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delozone.com screenshot

Report Summary

  • 28

    Performance

    Renders faster than
    48% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 50% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

delozone.com

Pool Sanitizer Systems - CMP

Page Load Speed

2.1 sec in total

First Response

239 ms

Resources Loaded

1.6 sec

Page Rendered

298 ms

delozone.com screenshot

About Website

Welcome to delozone.com homepage info - get ready to check Delozone best content for United States right away, or after learning these important things about delozone.com

DEL Ozone generators provide Advanced Sanitation Solutions in many applications where clean is critical. Residential and commercial ozone generator products with DEL engineering quality.

Visit delozone.com

Key Findings

We analyzed Delozone.com page load time and found that the first response time was 239 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

delozone.com performance score

28

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.2 s

3/100

10%

LCP (Largest Contentful Paint)

Value7.1 s

6/100

25%

SI (Speed Index)

Value6.4 s

41/100

10%

TBT (Total Blocking Time)

Value1,230 ms

20/100

30%

CLS (Cumulative Layout Shift)

Value0.011

100/100

15%

TTI (Time to Interactive)

Value12.1 s

16/100

10%

Network Requests Diagram

delozone.com

239 ms

www.delozone.com

437 ms

style.css

297 ms

swfobject.js

223 ms

functions.js

224 ms

Our browser made a total of 47 requests to load all elements on the main page. We found that 87% of them (41 requests) were addressed to the original Delozone.com, 4% (2 requests) were made to Googleadservices.com and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (536 ms) belongs to the original domain Delozone.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 126.1 kB (27%)

Content Size

473.1 kB

After Optimization

347.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Delozone.com main page is 473.1 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. 20% of websites need less resources to load. Images take 283.9 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 12.5 kB

  • Original 18.0 kB
  • After minification 17.5 kB
  • After compression 5.4 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 12.5 kB or 70% of the original size.

Image Optimization

-7%

Potential reduce by 19.1 kB

  • Original 283.9 kB
  • After minification 264.8 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. Delozone images are well optimized though.

JavaScript Optimization

-51%

Potential reduce by 75.2 kB

  • Original 147.7 kB
  • After minification 142.2 kB
  • After compression 72.5 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 75.2 kB or 51% of the original size.

CSS Optimization

-82%

Potential reduce by 19.3 kB

  • Original 23.5 kB
  • After minification 18.6 kB
  • After compression 4.3 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. Delozone.com needs all CSS files to be minified and compressed as it can save up to 19.3 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (34%)

Requests Now

41

After Optimization

27

  • Images
  • JavaScript
  • CSS

The browser has sent 41 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Delozone. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

delozone.com

delozone.com

239 ms

www.delozone.com

www.delozone.com

437 ms

style.css

style.css

297 ms

swfobject.js

swfobject.js

223 ms

functions.js

functions.js

224 ms

opentrack.js

opentrack.js

223 ms

jquery-1.4.2.min.js

jquery-1.4.2.min.js

445 ms

style.css

style.css

216 ms

jquery.colorbox-min.js

jquery.colorbox-min.js

289 ms

conversion.js

conversion.js

18 ms

background.png

background.png

223 ms

content_box_bg.png

content_box_bg.png

91 ms

content_bg.png

content_bg.png

90 ms

product_catalog_thumbnail_3.png

product_catalog_thumbnail_3.png

161 ms

get_a_copy_button.png

get_a_copy_button.png

224 ms

latest_blog_posts.png

latest_blog_posts.png

89 ms

blog_post_bg.png

blog_post_bg.png

167 ms

Eclipse_Next_Gen_230x120.jpg

Eclipse_Next_Gen_230x120.jpg

234 ms

banner_ozone_help_you.jpg

banner_ozone_help_you.jpg

310 ms

stay_informed_bg.png

stay_informed_bg.png

233 ms

slideshow_bg.png

slideshow_bg.png

240 ms

home_slide_advanced_sanitation_solutions.png

home_slide_advanced_sanitation_solutions.png

368 ms

home_industries_bg.png

home_industries_bg.png

370 ms

home_industry_food_safety.png

home_industry_food_safety.png

307 ms

home_industry_opl.png

home_industry_opl.png

308 ms

home_industry_aquatics.png

home_industry_aquatics.png

383 ms

home_industry_aquariums.png

home_industry_aquariums.png

379 ms

home_industry_industrial.png

home_industry_industrial.png

382 ms

home_industry_pools.png

home_industry_pools.png

382 ms

del_ozone_logo.png

del_ozone_logo.png

441 ms

nav_divider.gif

nav_divider.gif

441 ms

footer_bg.png

footer_bg.png

506 ms

footer_inner_bg.png

footer_inner_bg.png

508 ms

icon_facebook.png

icon_facebook.png

457 ms

icon_twitter.png

icon_twitter.png

455 ms

icon_linkedin.png

icon_linkedin.png

513 ms

icon_youtube.png

icon_youtube.png

514 ms

icon_slideshare.png

icon_slideshare.png

529 ms

ga.js

ga.js

32 ms

71 ms

controls.png

controls.png

480 ms

border.png

border.png

529 ms

loading_background.png

loading_background.png

530 ms

loading.gif

loading.gif

536 ms

__utm.gif

__utm.gif

16 ms

39 ms

43 ms

Accessibility Review

delozone.com accessibility score

80

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.

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

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

delozone.com best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

delozone.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

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

    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 Delozone.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 Delozone.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

delozone.com

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