Tools & Wizards About Us
vrworldcongress.com screenshot

Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

vrworldcongress.com

Home | VR World Congress - 11th, 12th, 13th April 2017, Bristol

Page Load Speed

21 sec in total

First Response

1.9 sec

Resources Loaded

17.4 sec

Page Rendered

1.7 sec

vrworldcongress.com screenshot

About Website

Welcome to vrworldcongress.com homepage info - get ready to check VR World Congress best content for United Kingdom right away, or after learning these important things about vrworldcongress.com

VRWC17 was a Bristol-based industry-leading VR conference that brought 1250 from 37 different countries for three jam-packed days with a raft of world-class speakers and exhibitors.

Visit vrworldcongress.com

Key Findings

We analyzed Vrworldcongress.com page load time and found that the first response time was 1.9 sec and then it took 19.1 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

vrworldcongress.com performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value10.9 s

0/100

25%

SI (Speed Index)

Value15.4 s

1/100

10%

TBT (Total Blocking Time)

Value14,800 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value44.2 s

0/100

10%

Network Requests Diagram

vrworldcongress.com

1907 ms

css

31 ms

normalize.css

202 ms

style.css

699 ms

48686.js

40 ms

Our browser made a total of 263 requests to load all elements on the main page. We found that 89% of them (234 requests) were addressed to the original Vrworldcongress.com, 3% (8 requests) were made to Fonts.gstatic.com and 3% (7 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (2.9 sec) belongs to the original domain Vrworldcongress.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.7 MB (14%)

Content Size

12.2 MB

After Optimization

10.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vrworldcongress.com main page is 12.2 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. 80% 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 11.3 MB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 119.0 kB

  • Original 132.7 kB
  • After minification 71.5 kB
  • After compression 13.7 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 61.2 kB, which is 46% 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 119.0 kB or 90% of the original size.

Image Optimization

-10%

Potential reduce by 1.1 MB

  • Original 11.3 MB
  • After minification 10.2 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. VR World Congress images are well optimized though.

JavaScript Optimization

-39%

Potential reduce by 63.5 kB

  • Original 163.8 kB
  • After minification 160.7 kB
  • After compression 100.3 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 63.5 kB or 39% of the original size.

CSS Optimization

-87%

Potential reduce by 466.2 kB

  • Original 537.3 kB
  • After minification 489.2 kB
  • After compression 71.1 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. Vrworldcongress.com needs all CSS files to be minified and compressed as it can save up to 466.2 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (6%)

Requests Now

254

After Optimization

240

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 254 CSS, Javascripts, AJAX and image requests in order to completely render the main page of VR World Congress. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

vrworldcongress.com

vrworldcongress.com

1907 ms

css

css

31 ms

normalize.css

normalize.css

202 ms

style.css

style.css

699 ms

48686.js

48686.js

40 ms

jquery.min.js

jquery.min.js

6 ms

main.js

main.js

201 ms

conversion.js

conversion.js

20 ms

cZ7gGDhBhnk

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headline-sponsor.png

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60 ms

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id

id

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Create

Create

206 ms

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2004 ms

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1671 ms

Accessibility Review

vrworldcongress.com accessibility score

64

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

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

vrworldcongress.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

High

Page has valid source maps

SEO Factors

vrworldcongress.com SEO score

92

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

Image elements do not have [alt] attributes

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vrworldcongress.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 Vrworldcongress.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

vrworldcongress.com

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