Tools & Wizards About Us

Report Summary

  • 86

    Performance

    Renders faster than
    89% of other websites

  • 46

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

dl.ctxy.cn

家校智连

Page Load Speed

57.8 sec in total

First Response

12.7 sec

Resources Loaded

44.9 sec

Page Rendered

115 ms

About Website

Click here to check amazing Dl Ctxy content. Otherwise, check out these important facts you probably never knew about dl.ctxy.cn

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Visit dl.ctxy.cn

Key Findings

We analyzed Dl.ctxy.cn page load time and found that the first response time was 12.7 sec and then it took 45 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there were 4 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

dl.ctxy.cn performance score

86

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

71/100

10%

LCP (Largest Contentful Paint)

Value2.7 s

85/100

25%

SI (Speed Index)

Value7.0 s

33/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.4 s

98/100

10%

Network Requests Diagram

dl.ctxy.cn

12714 ms

reset.css

2905 ms

login.css

6992 ms

jquery.js

20152 ms

jquery.backstretch.min.js

6301 ms

Our browser made a total of 29 requests to load all elements on the main page. We found that 76% of them (22 requests) were addressed to the original Dl.ctxy.cn, 3% (1 request) were made to Hm.baidu.com and 3% (1 request) were made to V1.cnzz.com. The less responsive or slowest element that took the longest time to load (20.2 sec) belongs to the original domain Dl.ctxy.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 154.7 kB (65%)

Content Size

237.2 kB

After Optimization

82.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dl.ctxy.cn main page is 237.2 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. Only 5% of websites need less resources to load. Javascripts take 167.6 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 21.8 kB

  • Original 29.4 kB
  • After minification 26.0 kB
  • After compression 7.6 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 3.4 kB, which is 11% 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 21.8 kB or 74% of the original size.

Image Optimization

-17%

Potential reduce by 5.0 kB

  • Original 29.5 kB
  • After minification 24.5 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, Dl Ctxy needs image optimization as it can save up to 5.0 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-71%

Potential reduce by 119.6 kB

  • Original 167.6 kB
  • After minification 159.5 kB
  • After compression 48.0 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 119.6 kB or 71% of the original size.

CSS Optimization

-77%

Potential reduce by 8.3 kB

  • Original 10.7 kB
  • After minification 8.4 kB
  • After compression 2.4 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. Dl.ctxy.cn needs all CSS files to be minified and compressed as it can save up to 8.3 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (52%)

Requests Now

23

After Optimization

11

  • Images
  • JavaScript
  • CSS

The browser has sent 23 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dl Ctxy. 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

dl.ctxy.cn accessibility score

46

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

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

dl.ctxy.cn best practices score

67

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

dl.ctxy.cn SEO score

92

Search Engine Optimization Advices

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 Dl.ctxy.cn 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 Dl.ctxy.cn 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 Dl Ctxy. 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: