Tools & Wizards About Us
youj.com screenshot

Report Summary

  • 65

    Performance

    Renders faster than
    79% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 60% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 95

    SEO

    Google-friendlier than
    91% of websites

youj.com

游聚 - 边玩边学编程

Page Load Speed

44.3 sec in total

First Response

2 sec

Resources Loaded

41.6 sec

Page Rendered

616 ms

youj.com screenshot

About Website

Click here to check amazing Youj content. Otherwise, check out these important facts you probably never knew about youj.com

游聚,少儿编程,少儿编程培训,少儿编程课程,青少年编程,青少年编程教育,少儿计算机编程培训,儿童编程,儿童编程教育,在线少儿编程,在线少儿编程教育

Visit youj.com

Key Findings

We analyzed Youj.com page load time and found that the first response time was 2 sec and then it took 42.3 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

youj.com performance score

65

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

72/100

10%

LCP (Largest Contentful Paint)

Value6.1 s

12/100

25%

SI (Speed Index)

Value6.0 s

47/100

10%

TBT (Total Blocking Time)

Value210 ms

89/100

30%

CLS (Cumulative Layout Shift)

Value0.02

100/100

15%

TTI (Time to Interactive)

Value4.6 s

81/100

10%

Network Requests Diagram

youj.com

2038 ms

www.youj.com

3417 ms

index.css

3323 ms

lrtk.css

951 ms

index_logo.png

1005 ms

Our browser made a total of 94 requests to load all elements on the main page. We found that 95% of them (89 requests) were addressed to the original Youj.com, 1% (1 request) were made to S4.cnzz.com and 1% (1 request) were made to Oz.cnzz.com. The less responsive or slowest element that took the longest time to load (20.4 sec) belongs to the original domain Youj.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 189.8 kB (29%)

Content Size

645.0 kB

After Optimization

455.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Youj.com main page is 645.0 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. 25% of websites need less resources to load. Images take 489.0 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 16.1 kB

  • Original 21.2 kB
  • After minification 18.0 kB
  • After compression 5.0 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 3.2 kB, which is 15% 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 16.1 kB or 76% of the original size.

Image Optimization

-12%

Potential reduce by 59.9 kB

  • Original 489.0 kB
  • After minification 429.0 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, Youj needs image optimization as it can save up to 59.9 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-77%

Potential reduce by 8.7 kB

  • Original 11.3 kB
  • After minification 7.2 kB
  • After compression 2.6 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 8.7 kB or 77% of the original size.

CSS Optimization

-85%

Potential reduce by 105.1 kB

  • Original 123.5 kB
  • After minification 93.3 kB
  • After compression 18.5 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. Youj.com needs all CSS files to be minified and compressed as it can save up to 105.1 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (13%)

Requests Now

87

After Optimization

76

  • Images
  • JavaScript
  • CSS

The browser has sent 87 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Youj. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

youj.com

youj.com

2038 ms

www.youj.com

www.youj.com

3417 ms

index.css

index.css

3323 ms

lrtk.css

lrtk.css

951 ms

index_logo.png

index_logo.png

1005 ms

lb1.png

lb1.png

20435 ms

lb2.png

lb2.png

20436 ms

lb3.png

lb3.png

7765 ms

lb4.png

lb4.png

11366 ms

l-btn.png

l-btn.png

2354 ms

r-btn.png

r-btn.png

2826 ms

icon-usecase.png

icon-usecase.png

4796 ms

icon-fangdajing.png

icon-fangdajing.png

3774 ms

icon-wenda.png

icon-wenda.png

5240 ms

icon-recordnote.png

icon-recordnote.png

6290 ms

icon-record.png

icon-record.png

6130 ms

icon-groups.png

icon-groups.png

6580 ms

icon-slideshare.png

icon-slideshare.png

7232 ms

icon-gzgt.png

icon-gzgt.png

7029 ms

cover_php.png

cover_php.png

7997 ms

cover_html.png

cover_html.png

10685 ms

cover_css.png

cover_css.png

8688 ms

cover_bootstrap.png

cover_bootstrap.png

8896 ms

cover_javascript.png

cover_javascript.png

9602 ms

cover_jquery.png

cover_jquery.png

9821 ms

cover_ajax.png

cover_ajax.png

10997 ms

cover_mysql.png

cover_mysql.png

10313 ms

cover_java.png

cover_java.png

10794 ms

cover_mvc.png

cover_mvc.png

12107 ms

question-icon.png

question-icon.png

11265 ms

1456897118714199.png

1456897118714199.png

20424 ms

1454654492785161.png

1454654492785161.png

20414 ms

1447139718778474.jpg

1447139718778474.jpg

12793 ms

1447127576542624.jpg

1447127576542624.jpg

14879 ms

cover_htmltags.jpeg

cover_htmltags.jpeg

13804 ms

cover_72.png

cover_72.png

14294 ms

cover_68.png

cover_68.png

14777 ms

c.png

c.png

14334 ms

cover_29.png

cover_29.png

15485 ms

jquery-1.8.3.min.js

jquery-1.8.3.min.js

16298 ms

lrtk.js

lrtk.js

15046 ms

commonfooter.js

commonfooter.js

15104 ms

cover_52.png

cover_52.png

15436 ms

cover_77.png

cover_77.png

14906 ms

cover_hzg1va.png

cover_hzg1va.png

15342 ms

cover_rhu1vo.png

cover_rhu1vo.png

14547 ms

cover_epx1vy.png

cover_epx1vy.png

14578 ms

cover_lri1y3.png

cover_lri1y3.png

14816 ms

cover_max1zw.png

cover_max1zw.png

15070 ms

cover_lzh1xd.png

cover_lzh1xd.png

16095 ms

cover_lqu1xy.png

cover_lqu1xy.png

14176 ms

cover_vxu1zv.png

cover_vxu1zv.png

13693 ms

cover_oef1y1.png

cover_oef1y1.png

14093 ms

cover_pbn1vq.png

cover_pbn1vq.png

13375 ms

cover_yysc.png

cover_yysc.png

13416 ms

cover_jil1to.jpg

cover_jil1to.jpg

12827 ms

cover_gji1wh.png

cover_gji1wh.png

13666 ms

cover_loe1xw.png

cover_loe1xw.png

13874 ms

cover_xjo1yw.png

cover_xjo1yw.png

13536 ms

cover_nqe1z1.png

cover_nqe1z1.png

12438 ms

cover_xwg22y.jpg

cover_xwg22y.jpg

11908 ms

cover_vol1wo.png

cover_vol1wo.png

12578 ms

cover_seocxzxbbzs.png

cover_seocxzxbbzs.png

14420 ms

cover_206.jpg

cover_206.jpg

11558 ms

cover_yxrmsc.png

cover_yxrmsc.png

12482 ms

cover_199.jpg

cover_199.jpg

11960 ms

cover_seo1u7.jpg

cover_seo1u7.jpg

10004 ms

cover_hnj1x7.png

cover_hnj1x7.png

12871 ms

cover_lvo1ye.png

cover_lvo1ye.png

15947 ms

cover_skj1yf.png

cover_skj1yf.png

10442 ms

cover_tam1zo.png

cover_tam1zo.png

9646 ms

cover_ybv203.png

cover_ybv203.png

8784 ms

cover_dao237.png

cover_dao237.png

9296 ms

z_stat.php

z_stat.php

1497 ms

cover_130.jpg

cover_130.jpg

8423 ms

cover_xdp1xx.png

cover_xdp1xx.png

9920 ms

cover_dfk1zt.png

cover_dfk1zt.png

8247 ms

stat.htm

stat.htm

247 ms

core.php

core.php

1051 ms

cover_sjg1zi.jpg

cover_sjg1zi.jpg

7266 ms

cover_rwa1zk.png

cover_rwa1zk.png

7835 ms

cover_xum1xh.png

cover_xum1xh.png

8128 ms

cover_tzw1zp.png

cover_tzw1zp.png

7817 ms

qr.png

qr.png

12542 ms

qr.png

qr.png

11578 ms

icons.png

icons.png

8048 ms

9.gif

9.gif

1022 ms

hd_arr.gif

hd_arr.gif

7984 ms

link.png

link.png

7701 ms

backgrounds.32.png

backgrounds.32.png

10395 ms

qqkf.jpg

qqkf.jpg

8529 ms

app.gif

app.gif

760 ms

backgrounds.32.png

backgrounds.32.png

16005 ms

qr-img.png

qr-img.png

9898 ms

Accessibility Review

youj.com accessibility score

85

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

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

youj.com best practices score

67

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

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

youj.com SEO score

95

Search Engine Optimization Advices

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

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 Youj.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 Youj.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

youj.com

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