Tools & Wizards About Us
czshuangjie.com screenshot

Report Summary

  • 45

    Performance

    Renders faster than
    64% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

czshuangjie.com

步进电机_步进驱动器_步进电机驱动器_常州双杰电子有限公司

Page Load Speed

44.3 sec in total

First Response

2.5 sec

Resources Loaded

41.4 sec

Page Rendered

430 ms

czshuangjie.com screenshot

About Website

Visit czshuangjie.com now to see the best up-to-date Czshuangjie content for China and also check out these interesting facts you probably never knew about czshuangjie.com

步进电机专家，常州双杰电子有限公司专业生产步进电机驱动器及相关配套的步进电机，有三个系列几十个品种，并提供整个系统控制方案，电机选型和关于电机控制的技术支持，承接电机控制系统的软硬件开发。

Visit czshuangjie.com

Key Findings

We analyzed Czshuangjie.com page load time and found that the first response time was 2.5 sec and then it took 41.8 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 27 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

czshuangjie.com performance score

45

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.2 s

1/100

10%

LCP (Largest Contentful Paint)

Value12.1 s

0/100

25%

SI (Speed Index)

Value15.0 s

1/100

10%

TBT (Total Blocking Time)

Value140 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value12.1 s

16/100

10%

Network Requests Diagram

czshuangjie.com

2498 ms

www.czshuangjie.com

9584 ms

honet_sxy.css

1639 ms

jquery.jslide.css

922 ms

jquery-1.8.0.min.js

9878 ms

Our browser made a total of 47 requests to load all elements on the main page. We found that 91% of them (43 requests) were addressed to the original Czshuangjie.com, 6% (3 requests) were made to Pub.idqqimg.com and 2% (1 request) were made to Img.im.alisoft.com. The less responsive or slowest element that took the longest time to load (19.9 sec) belongs to the original domain Czshuangjie.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 30.1 kB (40%)

Content Size

75.7 kB

After Optimization

45.6 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Czshuangjie.com main page is 75.7 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. Images take 45.3 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 21.1 kB

  • Original 27.4 kB
  • After minification 24.7 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. 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 21.1 kB or 77% of the original size.

Image Optimization

-15%

Potential reduce by 6.8 kB

  • Original 45.3 kB
  • After minification 38.5 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. Obviously, Czshuangjie needs image optimization as it can save up to 6.8 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-72%

Potential reduce by 2.1 kB

  • Original 3.0 kB
  • After minification 2.2 kB
  • After compression 827 B

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 2.1 kB or 72% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

18

After Optimization

18

  • Images
  • JavaScript
  • CSS

The browser has sent 18 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Czshuangjie. According to our analytics all requests are already optimized.

Network Requests Diagram

czshuangjie.com

czshuangjie.com

2498 ms

www.czshuangjie.com

www.czshuangjie.com

9584 ms

honet_sxy.css

honet_sxy.css

1639 ms

jquery.jslide.css

jquery.jslide.css

922 ms

jquery-1.8.0.min.js

jquery-1.8.0.min.js

9878 ms

jquery.jslides.js

jquery.jslides.js

2969 ms

default.css

default.css

986 ms

qqkf.js

qqkf.js

1485 ms

bg.jpg

bg.jpg

462 ms

en.jpg

en.jpg

476 ms

201508011049325154.jpg

201508011049325154.jpg

3187 ms

tel.png

tel.png

587 ms

line.gif

line.gif

1193 ms

go.jpg

go.jpg

19860 ms

b1.jpg

b1.jpg

19859 ms

01.jpg

01.jpg

19860 ms

02.jpg

02.jpg

19859 ms

03.jpg

03.jpg

19860 ms

201509161516067958.jpg

201509161516067958.jpg

6342 ms

201509161523392022.jpg

201509161523392022.jpg

9279 ms

p666.jpg

p666.jpg

15315 ms

p86.jpg

p86.jpg

19858 ms

p15.jpg

p15.jpg

19858 ms

p3.jpg

p3.jpg

19858 ms

p67.jpg

p67.jpg

19858 ms

p66.jpg

p66.jpg

19858 ms

p89.jpg

p89.jpg

19859 ms

201508011413284553.jpg

201508011413284553.jpg

19860 ms

201508011413512240.jpg

201508011413512240.jpg

19859 ms

201508011414053059.jpg

201508011414053059.jpg

19860 ms

icon_person_stat_online.gif

icon_person_stat_online.gif

19859 ms

a1.png

a1.png

19820 ms

a2.png

a2.png

19820 ms

a3.png

a3.png

19821 ms

a4.png

a4.png

19821 ms

advimg.jpg

advimg.jpg

19820 ms

yellow.jpg

yellow.jpg

19821 ms

arrows.gif

arrows.gif

19820 ms

foot.jpg

foot.jpg

19777 ms

cslist_top_bg.gif

cslist_top_bg.gif

19774 ms

cslist_top_shut.gif

cslist_top_shut.gif

19775 ms

cslist_mid_bg.gif

cslist_mid_bg.gif

19775 ms

cslist_btm_bg.gif

cslist_btm_bg.gif

19774 ms

offline.gif

offline.gif

769 ms

button_71.gif

button_71.gif

147 ms

button_71.gif

button_71.gif

143 ms

button_71.gif

button_71.gif

152 ms

Accessibility Review

czshuangjie.com accessibility score

74

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

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

czshuangjie.com best practices score

58

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

czshuangjie.com SEO score

83

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Czshuangjie.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 Czshuangjie.com main page’s claimed encoding is gb2312. 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

czshuangjie.com

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