

902 ms

zwshuxian.jpg

zwshuxian.jpg

1043 ms

linkdown.jpg

linkdown.jpg

1012 ms

icon02.jpg

icon02.jpg

1014 ms

CA172510000409073400001.js

CA172510000409073400001.js

19644 ms

zzedusso2023.min.js

zzedusso2023.min.js

1201 ms

openid-configuration

openid-configuration

1112 ms

3929927.png

3929927.png

5123 ms

3899559.jpg

3899559.jpg

4361 ms

3833203.jpg

3833203.jpg

4391 ms

userStatus.html

userStatus.html

221 ms

user01.png

user01.png

1458 ms

loading24.gif

loading24.gif

247 ms

zzjyapi

zzjyapi

412 ms

zzjyapi

zzjyapi

489 ms

zzjyapi

zzjyapi

419 ms

zzjyapi

zzjyapi

414 ms

hm.js

hm.js

974 ms

lan.png

lan.png

244 ms

Accessibility Review

zzedu.net.cn accessibility score

54

Accessibility Issues

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.

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

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.

Impact

Issue

High

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

Best Practices

zzedu.net.cn best practices score

50

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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

zzedu.net.cn SEO score

82

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zzedu.net.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 Zzedu.net.cn main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

zzedu.net.cn

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