Tools & Wizards About Us
maryleboneschool.org screenshot

Report Summary

  • 36

    Performance

    Renders faster than
    55% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

maryleboneschool.org

Marylebone Boys School | Boys School London | Westminster

Page Load Speed

3.9 sec in total

First Response

281 ms

Resources Loaded

3.3 sec

Page Rendered

273 ms

maryleboneschool.org screenshot

About Website

Click here to check amazing Marylebone School content for United Kingdom. Otherwise, check out these important facts you probably never knew about maryleboneschool.org

Marylebone Boys secondary school in London ensures students receive an education of excellence, rooted on a solid academic foundation. Find out more here.

Visit maryleboneschool.org

Key Findings

We analyzed Maryleboneschool.org page load time and found that the first response time was 281 ms and then it took 3.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

maryleboneschool.org performance score

36

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value12.1 s

0/100

10%

LCP (Largest Contentful Paint)

Value14.4 s

0/100

25%

SI (Speed Index)

Value15.2 s

1/100

10%

TBT (Total Blocking Time)

Value390 ms

68/100

30%

CLS (Cumulative Layout Shift)

Value0.005

100/100

15%

TTI (Time to Interactive)

Value18.1 s

3/100

10%

Network Requests Diagram

maryleboneschool.org

281 ms

www.maryleboneschool.org

251 ms

www.maryleboneschool.org

659 ms

cfmessage.js

128 ms

cfajax.js

210 ms

Our browser made a total of 132 requests to load all elements on the main page. We found that 58% of them (77 requests) were addressed to the original Maryleboneschool.org, 21% (28 requests) were made to Bing.com and 4% (5 requests) were made to T0.ssl.ak.dynamic.tiles.virtualearth.net. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Maryleboneschool.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 662.1 kB (38%)

Content Size

1.8 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Maryleboneschool.org main page is 1.8 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 899.4 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 86.2 kB

  • Original 104.2 kB
  • After minification 89.6 kB
  • After compression 17.9 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 14.6 kB, which is 14% 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 86.2 kB or 83% of the original size.

Image Optimization

-37%

Potential reduce by 337.1 kB

  • Original 899.4 kB
  • After minification 562.3 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, Marylebone School needs image optimization as it can save up to 337.1 kB or 37% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-30%

Potential reduce by 198.5 kB

  • Original 665.4 kB
  • After minification 665.2 kB
  • After compression 466.9 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 198.5 kB or 30% of the original size.

CSS Optimization

-44%

Potential reduce by 40.3 kB

  • Original 92.1 kB
  • After minification 91.7 kB
  • After compression 51.8 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. Maryleboneschool.org needs all CSS files to be minified and compressed as it can save up to 40.3 kB or 44% of the original size.

Requests Breakdown

Number of requests can be reduced by 83 (67%)

Requests Now

123

After Optimization

40

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 123 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Marylebone School. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 55 to 1 for JavaScripts and from 30 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

maryleboneschool.org

maryleboneschool.org

281 ms

www.maryleboneschool.org

www.maryleboneschool.org

251 ms

www.maryleboneschool.org

www.maryleboneschool.org

659 ms

cfmessage.js

cfmessage.js

128 ms

cfajax.js

cfajax.js

210 ms

jquery.min.js

jquery.min.js

43 ms

photoswipe.css

photoswipe.css

290 ms

jquery.blue.monday.css

jquery.blue.monday.css

326 ms

audio.css

audio.css

330 ms

klass.min.js

klass.min.js

341 ms

code.photoswipe-3.0.4.min.js

code.photoswipe-3.0.4.min.js

438 ms

main.css

main.css

446 ms

fontawesome-all.css

fontawesome-all.css

371 ms

vegas.min.css

vegas.min.css

404 ms

animate.css

animate.css

414 ms

owl.carousel.min.css

owl.carousel.min.css

419 ms

new-styles-2021.css

new-styles-2021.css

449 ms

forms.css

forms.css

480 ms

plugins.css

plugins.css

495 ms

c4.css

c4.css

500 ms

filtcal.css

filtcal.css

519 ms

share.css

share.css

525 ms

search.css

search.css

527 ms

additions.css

additions.css

558 ms

thickbox.css

thickbox.css

573 ms

slideshow.css

slideshow.css

578 ms

venobox.css

venobox.css

606 ms

venobox.js

venobox.js

609 ms

script.js

script.js

603 ms

home.js

home.js

635 ms

c4Resize.js

c4Resize.js

651 ms

ckeditor.js

ckeditor.js

1137 ms

flowplayer-3.2.12.min.js

flowplayer-3.2.12.min.js

680 ms

jquery.jplayer.min.js

jquery.jplayer.min.js

694 ms

jquery.mousewheel-3.0.4.pack.js

jquery.mousewheel-3.0.4.pack.js

691 ms

jquery-ui.min.js

jquery-ui.min.js

46 ms

jquery.ui.touch.js

jquery.ui.touch.js

715 ms

jquery-ui.css

jquery-ui.css

46 ms

fotorama.css

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732 ms

fotorama.js

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76 ms

jquery-migrate-1.0.0.js

jquery-migrate-1.0.0.js

49 ms

jquery.noty.packaged.min.js

jquery.noty.packaged.min.js

757 ms

js

js

82 ms

css

css

55 ms

thickbox.js

thickbox.js

777 ms

jquery-confirm.min.css

jquery-confirm.min.css

90 ms

jquery-confirm.min.js

jquery-confirm.min.js

95 ms

element.js

element.js

62 ms

mapcontrol

mapcontrol

34 ms

fullcalendar.css

fullcalendar.css

742 ms

mapcontrol

mapcontrol

30 ms

jquery.mmenu.css

jquery.mmenu.css

675 ms

moment.min.js

moment.min.js

597 ms

fullcalendar_front.js

fullcalendar_front.js

639 ms

jquery.cycle.all.js

jquery.cycle.all.js

543 ms

jquery.paroller.min.js

jquery.paroller.min.js

539 ms

modernizr.js

modernizr.js

270 ms

css3-mediaqueries.js

css3-mediaqueries.js

289 ms

device.min.js

device.min.js

339 ms

jquery.mmenu.all.min.js

jquery.mmenu.all.min.js

348 ms

hoverIntent.js

hoverIntent.js

351 ms

superfish.js

superfish.js

368 ms

vegas.js

vegas.js

396 ms

retina.min.js

retina.min.js

421 ms

owl.carousel.min.js

owl.carousel.min.js

435 ms

jquery.matchHeight.min.js

jquery.matchHeight.min.js

80 ms

jquery.bxslider.min.js

jquery.bxslider.min.js

85 ms

analytics.js

analytics.js

71 ms

school-logo.svg

school-logo.svg

125 ms

quicklink_310x260_01.jpg

quicklink_310x260_01.jpg

86 ms

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155 ms

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86 ms

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81 ms

news_default_310x180.jpg

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84 ms

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211 ms

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163 ms

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242 ms

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167 ms

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248 ms

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394 ms

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242 ms

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250 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtr6Hw5aX9-p7K4GLs.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtr6Hw5aX9-p7K4GLs.ttf

65 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCuM73w5aX9-p7K4GLs.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCuM73w5aX9-p7K4GLs.ttf

66 ms

fa-solid-900.woff

fa-solid-900.woff

283 ms

fa-regular-400.woff

fa-regular-400.woff

315 ms

jquery.carouFredSel.js

jquery.carouFredSel.js

273 ms

collect

collect

15 ms

fa-brands-400.woff

fa-brands-400.woff

280 ms

p_tVVIDtFZwwbpXXJkY65-xg6VU.gz.js

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19 ms

7Lrd5Ag15IRatol1u3HCi7M4cWU.gz.js

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37 ms

M_nddef76pTZonvIuGSd9JfSeI0.gz.js

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42 ms

CMNitzEwtKEuCib3GXQbDW0hW1g.css

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116 ms

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43 ms

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41 ms

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47 ms

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47 ms

HQClqcNw2586agHE4mexCVRPr_A.gz.css

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47 ms

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63 ms

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35 ms

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50 ms

fullcalendar.print.css

fullcalendar.print.css

101 ms

Log

Log

70 ms

0313131311033310

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345 ms

instrumentation

instrumentation

257 ms

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272 ms

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Accessibility Review

maryleboneschool.org accessibility score

83

Accessibility Issues

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

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

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

maryleboneschool.org 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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

maryleboneschool.org SEO score

84

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

Links do not have descriptive text

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

High

Tap targets are not sized appropriately

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 Maryleboneschool.org 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 Maryleboneschool.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

maryleboneschool.org

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