Tools & Wizards About Us

Report Summary

  • 55

    Performance

    Renders faster than
    72% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

cea.asn.au

VCE Chemistry | Chemistry Education Association | Australia

Page Load Speed

2.1 sec in total

First Response

88 ms

Resources Loaded

2 sec

Page Rendered

60 ms

About Website

Visit cea.asn.au now to see the best up-to-date Cea content and also check out these interesting facts you probably never knew about cea.asn.au

The Chemistry Education Association promotes and supports the teaching and learning of chemistry in schools

Visit cea.asn.au

Key Findings

We analyzed Cea.asn.au page load time and found that the first response time was 88 ms and then it took 2.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

cea.asn.au performance score

55

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

57/100

10%

LCP (Largest Contentful Paint)

Value4.3 s

43/100

25%

SI (Speed Index)

Value5.1 s

62/100

10%

TBT (Total Blocking Time)

Value610 ms

49/100

30%

CLS (Cumulative Layout Shift)

Value0.011

100/100

15%

TTI (Time to Interactive)

Value10.3 s

24/100

10%

Network Requests Diagram

www.cea.asn.au

88 ms

minified.js

32 ms

focus-within-polyfill.js

31 ms

polyfill.min.js

1313 ms

thunderbolt-commons.3a64b3ed.bundle.min.js

48 ms

Our browser made a total of 40 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Cea.asn.au, 33% (13 requests) were made to Static.parastorage.com and 30% (12 requests) were made to Sentry-next.wixpress.com. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source Polyfill-fastly.io.

Page Optimization Overview & Recommendations

Page size can be reduced by 988.6 kB (67%)

Content Size

1.5 MB

After Optimization

497.3 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Cea.asn.au main page is 1.5 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. 15% of websites need less resources to load. HTML takes 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 981.8 kB

  • Original 1.2 MB
  • After minification 1.2 MB
  • After compression 222.0 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 981.8 kB or 82% of the original size.

Image Optimization

-9%

Potential reduce by 3.1 kB

  • Original 33.7 kB
  • After minification 30.5 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. Cea images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 3.6 kB

  • Original 248.3 kB
  • After minification 248.3 kB
  • After compression 244.7 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. This website has mostly compressed JavaScripts.

Requests Breakdown

Number of requests can be reduced by 10 (38%)

Requests Now

26

After Optimization

16

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cea. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

cea.asn.au accessibility score

88

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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.

Best Practices

cea.asn.au 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

cea.asn.au SEO score

98

Search Engine Optimization Advices

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 Cea.asn.au 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 Cea.asn.au 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

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