Tools & Wizards About Us
51mql.org screenshot

Report Summary

  • 75

    Performance

    Renders faster than
    84% of other websites

  • 47

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

51mql.org

煤气发生炉交易网

Page Load Speed

49.4 sec in total

First Response

6.6 sec

Resources Loaded

42.4 sec

Page Rendered

431 ms

51mql.org screenshot

About Website

Visit 51mql.org now to see the best up-to-date 51 Mql content and also check out these interesting facts you probably never knew about 51mql.org

煤气发生炉交易网(原中国煤气发生炉网)是煤气发生炉行业专业门户网站,汇集煤气发生炉,煤气炉,气化炉,窑炉设备等信息资讯,是煤气发生炉供需方主体进行推广合作的专业平台

Visit 51mql.org

Key Findings

We analyzed 51mql.org page load time and found that the first response time was 6.6 sec and then it took 42.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

51mql.org performance score

75

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.4 s

97/100

10%

LCP (Largest Contentful Paint)

Value4.8 s

31/100

25%

SI (Speed Index)

Value7.1 s

31/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value2.6 s

98/100

10%

Network Requests Diagram

51mql.org

6587 ms

jquery.js

3495 ms

jquery.cross-slide.js

2848 ms

css.css

2381 ms

css.css

982 ms

Our browser made a total of 165 requests to load all elements on the main page. We found that 65% of them (107 requests) were addressed to the original 51mql.org, 15% (24 requests) were made to Am1.8610.org and 15% (24 requests) were made to Am2.8610.org. The less responsive or slowest element that took the longest time to load (14.8 sec) belongs to the original domain 51mql.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 119.7 kB (36%)

Content Size

330.2 kB

After Optimization

210.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 51mql.org main page is 330.2 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 199.7 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 77.7 kB

  • Original 88.2 kB
  • After minification 83.2 kB
  • After compression 10.5 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 77.7 kB or 88% of the original size.

Image Optimization

-4%

Potential reduce by 8.5 kB

  • Original 199.7 kB
  • After minification 191.2 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. 51 Mql images are well optimized though.

JavaScript Optimization

-73%

Potential reduce by 16.2 kB

  • Original 22.1 kB
  • After minification 17.2 kB
  • After compression 5.9 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 16.2 kB or 73% of the original size.

CSS Optimization

-86%

Potential reduce by 17.3 kB

  • Original 20.2 kB
  • After minification 15.9 kB
  • After compression 2.9 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. 51mql.org needs all CSS files to be minified and compressed as it can save up to 17.3 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 89 (55%)

Requests Now

162

After Optimization

73

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 162 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 51 Mql. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 28 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

51mql.org

51mql.org

6587 ms

jquery.js

jquery.js

3495 ms

jquery.cross-slide.js

jquery.cross-slide.js

2848 ms

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2381 ms

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771 ms

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10550 ms

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3852 ms

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4035 ms

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3320 ms

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51mql.org

51mql.org

3483 ms

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530 ms

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25 ms

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2484 ms

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2613 ms

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2617 ms

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716 ms

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1855 ms

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2212 ms

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6788 ms

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6010 ms

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522 ms

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480 ms

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14464 ms

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633 ms

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1938 ms

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467 ms

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1723 ms

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507 ms

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596 ms

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7750 ms

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1140 ms

Accessibility Review

51mql.org accessibility score

47

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

51mql.org best practices score

50

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

51mql.org SEO score

62

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 51mql.org 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 51mql.org 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

51mql.org

Open Graph description is not detected on the main page of 51 Mql. 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: