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dls.zzu.edu.cn screenshot

Report Summary

  • 60

    Performance

    Renders faster than
    76% of other websites

  • 35

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 50

    SEO

    Google-friendlier than
    18% of websites

dls.zzu.edu.cn

郑州大学远程教育学院

Page Load Speed

39.4 sec in total

First Response

15.7 sec

Resources Loaded

22.9 sec

Page Rendered

726 ms

dls.zzu.edu.cn screenshot

About Website

Click here to check amazing Dls Zzu content for China. Otherwise, check out these important facts you probably never knew about dls.zzu.edu.cn

2002年2月，经教育部批准，郑州大学成为国家开展现代远程教育的68所试点高校之一，是河南省惟一的试点学校。咨询电话：400-677-3059。

Visit dls.zzu.edu.cn

Key Findings

We analyzed Dls.zzu.edu.cn page load time and found that the first response time was 15.7 sec and then it took 23.7 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.

Performance Metrics

dls.zzu.edu.cn performance score

60

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

71/100

10%

LCP (Largest Contentful Paint)

Value6.9 s

6/100

25%

SI (Speed Index)

Value6.9 s

33/100

10%

TBT (Total Blocking Time)

Value300 ms

79/100

30%

CLS (Cumulative Layout Shift)

Value0.022

100/100

15%

TTI (Time to Interactive)

Value3.2 s

94/100

10%

Network Requests Diagram

dls.zzu.edu.cn

15692 ms

stytle.css

325 ms

_newslist.htm

340 ms

Counter.exe

6884 ms

Counter.exe

6905 ms

Our browser made a total of 28 requests to load all elements on the main page. We found that 93% of them (26 requests) were addressed to the original Dls.zzu.edu.cn, 7% (2 requests) were made to Zzu.edu.cn. The less responsive or slowest element that took the longest time to load (15.7 sec) belongs to the original domain Dls.zzu.edu.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 24.9 kB (80%)

Content Size

31.2 kB

After Optimization

6.3 kB

  • HTML

In fact, the total size of Dls.zzu.edu.cn main page is 31.2 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. 20% of websites need less resources to load. HTML takes 31.2 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 24.9 kB

  • Original 31.2 kB
  • After minification 27.3 kB
  • After compression 6.3 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 3.9 kB, which is 12% 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 24.9 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (19%)

Requests Now

27

After Optimization

22

  • AJAX
  • Images
  • CSS

The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dls Zzu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

dls.zzu.edu.cn

dls.zzu.edu.cn

15692 ms

stytle.css

stytle.css

325 ms

_newslist.htm

_newslist.htm

340 ms

Counter.exe

Counter.exe

6884 ms

Counter.exe

Counter.exe

6905 ms

ppa1.gif

ppa1.gif

641 ms

ppa2.gif

ppa2.gif

987 ms

ppb1.gif

ppb1.gif

666 ms

login.gif

login.gif

654 ms

zhuanti.jpg

zhuanti.jpg

991 ms

ppb5.gif

ppb5.gif

1038 ms

inaudi.png

inaudi.png

976 ms

beijing.gif

beijing.gif

1352 ms

touming.png

touming.png

998 ms

ppc2.gif

ppc2.gif

2054 ms

ppc3.gif

ppc3.gif

1347 ms

dixia.gif

dixia.gif

1349 ms

link.gif

link.gif

1355 ms

wenquan.png

wenquan.png

1404 ms

ppd1.gif

ppd1.gif

1678 ms

close.png

close.png

1680 ms

qrcode_s.png

qrcode_s.png

2600 ms

qrcodedingyue_s.png

qrcodedingyue_s.png

1686 ms

fuwuweixin.png

fuwuweixin.png

1739 ms

guanzhu.png

guanzhu.png

2024 ms

yujing120.gif

yujing120.gif

2025 ms

newslist6.gif

newslist6.gif

1719 ms

arr.gif

arr.gif

1794 ms

Accessibility Review

dls.zzu.edu.cn accessibility score

35

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.

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

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

Image elements do not have [alt] attributes

High

<input type="image"> elements do not have [alt] text

High

Form elements do not have associated labels

High

Links do not have a discernible name

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>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

dls.zzu.edu.cn best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

SEO Factors

dls.zzu.edu.cn SEO score

50

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

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 Dls.zzu.edu.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 Dls.zzu.edu.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

dls.zzu.edu.cn

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