Tools & Wizards About Us
yjs.cena.com.cn screenshot

Report Summary

  • 61

    Performance

    Renders faster than
    76% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

yjs.cena.com.cn

软件服务 - 电子信息产业网

Page Load Speed

14.4 sec in total

First Response

1.4 sec

Resources Loaded

12.6 sec

Page Rendered

327 ms

yjs.cena.com.cn screenshot

About Website

Click here to check amazing Yjs Cena content for China. Otherwise, check out these important facts you probably never knew about yjs.cena.com.cn

电子信息产业网是电子信息产业权威门户网站，创建于1999年。目前设有半导体、智能终端、家用电器、LED、新能源、云计算、移动互联、产品评测等频道，提供最具公信力的产业资讯、企业动态、新技术发布，展会专题、信息搜索、专家访谈等内容，充分展现出电子行业新媒体的“宽度”(海量信息)、“速度”和互动度。

Visit yjs.cena.com.cn

Key Findings

We analyzed Yjs.cena.com.cn page load time and found that the first response time was 1.4 sec and then it took 12.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

yjs.cena.com.cn performance score

61

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

21/100

10%

LCP (Largest Contentful Paint)

Value4.1 s

46/100

25%

SI (Speed Index)

Value9.9 s

10/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value14.5 s

9/100

10%

Network Requests Diagram

yjs.cena.com.cn

1432 ms

ce63.css

1303 ms

jquery-1.7.min.js

3023 ms

pictransform2.js

785 ms

abceffgh.js

1973 ms

Our browser made a total of 47 requests to load all elements on the main page. We found that 45% of them (21 requests) were addressed to the original Yjs.cena.com.cn, 38% (18 requests) were made to Cena.com.cn and 4% (2 requests) were made to 0. The less responsive or slowest element that took the longest time to load (3.4 sec) belongs to the original domain Yjs.cena.com.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 149.0 kB (19%)

Content Size

787.5 kB

After Optimization

638.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Yjs.cena.com.cn main page is 787.5 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. Images take 622.2 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 27.0 kB

  • Original 39.1 kB
  • After minification 38.8 kB
  • After compression 12.1 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 27.0 kB or 69% of the original size.

Image Optimization

-6%

Potential reduce by 37.1 kB

  • Original 622.2 kB
  • After minification 585.1 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. Yjs Cena images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 75.3 kB

  • Original 113.8 kB
  • After minification 108.2 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 75.3 kB or 66% of the original size.

CSS Optimization

-78%

Potential reduce by 9.6 kB

  • Original 12.4 kB
  • After minification 11.6 kB
  • After compression 2.8 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. Yjs.cena.com.cn needs all CSS files to be minified and compressed as it can save up to 9.6 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (37%)

Requests Now

46

After Optimization

29

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 46 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Yjs Cena. 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

yjs.cena.com.cn

yjs.cena.com.cn

1432 ms

ce63.css

ce63.css

1303 ms

jquery-1.7.min.js

jquery-1.7.min.js

3023 ms

pictransform2.js

pictransform2.js

785 ms

abceffgh.js

abceffgh.js

1973 ms

node_482.htm

node_482.htm

282 ms

ce05.gif

ce05.gif

228 ms

cn_61.gif

cn_61.gif

783 ms

node_481.htm

node_481.htm

551 ms

ce32.gif

ce32.gif

546 ms

ce04.gif

ce04.gif

454 ms

ce29.gif

ce29.gif

518 ms

y_4.gif

y_4.gif

545 ms

ce14.gif

ce14.gif

545 ms

ce13.gif

ce13.gif

680 ms

cn_62.gif

cn_62.gif

850 ms

0019211c3e4f176205e803.jpg

0019211c3e4f176205e803.jpg

1354 ms

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0019211c3e4f1761d27202.jpg

1485 ms

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0019211c3e4f1758b69b01.jpg

1529 ms

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0019211c3e4f17578d6901.JPG

1562 ms

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0019211c3e4f1747b3c001.jpg

1366 ms

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0026c6c8387416c6226201.jpg

1062 ms

0026c6c838741696ca6f01.jpg

0026c6c838741696ca6f01.jpg

2649 ms

0026c6c8387416bbb64301.jpg

0026c6c8387416bbb64301.jpg

3150 ms

0026c6c93e7e172a9a9c1d.jpg

0026c6c93e7e172a9a9c1d.jpg

2410 ms

00262df7379c142f126c04.jpg

00262df7379c142f126c04.jpg

1941 ms

0019211c3e4f15fb209201.jpg

0019211c3e4f15fb209201.jpg

1986 ms

7458748924055602627.jpg

7458748924055602627.jpg

2350 ms

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8c705ac3d98c15e946bc02.jpg

2392 ms

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2440 ms

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2855 ms

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2870 ms

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0019211c3e4f15f9cdc403.JPG

2911 ms

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0019211c3e4f15fdcb4d0e.jpg

2668 ms

0019211c3e4f1622b1a905.jpg

0019211c3e4f1622b1a905.jpg

3403 ms

iplookup.php

iplookup.php

2164 ms

abceffg.js

abceffg.js

1245 ms

ce16.gif

ce16.gif

525 ms

110.gif

110.gif

769 ms

25221AAL3.gif

25221AAL3.gif

263 ms

b01.gif

b01.gif

1065 ms

30095U211E.gif

30095U211E.gif

265 ms

b005.gif

b005.gif

373 ms

net.china.cn.gif

net.china.cn.gif

491 ms

h.js

h.js

566 ms

21.gif

21.gif

721 ms

hm.gif

hm.gif

280 ms

Accessibility Review

yjs.cena.com.cn accessibility score

68

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

Links do not have a discernible name

Best Practices

yjs.cena.com.cn best practices score

67

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

SEO Factors

yjs.cena.com.cn SEO score

62

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 Yjs.cena.com.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 Yjs.cena.com.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

yjs.cena.com.cn

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