Tools & Wizards About Us

Report Summary

  • 48

    Performance

    Renders faster than
    66% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 51% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 54

    SEO

    Google-friendlier than
    19% of websites

lt-edu.net

蓝天远程教育网

Page Load Speed

29.9 sec in total

First Response

3.1 sec

Resources Loaded

26.4 sec

Page Rendered

409 ms

About Website

Welcome to lt-edu.net homepage info - get ready to check Lt Edu best content for China right away, or after learning these important things about lt-edu.net

蓝天远程教育网有限公司2009年3月,是教育大数据运营服务商、最优秀的技术提供商、构建终身教育体系，致力于教育管理信息化、教学资源数字化专业发展、以诚信重于一切、以诚信立足社会、以诚信服务学员、以诚信善待员工。

Visit lt-edu.net

Key Findings

We analyzed Lt-edu.net page load time and found that the first response time was 3.1 sec and then it took 26.8 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 3 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

lt-edu.net performance score

48

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

36/100

10%

LCP (Largest Contentful Paint)

Value8.1 s

2/100

25%

SI (Speed Index)

Value17.0 s

0/100

10%

TBT (Total Blocking Time)

Value190 ms

90/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value11.9 s

16/100

10%

Network Requests Diagram

www.lt-edu.net

3125 ms

jquery-1.8.3.min.js

314 ms

common.js

555 ms

logic.js

560 ms

jQuery.adamMap.1.0.js

561 ms

Our browser made a total of 52 requests to load all elements on the main page. We found that 79% of them (41 requests) were addressed to the original Lt-edu.net, 13% (7 requests) were made to Zj.dc-tz.com and 4% (2 requests) were made to Xbyx.cn. The less responsive or slowest element that took the longest time to load (20.3 sec) belongs to the original domain Lt-edu.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 464.2 kB (13%)

Content Size

3.6 MB

After Optimization

3.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Lt-edu.net main page is 3.6 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. 25% of websites need less resources to load. Images take 3.2 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 69.3 kB

  • Original 90.7 kB
  • After minification 81.7 kB
  • After compression 21.5 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 69.3 kB or 76% of the original size.

Image Optimization

-6%

Potential reduce by 200.8 kB

  • Original 3.2 MB
  • After minification 3.0 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. Lt Edu images are well optimized though.

JavaScript Optimization

-71%

Potential reduce by 139.0 kB

  • Original 196.6 kB
  • After minification 167.6 kB
  • After compression 57.5 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 139.0 kB or 71% of the original size.

CSS Optimization

-82%

Potential reduce by 55.2 kB

  • Original 67.0 kB
  • After minification 58.7 kB
  • After compression 11.8 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. Lt-edu.net needs all CSS files to be minified and compressed as it can save up to 55.2 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (26%)

Requests Now

31

After Optimization

23

  • Images
  • JavaScript
  • CSS

The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lt Edu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

lt-edu.net accessibility score

81

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Tables and lists

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

Impact

Issue

High

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

Best Practices

lt-edu.net best practices score

58

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

lt-edu.net SEO score

54

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

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 Lt-edu.net 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 Lt-edu.net 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 Lt Edu. 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: