Report Summary

  • 51

    Performance

    Renders faster than
    70% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

mathematics.hellam.net

Mathematical Interactivities - Games, Puzzles and other Interactive Multimedia Resources Online for Teachers and Kids - By David Hellam

Page Load Speed

1.6 sec in total

First Response

177 ms

Resources Loaded

1.1 sec

Page Rendered

332 ms

mathematics.hellam.net screenshot

About Website

Visit mathematics.hellam.net now to see the best up-to-date Mathematics Hellam content for United States and also check out these interesting facts you probably never knew about mathematics.hellam.net

Over 50 interactive multimedia resources - mostly online games written in Flash - to help in teaching and learning mathematics.

Visit mathematics.hellam.net

Key Findings

We analyzed Mathematics.hellam.net page load time and found that the first response time was 177 ms and then it took 1.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

mathematics.hellam.net performance score

51

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

72/100

10%

LCP (Largest Contentful Paint)

Value2.5 s

90/100

25%

SI (Speed Index)

Value4.9 s

65/100

10%

TBT (Total Blocking Time)

Value13,190 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.065

97/100

15%

TTI (Time to Interactive)

Value19.4 s

2/100

10%

Network Requests Diagram

mathematics.hellam.net

177 ms

mathsty.css

60 ms

cookieconsent.latest.min.js

27 ms

show_ads.js

25 ms

show_ads_impl.js

100 ms

Our browser made a total of 32 requests to load all elements on the main page. We found that 19% of them (6 requests) were addressed to the original Mathematics.hellam.net, 19% (6 requests) were made to Pagead2.googlesyndication.com and 19% (6 requests) were made to Tpc.googlesyndication.com. The less responsive or slowest element that took the longest time to load (527 ms) relates to the external source Googleads.g.doubleclick.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 72.8 kB (24%)

Content Size

305.4 kB

After Optimization

232.6 kB

In fact, the total size of Mathematics.hellam.net main page is 305.4 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. 25% of websites need less resources to load. Images take 146.8 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 24.0 kB

  • Original 33.0 kB
  • After minification 30.1 kB
  • After compression 9.0 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 24.0 kB or 73% of the original size.

Image Optimization

-17%

Potential reduce by 25.2 kB

  • Original 146.8 kB
  • After minification 121.7 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, Mathematics Hellam needs image optimization as it can save up to 25.2 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-18%

Potential reduce by 22.7 kB

  • Original 124.4 kB
  • After minification 124.4 kB
  • After compression 101.7 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 22.7 kB or 18% of the original size.

CSS Optimization

-84%

Potential reduce by 1.0 kB

  • Original 1.2 kB
  • After minification 955 B
  • After compression 197 B

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. Mathematics.hellam.net needs all CSS files to be minified and compressed as it can save up to 1.0 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (43%)

Requests Now

28

After Optimization

16

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Mathematics Hellam. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

mathematics.hellam.net accessibility score

64

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

[aria-*] attributes do not match their roles

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

mathematics.hellam.net best practices score

58

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

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

mathematics.hellam.net SEO score

67

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

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 Mathematics.hellam.net 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 Mathematics.hellam.net 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

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