Report Summary

  • 85

    Performance

    Renders faster than
    88% of other websites

  • 46

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

uml.org.cn

UML软件工程组织-火龙果软件工程

Page Load Speed

6.9 sec in total

First Response

1.9 sec

Resources Loaded

4.8 sec

Page Rendered

133 ms

uml.org.cn screenshot

About Website

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

UML软件工程组织,火龙果软件培训与咨询典型客户:IBM,中国银行,华为,GE,爱立信,HP,中国移动,Sony,西门子,阿里巴巴,诺基亚,富士通研发中心

Visit uml.org.cn

Key Findings

We analyzed Uml.org.cn page load time and found that the first response time was 1.9 sec and then it took 5 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

uml.org.cn performance score

85

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

84/100

10%

LCP (Largest Contentful Paint)

Value2.8 s

84/100

25%

SI (Speed Index)

Value2.6 s

97/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.274

44/100

15%

TTI (Time to Interactive)

Value3.2 s

94/100

10%

Network Requests Diagram

uml.org.cn

1925 ms

styleindex.css

966 ms

style1.css

780 ms

pxgk.css

393 ms

vedio.css

382 ms

Our browser made a total of 31 requests to load all elements on the main page. We found that 97% of them (30 requests) were addressed to the original Uml.org.cn, 3% (1 request) were made to Request.uml.com.cn. The less responsive or slowest element that took the longest time to load (2 sec) belongs to the original domain Uml.org.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 99.7 kB (39%)

Content Size

258.7 kB

After Optimization

159.0 kB

In fact, the total size of Uml.org.cn main page is 258.7 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. Only 10% of websites need less resources to load. Images take 178.9 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 41.8 kB

  • Original 47.5 kB
  • After minification 35.1 kB
  • After compression 5.7 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 12.4 kB, which is 26% 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 41.8 kB or 88% of the original size.

Image Optimization

-17%

Potential reduce by 29.6 kB

  • Original 178.9 kB
  • After minification 149.3 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, Uml needs image optimization as it can save up to 29.6 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-88%

Potential reduce by 28.3 kB

  • Original 32.2 kB
  • After minification 24.5 kB
  • After compression 4.0 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. Uml.org.cn needs all CSS files to be minified and compressed as it can save up to 28.3 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 15 (50%)

Requests Now

30

After Optimization

15

The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Uml. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

uml.org.cn accessibility score

46

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

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

uml.org.cn best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

uml.org.cn SEO score

83

Search Engine Optimization Advices

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

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Uml.org.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 Uml.org.cn main page’s claimed encoding is gb2312. 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

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