Tools & Wizards About Us
skoolbo.co.uk screenshot

Report Summary

  • 10

    Performance

    Renders faster than
    23% of other websites

  • 66

    Accessibility

    Visual factors better than
    that of 32% of websites

  • 69

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

skoolbo.co.uk

Skoolbo - Reading, Writing, Numeracy, Languages, Science and more

Page Load Speed

4.5 sec in total

First Response

225 ms

Resources Loaded

3.9 sec

Page Rendered

378 ms

skoolbo.co.uk screenshot

About Website

Welcome to skoolbo.co.uk homepage info - get ready to check Skoolbo best content for United Kingdom right away, or after learning these important things about skoolbo.co.uk

Skoolbo is a full curriculum learning program for four to ten-year-olds. Children are immersed in an incredible learning world and are highly motivated by the inbuilt rewards. Subjects include Reading...

Visit skoolbo.co.uk

Key Findings

We analyzed Skoolbo.co.uk page load time and found that the first response time was 225 ms and then it took 4.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

skoolbo.co.uk performance score

10

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

30/100

10%

LCP (Largest Contentful Paint)

Value17.0 s

0/100

25%

SI (Speed Index)

Value15.4 s

1/100

10%

TBT (Total Blocking Time)

Value1,460 ms

15/100

30%

CLS (Cumulative Layout Shift)

Value0.519

15/100

15%

TTI (Time to Interactive)

Value24.5 s

1/100

10%

Network Requests Diagram

skoolbo.co.uk

225 ms

jquery.bxslider.css

113 ms

jquery-ui.css

471 ms

jquery-ui.min.css

18 ms

bootstrap.min.css

574 ms

Our browser made a total of 83 requests to load all elements on the main page. We found that 29% of them (24 requests) were addressed to the original Skoolbo.co.uk, 37% (31 requests) were made to Dashboard.skoolbo.co.uk and 13% (11 requests) were made to Skoolbowebcore.s3.amazonaws.com. The less responsive or slowest element that took the longest time to load (2 sec) relates to the external source Dashboard.skoolbo.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.4 MB (46%)

Content Size

3.0 MB

After Optimization

1.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Skoolbo.co.uk main page is 3.0 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. 45% of websites need less resources to load. Javascripts take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 22.8 kB

  • Original 27.4 kB
  • After minification 25.0 kB
  • After compression 4.6 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 22.8 kB or 83% of the original size.

Image Optimization

-1%

Potential reduce by 10.4 kB

  • Original 1.2 MB
  • After minification 1.2 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. Skoolbo images are well optimized though.

JavaScript Optimization

-73%

Potential reduce by 906.6 kB

  • Original 1.2 MB
  • After minification 1.2 MB
  • After compression 342.3 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 906.6 kB or 73% of the original size.

CSS Optimization

-84%

Potential reduce by 432.8 kB

  • Original 513.8 kB
  • After minification 509.6 kB
  • After compression 80.9 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. Skoolbo.co.uk needs all CSS files to be minified and compressed as it can save up to 432.8 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 37 (49%)

Requests Now

76

After Optimization

39

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 76 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Skoolbo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 16 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

skoolbo.co.uk

skoolbo.co.uk

225 ms

jquery.bxslider.css

jquery.bxslider.css

113 ms

jquery-ui.css

jquery-ui.css

471 ms

jquery-ui.min.css

jquery-ui.min.css

18 ms

bootstrap.min.css

bootstrap.min.css

574 ms

style.css

style.css

405 ms

chat.css

chat.css

410 ms

html5.min.js

html5.min.js

8 ms

addEventListener.js

addEventListener.js

334 ms

jquery.min.js

jquery.min.js

600 ms

bootstrap.min.js

bootstrap.min.js

629 ms

jquery-ui.js

jquery-ui.js

949 ms

jquery.bxslider.min.js

jquery.bxslider.min.js

599 ms

jquery.youtube.popup.min.js

jquery.youtube.popup.min.js

681 ms

main.js

main.js

695 ms

registered_schools.js

registered_schools.js

700 ms

jschannel.js

jschannel.js

761 ms

bindChan.js

bindChan.js

700 ms

iframeResizer.js

iframeResizer.js

737 ms

background-tiny.png

background-tiny.png

836 ms

header-tiny.png

header-tiny.png

419 ms

Almost%20a%20Billion%20Answers%20BANNER%20pink.png

Almost%20a%20Billion%20Answers%20BANNER%20pink.png

336 ms

LanguageDragonsBanner-tiny.jpg

LanguageDragonsBanner-tiny.jpg

499 ms

SignUpFREEBannerUK-tiny.jpg

SignUpFREEBannerUK-tiny.jpg

528 ms

video-img.png

video-img.png

530 ms

allwidget

allwidget

792 ms

table

table

469 ms

ga.js

ga.js

20 ms

19bmemogs

19bmemogs

376 ms

__utm.gif

__utm.gif

15 ms

ui-bg_inset-soft_10_285c00_1x100.png

ui-bg_inset-soft_10_285c00_1x100.png

15 ms

feed

feed

1854 ms

bootstrap.min.css

bootstrap.min.css

879 ms

font-awesome.min.css

font-awesome.min.css

373 ms

ace.min.css

ace.min.css

1731 ms

ace-fonts.css

ace-fonts.css

276 ms

iframe

iframe

206 ms

leaderboard

leaderboard

324 ms

new-leaderboard-personalbest.css

new-leaderboard-personalbest.css

374 ms

icons.png

icons.png

36 ms

c2903c42299de47846bcf71f339a175516e11f99

c2903c42299de47846bcf71f339a175516e11f99

63 ms

jquery

jquery

751 ms

jquery1x.min.js

jquery1x.min.js

1026 ms

jquery.lazy.min.js

jquery.lazy.min.js

465 ms

bootstrap.min.js

bootstrap.min.js

874 ms

jquery.countdownTimer.js

jquery.countdownTimer.js

861 ms

moment.min.js

moment.min.js

1207 ms

moment-with-locales.min.js

moment-with-locales.min.js

1955 ms

1458420015864

1458420015864

210 ms

ajax-loader-3.gif

ajax-loader-3.gif

18 ms

165 ms

livescore.css

livescore.css

915 ms

AnalysisAllWidget.css

AnalysisAllWidget.css

897 ms

iframeResizer.contentWindow.js

iframeResizer.contentWindow.js

1148 ms

countUp.min.js

countUp.min.js

1098 ms

42 ms

262 ms

v3

v3

59 ms

SIN.png

SIN.png

91 ms

default-avatar.png

default-avatar.png

191 ms

schools.png

schools.png

209 ms

10k.png

10k.png

264 ms

1M.png

1M.png

332 ms

personalBest.png

personalBest.png

263 ms

avg_improvement.png

avg_improvement.png

490 ms

global-map.png

global-map.png

342 ms

excited-boy-150x150.png

excited-boy-150x150.png

756 ms

Twitter-Logo-1.png

Twitter-Logo-1.png

544 ms

Feature-150x150.png

Feature-150x150.png

808 ms

loader.gif

loader.gif

152 ms

opensans-regular-webfont.woff

opensans-regular-webfont.woff

344 ms

opensans-light-webfont.woff

opensans-light-webfont.woff

345 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

479 ms

SW.png

SW.png

22 ms

WM.png

WM.png

61 ms

YH.png

YH.png

58 ms

NW.png

NW.png

30 ms

SCO.png

SCO.png

29 ms

EA.png

EA.png

12 ms

SE.png

SE.png

33 ms

LD.png

LD.png

46 ms

NE.png

NE.png

29 ms

EM.png

EM.png

32 ms

Accessibility Review

skoolbo.co.uk accessibility score

66

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

Image elements do not have [alt] attributes

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

skoolbo.co.uk best practices score

69

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

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

skoolbo.co.uk SEO score

85

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

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 Skoolbo.co.uk 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 Skoolbo.co.uk 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

skoolbo.co.uk

Open Graph description is not detected on the main page of Skoolbo. 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: