Tools & Wizards About Us
voasun.com screenshot

Report Summary

  • 29

    Performance

    Renders faster than
    49% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

voasun.com

深圳市华桑电子有限公司_ALPS代理_KEL代理_电位器_编码器_位置传感器_极细同轴电缆连接器_LED灯珠_碳化硅功率器件_霍尔器件

Page Load Speed

19.2 sec in total

First Response

673 ms

Resources Loaded

18.1 sec

Page Rendered

369 ms

voasun.com screenshot

About Website

Click here to check amazing Voasun content. Otherwise, check out these important facts you probably never knew about voasun.com

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Visit voasun.com

Key Findings

We analyzed Voasun.com page load time and found that the first response time was 673 ms and then it took 18.5 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.

Performance Metrics

voasun.com performance score

29

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

33/100

10%

LCP (Largest Contentful Paint)

Value5.9 s

14/100

25%

SI (Speed Index)

Value12.8 s

2/100

10%

TBT (Total Blocking Time)

Value1,260 ms

19/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value11.8 s

17/100

10%

Network Requests Diagram

voasun.com

673 ms

www.voasun.com

1102 ms

animate.min.css

215 ms

swiper.min.css

428 ms

style.css

642 ms

Our browser made a total of 58 requests to load all elements on the main page. We found that 93% of them (54 requests) were addressed to the original Voasun.com, 3% (2 requests) were made to Hm.baidu.com and 2% (1 request) were made to Goutong.baidu.com. The less responsive or slowest element that took the longest time to load (15.4 sec) belongs to the original domain Voasun.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 206.3 kB (7%)

Content Size

2.9 MB

After Optimization

2.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Voasun.com main page is 2.9 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. 50% of websites need less resources to load. Images take 2.6 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 36.9 kB

  • Original 45.2 kB
  • After minification 31.6 kB
  • After compression 8.3 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. This page needs HTML code to be minified as it can gain 13.5 kB, which is 30% 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 36.9 kB or 82% of the original size.

Image Optimization

-3%

Potential reduce by 82.2 kB

  • Original 2.6 MB
  • After minification 2.5 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. Voasun images are well optimized though.

JavaScript Optimization

-27%

Potential reduce by 81.6 kB

  • Original 299.3 kB
  • After minification 296.9 kB
  • After compression 217.8 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 81.6 kB or 27% of the original size.

CSS Optimization

-27%

Potential reduce by 5.7 kB

  • Original 20.7 kB
  • After minification 20.7 kB
  • After compression 15.0 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. Voasun.com needs all CSS files to be minified and compressed as it can save up to 5.7 kB or 27% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (18%)

Requests Now

56

After Optimization

46

  • Images
  • JavaScript
  • CSS

The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Voasun. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

voasun.com

voasun.com

673 ms

www.voasun.com

www.voasun.com

1102 ms

animate.min.css

animate.min.css

215 ms

swiper.min.css

swiper.min.css

428 ms

style.css

style.css

642 ms

zhuyingpinpai.css

zhuyingpinpai.css

647 ms

jquery.min.js

jquery.min.js

866 ms

swiper.min.js

swiper.min.js

879 ms

wow.min.js

wow.min.js

652 ms

js.js

js.js

653 ms

jquery.kxbdMarquee.js

jquery.kxbdMarquee.js

854 ms

voasunlogo.png

voasunlogo.png

427 ms

tel.jpg

tel.jpg

219 ms

line.jpg

line.jpg

218 ms

banner01.jpg

banner01.jpg

862 ms

banner02.jpg

banner02.jpg

650 ms

banner03.jpg

banner03.jpg

1076 ms

cptit.jpg

cptit.jpg

434 ms

cpfl.jpg

cpfl.jpg

436 ms

1-23110G1303XE.jpg

1-23110G1303XE.jpg

640 ms

1-230HG41U70-L.jpg

1-230HG41U70-L.jpg

652 ms

1-230HG336280-L.jpg

1-230HG336280-L.jpg

653 ms

1-230P11321060-L.jpg

1-230P11321060-L.jpg

852 ms

1-230P11102440-L.jpg

1-230P11102440-L.jpg

866 ms

1-230HG340030-L.jpg

1-230HG340030-L.jpg

868 ms

1-230HQ020240-L.jpg

1-230HQ020240-L.jpg

871 ms

1-230I11044190-L.jpg

1-230I11044190-L.jpg

1066 ms

1-23110G04U0392.jpg

1-23110G04U0392.jpg

1077 ms

1.jpg

1.jpg

1083 ms

2.jpg

2.jpg

1302 ms

3.jpg

3.jpg

1306 ms

4.jpg

4.jpg

1278 ms

5.jpg

5.jpg

1290 ms

6.jpg

6.jpg

1293 ms

7.jpg

7.jpg

1300 ms

8.jpg

8.jpg

1492 ms

9.jpg

9.jpg

1506 ms

10.jpg

10.jpg

1509 ms

rzbg.jpg

rzbg.jpg

1732 ms

cptit.png

cptit.png

1518 ms

rzico.png

rzico.png

1523 ms

rztel.png

rztel.png

1704 ms

zjtit.jpg

zjtit.jpg

1720 ms

contact-1.jpg

contact-1.jpg

4426 ms

1-240604092K70-L.jpg

1-240604092K70-L.jpg

15413 ms

flico.jpg

flico.jpg

1741 ms

hm.js

hm.js

960 ms

1-240320144A30-L.jpg

1-240320144A30-L.jpg

2421 ms

1-230P31144590-L.png

1-230P31144590-L.png

1721 ms

weixin.png

weixin.png

3251 ms

kefu.png

kefu.png

1536 ms

lianxi.png

lianxi.png

1720 ms

erweima.png

erweima.png

1744 ms

jt-1.png

jt-1.png

1730 ms

huidaodingbu.png

huidaodingbu.png

1748 ms

hm.gif

hm.gif

298 ms

b.js

b.js

2492 ms

affim.js

affim.js

1891 ms

Accessibility Review

voasun.com accessibility score

79

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

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

voasun.com best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

voasun.com SEO score

83

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

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

    ZH

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Voasun.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it matches the claimed language. Our system also found out that Voasun.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

voasun.com

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