Tools & Wizards About Us
leicoo.com screenshot

Report Summary

  • 0

    Performance

  • 0

    Accessibility

  • 0

    Best Practices

  • 0

    SEO

leicoo.com

雷课教育- 计算机科学前沿教育咨询

Page Load Speed

21.9 sec in total

First Response

2.9 sec

Resources Loaded

18.7 sec

Page Rendered

270 ms

leicoo.com screenshot

About Website

Visit leicoo.com now to see the best up-to-date Leicoo content and also check out these interesting facts you probably never knew about leicoo.com

专注于计算机科学前沿领域，在数据科学、数字媒体、人工智能、区块链等领域有完善的课程体系，老师均来自一线机构和企业的专家

Visit leicoo.com

Key Findings

We analyzed Leicoo.com page load time and found that the first response time was 2.9 sec and then it took 19 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

leicoo.com performance score

0

Network Requests Diagram

leicoo.com

2905 ms

style.css

681 ms

slide.css

1358 ms

jquery-1.10.1.min.js

4106 ms

unslider.min.js

1358 ms

Our browser made a total of 20 requests to load all elements on the main page. We found that all of those requests were addressed to Leicoo.com and no external sources were called. The less responsive or slowest element that took the longest time to load (11.7 sec) belongs to the original domain Leicoo.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 400.5 kB (14%)

Content Size

2.9 MB

After Optimization

2.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Leicoo.com main page is 2.9 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. 30% of websites need less resources to load. Images take 2.8 MB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 4.7 kB

  • Original 6.4 kB
  • After minification 5.0 kB
  • After compression 1.6 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 1.4 kB, which is 22% 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 4.7 kB or 75% of the original size.

Image Optimization

-11%

Potential reduce by 300.0 kB

  • Original 2.8 MB
  • After minification 2.5 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, Leicoo needs image optimization as it can save up to 300.0 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-65%

Potential reduce by 64.6 kB

  • Original 99.7 kB
  • After minification 98.9 kB
  • After compression 35.1 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 64.6 kB or 65% of the original size.

CSS Optimization

-84%

Potential reduce by 31.2 kB

  • Original 37.2 kB
  • After minification 27.3 kB
  • After compression 6.0 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. Leicoo.com needs all CSS files to be minified and compressed as it can save up to 31.2 kB or 84% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

19

After Optimization

19

  • Images
  • JavaScript
  • CSS

The browser has sent 19 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Leicoo. According to our analytics all requests are already optimized.

Network Requests Diagram

leicoo.com

leicoo.com

2905 ms

style.css

style.css

681 ms

slide.css

slide.css

1358 ms

jquery-1.10.1.min.js

jquery-1.10.1.min.js

4106 ms

unslider.min.js

unslider.min.js

1358 ms

function.js

function.js

1355 ms

logo.png

logo.png

3051 ms

icon-search.png

icon-search.png

671 ms

55ec754cded59.png

55ec754cded59.png

6503 ms

55ec737e488f6.png

55ec737e488f6.png

6506 ms

55ed47200dc34.png

55ed47200dc34.png

1326 ms

55ed47975ef37.png

55ed47975ef37.png

9013 ms

55e52838d71d1.png

55e52838d71d1.png

5244 ms

55e5361e71d51.png

55e5361e71d51.png

3281 ms

55e52838d71d1.png

55e52838d71d1.png

5617 ms

55ebbb7cd2066.png

55ebbb7cd2066.png

11696 ms

55e5361e71d51.png

55e5361e71d51.png

7180 ms

55ece52f42b6e.png

55ece52f42b6e.png

7548 ms

55ece4bfc643f.png

55ece4bfc643f.png

7807 ms

55ece68c19928.png

55ece68c19928.png

7807 ms

SEO Factors

leicoo.com SEO score

0

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Leicoo.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it does not match the claimed English language. Our system also found out that Leicoo.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

leicoo.com

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