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

Report Summary

  • 65

    Performance

    Renders faster than
    79% 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

semi.cena.com.cn

半导体 - 电子信息产业网

Page Load Speed

81.8 sec in total

First Response

14.9 sec

Resources Loaded

66.3 sec

Page Rendered

592 ms

semi.cena.com.cn screenshot

About Website

Visit semi.cena.com.cn now to see the best up-to-date Semi Cena content for China and also check out these interesting facts you probably never knew about semi.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 semi.cena.com.cn

Key Findings

We analyzed Semi.cena.com.cn page load time and found that the first response time was 14.9 sec and then it took 66.9 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 15 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

semi.cena.com.cn performance score

65

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

30/100

10%

LCP (Largest Contentful Paint)

Value3.7 s

59/100

25%

SI (Speed Index)

Value8.7 s

16/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value14.6 s

8/100

10%

Network Requests Diagram

semi.cena.com.cn

14887 ms

ce63.css

1506 ms

jquery-1.7.min.js

20287 ms

pictransform2.js

4173 ms

AC_RunActiveContent.js

4169 ms

Our browser made a total of 60 requests to load all elements on the main page. We found that 47% of them (28 requests) were addressed to the original Semi.cena.com.cn, 28% (17 requests) were made to Cena.com.cn and 5% (3 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (20.3 sec) relates to the external source Cena.com.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 175.8 kB (13%)

Content Size

1.3 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Semi.cena.com.cn main page is 1.3 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 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 39.2 kB

  • Original 57.3 kB
  • After minification 57.0 kB
  • After compression 18.2 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 39.2 kB or 68% of the original size.

Image Optimization

-8%

Potential reduce by 102.3 kB

  • Original 1.2 MB
  • After minification 1.1 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. Semi Cena images are well optimized though.

JavaScript Optimization

-74%

Potential reduce by 24.7 kB

  • Original 33.6 kB
  • After minification 24.9 kB
  • After compression 8.9 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 24.7 kB or 74% 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. Semi.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 21 (48%)

Requests Now

44

After Optimization

23

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Semi 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 10 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

semi.cena.com.cn

semi.cena.com.cn

14887 ms

ce63.css

ce63.css

1506 ms

jquery-1.7.min.js

jquery-1.7.min.js

20287 ms

pictransform2.js

pictransform2.js

4173 ms

AC_RunActiveContent.js

AC_RunActiveContent.js

4169 ms

abceffgh.js

abceffgh.js

1984 ms

node_482.htm

node_482.htm

704 ms

ce05.gif

ce05.gif

1772 ms

cn_61.gif

cn_61.gif

789 ms

node_1114.htm

node_1114.htm

1725 ms

node_481.htm

node_481.htm

19813 ms

ce42.gif

ce42.gif

5412 ms

ce04.gif

ce04.gif

19964 ms

ce29.gif

ce29.gif

1964 ms

y_4.gif

y_4.gif

985 ms

ce14.gif

ce14.gif

1310 ms

cn_62.gif

cn_62.gif

875 ms

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0019211d110e1848be6320.jpg

6803 ms

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3697 ms

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8626 ms

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19958 ms

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19957 ms

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3163 ms

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4323 ms

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4630 ms

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10930 ms

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6437 ms

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11129 ms

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19956 ms

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19958 ms

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0019214f1f5814bb45a409.JPG

17769 ms

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15593 ms

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17335 ms

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19957 ms

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19957 ms

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19960 ms

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19960 ms

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0019214f1f5814c01ab807.jpg

19960 ms

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19960 ms

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19960 ms

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0019214218881476433312.jpg

19961 ms

iplookup.php

iplookup.php

853 ms

abceffg.js

abceffg.js

358 ms

ce16.gif

ce16.gif

978 ms

B9589867.130180756;sz=980x70;click=;ord=[timestamp];dc_lat=;dc_rdid=;tag_for_child_directed_treatment=

B9589867.130180756;sz=980x70;click=;ord=[timestamp];dc_lat=;dc_rdid=;tag_for_child_directed_treatment=

68 ms

980x70_Scotch-Weld_CN.jpg

980x70_Scotch-Weld_CN.jpg

72 ms

lidar.js

lidar.js

34 ms

sbhK2lTE.js

sbhK2lTE.js

15 ms

cTrvNaRi.html

cTrvNaRi.html

27 ms

j6SDDiQit5YY48GNgPpnCluJgoNCzbKlh5o6eVjReZI.js

j6SDDiQit5YY48GNgPpnCluJgoNCzbKlh5o6eVjReZI.js

39 ms

activeview

activeview

18 ms

h.js

h.js

708 ms

21.gif

21.gif

867 ms

hm.gif

hm.gif

350 ms

110.gif

110.gif

20155 ms

25221AAL3.gif

25221AAL3.gif

2047 ms

b01.gif

b01.gif

679 ms

30095U211E.gif

30095U211E.gif

786 ms

b005.gif

b005.gif

4377 ms

net.china.cn.gif

net.china.cn.gif

2048 ms

Accessibility Review

semi.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

semi.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

semi.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 Semi.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 Semi.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

semi.cena.com.cn

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