Report Summary

  • 20

    Performance

    Renders faster than
    37% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

virtualstudy.pl

VirtualStudy.pro technologie w zasięgu ręki - Home

Page Load Speed

6.2 sec in total

First Response

474 ms

Resources Loaded

5.5 sec

Page Rendered

222 ms

virtualstudy.pl screenshot

About Website

Click here to check amazing Virtual Study content. Otherwise, check out these important facts you probably never knew about virtualstudy.pl

VirtualStudy.pro - portal na temat wirtualnej nauki, egzaminów, materiałów szkoleniowych, szkoleń informatycznych.

Visit virtualstudy.pl

Key Findings

We analyzed Virtualstudy.pl page load time and found that the first response time was 474 ms and then it took 5.7 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

virtualstudy.pl performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

9/100

10%

LCP (Largest Contentful Paint)

Value5.2 s

24/100

25%

SI (Speed Index)

Value11.9 s

4/100

10%

TBT (Total Blocking Time)

Value4,120 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.136

80/100

15%

TTI (Time to Interactive)

Value21.3 s

1/100

10%

Network Requests Diagram

virtualstudy.pl

474 ms

virtualstudy.pro

387 ms

1537 ms

screen.css

124 ms

module.css

257 ms

Our browser made a total of 108 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Virtualstudy.pl, 72% (78 requests) were made to Virtualstudy.pro and 10% (11 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (1.5 sec) relates to the external source Virtualstudy.pro.

Page Optimization Overview & Recommendations

Page size can be reduced by 128.0 kB (9%)

Content Size

1.5 MB

After Optimization

1.4 MB

In fact, the total size of Virtualstudy.pl main page is 1.5 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. 70% of websites need less resources to load. Images take 1.0 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 59.6 kB

  • Original 73.7 kB
  • After minification 58.2 kB
  • After compression 14.1 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 15.6 kB, which is 21% 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 59.6 kB or 81% of the original size.

Image Optimization

-5%

Potential reduce by 50.7 kB

  • Original 1.0 MB
  • After minification 971.5 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 Study images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 6.1 kB

  • Original 301.3 kB
  • After minification 301.0 kB
  • After compression 295.1 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

-13%

Potential reduce by 11.6 kB

  • Original 87.8 kB
  • After minification 86.0 kB
  • After compression 76.2 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. Virtualstudy.pl needs all CSS files to be minified and compressed as it can save up to 11.6 kB or 13% of the original size.

Requests Breakdown

Number of requests can be reduced by 48 (47%)

Requests Now

103

After Optimization

55

The browser has sent 103 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Virtual Study. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

virtualstudy.pl accessibility score

80

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

Form elements do not have associated labels

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

virtualstudy.pl best practices score

67

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

virtualstudy.pl SEO score

69

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

Language and Encoding

  • Language Detected

    PL

  • Language Claimed

    PL

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Virtualstudy.pl can be misinterpreted by Google and other search engines. Our service has detected that Polish is used on the page, and it matches the claimed language. Our system also found out that Virtualstudy.pl 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 Virtual Study. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: