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deehow.com screenshot

Report Summary

  • 39

    Performance

    Renders faster than
    59% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 37% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

deehow.com

北京迪浩永辉技术有限公司

Page Load Speed

31.8 sec in total

First Response

1.9 sec

Resources Loaded

29.7 sec

Page Rendered

208 ms

deehow.com screenshot

About Website

Welcome to deehow.com homepage info - get ready to check Deehow best content right away, or after learning these important things about deehow.com

迪浩OrCAD Allegro Allegro PCB/PSpice软件（Capture，PSpice，Allegro)专业服务提供商，工程应用专家，官方授权代理。

Visit deehow.com

Key Findings

We analyzed Deehow.com page load time and found that the first response time was 1.9 sec and then it took 29.9 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 2 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

deehow.com performance score

39

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value10.3 s

0/100

10%

LCP (Largest Contentful Paint)

Value11.0 s

0/100

25%

SI (Speed Index)

Value13.3 s

2/100

10%

TBT (Total Blocking Time)

Value360 ms

72/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value11.5 s

18/100

10%

Network Requests Diagram

www.bjdihao.com.cn

1869 ms

css.css

1201 ms

jquery-1.11.2.min.js

5884 ms

main.js

809 ms

jquery.flexslider-min.js

4655 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 Deehow.com and no external sources were called. The less responsive or slowest element that took the longest time to load (20 sec) relates to the external source Bjdihao.com.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 77.1 kB (53%)

Content Size

144.3 kB

After Optimization

67.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Deehow.com main page is 144.3 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 51.6 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 16.9 kB

  • Original 23.8 kB
  • After minification 22.8 kB
  • After compression 6.9 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 16.9 kB or 71% of the original size.

Image Optimization

-16%

Potential reduce by 8.1 kB

  • Original 51.6 kB
  • After minification 43.5 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, Deehow needs image optimization as it can save up to 8.1 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-70%

Potential reduce by 23.3 kB

  • Original 33.1 kB
  • After minification 33.1 kB
  • After compression 9.8 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 23.3 kB or 70% of the original size.

CSS Optimization

-81%

Potential reduce by 28.8 kB

  • Original 35.8 kB
  • After minification 30.7 kB
  • After compression 6.9 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. Deehow.com needs all CSS files to be minified and compressed as it can save up to 28.8 kB or 81% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

17

After Optimization

17

  • Images
  • JavaScript
  • CSS

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Deehow. According to our analytics all requests are already optimized.

Network Requests Diagram

www.bjdihao.com.cn

www.bjdihao.com.cn

1869 ms

css.css

css.css

1201 ms

jquery-1.11.2.min.js

jquery-1.11.2.min.js

5884 ms

main.js

main.js

809 ms

jquery.flexslider-min.js

jquery.flexslider-min.js

4655 ms

06155616930.jpg

06155616930.jpg

816 ms

01170448598.jpg

01170448598.jpg

20008 ms

01170126644.jpg

01170126644.jpg

20009 ms

index_tab.png

index_tab.png

400 ms

index1.jpg

index1.jpg

2897 ms

index2.jpg

index2.jpg

1595 ms

index3.jpg

index3.jpg

3247 ms

index-more.gif

index-more.gif

2018 ms

29122154605.jpg.s3.jpg

29122154605.jpg.s3.jpg

2407 ms

29122219248.jpg.s3.jpg

29122219248.jpg.s3.jpg

2792 ms

20161002937.jpg.s3.jpg

20161002937.jpg.s3.jpg

3208 ms

12111739572.jpg.s3.jpg

12111739572.jpg.s3.jpg

3676 ms

dot.png

dot.png

3504 ms

prev.png

prev.png

3577 ms

next.png

next.png

4900 ms

Accessibility Review

deehow.com accessibility score

71

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not have valid values

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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.

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

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

deehow.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

deehow.com SEO score

77

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

High

robots.txt is not valid

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

    UT

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Deehow.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 language. Our system also found out that Deehow.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

deehow.com

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