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vaima.com.cn screenshot

Report Summary

  • 72

    Performance

    Renders faster than
    82% of other websites

  • 56

    Accessibility

    Visual factors better than
    that of 24% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

vaima.com.cn

江苏威马电源科技有限公司 3.6V锂亚电池 3.0V锂锰电池 三元锂离子电池

Page Load Speed

13.7 sec in total

First Response

2.1 sec

Resources Loaded

11.3 sec

Page Rendered

240 ms

vaima.com.cn screenshot

About Website

Visit vaima.com.cn now to see the best up-to-date Vaima content and also check out these interesting facts you probably never knew about vaima.com.cn

江苏威马电源科技有限公司,专业研发、生产、销售锂亚电池、锂锰电池、三元锂离子电池的高兴技术企业，欢迎来电洽谈！联系热线：0523-80463175，24小时热线：13728710587！

Visit vaima.com.cn

Key Findings

We analyzed Vaima.com.cn page load time and found that the first response time was 2.1 sec and then it took 11.6 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

vaima.com.cn performance score

72

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

85/100

10%

LCP (Largest Contentful Paint)

Value5.6 s

17/100

25%

SI (Speed Index)

Value6.3 s

41/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.01

100/100

15%

TTI (Time to Interactive)

Value2.0 s

99/100

10%

Network Requests Diagram

vaima.com.cn

2081 ms

lanmu1.css

1101 ms

vaima_index_contact.jpg

440 ms

vaima_index_liuyan.jpg

441 ms

vaima_index_map.jpg

449 ms

Our browser made a total of 40 requests to load all elements on the main page. We found that 98% of them (39 requests) were addressed to the original Vaima.com.cn, 3% (1 request) were made to Js.users.51.la. The less responsive or slowest element that took the longest time to load (9.5 sec) belongs to the original domain Vaima.com.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 29.8 kB (7%)

Content Size

422.7 kB

After Optimization

392.9 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Vaima.com.cn main page is 422.7 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. 15% of websites need less resources to load. Images take 386.7 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 24.7 kB

  • Original 30.2 kB
  • After minification 24.3 kB
  • After compression 5.6 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 6.0 kB, which is 20% 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 24.7 kB or 82% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 386.7 kB
  • After minification 386.7 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. Vaima images are well optimized though.

CSS Optimization

-89%

Potential reduce by 5.1 kB

  • Original 5.8 kB
  • After minification 4.7 kB
  • After compression 615 B

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. Vaima.com.cn needs all CSS files to be minified and compressed as it can save up to 5.1 kB or 89% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (13%)

Requests Now

39

After Optimization

34

  • Images
  • JavaScript
  • CSS

The browser has sent 39 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vaima. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

vaima.com.cn

vaima.com.cn

2081 ms

lanmu1.css

lanmu1.css

1101 ms

vaima_index_contact.jpg

vaima_index_contact.jpg

440 ms

vaima_index_liuyan.jpg

vaima_index_liuyan.jpg

441 ms

vaima_index_map.jpg

vaima_index_map.jpg

449 ms

vaima_index_logo.jpg

vaima_index_logo.jpg

2875 ms

vaima_index_logo1.jpg

vaima_index_logo1.jpg

1777 ms

vaima_index_rexian.jpg

vaima_index_rexian.jpg

671 ms

vaima_lanmu_SY1.jpg

vaima_lanmu_SY1.jpg

922 ms

vaima_lanmu_ab1.jpg

vaima_lanmu_ab1.jpg

1123 ms

vaima_lanmu_xw1.jpg

vaima_lanmu_xw1.jpg

1089 ms

vaima_lanmu_cp1.jpg

vaima_lanmu_cp1.jpg

1320 ms

vaima_lanmu_xz1.jpg

vaima_lanmu_xz1.jpg

1322 ms

vaima_lanmu_bk1.jpg

vaima_lanmu_bk1.jpg

1094 ms

vaima_lanmu_kf1.jpg

vaima_lanmu_kf1.jpg

1350 ms

vaima_lanmu_zp1.jpg

vaima_lanmu_zp1.jpg

1315 ms

vaima_lanmu_lx1.jpg

vaima_lanmu_lx1.jpg

1326 ms

vaima_banner_lanmu1.jpg

vaima_banner_lanmu1.jpg

3487 ms

vaima_banner_lanmu2.jpg

vaima_banner_lanmu2.jpg

1752 ms

vaima_banner_lanmu3.jpg

vaima_banner_lanmu3.jpg

1779 ms

vaima_banner_lanmu4.jpg

vaima_banner_lanmu4.jpg

1797 ms

vaima_dw.jpg

vaima_dw.jpg

2013 ms

vaima_yanfa.jpg

vaima_yanfa.jpg

1971 ms

vaima_jiagong.jpg

vaima_jiagong.jpg

2012 ms

vaima_index_about3.jpg

vaima_index_about3.jpg

1815 ms

vaima_index_about2.jpg

vaima_index_about2.jpg

1984 ms

vaima_index_about5.jpg

vaima_index_about5.jpg

2031 ms

vaima_index_news.jpg

vaima_index_news.jpg

3093 ms

vaima_news1.jpg

vaima_news1.jpg

2047 ms

vaima_fuwu1.jpg

vaima_fuwu1.jpg

2421 ms

vaima_fuwu2.jpg

vaima_fuwu2.jpg

2468 ms

vaima_fuwu3.jpg

vaima_fuwu3.jpg

2503 ms

vaima_fuwu4.jpg

vaima_fuwu4.jpg

9478 ms

vaima_index_2weima.jpg

vaima_index_2weima.jpg

2643 ms

20447327.js

20447327.js

538 ms

vaima_index_line.jpg

vaima_index_line.jpg

2455 ms

vaima_banner_n.jpg

vaima_banner_n.jpg

6442 ms

vaima_banner_lanmu.jpg

vaima_banner_lanmu.jpg

2631 ms

vaima_about.jpg

vaima_about.jpg

2674 ms

vaima_news.jpg

vaima_news.jpg

2851 ms

Accessibility Review

vaima.com.cn accessibility score

56

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

Links do not have a discernible name

Best Practices

vaima.com.cn best practices score

67

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

SEO Factors

vaima.com.cn SEO score

67

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

Image elements do not have [alt] attributes

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 Vaima.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 Vaima.com.cn 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

vaima.com.cn

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