Tools & Wizards About Us

Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

video-corsi.org

Video Corsi Online corsi di informatica, trading, musica e altro

Page Load Speed

14 sec in total

First Response

3.3 sec

Resources Loaded

10 sec

Page Rendered

695 ms

About Website

Click here to check amazing Video Corsi content. Otherwise, check out these important facts you probably never knew about video-corsi.org

Benvenuti in Video-Corsi.org un sito dedicato all'insegnamento e alla formazione online. Videocorsi web di vario genere, corsi di informatica, programmazione, sviluppo siti, wordpress, basic for ...

Visit video-corsi.org

Key Findings

We analyzed Video-corsi.org page load time and found that the first response time was 3.3 sec and then it took 10.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

video-corsi.org performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value12.5 s

0/100

10%

LCP (Largest Contentful Paint)

Value20.6 s

0/100

25%

SI (Speed Index)

Value21.7 s

0/100

10%

TBT (Total Blocking Time)

Value3,140 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.066

97/100

15%

TTI (Time to Interactive)

Value33.9 s

0/100

10%

Network Requests Diagram

www.video-corsi.org

3296 ms

js

63 ms

wp-emoji-release.min.js

158 ms

css

65 ms

global.css

233 ms

Our browser made a total of 106 requests to load all elements on the main page. We found that 61% of them (65 requests) were addressed to the original Video-corsi.org, 15% (16 requests) were made to Fonts.gstatic.com and 7% (7 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (3.3 sec) belongs to the original domain Video-corsi.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.8 MB (11%)

Content Size

16.3 MB

After Optimization

14.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Video-corsi.org main page is 16.3 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. Only a small number of websites need less resources to load. Images take 14.7 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 56.4 kB

  • Original 72.0 kB
  • After minification 69.0 kB
  • After compression 15.6 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 56.4 kB or 78% of the original size.

Image Optimization

-6%

Potential reduce by 909.1 kB

  • Original 14.7 MB
  • After minification 13.8 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. Video Corsi images are well optimized though.

JavaScript Optimization

-45%

Potential reduce by 490.1 kB

  • Original 1.1 MB
  • After minification 1.0 MB
  • After compression 595.7 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 490.1 kB or 45% of the original size.

CSS Optimization

-70%

Potential reduce by 336.1 kB

  • Original 481.1 kB
  • After minification 431.6 kB
  • After compression 145.0 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. Video-corsi.org needs all CSS files to be minified and compressed as it can save up to 336.1 kB or 70% of the original size.

Requests Breakdown

Number of requests can be reduced by 63 (72%)

Requests Now

88

After Optimization

25

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 88 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Video Corsi. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 43 to 1 for JavaScripts and from 22 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

video-corsi.org accessibility score

79

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 input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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.

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

video-corsi.org best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

video-corsi.org SEO score

93

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

    IT

  • Language Claimed

    IT

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Video-corsi.org can be misinterpreted by Google and other search engines. Our service has detected that Italian is used on the page, and it matches the claimed language. Our system also found out that Video-corsi.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

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