Tools & Wizards About Us

Report Summary

  • 69

    Performance

    Renders faster than
    80% of other websites

  • 65

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

xamjc.com

西安煤矿机械有限公司

Page Load Speed

72.4 sec in total

First Response

19.6 sec

Resources Loaded

52.4 sec

Page Rendered

433 ms

About Website

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

西安煤矿机械有限公司（原西安煤矿机械厂,始建于1951年）是我国采煤机设计制造的大型骨干企业。2008年8月，由陕西煤业化工集团有限责任公司与中国中煤能源集团有限公司合作投资进行战略重组。。

Visit xamjc.com

Key Findings

We analyzed Xamjc.com page load time and found that the first response time was 19.6 sec and then it took 52.8 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 27 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

xamjc.com performance score

69

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

74/100

10%

LCP (Largest Contentful Paint)

Value2.5 s

89/100

25%

SI (Speed Index)

Value39.0 s

0/100

10%

TBT (Total Blocking Time)

Value230 ms

86/100

30%

CLS (Cumulative Layout Shift)

Value0.371

29/100

15%

TTI (Time to Interactive)

Value3.5 s

92/100

10%

Network Requests Diagram

xamjc.com

19595 ms

index.css

12732 ms

jquery-1.7.2.min.js

20232 ms

jquery.tabPic.js

7405 ms

web.js

4101 ms

Our browser made a total of 68 requests to load all elements on the main page. We found that 59% of them (40 requests) were addressed to the original Xamjc.com, 25% (17 requests) were made to Sysimages.tq.cn and 3% (2 requests) were made to Wljg.snaic.gov.cn. The less responsive or slowest element that took the longest time to load (20.3 sec) belongs to the original domain Xamjc.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 127.2 kB (59%)

Content Size

215.5 kB

After Optimization

88.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Xamjc.com main page is 215.5 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. 15% of websites need less resources to load. Javascripts take 108.7 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 27.0 kB

  • Original 35.6 kB
  • After minification 30.9 kB
  • After compression 8.6 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 4.6 kB, which is 13% 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 27.0 kB or 76% of the original size.

Image Optimization

-20%

Potential reduce by 12.5 kB

  • Original 63.4 kB
  • After minification 50.9 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, Xamjc needs image optimization as it can save up to 12.5 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-76%

Potential reduce by 82.1 kB

  • Original 108.7 kB
  • After minification 106.6 kB
  • After compression 26.6 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 82.1 kB or 76% of the original size.

CSS Optimization

-73%

Potential reduce by 5.7 kB

  • Original 7.8 kB
  • After minification 6.5 kB
  • After compression 2.1 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. Xamjc.com needs all CSS files to be minified and compressed as it can save up to 5.7 kB or 73% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (45%)

Requests Now

38

After Optimization

21

  • Images
  • JavaScript
  • CSS

The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Xamjc. 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 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

xamjc.com accessibility score

65

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.

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>).

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

xamjc.com best practices score

58

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

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

xamjc.com SEO score

90

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    UTF-8

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

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