Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 55% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

rdoip.com

半岛电子官方网站股份有限公司-半岛电子官方网站股份有限公司

Page Load Speed

268 ms in total

First Response

85 ms

Resources Loaded

99 ms

Page Rendered

84 ms

rdoip.com screenshot

About Website

Visit rdoip.com now to see the best up-to-date Rdoip content and also check out these interesting facts you probably never knew about rdoip.com

半岛电子官方网站股份有限公司(中国)有限公司于2017年11月28日正式挂牌成立,是经党中央、国务院批准,由中国国电集团公司和神华集团有限责任公司联合重组而成的中央骨干能源企业,是国有资本投资公司改革、创建世界一流示范企业的试点企业,拥有煤炭、电力、运输、化工等全产业链业务,产业分布在全国31个省区市以及美国、加拿大等10多个国家和地区,是全球规模最大的煤炭生产公司、火力发电公司、风力发电公司和煤...

Visit rdoip.com

Key Findings

We analyzed Rdoip.com page load time and found that the first response time was 85 ms and then it took 183 ms 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. This domain responded with an error, which can significantly jeopardize Rdoip.com rating and web reputation

Performance Metrics

rdoip.com performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.0 s

9/100

10%

LCP (Largest Contentful Paint)

Value13.6 s

0/100

25%

SI (Speed Index)

Value7.2 s

30/100

10%

TBT (Total Blocking Time)

Value980 ms

28/100

30%

CLS (Cumulative Layout Shift)

Value0.319

36/100

15%

TTI (Time to Interactive)

Value11.9 s

16/100

10%

Network Requests Diagram

rdoip.com

85 ms

Our browser made a total of 1 request to load all elements on the main page. We found that all of those requests were addressed to Rdoip.com and no external sources were called. The less responsive or slowest element that took the longest time to load (85 ms) belongs to the original domain Rdoip.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 531 B (0%)

Content Size

447.7 kB

After Optimization

447.2 kB

In fact, the total size of Rdoip.com main page is 447.7 kB. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. Images take 424.0 kB which makes up the majority of the site volume.

HTML Optimization

-28%

Potential reduce by 47 B

  • Original 165 B
  • After minification 163 B
  • After compression 118 B

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 47 B or 28% of the original size.

Image Optimization

-0%

Potential reduce by 327 B

  • Original 424.0 kB
  • After minification 423.7 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. Rdoip images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 157 B

  • Original 23.6 kB
  • After minification 23.6 kB
  • After compression 23.4 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. This website has mostly compressed JavaScripts.

Requests Breakdown

We found no issues to fix!

Requests Now

0

After Optimization

0

Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.

Accessibility Review

rdoip.com accessibility score

83

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

rdoip.com 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

rdoip.com SEO score

86

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

Links do not have descriptive text

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

    EN

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rdoip.com can be misinterpreted by Google and other search engines. Our service has detected that English 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 Rdoip.com main page’s claimed encoding is . 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 Rdoip. 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: