Report Summary

  • 28

    Performance

    Renders faster than
    48% of other websites

  • 56

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 58

    SEO

    Google-friendlier than
    20% of websites

clasesdebolsa.com

Clasesdebolsa.- Artículos de economía y formación en trading, bolsa y finanzas.

Page Load Speed

3.4 sec in total

First Response

486 ms

Resources Loaded

1.6 sec

Page Rendered

1.3 sec

clasesdebolsa.com screenshot

About Website

Click here to check amazing Clasesdebolsa content for Spain. Otherwise, check out these important facts you probably never knew about clasesdebolsa.com

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Key Findings

We analyzed Clasesdebolsa.com page load time and found that the first response time was 486 ms and then it took 2.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

clasesdebolsa.com performance score

28

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.8 s

91/100

10%

LCP (Largest Contentful Paint)

Value5.9 s

14/100

25%

SI (Speed Index)

Value45.2 s

0/100

10%

TBT (Total Blocking Time)

Value107,790 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.007

100/100

15%

TTI (Time to Interactive)

Value133.8 s

0/100

10%

Network Requests Diagram

clasesdebolsa.com

486 ms

styles.css

123 ms

urchin.js

4 ms

AC_RunActiveContent.js

132 ms

nuevaCabecera_03.png

188 ms

Our browser made a total of 36 requests to load all elements on the main page. We found that 56% of them (20 requests) were addressed to the original Clasesdebolsa.com, 11% (4 requests) were made to Youtube.com and 8% (3 requests) were made to S.ytimg.com. The less responsive or slowest element that took the longest time to load (1 sec) relates to the external source Pokerdejotas.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 529.9 kB (40%)

Content Size

1.3 MB

After Optimization

785.7 kB

In fact, the total size of Clasesdebolsa.com main page is 1.3 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. 40% of websites need less resources to load. Images take 717.2 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 92.3 kB

  • Original 114.2 kB
  • After minification 91.9 kB
  • After compression 21.9 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. This page needs HTML code to be minified as it can gain 22.3 kB, which is 20% 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 92.3 kB or 81% of the original size.

Image Optimization

-11%

Potential reduce by 79.7 kB

  • Original 717.2 kB
  • After minification 637.6 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. Obviously, Clasesdebolsa needs image optimization as it can save up to 79.7 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-64%

Potential reduce by 145.0 kB

  • Original 227.3 kB
  • After minification 224.3 kB
  • After compression 82.2 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 145.0 kB or 64% of the original size.

CSS Optimization

-83%

Potential reduce by 212.9 kB

  • Original 256.9 kB
  • After minification 253.5 kB
  • After compression 43.9 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. Clasesdebolsa.com needs all CSS files to be minified and compressed as it can save up to 212.9 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (16%)

Requests Now

32

After Optimization

27

The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Clasesdebolsa. 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

clasesdebolsa.com accessibility score

56

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

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

clasesdebolsa.com best practices score

67

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

SEO Factors

clasesdebolsa.com SEO score

58

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

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

Language and Encoding

  • Language Detected

    ES

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Clasesdebolsa.com can be misinterpreted by Google and other search engines. Our service has detected that Spanish 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 Clasesdebolsa.com 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 Clasesdebolsa. 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: