Report Summary

  • 84

    Performance

    Renders faster than
    88% of other websites

  • 37

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

Page Load Speed

18 sec in total

First Response

3.7 sec

Resources Loaded

13.8 sec

Page Rendered

433 ms

sc.enchange.cn screenshot

About Website

Welcome to sc.enchange.cn homepage info - get ready to check Sc Enchange best content for China right away, or after learning these important things about sc.enchange.cn

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Key Findings

We analyzed Sc.enchange.cn page load time and found that the first response time was 3.7 sec and then it took 14.3 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

sc.enchange.cn performance score

84

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.6 s

95/100

10%

LCP (Largest Contentful Paint)

Value2.7 s

86/100

25%

SI (Speed Index)

Value9.6 s

11/100

10%

TBT (Total Blocking Time)

Value80 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.101

89/100

15%

TTI (Time to Interactive)

Value4.2 s

85/100

10%

Network Requests Diagram

sc.enchange.cn

3715 ms

css_new.css

746 ms

IndexPic.asp

965 ms

bj.jpg

482 ms

index_03.jpg

498 ms

Our browser made a total of 115 requests to load all elements on the main page. We found that 98% of them (113 requests) were addressed to the original Sc.enchange.cn, 2% (2 requests) were made to Webjx.com. The less responsive or slowest element that took the longest time to load (5.6 sec) belongs to the original domain Sc.enchange.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 784.4 kB (48%)

Content Size

1.6 MB

After Optimization

862.7 kB

In fact, the total size of Sc.enchange.cn main page is 1.6 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. 40% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 113.7 kB

  • Original 132.6 kB
  • After minification 121.3 kB
  • After compression 18.9 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 113.7 kB or 86% of the original size.

Image Optimization

-44%

Potential reduce by 649.0 kB

  • Original 1.5 MB
  • After minification 837.1 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. Obviously, Sc Enchange needs image optimization as it can save up to 649.0 kB or 44% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-76%

Potential reduce by 19.2 kB

  • Original 25.4 kB
  • After minification 25.2 kB
  • After compression 6.2 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 19.2 kB or 76% of the original size.

CSS Optimization

-81%

Potential reduce by 2.5 kB

  • Original 3.1 kB
  • After minification 2.4 kB
  • After compression 582 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. Sc.enchange.cn needs all CSS files to be minified and compressed as it can save up to 2.5 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (20%)

Requests Now

113

After Optimization

90

The browser has sent 113 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sc Enchange. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

sc.enchange.cn accessibility score

37

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.

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

<input type="image"> elements do not have [alt] text

High

Form elements do not have associated labels

High

Links do not have a discernible name

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

Best Practices

sc.enchange.cn best practices score

58

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

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

sc.enchange.cn SEO score

62

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

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

    N/A

  • Language Claimed

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sc.enchange.cn can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Sc.enchange.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

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