Tools & Wizards About Us
chester.es screenshot

Report Summary

  • 8

    Performance

    Renders faster than
    22% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

chester.es

Academia de inglés en Madrid - Cursos de inglés Chester School of English

Page Load Speed

6.8 sec in total

First Response

354 ms

Resources Loaded

6.3 sec

Page Rendered

206 ms

chester.es screenshot

About Website

Welcome to chester.es homepage info - get ready to check Chester best content right away, or after learning these important things about chester.es

Academia de inglés en Madrid centro, nuestra escuela representa el estilo más avanzado de enseñanza en inglés desde 1986. Los mejores cursos de inglés en Madrid.

Visit chester.es

Key Findings

We analyzed Chester.es page load time and found that the first response time was 354 ms and then it took 6.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

chester.es performance score

8

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

11/100

10%

LCP (Largest Contentful Paint)

Value13.4 s

0/100

25%

SI (Speed Index)

Value15.4 s

0/100

10%

TBT (Total Blocking Time)

Value1,250 ms

19/100

30%

CLS (Cumulative Layout Shift)

Value1.067

2/100

15%

TTI (Time to Interactive)

Value13.3 s

12/100

10%

Network Requests Diagram

chester.es

354 ms

chester.es

3964 ms

css

44 ms

layerslider.css

329 ms

styles.css

345 ms

Our browser made a total of 93 requests to load all elements on the main page. We found that 84% of them (78 requests) were addressed to the original Chester.es, 13% (12 requests) were made to Fonts.gstatic.com and 2% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (4 sec) belongs to the original domain Chester.es.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (49%)

Content Size

2.4 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Chester.es main page is 2.4 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. 60% of websites need less resources to load. HTML takes 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 1.2 MB

  • Original 1.3 MB
  • After minification 1.3 MB
  • After compression 184.5 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 1.2 MB or 86% of the original size.

Image Optimization

-2%

Potential reduce by 10.9 kB

  • Original 710.2 kB
  • After minification 699.2 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. Chester images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 528 B

  • Original 289.3 kB
  • After minification 289.3 kB
  • After compression 288.8 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

-2%

Potential reduce by 1.2 kB

  • Original 71.2 kB
  • After minification 71.2 kB
  • After compression 69.9 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. Chester.es has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 63 (81%)

Requests Now

78

After Optimization

15

  • Images
  • JavaScript
  • CSS

The browser has sent 78 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chester. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 57 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

chester.es

chester.es

354 ms

chester.es

chester.es

3964 ms

css

css

44 ms

layerslider.css

layerslider.css

329 ms

styles.css

styles.css

345 ms

dashicons.min.css

dashicons.min.css

448 ms

cookieblocker.min.css

cookieblocker.min.css

345 ms

modern.css

modern.css

346 ms

jquery.min.js

jquery.min.js

550 ms

jquery-migrate.min.js

jquery-migrate.min.js

460 ms

layerslider.utils.js

layerslider.utils.js

578 ms

layerslider.kreaturamedia.jquery.js

layerslider.kreaturamedia.jquery.js

714 ms

layerslider.transitions.js

layerslider.transitions.js

563 ms

js

js

84 ms

style.min.css

style.min.css

464 ms

style.min.css

style.min.css

582 ms

index.js

index.js

557 ms

index.js

index.js

560 ms

complianz.min.js

complianz.min.js

582 ms

migrate.min.js

migrate.min.js

585 ms

awb-tabs-widget.js

awb-tabs-widget.js

685 ms

awb-vertical-menu-widget.js

awb-vertical-menu-widget.js

684 ms

cssua.js

cssua.js

727 ms

modernizr.js

modernizr.js

732 ms

fusion.js

fusion.js

755 ms

swiper.js

swiper.js

774 ms

bootstrap.transition.js

bootstrap.transition.js

785 ms

bootstrap.tooltip.js

bootstrap.tooltip.js

790 ms

jquery.requestAnimationFrame.js

jquery.requestAnimationFrame.js

844 ms

jquery.easing.js

jquery.easing.js

842 ms

jquery.fitvids.js

jquery.fitvids.js

843 ms

jquery.flexslider.js

jquery.flexslider.js

857 ms

jquery.ilightbox.js

jquery.ilightbox.js

895 ms

jquery.mousewheel.js

jquery.mousewheel.js

904 ms

jquery.placeholder.js

jquery.placeholder.js

959 ms

jquery.fade.js

jquery.fade.js

957 ms

fusion-parallax.js

fusion-parallax.js

961 ms

fusion-video-general.js

fusion-video-general.js

972 ms

fusion-video-bg.js

fusion-video-bg.js

1008 ms

fusion-lightbox.js

fusion-lightbox.js

805 ms

fusion-tooltip.js

fusion-tooltip.js

844 ms

fusion-sharing-box.js

fusion-sharing-box.js

848 ms

jquery.sticky-kit.js

jquery.sticky-kit.js

850 ms

avada-general-footer.js

avada-general-footer.js

755 ms

avada-quantity.js

avada-quantity.js

789 ms

avada-crossfade-images.js

avada-crossfade-images.js

788 ms

avada-select.js

avada-select.js

744 ms

avada-contact-form-7.js

avada-contact-form-7.js

744 ms

avada-live-search.js

avada-live-search.js

746 ms

fusion-alert.js

fusion-alert.js

726 ms

fusion-flexslider.js

fusion-flexslider.js

689 ms

fusion-animations.js

fusion-animations.js

689 ms

awb-background-slider.js

awb-background-slider.js

735 ms

fusion-container.js

fusion-container.js

735 ms

avada-drop-down.js

avada-drop-down.js

745 ms

gtm.js

gtm.js

81 ms

avada-to-top.js

avada-to-top.js

685 ms

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31 ms

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56 ms

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94 ms

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94 ms

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TK3_WkUHHAIjg75cFRf3bXL8LICs1y9osUZiYA.ttf

111 ms

TK3_WkUHHAIjg75cFRf3bXL8LICs1xZosUZiYA.ttf

TK3_WkUHHAIjg75cFRf3bXL8LICs1xZosUZiYA.ttf

112 ms

avada-header.js

avada-header.js

672 ms

avada-menu.js

avada-menu.js

674 ms

bootstrap.scrollspy.js

bootstrap.scrollspy.js

704 ms

avada-scrollspy.js

avada-scrollspy.js

679 ms

fusion-responsive-typography.js

fusion-responsive-typography.js

694 ms

fusion-scroll-to-anchor.js

fusion-scroll-to-anchor.js

674 ms

fusion-general-global.js

fusion-general-global.js

682 ms

fusion-video.js

fusion-video.js

685 ms

fusion-column.js

fusion-column.js

706 ms

LOGO-1.gif

LOGO-1.gif

812 ms

Summer24-Sea-1500x1000-1.jpg

Summer24-Sea-1500x1000-1.jpg

908 ms

Veranos24-Principal-Circles.png

Veranos24-Principal-Circles.png

1430 ms

escuela-ingles-madrid.jpg

escuela-ingles-madrid.jpg

852 ms

academia-ingles-madrid.png

academia-ingles-madrid.png

849 ms

Arrow-Green-Down.png

Arrow-Green-Down.png

791 ms

1-Extensivo360-225.jpg

1-Extensivo360-225.jpg

793 ms

2-Intensivo360-225.jpg

2-Intensivo360-225.jpg

878 ms

6-Particulares360-225.jpg

6-Particulares360-225.jpg

877 ms

3-Ingles-Online360-225.jpg

3-Ingles-Online360-225.jpg

831 ms

4-Universidad-Cambridge360-225.jpg

4-Universidad-Cambridge360-225.jpg

830 ms

5-Ninos360-225.jpg

5-Ninos360-225.jpg

800 ms

CHESTER-CERTS-FOOTER-0917.jpg

CHESTER-CERTS-FOOTER-0917.jpg

849 ms

picturefill.min.js

picturefill.min.js

313 ms

awb-icons.woff

awb-icons.woff

309 ms

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7 ms

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8 ms

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21 ms

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22 ms

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21 ms

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23 ms

Accessibility Review

chester.es accessibility score

79

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

chester.es best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

chester.es 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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Chester.es 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 Chester.es 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

chester.es

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