Tools & Wizards About Us
o3ozone.com screenshot

Report Summary

  • 97

    Performance

    Renders faster than
    94% of other websites

  • 56

    Accessibility

    Visual factors better than
    that of 24% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

o3ozone.com

O3zone - Air and Water Purification Systems

Page Load Speed

935 ms in total

First Response

145 ms

Resources Loaded

328 ms

Page Rendered

462 ms

o3ozone.com screenshot

About Website

Visit o3ozone.com now to see the best up-to-date O 3 Ozone content and also check out these interesting facts you probably never knew about o3ozone.com

O3zone provides air and water purification systems for residential and commercial use.

Visit o3ozone.com

Key Findings

We analyzed O3ozone.com page load time and found that the first response time was 145 ms and then it took 790 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

o3ozone.com performance score

97

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.9 s

100/100

10%

LCP (Largest Contentful Paint)

Value2.2 s

95/100

25%

SI (Speed Index)

Value0.9 s

100/100

10%

TBT (Total Blocking Time)

Value150 ms

94/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.2 s

99/100

10%

Network Requests Diagram

o3ozone.com

145 ms

o3ozone_ozone_generators.jpg

84 ms

home.GIF

115 ms

btn_viewcart_LG.gif

35 ms

1_airsep_oxygen_concentrators.jpg

55 ms

Our browser made a total of 36 requests to load all elements on the main page. We found that 86% of them (31 requests) were addressed to the original O3ozone.com, 8% (3 requests) were made to Paypalobjects.com and 3% (1 request) were made to Google.com. The less responsive or slowest element that took the longest time to load (146 ms) belongs to the original domain O3ozone.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 8.8 kB (6%)

Content Size

143.8 kB

After Optimization

135.0 kB

  • Images
  • JavaScript

In fact, the total size of O3ozone.com main page is 143.8 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 138.0 kB which makes up the majority of the site volume.

HTML Optimization

-0%

Potential reduce by -8 B

  • Original 0 B

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 web page is already compressed.

Image Optimization

-6%

Potential reduce by 8.6 kB

  • Original 138.0 kB
  • After minification 129.4 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. O 3 Ozone images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 140 B

  • Original 5.8 kB
  • After minification 5.8 kB
  • After compression 5.7 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.

Requests Breakdown

We found no issues to fix!

Requests Now

34

After Optimization

34

  • Images
  • JavaScript

The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of O 3 Ozone. According to our analytics all requests are already optimized.

Network Requests Diagram

o3ozone.com

o3ozone.com

145 ms

o3ozone_ozone_generators.jpg

o3ozone_ozone_generators.jpg

84 ms

home.GIF

home.GIF

115 ms

btn_viewcart_LG.gif

btn_viewcart_LG.gif

35 ms

1_airsep_oxygen_concentrators.jpg

1_airsep_oxygen_concentrators.jpg

55 ms

allerair_carbon_hepa_filter_purifier_o3ozone.jpg

allerair_carbon_hepa_filter_purifier_o3ozone.jpg

55 ms

austin_air_sm.gif

austin_air_sm.gif

55 ms

abatement_hepa_scrubber.png

abatement_hepa_scrubber.png

83 ms

pixel.gif

pixel.gif

34 ms

brand

brand

20 ms

smimg_multicard_flip.gif

smimg_multicard_flip.gif

68 ms

o3ozone_paypal_verified.gif

o3ozone_paypal_verified.gif

54 ms

end.gif

end.gif

54 ms

INCLUD1.gif

INCLUD1.gif

86 ms

uv_pro_6800_4000_2700_ozone_generator_sm.jpg

uv_pro_6800_4000_2700_ozone_generator_sm.jpg

88 ms

skunk_odor_ozone.gif

skunk_odor_ozone.gif

109 ms

btn_cart_LG.gif

btn_cart_LG.gif

10 ms

uv_pro_2700_4000.jpg

uv_pro_2700_4000.jpg

63 ms

new_ozone_generator_air_purifier.jpg

new_ozone_generator_air_purifier.jpg

83 ms

s_ozone_generator.jpg

s_ozone_generator.jpg

84 ms

mz_280_air_purifier_ozone_generator.jpg

mz_280_air_purifier_ozone_generator.jpg

102 ms

pro_700_pro_3400_v1_v3_v4_v5.jpg

pro_700_pro_3400_v1_v3_v4_v5.jpg

102 ms

ductzone_300_hvac_air_purifier_ozone_generator.jpg

ductzone_300_hvac_air_purifier_ozone_generator.jpg

102 ms

s_4000_snoa_4.jpg

s_4000_snoa_4.jpg

103 ms

o3o2_8000_cdo_8000_s.jpg

o3o2_8000_cdo_8000_s.jpg

108 ms

v_8000_vmus_4.jpg

v_8000_vmus_4.jpg

122 ms

v_160_vmd_160_air_drier_s.jpg

v_160_vmd_160_air_drier_s.jpg

122 ms

rack_ozone_generators_air_driers_s.jpg

rack_ozone_generators_air_driers_s.jpg

123 ms

airsep.jpg

airsep.jpg

142 ms

digital_monitor.jpg

digital_monitor.jpg

124 ms

o3ozone_ozone_oxygen.jpg

o3ozone_ozone_oxygen.jpg

128 ms

abatement_technologies_mark.jpg

abatement_technologies_mark.jpg

143 ms

index.1.gif

index.1.gif

143 ms

airpura_carbon_voc_smoke_filter_purifier.jpg

airpura_carbon_voc_smoke_filter_purifier.jpg

143 ms

bottom3.gif

bottom3.gif

146 ms

brandjs.js

brandjs.js

18 ms

Accessibility Review

o3ozone.com accessibility score

56

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

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

o3ozone.com best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

SEO Factors

o3ozone.com 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

Links do not have descriptive text

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise O3ozone.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 O3ozone.com main page’s claimed encoding is . 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

o3ozone.com

Open Graph description is not detected on the main page of O 3 Ozone. 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: