Tools & Wizards About Us

Report Summary

  • 37

    Performance

    Renders faster than
    56% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 51% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

en.china-denox.com

Beijing dinos Environmental Protection Technology Co., Ltd_Home_DINOS Environmental Protection

Page Load Speed

26.5 sec in total

First Response

1.1 sec

Resources Loaded

24 sec

Page Rendered

1.4 sec

About Website

Click here to check amazing En China Denox content. Otherwise, check out these important facts you probably never knew about en.china-denox.com

Beijing DINNO Environmental Protection Technology Co., Ltd. was established in 2010 with a registered capital of 250 million yuan. The name of the company comes from the Chinese translation of DeNOx..

Visit en.china-denox.com

Key Findings

We analyzed En.china-denox.com page load time and found that the first response time was 1.1 sec and then it took 25.5 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 3 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

en.china-denox.com performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

26/100

10%

LCP (Largest Contentful Paint)

Value3.9 s

53/100

25%

SI (Speed Index)

Value26.9 s

0/100

10%

TBT (Total Blocking Time)

Value840 ms

34/100

30%

CLS (Cumulative Layout Shift)

Value0.165

72/100

15%

TTI (Time to Interactive)

Value20.3 s

2/100

10%

Network Requests Diagram

en.china-denox.com

1092 ms

iconfont.css

219 ms

share.min.css

437 ms

slick.css

445 ms

animate.css

441 ms

Our browser made a total of 77 requests to load all elements on the main page. We found that 79% of them (61 requests) were addressed to the original En.china-denox.com, 5% (4 requests) were made to Api.map.baidu.com and 4% (3 requests) were made to Miao.baidu.com. The less responsive or slowest element that took the longest time to load (19.6 sec) belongs to the original domain En.china-denox.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 163.0 kB (6%)

Content Size

2.9 MB

After Optimization

2.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of En.china-denox.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. 70% of websites need less resources to load. Images take 2.5 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 47.5 kB

  • Original 62.8 kB
  • After minification 62.6 kB
  • After compression 15.4 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 47.5 kB or 76% of the original size.

Image Optimization

-2%

Potential reduce by 53.7 kB

  • Original 2.5 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. En China Denox images are well optimized though.

JavaScript Optimization

-18%

Potential reduce by 53.4 kB

  • Original 291.9 kB
  • After minification 290.5 kB
  • After compression 238.5 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 53.4 kB or 18% of the original size.

CSS Optimization

-14%

Potential reduce by 8.4 kB

  • Original 60.5 kB
  • After minification 60.5 kB
  • After compression 52.1 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. En.china-denox.com needs all CSS files to be minified and compressed as it can save up to 8.4 kB or 14% of the original size.

Requests Breakdown

Number of requests can be reduced by 42 (58%)

Requests Now

72

After Optimization

30

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 72 CSS, Javascripts, AJAX and image requests in order to completely render the main page of En China Denox. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 38 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

en.china-denox.com accessibility score

81

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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

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

en.china-denox.com best practices score

75

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

en.china-denox.com SEO score

91

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

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

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