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cooltron.com screenshot

Report Summary

  • 68

    Performance

    Renders faster than
    80% of other websites

  • 47

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 58

    SEO

    Google-friendlier than
    21% of websites

cooltron.com

Cooltron Industrial Cooling Fans: Top-Grade DC & AC Fans, Blowers, and Accessories

Page Load Speed

6.2 sec in total

First Response

462 ms

Resources Loaded

5.5 sec

Page Rendered

308 ms

cooltron.com screenshot

About Website

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

Cooltron is leading manufacturer of ball bearing and sleeve of DC/AC axial fans, EC fans, cross flow fans, centrifugal fans and DC/AC blowers. We offer a one-stop cooling solution!

Visit cooltron.com

Key Findings

We analyzed Cooltron.com page load time and found that the first response time was 462 ms and then it took 5.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster. This domain responded with an error, which can significantly jeopardize Cooltron.com rating and web reputation

Performance Metrics

cooltron.com performance score

68

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.7 s

93/100

10%

LCP (Largest Contentful Paint)

Value7.3 s

5/100

25%

SI (Speed Index)

Value4.1 s

80/100

10%

TBT (Total Blocking Time)

Value60 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.054

98/100

15%

TTI (Time to Interactive)

Value7.2 s

51/100

10%

Network Requests Diagram

cooltron.com

462 ms

main.css

86 ms

jquery.js

159 ms

img.js

69 ms

menu.js

44 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that 78% of them (36 requests) were addressed to the original Cooltron.com, 4% (2 requests) were made to Oz.cnzz.com and 4% (2 requests) were made to Cnzz.mmstat.com. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source S11.cnzz.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 186.1 kB (17%)

Content Size

1.1 MB

After Optimization

934.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cooltron.com main page is 1.1 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. 20% of websites need less resources to load. Images take 934.5 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 34.5 kB

  • Original 44.8 kB
  • After minification 44.2 kB
  • After compression 10.2 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 34.5 kB or 77% of the original size.

Image Optimization

-6%

Potential reduce by 55.4 kB

  • Original 934.5 kB
  • After minification 879.1 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. Cooltron images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 80.7 kB

  • Original 121.8 kB
  • After minification 119.9 kB
  • After compression 41.0 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 80.7 kB or 66% of the original size.

CSS Optimization

-81%

Potential reduce by 15.4 kB

  • Original 19.1 kB
  • After minification 15.2 kB
  • After compression 3.7 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. Cooltron.com needs all CSS files to be minified and compressed as it can save up to 15.4 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (17%)

Requests Now

42

After Optimization

35

  • Images
  • JavaScript
  • CSS

The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cooltron. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

cooltron.com

cooltron.com

462 ms

main.css

main.css

86 ms

jquery.js

jquery.js

159 ms

img.js

img.js

69 ms

menu.js

menu.js

44 ms

banner.js

banner.js

84 ms

member.js

member.js

86 ms

logo.png

logo.png

50 ms

share_f.png

share_f.png

29 ms

share_i.png

share_i.png

40 ms

share_y.png

share_y.png

39 ms

search.png

search.png

26 ms

1434077127.jpg

1434077127.jpg

74 ms

1434004450.jpg

1434004450.jpg

74 ms

1434011752.jpg

1434011752.jpg

72 ms

1434004947.jpg

1434004947.jpg

79 ms

1434012164.jpg

1434012164.jpg

110 ms

1434010878.jpg

1434010878.jpg

91 ms

1434077168.jpg

1434077168.jpg

79 ms

1434083585.jpg

1434083585.jpg

180 ms

1434084264.jpg

1434084264.jpg

183 ms

1434076060.jpg

1434076060.jpg

152 ms

bg_lines.png

bg_lines.png

105 ms

1438661857.jpg

1438661857.jpg

198 ms

more.png

more.png

130 ms

main_icon.png

main_icon.png

131 ms

1440576124.jpg

1440576124.jpg

235 ms

network_map.jpg

network_map.jpg

185 ms

ckstr.php

ckstr.php

269 ms

line2.png

line2.png

211 ms

1455871676.jpg

1455871676.jpg

212 ms

1455775819.jpg

1455775819.jpg

229 ms

1450086103.jpg

1450086103.jpg

218 ms

1444714105.jpg

1444714105.jpg

223 ms

faq.jpg

faq.jpg

226 ms

WidgetV3.ashx

WidgetV3.ashx

198 ms

stat.php

stat.php

1432 ms

stat.htm

stat.htm

167 ms

core.php

core.php

1003 ms

9.gif

9.gif

1063 ms

pic1.gif

pic1.gif

646 ms

stat.htm

stat.htm

167 ms

banner_btn.png

banner_btn.png

22 ms

9.gif

9.gif

1105 ms

app.gif

app.gif

1361 ms

app.gif

app.gif

1392 ms

Accessibility Review

cooltron.com accessibility score

47

Accessibility Issues

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>).

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

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

Best Practices

cooltron.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

cooltron.com SEO score

58

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

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

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

cooltron.com

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