Tools & Wizards About Us

Report Summary

  • 64

    Performance

    Renders faster than
    77% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

rzero.com

Sustainable Buildings, Environment & Occupancy Sensors, UV-C | R-Zero

Page Load Speed

2.2 sec in total

First Response

84 ms

Resources Loaded

1.5 sec

Page Rendered

595 ms

About Website

Click here to check amazing R Zero content for United States. Otherwise, check out these important facts you probably never knew about rzero.com

Find best-in-class hospital-grade and environmentally-friendly UV-C disinfection solutions with R-Zero's autonomous UV equipment.

Visit rzero.com

Key Findings

We analyzed Rzero.com page load time and found that the first response time was 84 ms and then it took 2.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

rzero.com performance score

64

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

81/100

10%

LCP (Largest Contentful Paint)

Value2.9 s

82/100

25%

SI (Speed Index)

Value8.4 s

18/100

10%

TBT (Total Blocking Time)

Value380 ms

70/100

30%

CLS (Cumulative Layout Shift)

Value0.291

41/100

15%

TTI (Time to Interactive)

Value6.2 s

62/100

10%

Network Requests Diagram

rzero.com

84 ms

rzero.com

120 ms

1715621853-js6b658c6e906eb4a18bb5998b524b0897b86844f898b0a714783b89c49d5141.js

30 ms

1715621853-js377da7a5dbff39674cf62b4a41062511b181db4caf8ae1ddfdc7e732b38aa9.js

254 ms

js

73 ms

Our browser made a total of 55 requests to load all elements on the main page. We found that 78% of them (43 requests) were addressed to the original Rzero.com, 15% (8 requests) were made to Pages.rzero.com and 2% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (924 ms) relates to the external source Pages.rzero.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 168.2 kB (36%)

Content Size

461.9 kB

After Optimization

293.7 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Rzero.com main page is 461.9 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. HTML takes 197.3 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 158.6 kB

  • Original 197.3 kB
  • After minification 197.1 kB
  • After compression 38.7 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. 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 158.6 kB or 80% of the original size.

JavaScript Optimization

-0%

Potential reduce by 0 B

  • Original 187.5 kB
  • After minification 187.5 kB
  • After compression 187.5 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. This website has mostly compressed JavaScripts.

CSS Optimization

-12%

Potential reduce by 9.6 kB

  • Original 77.2 kB
  • After minification 77.2 kB
  • After compression 67.6 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. Rzero.com needs all CSS files to be minified and compressed as it can save up to 9.6 kB or 12% of the original size.

Requests Breakdown

Number of requests can be reduced by 21 (49%)

Requests Now

43

After Optimization

22

  • Images
  • JavaScript
  • CSS

The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of R Zero. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

rzero.com accessibility score

88

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.

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 IDs are not unique

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

rzero.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

rzero.com SEO score

93

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

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 Rzero.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 Rzero.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

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