Tools & Wizards About Us
mangahigh.com screenshot

Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

mangahigh.com

Mangahigh | Online Maths Resource | Game Based Learning for Students

Page Load Speed

357 ms in total

First Response

52 ms

Resources Loaded

305 ms

Page Rendered

0 ms

mangahigh.com screenshot

About Website

Visit mangahigh.com now to see the best up-to-date Mangahigh content for United Kingdom and also check out these interesting facts you probably never knew about mangahigh.com

Mangahigh - Where every child finds fun in learning. A digital maths resource for blended learning. Transform your teaching with game-based learning. Used by thousands of students every day.

Visit mangahigh.com

Key Findings

We analyzed Mangahigh.com page load time and found that the first response time was 52 ms and then it took 305 ms to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

mangahigh.com performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

42/100

10%

LCP (Largest Contentful Paint)

Value6.7 s

7/100

25%

SI (Speed Index)

Value5.3 s

58/100

10%

TBT (Total Blocking Time)

Value550 ms

54/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value15.9 s

6/100

10%

Network Requests Diagram

mangahigh.com

52 ms

137 ms

third_party.css

4 ms

main.css

12 ms

css

60 ms

Our browser made a total of 7 requests to load all elements on the main page. We found that 86% of them (6 requests) were addressed to the original Mangahigh.com, 14% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (137 ms) belongs to the original domain Mangahigh.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 175.2 kB (73%)

Content Size

241.4 kB

After Optimization

66.3 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Mangahigh.com main page is 241.4 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. Only 10% of websites need less resources to load. Javascripts take 151.0 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 3.9 kB

  • Original 5.4 kB
  • After minification 5.1 kB
  • After compression 1.5 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 3.9 kB or 72% of the original size.

JavaScript Optimization

-67%

Potential reduce by 100.7 kB

  • Original 151.0 kB
  • After minification 151.0 kB
  • After compression 50.3 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 100.7 kB or 67% of the original size.

CSS Optimization

-83%

Potential reduce by 70.6 kB

  • Original 85.0 kB
  • After minification 84.8 kB
  • After compression 14.5 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. Mangahigh.com needs all CSS files to be minified and compressed as it can save up to 70.6 kB or 83% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

5

After Optimization

5

  • JavaScript
  • CSS

The browser has sent 5 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Mangahigh. According to our analytics all requests are already optimized.

Network Requests Diagram

mangahigh.com

mangahigh.com

52 ms

137 ms

third_party.css

third_party.css

4 ms

main.css

main.css

12 ms

css

css

60 ms

third_party.js

third_party.js

49 ms

main.js

main.js

36 ms

Accessibility Review

mangahigh.com accessibility score

83

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

button, link, and menuitem elements do not have accessible names.

High

[aria-hidden="true"] elements contain focusable descendents

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

Links do not have a discernible name

Best Practices

mangahigh.com 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

Page has valid source maps

SEO Factors

mangahigh.com 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

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Mangahigh.com can be misinterpreted by Google and other search engines. Our service has detected that English 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 Mangahigh.com main page’s claimed encoding is . Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

mangahigh.com

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