Tools & Wizards About Us

Report Summary

  • 88

    Performance

    Renders faster than
    90% of other websites

  • 49

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 58

    SEO

    Google-friendlier than
    20% of websites

cwestc.com

煤炭资讯网--世界煤炭系统唯一进入Alexa世界排名万位、日点击过十万的网站

Page Load Speed

10.3 sec in total

First Response

647 ms

Resources Loaded

9.2 sec

Page Rendered

502 ms

About Website

Click here to check amazing Cwestc content for China. Otherwise, check out these important facts you probably never knew about cwestc.com

煤,煤炭,煤矿,煤炭价格,煤炭市场,煤炭运输,煤炭资讯网,煤炭新闻,煤炭网，二手设备，煤炭供求，煤矿机电设备,煤矿新闻，煤矿人才，煤业技术，校友录，煤价旬报，技术论文，西部煤炭网,追踪能源领域前沿技术、热点动态，解读能源政策与时事，汇聚能源数据统计，传播全球能源资讯；展示、交流、互动并举，讲述能源财富传奇故事；营造能源领域专业门户！

Visit cwestc.com

Key Findings

We analyzed Cwestc.com page load time and found that the first response time was 647 ms and then it took 9.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

cwestc.com performance score

88

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

80/100

10%

LCP (Largest Contentful Paint)

Value2.9 s

81/100

25%

SI (Speed Index)

Value6.1 s

45/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value2.3 s

99/100

10%

Network Requests Diagram

cwestc.com

647 ms

www.cwestc.com

2736 ms

wh.css

629 ms

lrtk.css

423 ms

logo.jpg

1486 ms

Our browser made a total of 50 requests to load all elements on the main page. We found that all of those requests were addressed to Cwestc.com and no external sources were called. The less responsive or slowest element that took the longest time to load (5.8 sec) belongs to the original domain Cwestc.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 176.5 kB (8%)

Content Size

2.3 MB

After Optimization

2.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cwestc.com main page is 2.3 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 40% of websites need less resources to load. Images take 2.1 MB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 123.6 kB

  • Original 139.0 kB
  • After minification 70.4 kB
  • After compression 15.4 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 68.6 kB, which is 49% 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 123.6 kB or 89% of the original size.

Image Optimization

-2%

Potential reduce by 51.9 kB

  • Original 2.1 MB
  • After minification 2.1 MB

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. Cwestc images are well optimized though.

JavaScript Optimization

-13%

Potential reduce by 182 B

  • Original 1.4 kB
  • After minification 1.4 kB
  • After compression 1.3 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 182 B or 13% of the original size.

CSS Optimization

-12%

Potential reduce by 781 B

  • Original 6.3 kB
  • After minification 6.3 kB
  • After compression 5.5 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. Cwestc.com needs all CSS files to be minified and compressed as it can save up to 781 B or 12% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (16%)

Requests Now

45

After Optimization

38

  • Images
  • JavaScript
  • CSS

The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cwestc. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

cwestc.com accessibility score

49

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

Form elements do not have associated labels

High

Links do not have a discernible name

High

<object> elements do not have alternate text

Best Practices

cwestc.com best practices score

58

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

cwestc.com SEO score

58

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

High

Document uses plugins

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 Cwestc.com 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 Cwestc.com 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 Cwestc. 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: