Access en.china-denox.com. Beijing denox Environmental Protection Technology Co., Ltd_Home

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

27/100

10%

LCP (Largest Contentful Paint)

Value4.1 s

48/100

25%

SI (Speed Index)

Value15.7 s

0/100

10%

TBT (Total Blocking Time)

Value1,060 ms

25/100

30%

CLS (Cumulative Layout Shift)

Value0.293

41/100

15%

TTI (Time to Interactive)

Value19.1 s

3/100

10%

en.china-denox.com

1130 ms

iconfont.css

211 ms

share.min.css

420 ms

slick.css

424 ms

animate.css

422 ms

Our browser made a total of 80 requests to load all elements on the main page. We found that 85% of them (68 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 (10 sec) belongs to the original domain En.china-denox.com.

Content Size

4.3 MB

After Optimization

4.1 MB

In fact, the total size of En.china-denox.com main page is 4.3 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 3.9 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 50.5 kB

Original 66.3 kB
After minification 66.1 kB
After compression 15.8 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 50.5 kB or 76% of the original size.

Image Optimization

-2%

Potential reduce by 69.9 kB

Original 3.9 MB
After minification 3.8 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

-21%

Potential reduce by 57.1 kB

Original 274.6 kB
After minification 273.2 kB
After compression 217.5 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 57.1 kB or 21% 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 Now

After Optimization

The browser has sent 78 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 36 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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.

High

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

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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.

High

Links do not have a discernible name

These items highlight common accessibility best practices.

High

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

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

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/).

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

en.china-denox.com

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:

Report Summary

Performance

Accessibility

Best Practices

SEO

Beijing denox Environmental Protection Technology Co., Ltd_Home_DENOX Environmental Protection

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

en.china-denox.com

iconfont.css

share.min.css

slick.css

animate.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

en.china-denox.com

iconfont.css

share.min.css

slick.css

animate.css

style-core.css

style.css

jquery-3.3.1.min.js

popper.min.js

bootstrap.min.js

bbc.js

moment-china.js

bootstrap-select.js

defaults-zh_CN.js

bootstrap-datetimepicker.js

remote-select.js

notify.js

jquery.validate.js

getCode.js

jquery.form.js

form-main.js

autosize.js

fix-ie9.js

lazyload.js

masonry.pkgd.min.js

img.js

ajaxPagination.js

slick.min.js

wow.js

jquery.share.min.js

header_mobile_v5.js

main.js

custom.js

clipboard.min.js

jquery.matchHeight.js

api

jweixin-1.4.0.js

gtm.js

16164825322043462951.png

1616482539589705186.png

1612252044368877911.jpg

1617242954135075479.jpg

1612257129488695538.jpg