Tools & Wizards About Us
yleee.com.cn screenshot

Report Summary

  • 55

    Performance

    Renders faster than
    72% of other websites

  • 58

    Accessibility

    Visual factors better than
    that of 25% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

yleee.com.cn

一乐电子diy论坛 -

Page Load Speed

26.2 sec in total

First Response

2.3 sec

Resources Loaded

23.6 sec

Page Rendered

207 ms

yleee.com.cn screenshot

About Website

Visit yleee.com.cn now to see the best up-to-date Yleee content for China and also check out these interesting facts you probably never knew about yleee.com.cn

这里没有广告,只有乐于分享和沟通的专业技术人员,这里没有套路,只有电子DIY套件,设计资料和程序源代码,这就是一乐电子（yleee电子）,这里有DIY套件团购,这里是共享设计资料,分享设计心得的电子DIY论坛,这里是数控稳压电源,模拟电路设计,数字电源开发设计,程控电源设计的专业网站,山不在高,水不在深,有资料,有源代码,有原创设计就行。

Visit yleee.com.cn

Key Findings

We analyzed Yleee.com.cn page load time and found that the first response time was 2.3 sec and then it took 23.8 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

yleee.com.cn performance score

55

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.8 s

5/100

10%

LCP (Largest Contentful Paint)

Value6.6 s

8/100

25%

SI (Speed Index)

Value11.9 s

4/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.9 s

66/100

10%

Network Requests Diagram

yleee.com.cn

2309 ms

forum.php

3559 ms

style_1_common.css

1102 ms

style_1_forum_index.css

2691 ms

common.js

4548 ms

Our browser made a total of 47 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Yleee.com.cn, 85% (40 requests) were made to Bbs.yleee.com.cn and 6% (3 requests) were made to Tcss.qq.com. The less responsive or slowest element that took the longest time to load (12.3 sec) relates to the external source Bbs.yleee.com.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 208.5 kB (48%)

Content Size

435.7 kB

After Optimization

227.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Yleee.com.cn main page is 435.7 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 226.7 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 25.7 kB

  • Original 35.1 kB
  • After minification 34.6 kB
  • After compression 9.4 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 25.7 kB or 73% of the original size.

Image Optimization

-25%

Potential reduce by 57.0 kB

  • Original 226.7 kB
  • After minification 169.7 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, Yleee needs image optimization as it can save up to 57.0 kB or 25% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-69%

Potential reduce by 69.1 kB

  • Original 100.4 kB
  • After minification 93.8 kB
  • After compression 31.3 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 69.1 kB or 69% of the original size.

CSS Optimization

-77%

Potential reduce by 56.8 kB

  • Original 73.5 kB
  • After minification 71.6 kB
  • After compression 16.8 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. Yleee.com.cn needs all CSS files to be minified and compressed as it can save up to 56.8 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (40%)

Requests Now

45

After Optimization

27

  • Images
  • JavaScript
  • CSS

The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Yleee. 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

yleee.com.cn

yleee.com.cn

2309 ms

forum.php

forum.php

3559 ms

style_1_common.css

style_1_common.css

1102 ms

style_1_forum_index.css

style_1_forum_index.css

2691 ms

common.js

common.js

4548 ms

style_1_widthauto.css

style_1_widthauto.css

929 ms

forum.js

forum.js

969 ms

logging.js

logging.js

1742 ms

md5.js

md5.js

1958 ms

logo.png

logo.png

2513 ms

qq_login.gif

qq_login.gif

2542 ms

collapsed_no.gif

collapsed_no.gif

3232 ms

ping.js

ping.js

480 ms

discuz_tips.js

discuz_tips.js

443 ms

logo_8.jpg

logo_8.jpg

3383 ms

logo_16.jpg

logo_16.jpg

1186 ms

logo_1.jpg

logo_1.jpg

2692 ms

common_65_icon.jpg

common_65_icon.jpg

1924 ms

logo_2.jpg

logo_2.jpg

4543 ms

logo_5.jpg

logo_5.jpg

3545 ms

logo_9.jpg

logo_9.jpg

5075 ms

logo_3.jpg

logo_3.jpg

3268 ms

logo_4.jpg

logo_4.jpg

4687 ms

logo_14.jpg

logo_14.jpg

4116 ms

logo_15.jpg

logo_15.jpg

4626 ms

logo_10.jpg

logo_10.jpg

5751 ms

forum.gif

forum.gif

5560 ms

security.png

security.png

7141 ms

switch_width.png

switch_width.png

3450 ms

px.png

px.png

8202 ms

newarow.gif

newarow.gif

4246 ms

pn.png

pn.png

4471 ms

nv.png

nv.png

4614 ms

qmenu.png

qmenu.png

5261 ms

nv_a.png

nv_a.png

5420 ms

search.png

search.png

7491 ms

pt_item.png

pt_item.png

5894 ms

chart.png

chart.png

7421 ms

category_lbg.png

category_lbg.png

7520 ms

tb.png

tb.png

6733 ms

dot.gif

dot.gif

7172 ms

titlebg.png

titlebg.png

12346 ms

toss_11.gif

toss_11.gif

237 ms

ODE4OTQwNw==.js

ODE4OTQwNw==.js

476 ms

h.js

h.js

1734 ms

hm.gif

hm.gif

1182 ms

scrolltop.png

scrolltop.png

6248 ms

Accessibility Review

yleee.com.cn accessibility score

58

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

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

yleee.com.cn 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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

yleee.com.cn SEO score

85

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

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

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    GBK

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Yleee.com.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 Yleee.com.cn main page’s claimed encoding is gbk. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

yleee.com.cn

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