Tools & Wizards About Us
royal-tech.cn screenshot

Report Summary

  • 84

    Performance

    Renders faster than
    88% of other websites

  • 54

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

royal-tech.cn

VICTRON ENERGY船舶、游艇蓄电池充电器,逆变器，车载逆变器UPS、隔离器, 光伏离网逆变器、太阳能充电控制器--路亚科技

Page Load Speed

30.9 sec in total

First Response

5.2 sec

Resources Loaded

25.2 sec

Page Rendered

521 ms

royal-tech.cn screenshot

About Website

Click here to check amazing Royal Tech content. Otherwise, check out these important facts you probably never knew about royal-tech.cn

Shen Zhen Royal technology,深圳市路亚科技

Visit royal-tech.cn

Key Findings

We analyzed Royal-tech.cn page load time and found that the first response time was 5.2 sec and then it took 25.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there were 3 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

royal-tech.cn performance score

84

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.0 s

100/100

10%

LCP (Largest Contentful Paint)

Value4.4 s

40/100

25%

SI (Speed Index)

Value3.0 s

94/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value1.0 s

100/100

10%

Network Requests Diagram

royal-tech.cn

5158 ms

Sh.css

828 ms

menubg.png

19898 ms

h-m-v-2015.gif

19897 ms

Victron_Logo_blue-s.jpg

4335 ms

Our browser made a total of 11 requests to load all elements on the main page. We found that all of those requests were addressed to Royal-tech.cn and no external sources were called. The less responsive or slowest element that took the longest time to load (20.5 sec) belongs to the original domain Royal-tech.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 22.7 kB (52%)

Content Size

44.1 kB

After Optimization

21.3 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Royal-tech.cn main page is 44.1 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. Images take 28.2 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 12.5 kB

  • Original 15.7 kB
  • After minification 11.4 kB
  • After compression 3.2 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 4.3 kB, which is 27% 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 12.5 kB or 80% of the original size.

Image Optimization

-36%

Potential reduce by 10.1 kB

  • Original 28.2 kB
  • After minification 18.1 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, Royal Tech needs image optimization as it can save up to 10.1 kB or 36% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-46%

Potential reduce by 76 B

  • Original 167 B
  • After minification 106 B
  • After compression 91 B

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. Royal-tech.cn needs all CSS files to be minified and compressed as it can save up to 76 B or 46% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

7

After Optimization

7

  • Images
  • CSS

The browser has sent 7 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Royal Tech. According to our analytics all requests are already optimized.

Network Requests Diagram

royal-tech.cn

royal-tech.cn

5158 ms

Sh.css

Sh.css

828 ms

menubg.png

menubg.png

19898 ms

h-m-v-2015.gif

h-m-v-2015.gif

19897 ms

Victron_Logo_blue-s.jpg

Victron_Logo_blue-s.jpg

4335 ms

new.gif

new.gif

4378 ms

h-marine-s.jpg

h-marine-s.jpg

5566 ms

h-vechicle-s.jpg

h-vechicle-s.jpg

5947 ms

h-solar-s.jpg

h-solar-s.jpg

8920 ms

h-indus-s.jpg

h-indus-s.jpg

7162 ms

1432808502_upload_products_555_1000-320_2.png

1432808502_upload_products_555_1000-320_2.png

20485 ms

Accessibility Review

royal-tech.cn accessibility score

54

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.

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

royal-tech.cn best practices score

75

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

SEO Factors

royal-tech.cn SEO score

69

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

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 Royal-tech.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 Royal-tech.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

royal-tech.cn

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