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prl.curso-online.net screenshot

Report Summary

  • 46

    Performance

    Renders faster than
    65% of other websites

  • 61

    Accessibility

    Visual factors better than
    that of 27% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

prl.curso-online.net

Plataforma de Formación

Page Load Speed

4.3 sec in total

First Response

924 ms

Resources Loaded

3.3 sec

Page Rendered

96 ms

prl.curso-online.net screenshot

About Website

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Key Findings

We analyzed Prl.curso-online.net page load time and found that the first response time was 924 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

prl.curso-online.net performance score

46

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.0 s

0/100

10%

LCP (Largest Contentful Paint)

Value9.2 s

1/100

25%

SI (Speed Index)

Value9.2 s

13/100

10%

TBT (Total Blocking Time)

Value220 ms

88/100

30%

CLS (Cumulative Layout Shift)

Value0.009

100/100

15%

TTI (Time to Interactive)

Value10.0 s

27/100

10%

Network Requests Diagram

prl.curso-online.net

924 ms

normalize.min.css

150 ms

main.css

851 ms

modernizr-2.6.2.min.js

410 ms

jquery-1.9.1.min.js

739 ms

Our browser made a total of 14 requests to load all elements on the main page. We found that 43% of them (6 requests) were addressed to the original Prl.curso-online.net, 14% (2 requests) were made to Updateyourbrowser.net and 14% (2 requests) were made to Test.preventoronline.com. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source Test.preventoronline.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 354.7 kB (66%)

Content Size

539.3 kB

After Optimization

184.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Prl.curso-online.net main page is 539.3 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. 15% of websites need less resources to load. CSS take 230.9 kB which makes up the majority of the site volume.

HTML Optimization

-60%

Potential reduce by 6.3 kB

  • Original 10.6 kB
  • After minification 9.7 kB
  • After compression 4.3 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 6.3 kB or 60% of the original size.

Image Optimization

-1%

Potential reduce by 1.4 kB

  • Original 93.4 kB
  • After minification 92.0 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. Prl Curso Online images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 138.3 kB

  • Original 204.5 kB
  • After minification 186.6 kB
  • After compression 66.2 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 138.3 kB or 68% of the original size.

CSS Optimization

-90%

Potential reduce by 208.7 kB

  • Original 230.9 kB
  • After minification 187.3 kB
  • After compression 22.2 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. Prl.curso-online.net needs all CSS files to be minified and compressed as it can save up to 208.7 kB or 90% of the original size.

Requests Breakdown

Number of requests can be reduced by 4 (33%)

Requests Now

12

After Optimization

8

  • Images
  • JavaScript
  • CSS

The browser has sent 12 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Prl Curso Online. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

prl.curso-online.net

prl.curso-online.net

924 ms

normalize.min.css

normalize.min.css

150 ms

main.css

main.css

851 ms

modernizr-2.6.2.min.js

modernizr-2.6.2.min.js

410 ms

jquery-1.9.1.min.js

jquery-1.9.1.min.js

739 ms

main.js

main.js

434 ms

asn2.js

asn2.js

9 ms

asn2.js

asn2.js

7 ms

css

css

23 ms

479Cap.jpg

479Cap.jpg

1424 ms

479menuPublic.png

479menuPublic.png

886 ms

analytics.js

analytics.js

8 ms

collect

collect

4 ms

collect

collect

65 ms

Accessibility Review

prl.curso-online.net accessibility score

61

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

Document doesn't have a <title> element

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

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 IDs are not unique

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

prl.curso-online.net best practices score

58

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

Displays images with incorrect aspect ratio

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

prl.curso-online.net SEO score

83

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

Document doesn't have a <title> element

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

    N/A

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Prl.curso-online.net 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) and no language is claimed in <html> or <meta> tags either. Our system also found out that Prl.curso-online.net 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

prl.curso-online.net

Open Graph description is not detected on the main page of Prl Curso Online. 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: