Report Summary

  • 14

    Performance

    Renders faster than
    26% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

rbt.cn

深圳网络推广_SEO优化_联为网络营销顾问公司

Page Load Speed

32.9 sec in total

First Response

1.2 sec

Resources Loaded

30.9 sec

Page Rendered

664 ms

rbt.cn screenshot

About Website

Click here to check amazing Rbt content for China. Otherwise, check out these important facts you probably never knew about rbt.cn

联为深圳SEO优化公司整合网络营销策划专家,14年精准高效经验的全网营销推广团队,开启网络梦想为目标,专注为企业提供一站式网络营销顾问外包服务:深圳网络推广,网站建设、营销型建站、SEO关键词优化、网站网络推广营销、新闻软文媒体推广等网站营销托管服务。

Visit rbt.cn

Key Findings

We analyzed Rbt.cn page load time and found that the first response time was 1.2 sec and then it took 31.6 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.

Performance Metrics

rbt.cn performance score

14

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.9 s

1/100

10%

LCP (Largest Contentful Paint)

Value28.0 s

0/100

25%

SI (Speed Index)

Value20.1 s

0/100

10%

TBT (Total Blocking Time)

Value4,250 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.092

91/100

15%

TTI (Time to Interactive)

Value28.5 s

0/100

10%

Network Requests Diagram

rbt.cn

1241 ms

www.rbt.cn

2448 ms

jquery.js

8921 ms

header.css

897 ms

combined-3.4.2.min.css

6388 ms

Our browser made a total of 57 requests to load all elements on the main page. We found that 49% of them (28 requests) were addressed to the original Rbt.cn, 28% (16 requests) were made to Qiao.baidu.com and 5% (3 requests) were made to P2.qiao.baidu.com. The less responsive or slowest element that took the longest time to load (19.2 sec) belongs to the original domain Rbt.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 248.2 kB (51%)

Content Size

490.1 kB

After Optimization

241.9 kB

In fact, the total size of Rbt.cn main page is 490.1 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 173.8 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 32.9 kB

  • Original 42.8 kB
  • After minification 42.1 kB
  • After compression 9.9 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 32.9 kB or 77% of the original size.

Image Optimization

-9%

Potential reduce by 15.2 kB

  • Original 173.8 kB
  • After minification 158.6 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. Rbt images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 110.4 kB

  • Original 165.3 kB
  • After minification 165.3 kB
  • After compression 54.9 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 110.4 kB or 67% of the original size.

CSS Optimization

-83%

Potential reduce by 89.7 kB

  • Original 108.2 kB
  • After minification 92.5 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. Rbt.cn needs all CSS files to be minified and compressed as it can save up to 89.7 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 20 (38%)

Requests Now

53

After Optimization

33

The browser has sent 53 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rbt. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

rbt.cn accessibility score

70

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

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

rbt.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

rbt.cn SEO score

92

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

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

    EN

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rbt.cn 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 Rbt.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 Rbt. 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: