Report Summary

  • 59

    Performance

    Renders faster than
    75% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 89% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

zerodensity.tv

Zero Density - Real Time Visual Effects - Virtual Production

Page Load Speed

6.2 sec in total

First Response

337 ms

Resources Loaded

5.2 sec

Page Rendered

683 ms

zerodensity.tv screenshot

About Website

Click here to check amazing Zero Density content for China. Otherwise, check out these important facts you probably never knew about zerodensity.tv

Zero Density provides next generation real-time virtual studio, augmented reality and graphics technologies for broadcast, esports and live events industries.

Visit zerodensity.tv

Key Findings

We analyzed Zerodensity.tv page load time and found that the first response time was 337 ms and then it took 5.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

zerodensity.tv performance score

59

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

15/100

10%

LCP (Largest Contentful Paint)

Value9.5 s

0/100

25%

SI (Speed Index)

Value5.7 s

52/100

10%

TBT (Total Blocking Time)

Value70 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.017

100/100

15%

TTI (Time to Interactive)

Value4.8 s

79/100

10%

Network Requests Diagram

www.zerodensity.tv

337 ms

style-public.min.css

110 ms

autoptimize_single_e6fae855021a88a0067fcc58121c594f.css

87 ms

autoptimize_single_20e8490fab0dcf7557a5c8b54494db6f.css

133 ms

autoptimize_single_359aca8a88b2331aa34ac505acad9911.css

163 ms

Our browser made a total of 144 requests to load all elements on the main page. We found that 88% of them (127 requests) were addressed to the original Zerodensity.tv, 8% (11 requests) were made to Zerodensity-1aca0.kxcdn.com and 2% (3 requests) were made to Use.fontawesome.com. The less responsive or slowest element that took the longest time to load (867 ms) relates to the external source Zerodensity-1aca0.kxcdn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 226.0 kB (7%)

Content Size

3.4 MB

After Optimization

3.2 MB

In fact, the total size of Zerodensity.tv main page is 3.4 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. 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. Images take 2.8 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 170.2 kB

  • Original 205.7 kB
  • After minification 205.6 kB
  • After compression 35.4 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 170.2 kB or 83% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 2.8 MB
  • After minification 2.8 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. Zero Density images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 3.9 kB

  • Original 130.2 kB
  • After minification 130.2 kB
  • After compression 126.3 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

-19%

Potential reduce by 51.9 kB

  • Original 272.7 kB
  • After minification 272.7 kB
  • After compression 220.9 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. Zerodensity.tv needs all CSS files to be minified and compressed as it can save up to 51.9 kB or 19% of the original size.

Requests Breakdown

Number of requests can be reduced by 124 (91%)

Requests Now

137

After Optimization

13

The browser has sent 137 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zero Density. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 73 to 1 for JavaScripts and from 53 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

zerodensity.tv accessibility score

96

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

Best Practices

zerodensity.tv 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

SEO Factors

zerodensity.tv SEO score

83

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

High

robots.txt is not valid

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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zerodensity.tv 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 Zerodensity.tv 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 Zero Density. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: