Tools & Wizards About Us
emcstudy.net screenshot

Report Summary

  • 72

    Performance

    Renders faster than
    82% of other websites

  • 67

    Accessibility

    Visual factors better than
    that of 32% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

emcstudy.net

电磁兼容小小家 - Powered by Discuz!

Page Load Speed

72.9 sec in total

First Response

10.7 sec

Resources Loaded

59.8 sec

Page Rendered

2.4 sec

emcstudy.net screenshot

About Website

Visit emcstudy.net now to see the best up-to-date Emcstudy content and also check out these interesting facts you probably never knew about emcstudy.net

创立于2004年的专业电磁兼容网站，为您提供技术探讨、文献下载以及电磁兼容设计专业服务

Visit emcstudy.net

Key Findings

We analyzed Emcstudy.net page load time and found that the first response time was 10.7 sec and then it took 62.2 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 2 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

emcstudy.net performance score

72

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

71/100

10%

LCP (Largest Contentful Paint)

Value4.8 s

30/100

25%

SI (Speed Index)

Value7.3 s

28/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.031

100/100

15%

TTI (Time to Interactive)

Value2.4 s

98/100

10%

Network Requests Diagram

forum.php

10656 ms

style_1_common.css

20139 ms

style_1_forum_index.css

11211 ms

common.js

16253 ms

style_1_widthauto.css

12134 ms

Our browser made a total of 33 requests to load all elements on the main page. We found that 70% of them (23 requests) were addressed to the original Emcstudy.net, 9% (3 requests) were made to Tcss.qq.com and 3% (1 request) were made to Discuz.gtimg.cn. The less responsive or slowest element that took the longest time to load (20.1 sec) belongs to the original domain Emcstudy.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 15.0 kB (64%)

Content Size

23.4 kB

After Optimization

8.5 kB

  • HTML
  • JavaScript

In fact, the total size of Emcstudy.net main page is 23.4 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. Only 10% of websites need less resources to load. HTML takes 17.3 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 12.0 kB

  • Original 17.3 kB
  • After minification 17.2 kB
  • After compression 5.2 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 12.0 kB or 70% of the original size.

JavaScript Optimization

-48%

Potential reduce by 2.9 kB

  • Original 6.2 kB
  • After minification 6.0 kB
  • After compression 3.2 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 2.9 kB or 48% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (50%)

Requests Now

26

After Optimization

13

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Emcstudy. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

forum.php

forum.php

10656 ms

style_1_common.css

style_1_common.css

20139 ms

style_1_forum_index.css

style_1_forum_index.css

11211 ms

common.js

common.js

16253 ms

style_1_widthauto.css

style_1_widthauto.css

12134 ms

forum.js

forum.js

13818 ms

logging.js

logging.js

12135 ms

ping.js

ping.js

493 ms

discuz_tips.js

discuz_tips.js

511 ms

logo.gif

logo.gif

1311 ms

logo.png

logo.png

5891 ms

qq_login.gif

qq_login.gif

1725 ms

wechat_login.png

wechat_login.png

4332 ms

collapsed_no.gif

collapsed_no.gif

2115 ms

forum.gif

forum.gif

19997 ms

logo.gif

logo.gif

6343 ms

baishutang.gif

baishutang.gif

11633 ms

3ctest.jpg

3ctest.jpg

11664 ms

ad_close.gif

ad_close.gif

5521 ms

plugin.php

plugin.php

7126 ms

site_qq.jpg

site_qq.jpg

7501 ms

chart.png

chart.png

7513 ms

category_lbg.png

category_lbg.png

8166 ms

tb.png

tb.png

8541 ms

dot.gif

dot.gif

10322 ms

connect.php

connect.php

17239 ms

toss_11.gif

toss_11.gif

228 ms

NTUzMjc4NzA=.js

NTUzMjc4NzA=.js

519 ms

z_stat.php

z_stat.php

1174 ms

stat.htm

stat.htm

172 ms

core.php

core.php

790 ms

9.gif

9.gif

4971 ms

app.gif

app.gif

1000 ms

Accessibility Review

emcstudy.net accessibility score

67

Accessibility Issues

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

emcstudy.net best practices score

58

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

High

Browser errors were logged to the console

SEO Factors

emcstudy.net 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

    GBK

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Emcstudy.net 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 Emcstudy.net main page’s claimed encoding is gbk. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

emcstudy.net

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