Tools & Wizards About Us
clasesdeajedrez.net screenshot

Report Summary

  • 30

    Performance

    Renders faster than
    50% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

clasesdeajedrez.net

Chessable

Page Load Speed

3.1 sec in total

First Response

17 ms

Resources Loaded

2.4 sec

Page Rendered

716 ms

clasesdeajedrez.net screenshot

About Website

Welcome to clasesdeajedrez.net homepage info - get ready to check Clasesdeajedrez best content for Spain right away, or after learning these important things about clasesdeajedrez.net

#1 science-backed chess training app to study openings, tactics, strategy and endgames. Learning chess from top players and coaches made easier. Register 100% free today.

Visit clasesdeajedrez.net

Key Findings

We analyzed Clasesdeajedrez.net page load time and found that the first response time was 17 ms and then it took 3.1 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

clasesdeajedrez.net performance score

30

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value4.0 s

50/100

25%

SI (Speed Index)

Value20.5 s

0/100

10%

TBT (Total Blocking Time)

Value5,310 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value36.2 s

0/100

10%

Network Requests Diagram

clasesdeajedrez.net

17 ms

ichess.es

60 ms

www.chessable.com

418 ms

jquery-3.4.1.slim.min.js

112 ms

webflow-fade-in.js

281 ms

Our browser made a total of 76 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Clasesdeajedrez.net, 93% (71 requests) were made to Chessable.com and 1% (1 request) were made to Ichess.es. The less responsive or slowest element that took the longest time to load (868 ms) relates to the external source Chessable.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 76.7 kB (1%)

Content Size

8.8 MB

After Optimization

8.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Clasesdeajedrez.net main page is 8.8 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 5.9 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 66.9 kB

  • Original 78.4 kB
  • After minification 77.8 kB
  • After compression 11.5 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 66.9 kB or 85% of the original size.

Image Optimization

-0%

Potential reduce by 9.7 kB

  • Original 5.9 MB
  • After minification 5.9 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. Clasesdeajedrez images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 134 B

  • Original 2.8 MB
  • After minification 2.8 MB
  • After compression 2.8 MB

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

-0%

Potential reduce by 0 B

  • Original 126.5 kB
  • After minification 126.5 kB
  • After compression 126.5 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. Clasesdeajedrez.net has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 7 (10%)

Requests Now

69

After Optimization

62

  • Images
  • JavaScript
  • CSS

The browser has sent 69 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Clasesdeajedrez. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

clasesdeajedrez.net

clasesdeajedrez.net

17 ms

ichess.es

ichess.es

60 ms

www.chessable.com

www.chessable.com

418 ms

jquery-3.4.1.slim.min.js

jquery-3.4.1.slim.min.js

112 ms

webflow-fade-in.js

webflow-fade-in.js

281 ms

webflow-modified.js

webflow-modified.js

481 ms

popper-1.16.0.min.js

popper-1.16.0.min.js

272 ms

bootstrap-4.4.1.min.js

bootstrap-4.4.1.min.js

365 ms

main.6fae48d5.99433.js

main.6fae48d5.99433.js

591 ms

main.dfcc1c34.99433.css

main.dfcc1c34.99433.css

159 ms

fbevents.js

fbevents.js

52 ms

css2

css2

92 ms

Chessable-Logo.svg

Chessable-Logo.svg

504 ms

Stars.png

Stars.png

506 ms

Bell_Animation.gif

Bell_Animation.gif

565 ms

Hero-Image-1200px.webp

Hero-Image-1200px.webp

567 ms

Progress-Bar.png

Progress-Bar.png

506 ms

637cf705cdeaad4e4c179174_CheckMark-blue.svg

637cf705cdeaad4e4c179174_CheckMark-blue.svg

568 ms

Profile---Magnus.png

Profile---Magnus.png

567 ms

Profile---Judit.png

Profile---Judit.png

574 ms

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Profile---Anish.png

565 ms

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570 ms

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569 ms

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Profile---Levy.png

571 ms

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572 ms

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599 ms

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572 ms

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575 ms

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574 ms

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577 ms

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576 ms

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645 ms

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580 ms

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578 ms

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657 ms

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669 ms

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662 ms

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659 ms

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784 ms

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748 ms

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763 ms

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763 ms

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760 ms

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783 ms

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844 ms

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868 ms

fa-solid-900.c83278d38c956d17f3a6.ttf

fa-solid-900.c83278d38c956d17f3a6.ttf

713 ms

fa-regular-400.db8fee949b4e19b420a6.ttf

fa-regular-400.db8fee949b4e19b420a6.ttf

369 ms

fa-light-300.8748d2546a3c232867dc.ttf

fa-light-300.8748d2546a3c232867dc.ttf

402 ms

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fa-brands-400.1b102a03e6ed0e711e00.ttf

400 ms

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386 ms

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403 ms

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405 ms

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409 ms

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437 ms

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450 ms

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497 ms

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500 ms

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496 ms

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506 ms

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530 ms

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555 ms

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593 ms

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588 ms

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594 ms

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601 ms

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626 ms

icon_rook.svg

icon_rook.svg

660 ms

icon_hand.svg

icon_hand.svg

649 ms

icon_clock.svg

icon_clock.svg

620 ms

Classroom-Image.png

Classroom-Image.png

773 ms

Responsive-Screens-all2.png

Responsive-Screens-all2.png

619 ms

MathPlus.svg

MathPlus.svg

642 ms

Chessable-Logo-White.svg

Chessable-Logo-White.svg

688 ms

Get-Started-Card.d6a1a9b41e3f4ccc15f9.png

Get-Started-Card.d6a1a9b41e3f4ccc15f9.png

539 ms

qzot1t7g

qzot1t7g

38 ms

Accessibility Review

clasesdeajedrez.net accessibility score

88

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.

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

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

clasesdeajedrez.net best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

clasesdeajedrez.net SEO score

92

Search Engine Optimization Advices

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

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

clasesdeajedrez.net

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