Tools & Wizards About Us
virtualclassroom.org screenshot

Report Summary

  • 95

    Performance

    Renders faster than
    93% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 78% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

virtualclassroom.org

Global Virtual Classroom: A Free Online Educational Program

Page Load Speed

975 ms in total

First Response

168 ms

Resources Loaded

724 ms

Page Rendered

83 ms

virtualclassroom.org screenshot

About Website

Click here to check amazing Virtual Classroom content for India. Otherwise, check out these important facts you probably never knew about virtualclassroom.org

The Global Virtual Classroom is a free online educational program to promote communication, collaboration and understanding among students around the world

Visit virtualclassroom.org

Key Findings

We analyzed Virtualclassroom.org page load time and found that the first response time was 168 ms and then it took 807 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

virtualclassroom.org performance score

95

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.4 s

97/100

10%

LCP (Largest Contentful Paint)

Value2.5 s

89/100

25%

SI (Speed Index)

Value2.0 s

99/100

10%

TBT (Total Blocking Time)

Value80 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.0 s

87/100

10%

Network Requests Diagram

virtualclassroom.org

168 ms

virtualclassroom.org

283 ms

1.css

68 ms

baner_hype_generated_script.js

132 ms

gsbi-logo.gif

197 ms

Our browser made a total of 10 requests to load all elements on the main page. We found that 70% of them (7 requests) were addressed to the original Virtualclassroom.org, 20% (2 requests) were made to Ssl.google-analytics.com and 10% (1 request) were made to Translate.google.com. The less responsive or slowest element that took the longest time to load (283 ms) belongs to the original domain Virtualclassroom.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 22.8 kB (27%)

Content Size

83.9 kB

After Optimization

61.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Virtualclassroom.org main page is 83.9 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. Only 5% of websites need less resources to load. Javascripts take 34.3 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 18.2 kB

  • Original 24.7 kB
  • After minification 21.4 kB
  • After compression 6.5 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 3.3 kB, which is 13% 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 18.2 kB or 74% of the original size.

Image Optimization

-7%

Potential reduce by 1.6 kB

  • Original 24.0 kB
  • After minification 22.4 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. Virtual Classroom images are well optimized though.

JavaScript Optimization

-7%

Potential reduce by 2.6 kB

  • Original 34.3 kB
  • After minification 34.3 kB
  • After compression 31.7 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.

CSS Optimization

-53%

Potential reduce by 533 B

  • Original 1.0 kB
  • After minification 1.0 kB
  • After compression 468 B

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. Virtualclassroom.org needs all CSS files to be minified and compressed as it can save up to 533 B or 53% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (38%)

Requests Now

8

After Optimization

5

  • Images
  • JavaScript
  • CSS

The browser has sent 8 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Virtual Classroom. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

virtualclassroom.org

virtualclassroom.org

168 ms

virtualclassroom.org

virtualclassroom.org

283 ms

1.css

1.css

68 ms

baner_hype_generated_script.js

baner_hype_generated_script.js

132 ms

gsbi-logo.gif

gsbi-logo.gif

197 ms

gvclogo.jpg

gvclogo.jpg

241 ms

element.js

element.js

40 ms

HYPE.js

HYPE.js

133 ms

ga.js

ga.js

13 ms

__utm.gif

__utm.gif

12 ms

Accessibility Review

virtualclassroom.org accessibility score

92

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

Best Practices

virtualclassroom.org best practices score

83

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

Serves images with low resolution

SEO Factors

virtualclassroom.org SEO score

62

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

robots.txt is not valid

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 Virtualclassroom.org 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 Virtualclassroom.org 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

virtualclassroom.org

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