Tools & Wizards About Us
dedecn.com screenshot

Report Summary

  • 95

    Performance

    Renders faster than
    93% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 77% of websites

  • 54

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

dedecn.com

德语德国网站——德语学习，德国信息交流专业门户网站

Page Load Speed

18.2 sec in total

First Response

339 ms

Resources Loaded

17.5 sec

Page Rendered

324 ms

dedecn.com screenshot

About Website

Click here to check amazing Dedecn content for China. Otherwise, check out these important facts you probably never knew about dedecn.com

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Key Findings

We analyzed Dedecn.com page load time and found that the first response time was 339 ms and then it took 17.8 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

dedecn.com performance score

95

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.3 s

99/100

10%

LCP (Largest Contentful Paint)

Value1.8 s

98/100

25%

SI (Speed Index)

Value2.3 s

98/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.157

74/100

15%

TTI (Time to Interactive)

Value3.1 s

95/100

10%

Network Requests Diagram

dedecn.com

339 ms

base.css

136 ms

index.css

139 ms

jquery-1.7.2.min.js

222 ms

stats

16098 ms

Our browser made a total of 22 requests to load all elements on the main page. We found that 95% of them (21 requests) were addressed to the original Dedecn.com, 5% (1 request) were made to Tajs.qq.com. The less responsive or slowest element that took the longest time to load (16.1 sec) relates to the external source Tajs.qq.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 140.0 kB (37%)

Content Size

379.1 kB

After Optimization

239.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dedecn.com main page is 379.1 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. 25% of websites need less resources to load. Images take 210.3 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 33.1 kB

  • Original 40.9 kB
  • After minification 35.1 kB
  • After compression 7.8 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 5.8 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 33.1 kB or 81% of the original size.

Image Optimization

-9%

Potential reduce by 19.2 kB

  • Original 210.3 kB
  • After minification 191.1 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. Dedecn images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 73.3 kB

  • Original 109.7 kB
  • After minification 102.4 kB
  • After compression 36.4 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 73.3 kB or 67% of the original size.

CSS Optimization

-79%

Potential reduce by 14.5 kB

  • Original 18.2 kB
  • After minification 13.7 kB
  • After compression 3.8 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. Dedecn.com needs all CSS files to be minified and compressed as it can save up to 14.5 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (24%)

Requests Now

21

After Optimization

16

  • Images
  • JavaScript
  • CSS

The browser has sent 21 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dedecn. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

dedecn.com

dedecn.com

339 ms

base.css

base.css

136 ms

index.css

index.css

139 ms

jquery-1.7.2.min.js

jquery-1.7.2.min.js

222 ms

stats

stats

16098 ms

jquery.xplaceholder.js

jquery.xplaceholder.js

142 ms

jquery.xtaber.js

jquery.xtaber.js

156 ms

jquery.xhover.js

jquery.xhover.js

158 ms

common.js

common.js

193 ms

logo.png

logo.png

78 ms

1_02151044021J4.jpg

1_02151044021J4.jpg

83 ms

1_0509225G953b.jpg

1_0509225G953b.jpg

147 ms

1_040312554b193.jpg

1_040312554b193.jpg

71 ms

1_0310001UM637.jpg

1_0310001UM637.jpg

74 ms

1_0302230234G95.jpg

1_0302230234G95.jpg

140 ms

main.png

main.png

139 ms

1-150Z1235451913.jpg

1-150Z1235451913.jpg

351 ms

1_100Q1250ca0.jpg

1_100Q1250ca0.jpg

152 ms

1_030R01242W43.jpg

1_030R01242W43.jpg

202 ms

defaultpic.gif

defaultpic.gif

213 ms

1_021211261C3c.jpg

1_021211261C3c.jpg

214 ms

1_022115121H003.jpg

1_022115121H003.jpg

215 ms

Accessibility Review

dedecn.com accessibility score

91

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.

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

dedecn.com best practices score

54

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

SEO Factors

dedecn.com SEO score

77

Search Engine Optimization Advices

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 Dedecn.com 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 Dedecn.com 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

dedecn.com

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