Tools & Wizards About Us
kolostat.com screenshot

Report Summary

  • 14

    Performance

    Renders faster than
    26% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

kolostat.com

Kolostat ~ Mechanical HVAC & Combustion Contractor

Page Load Speed

4.3 sec in total

First Response

189 ms

Resources Loaded

3.7 sec

Page Rendered

410 ms

kolostat.com screenshot

About Website

Click here to check amazing Kolostat content. Otherwise, check out these important facts you probably never knew about kolostat.com

Kolostat is a fully integrated mechanical contractor. Kolostat has been providing high-quality enterprise HVAC solutions since 1927.

Visit kolostat.com

Key Findings

We analyzed Kolostat.com page load time and found that the first response time was 189 ms and then it took 4.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

kolostat.com performance score

14

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.6 s

5/100

10%

LCP (Largest Contentful Paint)

Value30.1 s

0/100

25%

SI (Speed Index)

Value13.3 s

2/100

10%

TBT (Total Blocking Time)

Value870 ms

33/100

30%

CLS (Cumulative Layout Shift)

Value0.436

21/100

15%

TTI (Time to Interactive)

Value19.0 s

3/100

10%

Network Requests Diagram

www.kolostat.com

189 ms

dashicons.min.css

39 ms

elusive.min.css

44 ms

all.min.css

40 ms

foundation-icons.min.css

25 ms

Our browser made a total of 52 requests to load all elements on the main page. We found that 81% of them (42 requests) were addressed to the original Kolostat.com, 4% (2 requests) were made to Fonts.googleapis.com and 4% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (295 ms) relates to the external source Px.ads.linkedin.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 937.1 kB (16%)

Content Size

5.7 MB

After Optimization

4.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Kolostat.com main page is 5.7 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. Only a small number of websites need less resources to load. Images take 5.0 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 188.5 kB

  • Original 223.5 kB
  • After minification 213.3 kB
  • After compression 35.0 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 188.5 kB or 84% of the original size.

Image Optimization

-15%

Potential reduce by 742.4 kB

  • Original 5.0 MB
  • After minification 4.3 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. Obviously, Kolostat needs image optimization as it can save up to 742.4 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-1%

Potential reduce by 2.1 kB

  • Original 371.9 kB
  • After minification 371.9 kB
  • After compression 369.7 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.

CSS Optimization

-4%

Potential reduce by 4.2 kB

  • Original 116.4 kB
  • After minification 112.4 kB
  • After compression 112.2 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. Kolostat.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 30 (64%)

Requests Now

47

After Optimization

17

  • Images
  • JavaScript
  • CSS

The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kolostat. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 17 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.kolostat.com

www.kolostat.com

189 ms

dashicons.min.css

dashicons.min.css

39 ms

elusive.min.css

elusive.min.css

44 ms

all.min.css

all.min.css

40 ms

foundation-icons.min.css

foundation-icons.min.css

25 ms

genericons.min.css

genericons.min.css

39 ms

extra.min.css

extra.min.css

48 ms

styles.css

styles.css

48 ms

frontend.css

frontend.css

50 ms

uaf.css

uaf.css

52 ms

style.min.css

style.min.css

51 ms

if-menu-site.css

if-menu-site.css

54 ms

css

css

46 ms

css

css

45 ms

icomoon.css

icomoon.css

61 ms

cache.skin.css

cache.skin.css

57 ms

js

js

95 ms

email-decode.min.js

email-decode.min.js

32 ms

jquery.min.js

jquery.min.js

73 ms

jquery-migrate.min.js

jquery-migrate.min.js

45 ms

dlm-xhr.min.js

dlm-xhr.min.js

72 ms

miscellaneous-tracking.js

miscellaneous-tracking.js

74 ms

scripts.min.js

scripts.min.js

96 ms

jquery.mobile.js

jquery.mobile.js

73 ms

frontend.js

frontend.js

74 ms

api.js

api.js

72 ms

common.js

common.js

79 ms

motion-effects.js

motion-effects.js

79 ms

gtm.js

gtm.js

274 ms

et-divi-dynamic-2-late.css

et-divi-dynamic-2-late.css

31 ms

kolostat.png

kolostat.png

172 ms

Kolostat-Library-and-Archives-Canada-Project-Net-Zero-HVAC-Our-Role-2.png

Kolostat-Library-and-Archives-Canada-Project-Net-Zero-HVAC-Our-Role-2.png

226 ms

51-482_zoom.jpeg

51-482_zoom.jpeg

227 ms

ashrae_act3.jpg

ashrae_act3.jpg

229 ms

Capture-decran-le-2024-01-15-a-12.42.41.jpg

Capture-decran-le-2024-01-15-a-12.42.41.jpg

231 ms

Quest-ce-que-la-decarbonation-1.jpg

Quest-ce-que-la-decarbonation-1.jpg

227 ms

Kolostat-HVAC-Services-High-Technology-D.jpg

Kolostat-HVAC-Services-High-Technology-D.jpg

229 ms

what-we-d0.png

what-we-d0.png

234 ms

img_mission_over.png

img_mission_over.png

231 ms

partners-kolostat-homepage.jpg

partners-kolostat-homepage.jpg

233 ms

kolostat-300x52.png

kolostat-300x52.png

232 ms

32linkedin.png

32linkedin.png

259 ms

32-fb.png

32-fb.png

259 ms

insight.min.js

insight.min.js

221 ms

recaptcha__en.js

recaptcha__en.js

227 ms

200408053526Century-Gothic-400.woff

200408053526Century-Gothic-400.woff

216 ms

modules.woff

modules.woff

89 ms

Genericons.svg

Genericons.svg

190 ms

8AAnjaY2BgYGQAgosrjpwF0ZcUq9bCaABTzgdAAAA=

8AAnjaY2BgYGQAgosrjpwF0ZcUq9bCaABTzgdAAAA=

63 ms

font

font

248 ms

insight_tag_errors.gif

insight_tag_errors.gif

295 ms

style.min.css

style.min.css

31 ms

Accessibility Review

kolostat.com accessibility score

68

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

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.

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

Image elements do not have [alt] attributes

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

kolostat.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

kolostat.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

High

Image elements do not have [alt] attributes

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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kolostat.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Kolostat.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

kolostat.com

Open Graph data is detected on the main page of Kolostat. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: