Tools & Wizards About Us

Report Summary

  • 32

    Performance

    Renders faster than
    52% of other websites

  • 61

    Accessibility

    Visual factors better than
    that of 27% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 54

    SEO

    Google-friendlier than
    19% of websites

vtron.com

VTRON威创股份--控制室解决方案专家-专注于控制室解决方案的国内第一家上市公司，国家火炬计划重点高新技术企业、全国首批创新型企业，主营拼接显示单元、处理器、软件、可视化解决方案等产品，应用于指挥调度控制中心等，便于用户集中管理和监察各种业务数据和信息，及时做出业务决策，处置应急事件。业务范围遍布...

Page Load Speed

72.7 sec in total

First Response

729 ms

Resources Loaded

71.7 sec

Page Rendered

243 ms

About Website

Visit vtron.com now to see the best up-to-date Vtron content for United States and also check out these interesting facts you probably never knew about vtron.com

专注于控制室解决方案的国内第一家上市公司，国家火炬计划重点高新技术企业、全国首批创新型企业，主营拼接显示单元、处理器、软件、可视化解决方案等产品，应用于指挥调度控制中心等，便于用户集中管理和监察各种业务数据和信息，及时做出业务决策，处置应急事件。业务范围遍布50多个国家和地区，累计已在全球成功实施了超过15500个项目。

Visit vtron.com

Key Findings

We analyzed Vtron.com page load time and found that the first response time was 729 ms and then it took 72 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there were 6 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

vtron.com performance score

32

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.6 s

2/100

10%

LCP (Largest Contentful Paint)

Value11.3 s

0/100

25%

SI (Speed Index)

Value21.3 s

0/100

10%

TBT (Total Blocking Time)

Value100 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.614

10/100

15%

TTI (Time to Interactive)

Value14.8 s

8/100

10%

Network Requests Diagram

vtron.com

729 ms

www.vtron.com.cn

6638 ms

index.css

1435 ms

layout.css

2163 ms

layout_rey.css

1459 ms

Our browser made a total of 308 requests to load all elements on the main page. We found that 0% of them (1 request) were addressed to the original Vtron.com, 99% (304 requests) were made to Vtron.com.cn and 1% (2 requests) were made to Hm.baidu.com. The less responsive or slowest element that took the longest time to load (20.3 sec) relates to the external source Vtron.com.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.5 MB (10%)

Content Size

26.0 MB

After Optimization

23.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vtron.com main page is 26.0 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 25.3 MB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 539.3 kB

  • Original 596.4 kB
  • After minification 252.0 kB
  • After compression 57.0 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 344.4 kB, which is 58% 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 539.3 kB or 90% of the original size.

Image Optimization

-8%

Potential reduce by 1.9 MB

  • Original 25.3 MB
  • After minification 23.3 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. Vtron images are well optimized though.

JavaScript Optimization

-15%

Potential reduce by 9.3 kB

  • Original 61.5 kB
  • After minification 61.5 kB
  • After compression 52.2 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 9.3 kB or 15% of the original size.

CSS Optimization

-15%

Potential reduce by 6.1 kB

  • Original 40.9 kB
  • After minification 40.4 kB
  • After compression 34.8 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. Vtron.com needs all CSS files to be minified and compressed as it can save up to 6.1 kB or 15% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (2%)

Requests Now

300

After Optimization

293

  • Images
  • JavaScript
  • CSS

The browser has sent 300 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vtron. 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 as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

vtron.com accessibility score

61

Accessibility Issues

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

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

vtron.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

vtron.com SEO score

54

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

High

robots.txt is not valid

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 Vtron.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 Vtron.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

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