Access duoxin.com. Changzhou E-Sound Electronics Co.,Ltd

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

72/100

10%

LCP (Largest Contentful Paint)

Value5.9 s

14/100

25%

SI (Speed Index)

Value4.4 s

74/100

10%

TBT (Total Blocking Time)

Value150 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0.469

18/100

15%

TTI (Time to Interactive)

Value4.9 s

77/100

10%

duoxin.com

384 ms

www.duoxin.com

654 ms

common.css

74 ms

index.css

150 ms

jquery.js

273 ms

Our browser made a total of 95 requests to load all elements on the main page. We found that 93% of them (88 requests) were addressed to the original Duoxin.com, 3% (3 requests) were made to Google-analytics.com and 2% (2 requests) were made to S7.addthis.com. The less responsive or slowest element that took the longest time to load (790 ms) belongs to the original domain Duoxin.com.

Content Size

3.4 MB

After Optimization

2.9 MB

In fact, the total size of Duoxin.com main page is 3.4 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 3.2 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 32.5 kB

Original 39.9 kB
After minification 36.3 kB
After compression 7.4 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 32.5 kB or 82% of the original size.

Image Optimization

-12%

Potential reduce by 383.3 kB

Original 3.2 MB
After minification 2.8 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. Obviously, Duoxin needs image optimization as it can save up to 383.3 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-33%

Potential reduce by 55.9 kB

Original 167.3 kB
After minification 165.7 kB
After compression 111.3 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 55.9 kB or 33% of the original size.

CSS Optimization

-17%

Potential reduce by 2.0 kB

Original 11.8 kB
After minification 11.8 kB
After compression 9.8 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. Duoxin.com needs all CSS files to be minified and compressed as it can save up to 2.0 kB or 17% of the original size.

Requests Now

After Optimization

The browser has sent 91 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Duoxin. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 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 legibility of your content.

High

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

These are opportunities to improve the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

High

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

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

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

Search Engine Optimization Advices

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

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

N/A
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Duoxin.com can be misinterpreted by Google and other search engines. Our service has detected that English 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 Duoxin.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

duoxin.com

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

Changzhou E-Sound Electronics Co.,Ltd

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

duoxin.com

www.duoxin.com

common.css

index.css

jquery.js

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

duoxin.com

www.duoxin.com

common.css

index.css

jquery.js

common.js

translator.js

statitics.js

jquery.autocomplete.min.js

jquery.autocomplete.css

jquery-1.8.3.min.js

nav.js

navcontrol.js

tools.min.js

style.css

jquery.event.drag-1.5.min.js

jquery.touchSlider.js

lrtk.js

lrtk.css

gun.js

thickbox.css

thickbox.js

addthis_widget.js

skypeCheck.js

statistics

599b7535349b2.jpeg

ico_cn.gif

aboutpic.jpg

abouttitle.jpg

153810283383.png

153810013495.png

155427606329.jpg

155427602125.jpg

153802340763.png

153802308130.png

155383730344.jpg

153793788438.png

153793767729.png

155321655061.jpg

153793704886.png

23685.jpg

22982.jpg

155409674161.jpg