Tools & Wizards About Us
cookradonsystems.com screenshot

Report Summary

  • 28

    Performance

    Renders faster than
    47% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 78% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

cookradonsystems.com

Home - David Cook's Radon Services

Page Load Speed

2.6 sec in total

First Response

14 ms

Resources Loaded

2 sec

Page Rendered

582 ms

cookradonsystems.com screenshot

About Website

Click here to check amazing Cook Radon Systems content for United States. Otherwise, check out these important facts you probably never knew about cookradonsystems.com

David Cook's Radon Services specializes in keeping the air in your home free from radon. We're dedicated to saving as many lives as possible by reducing radon e

Visit cookradonsystems.com

Key Findings

We analyzed Cookradonsystems.com page load time and found that the first response time was 14 ms and then it took 2.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

cookradonsystems.com performance score

28

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

12/100

10%

LCP (Largest Contentful Paint)

Value5.1 s

25/100

25%

SI (Speed Index)

Value5.9 s

48/100

10%

TBT (Total Blocking Time)

Value5,540 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value13.0 s

12/100

10%

Network Requests Diagram

cookradonsystems.com

14 ms

www.davidcooksradonservices.com

59 ms

www.davidcooksradonservices.com

513 ms

joomla-alert.min.css

47 ms

convertforms.css

76 ms

Our browser made a total of 65 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Cookradonsystems.com, 58% (38 requests) were made to Davidcooksradonservices.com and 15% (10 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (552 ms) relates to the external source Davidcooksradonservices.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 118.9 kB (5%)

Content Size

2.3 MB

After Optimization

2.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cookradonsystems.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. Only a small number of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 48.1 kB

  • Original 60.9 kB
  • After minification 50.5 kB
  • After compression 12.7 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 10.4 kB, which is 17% 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 48.1 kB or 79% of the original size.

Image Optimization

-5%

Potential reduce by 63.6 kB

  • Original 1.3 MB
  • After minification 1.3 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. Cook Radon Systems images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 6.8 kB

  • Original 718.2 kB
  • After minification 718.2 kB
  • After compression 711.4 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

-0%

Potential reduce by 298 B

  • Original 200.5 kB
  • After minification 200.5 kB
  • After compression 200.2 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. Cookradonsystems.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 37 (66%)

Requests Now

56

After Optimization

19

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cook Radon Systems. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 30 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

cookradonsystems.com

cookradonsystems.com

14 ms

www.davidcooksradonservices.com

www.davidcooksradonservices.com

59 ms

www.davidcooksradonservices.com

www.davidcooksradonservices.com

513 ms

joomla-alert.min.css

joomla-alert.min.css

47 ms

convertforms.css

convertforms.css

76 ms

template.css

template.css

76 ms

content.min.css

content.min.css

97 ms

theme.9.css

theme.9.css

144 ms

core.min.js

core.min.js

80 ms

keepalive-es5.min.js

keepalive-es5.min.js

81 ms

messages-es5.min.js

messages-es5.min.js

98 ms

keepalive.min.js

keepalive.min.js

99 ms

messages.min.js

messages.min.js

107 ms

site.js

site.js

107 ms

inputmask.min.js

inputmask.min.js

176 ms

inputmask.js

inputmask.js

121 ms

recaptcha_v2_invisible.js

recaptcha_v2_invisible.js

122 ms

api.js

api.js

37 ms

behaviour.js

behaviour.js

131 ms

analytics.min.js

analytics.min.js

133 ms

uikit.min.js

uikit.min.js

185 ms

uikit-icons-trek.min.js

uikit-icons-trek.min.js

184 ms

theme.js

theme.js

183 ms

js

js

134 ms

smartslider.min.css

smartslider.min.css

182 ms

css

css

34 ms

n2.min.js

n2.min.js

184 ms

smartslider-frontend.min.js

smartslider-frontend.min.js

247 ms

ss-simple.min.js

ss-simple.min.js

247 ms

recaptcha__en_gb.js

recaptcha__en_gb.js

130 ms

j0Ks4NaF3IE

j0Ks4NaF3IE

224 ms

f8U-FdqIf8A

f8U-FdqIf8A

306 ms

David-Cooks-Radon-Services-8cee4531.png

David-Cooks-Radon-Services-8cee4531.png

85 ms

David-Cooks-Radon-Services-91c1f622.png

David-Cooks-Radon-Services-91c1f622.png

85 ms

Apostle-Family-1920x800.jpeg

Apostle-Family-1920x800.jpeg

514 ms

NRPPlogo-NRPP-2021-2023-600px-cf598be3.png

NRPPlogo-NRPP-2021-2023-600px-cf598be3.png

85 ms

AuthorizedProLogo-RadonAway-9be578c0.png

AuthorizedProLogo-RadonAway-9be578c0.png

85 ms

BBB-Logo-Horizontal-15a51998.png

BBB-Logo-Horizontal-15a51998.png

85 ms

1-david-cooks-radon-painted-system-800x600-7fb5fd8c.jpeg

1-david-cooks-radon-painted-system-800x600-7fb5fd8c.jpeg

530 ms

4-IMG_1688-600x800-c6ae0ee0.jpeg

4-IMG_1688-600x800-c6ae0ee0.jpeg

242 ms

5-IMG_1741-600x800-eea8ec9f.jpeg

5-IMG_1741-600x800-eea8ec9f.jpeg

552 ms

Wisconsin-EPA-Radon-Map-7e4a64de.png

Wisconsin-EPA-Radon-Map-7e4a64de.png

270 ms

Illinois-EPA-Radon-Map-2-2536a7e6.jpeg

Illinois-EPA-Radon-Map-2-2536a7e6.jpeg

270 ms

radon-hazard-symbol-b7e52a43.png

radon-hazard-symbol-b7e52a43.png

271 ms

three-credit-cards-andvenmo-476b82e5.png

three-credit-cards-andvenmo-476b82e5.png

530 ms

KFOlCnqEu92Fr1MmSU5fBBc9.ttf

KFOlCnqEu92Fr1MmSU5fBBc9.ttf

118 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

156 ms

js

js

124 ms

analytics.js

analytics.js

196 ms

jizOREVItHgc8qDIbSTKq4XkRg8T88bjFuXOnduhLsWkANDM.ttf

jizOREVItHgc8qDIbSTKq4XkRg8T88bjFuXOnduhLsWkANDM.ttf

114 ms

jizOREVItHgc8qDIbSTKq4XkRg8T88bjFuXOnduhcMWkANDM.ttf

jizOREVItHgc8qDIbSTKq4XkRg8T88bjFuXOnduhcMWkANDM.ttf

163 ms

www-player.css

www-player.css

100 ms

www-embed-player.js

www-embed-player.js

120 ms

base.js

base.js

165 ms

collect

collect

374 ms

www-player.css

www-player.css

225 ms

www-embed-player.js

www-embed-player.js

241 ms

base.js

base.js

264 ms

ad_status.js

ad_status.js

453 ms

QIgJXlTW_ocH5BKR4VvT459F7KnrK51w4wqraUAmDYI.js

QIgJXlTW_ocH5BKR4VvT459F7KnrK51w4wqraUAmDYI.js

354 ms

embed.js

embed.js

306 ms

embed.js

embed.js

30 ms

id

id

26 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

20 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

19 ms

Accessibility Review

cookradonsystems.com accessibility score

92

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.

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

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

cookradonsystems.com best practices score

92

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

Page has valid source maps

SEO Factors

cookradonsystems.com SEO score

85

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

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Page is blocked from indexing

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 Cookradonsystems.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 Cookradonsystems.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

cookradonsystems.com

Open Graph description is not detected on the main page of Cook Radon Systems. 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: