Report Summary

  • 36

    Performance

    Renders faster than
    56% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

Page Load Speed

8 sec in total

First Response

895 ms

Resources Loaded

7 sec

Page Rendered

109 ms

vsmart.academy screenshot

About Website

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Key Findings

We analyzed Vsmart.academy page load time and found that the first response time was 895 ms and then it took 7.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

vsmart.academy performance score

36

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.6 s

100/100

10%

LCP (Largest Contentful Paint)

Value6.2 s

11/100

25%

SI (Speed Index)

Value14.9 s

1/100

10%

TBT (Total Blocking Time)

Value2,240 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value6.2 s

62/100

10%

Network Requests Diagram

vsmart.academy

895 ms

webcomponents-loader.js

2712 ms

vaadin-bundle-578cd3d2865f5f64e0fd.cache.js

5165 ms

vaadin-bundle.es5-2e0530ee00f73ef21548.cache.js

4616 ms

vaadinPush-min.js

2323 ms

Our browser made a total of 8 requests to load all elements on the main page. We found that all of those requests were addressed to Vsmart.academy and no external sources were called. The less responsive or slowest element that took the longest time to load (5.2 sec) belongs to the original domain Vsmart.academy.

Page Optimization Overview & Recommendations

Page size can be reduced by 77.5 kB (77%)

Content Size

100.8 kB

After Optimization

23.3 kB

In fact, the total size of Vsmart.academy main page is 100.8 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. 25% of websites need less resources to load. HTML takes 56.5 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 46.6 kB

  • Original 56.5 kB
  • After minification 56.4 kB
  • After compression 9.9 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 46.6 kB or 82% of the original size.

JavaScript Optimization

-70%

Potential reduce by 30.9 kB

  • Original 44.3 kB
  • After minification 44.3 kB
  • After compression 13.3 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 30.9 kB or 70% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (71%)

Requests Now

7

After Optimization

2

The browser has sent 7 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vsmart. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

vsmart.academy accessibility score

82

Accessibility Issues

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-*] attributes do not match their roles

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

Buttons do not have an accessible name

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

vsmart.academy 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

High

Missing source maps for large first-party JavaScript

SEO Factors

vsmart.academy SEO score

83

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

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

    N/A

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vsmart.academy can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is English. Our system also found out that Vsmart.academy 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 description is not detected on the main page of Vsmart. 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: