Tools & Wizards About Us
lt-edu.net screenshot

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

lt-edu.net screenshot

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

www.lt-edu.net

www.lt-edu.net

3125 ms

jquery-1.8.3.min.js

jquery-1.8.3.min.js

314 ms

common.js

common.js

555 ms

logic.js

logic.js

560 ms

jQuery.adamMap.1.0.js

jQuery.adamMap.1.0.js

561 ms

fsrPMD.js

fsrPMD.js

616 ms

stylesken.css

stylesken.css

638 ms

index.css

index.css

869 ms

stats

stats

16862 ms

footer.css

footer.css

1017 ms

default_blue.css

default_blue.css

20295 ms

login.js

login.js

1055 ms

jquery.Sonline.js

jquery.Sonline.js

1124 ms

index.php

index.php

5988 ms

chrome.png

chrome.png

9735 ms

54432b24bfcc3.png

54432b24bfcc3.png

19689 ms

firefox.png

firefox.png

11419 ms

lmlogo.jpg

lmlogo.jpg

903 ms

tel2.png

tel2.png

614 ms

5706f5dc4d946.jpg

5706f5dc4d946.jpg

1762 ms

56ff8784e62dd.jpg

56ff8784e62dd.jpg

782 ms

56fb3e7fc6169.jpg

56fb3e7fc6169.jpg

791 ms

56f3a304c29c1.jpg

56f3a304c29c1.jpg

915 ms

56eb570dc9f28.jpg

56eb570dc9f28.jpg

1057 ms

56e28a468c85f.jpg

56e28a468c85f.jpg

1069 ms

56ff86c8bf40b.jpg

56ff86c8bf40b.jpg

1208 ms

56a9c5a0d6ee6.jpg

56a9c5a0d6ee6.jpg

1222 ms

56a5e1148835e.jpg

56a5e1148835e.jpg

1330 ms

56970f0b48e85.jpg

56970f0b48e85.jpg

1357 ms

map.jpg

map.jpg

2147 ms

h0.png

h0.png

2104 ms

h2.png

h2.png

1860 ms

h3.png

h3.png

1911 ms

54116800ed65b.jpg

54116800ed65b.jpg

2035 ms

54d70cb1a2eaa.png

54d70cb1a2eaa.png

2144 ms

5506a5a1507a0.png

5506a5a1507a0.png

2189 ms

54d70f77ec57d.gif

54d70f77ec57d.gif

2312 ms

54d7101cb8c01.png

54d7101cb8c01.png

2402 ms

54d71069b1993.jpg

54d71069b1993.jpg

2418 ms

54d7109ceb5d1.jpg

54d7109ceb5d1.jpg

2451 ms

5436036c927ac.jpg

5436036c927ac.jpg

4205 ms

5443275a502a9.png

5443275a502a9.png

17670 ms

544337a55968c.png

544337a55968c.png

15815 ms

543bc9934f65a.png

543bc9934f65a.png

19674 ms

54433837c49b2.png

54433837c49b2.png

12922 ms

54165f5337997.png

54165f5337997.png

7298 ms

lighterLR.gif

lighterLR.gif

2219 ms

lightIcon.gif

lightIcon.gif

2336 ms

loginbg-new.jpg

loginbg-new.jpg

2451 ms

icon2.gif

icon2.gif

2402 ms

Css.css

Css.css

305 ms

tabdms.js

tabdms.js

338 ms

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

lt-edu.net

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: