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coroneos.com.au screenshot

Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

coroneos.com.au

Coroneos Publications | Coroneos Publications

Page Load Speed

3 sec in total

First Response

466 ms

Resources Loaded

2.3 sec

Page Rendered

294 ms

coroneos.com.au screenshot

About Website

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

Coroneos Publications was started by Jim Coroneos, one of Australia’s leading mathematics authors, from Primary School to the end of Secondary School.

Visit coroneos.com.au

Key Findings

We analyzed Coroneos.com.au page load time and found that the first response time was 466 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

coroneos.com.au performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value10.6 s

0/100

10%

LCP (Largest Contentful Paint)

Value11.7 s

0/100

25%

SI (Speed Index)

Value11.8 s

4/100

10%

TBT (Total Blocking Time)

Value2,110 ms

7/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value20.5 s

2/100

10%

Network Requests Diagram

coroneos.com.au

466 ms

www.coroneos.com.au

518 ms

calendar.css

8 ms

styles-m.css

35 ms

bar-main.css

11 ms

Our browser made a total of 158 requests to load all elements on the main page. We found that 99% of them (157 requests) were addressed to the original Coroneos.com.au, 1% (1 request) were made to Fivesenseseducation.com.au. The less responsive or slowest element that took the longest time to load (972 ms) belongs to the original domain Coroneos.com.au.

Page Optimization Overview & Recommendations

Page size can be reduced by 255.0 kB (25%)

Content Size

1.0 MB

After Optimization

774.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Coroneos.com.au main page is 1.0 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. 65% of websites need less resources to load. Images take 408.5 kB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 163.8 kB

  • Original 182.4 kB
  • After minification 140.4 kB
  • After compression 18.5 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. This page needs HTML code to be minified as it can gain 42.0 kB, which is 23% 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 163.8 kB or 90% of the original size.

Image Optimization

-2%

Potential reduce by 6.2 kB

  • Original 408.5 kB
  • After minification 402.3 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. Coroneos images are well optimized though.

JavaScript Optimization

-12%

Potential reduce by 27.2 kB

  • Original 232.6 kB
  • After minification 232.5 kB
  • After compression 205.4 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 27.2 kB or 12% of the original size.

CSS Optimization

-28%

Potential reduce by 57.8 kB

  • Original 205.9 kB
  • After minification 205.6 kB
  • After compression 148.1 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. Coroneos.com.au needs all CSS files to be minified and compressed as it can save up to 57.8 kB or 28% of the original size.

Requests Breakdown

Number of requests can be reduced by 113 (75%)

Requests Now

151

After Optimization

38

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 151 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Coroneos. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 107 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

coroneos.com.au

coroneos.com.au

466 ms

www.coroneos.com.au

www.coroneos.com.au

518 ms

calendar.css

calendar.css

8 ms

styles-m.css

styles-m.css

35 ms

bar-main.css

bar-main.css

11 ms

blog-m.css

blog-m.css

10 ms

blog-new.css

blog-new.css

12 ms

blog-custom.css

blog-custom.css

8 ms

styles-l.css

styles-l.css

14 ms

require.min.js

require.min.js

78 ms

requirejs-min-resolver.min.js

requirejs-min-resolver.min.js

33 ms

mixins.min.js

mixins.min.js

32 ms

requirejs-config.min.js

requirejs-config.min.js

81 ms

scripts.min.js

scripts.min.js

87 ms

header-top-bg.jpg

header-top-bg.jpg

273 ms

header-star.png

header-star.png

241 ms

logo.svg

logo.svg

254 ms

logo-md.png

logo-md.png

9 ms

jquery.min.js

jquery.min.js

8 ms

common.min.js

common.min.js

230 ms

dataPost.min.js

dataPost.min.js

230 ms

bootstrap.min.js

bootstrap.min.js

218 ms

app.min.js

app.min.js

219 ms

form-key-provider.min.js

form-key-provider.min.js

218 ms

messages.min.js

messages.min.js

218 ms

mage-translation-dictionary.min.js

mage-translation-dictionary.min.js

218 ms

theme.min.js

theme.min.js

218 ms

opensans-400.woff

opensans-400.woff

400 ms

opensans-300.woff

opensans-300.woff

492 ms

opensans-600.woff

opensans-600.woff

447 ms

opensans-700.woff

opensans-700.woff

491 ms

jquery-migrate.min.js

jquery-migrate.min.js

232 ms

Icon.png

Icon.png

375 ms

image-fivesenses-larger.jpg

image-fivesenses-larger.jpg

414 ms

icon-truck.svg

icon-truck.svg

374 ms

arrow.svg

arrow.svg

542 ms

hr.png

hr.png

354 ms

cor266_early_basic_skills_1_nsw.jpg

cor266_early_basic_skills_1_nsw.jpg

354 ms

cor173_basic_skills_giant_book_of_reading_comprehension_tests_yrs_5_8.jpg

cor173_basic_skills_giant_book_of_reading_comprehension_tests_yrs_5_8.jpg

310 ms

9781862941588_basic_skills_148_advanced_written_expression_yrs_8_to_10_.jpg

9781862941588_basic_skills_148_advanced_written_expression_yrs_8_to_10_.jpg

311 ms

9781862941359_basic_skills_125_year_4_tests_o.c._multiple_choice_yrs_4_5_.jpg

9781862941359_basic_skills_125_year_4_tests_o.c._multiple_choice_yrs_4_5_.jpg

311 ms

cor81_general_aptitude_tests_for_selective_yrs_5_8_1.jpg

cor81_general_aptitude_tests_for_selective_yrs_5_8_1.jpg

312 ms

cor143_easy-learn_maths_7b.jpg

cor143_easy-learn_maths_7b.jpg

313 ms

cor142_easy-learn_maths_7a.jpg

cor142_easy-learn_maths_7a.jpg

313 ms

cor131_easy-learn_maths_1b.jpg

cor131_easy-learn_maths_1b.jpg

313 ms

cor130_easy-learn_maths_1a.jpg

cor130_easy-learn_maths_1a.jpg

324 ms

cor87_written_expression_for_selective_schools_scholarship_exams_yrs_5_8.jpg

cor87_written_expression_for_selective_schools_scholarship_exams_yrs_5_8.jpg

325 ms

cor176_giant_book_of_general_ability_tests.jpg

cor176_giant_book_of_general_ability_tests.jpg

326 ms

cor49_maths_tests_for_selective_schools_scholarship_exams_yrs_5_8.jpg

cor49_maths_tests_for_selective_schools_scholarship_exams_yrs_5_8.jpg

327 ms

9781862941076_cor42_further_mathematics_tests_years_5-8.jpg

9781862941076_cor42_further_mathematics_tests_years_5-8.jpg

327 ms

cor210_excellence_in_general_ability_5.jpg

cor210_excellence_in_general_ability_5.jpg

328 ms

cor209_excellence_in_general_ability_4.jpg

cor209_excellence_in_general_ability_4.jpg

330 ms

mfblogunveil.min.js

mfblogunveil.min.js

330 ms

domReady.min.js

domReady.min.js

279 ms

texture.jpg

texture.jpg

487 ms

list-item.svg

list-item.svg

972 ms

social-facebook.svg

social-facebook.svg

513 ms

payment-visa.png

payment-visa.png

311 ms

jquery-mixin.min.js

jquery-mixin.min.js

311 ms

Blank-Theme-Icons.woff

Blank-Theme-Icons.woff

511 ms

main.min.js

main.min.js

306 ms

bootstrap.min.js

bootstrap.min.js

299 ms

mage.min.js

mage.min.js

288 ms

translate.min.js

translate.min.js

287 ms

text.min.js

text.min.js

272 ms

smart-keyboard-handler.min.js

smart-keyboard-handler.min.js

115 ms

ie-class-fixer.min.js

ie-class-fixer.min.js

70 ms

types.min.js

types.min.js

70 ms

layout.min.js

layout.min.js

72 ms

template.min.js

template.min.js

73 ms

confirm.min.js

confirm.min.js

75 ms

widget.min.js

widget.min.js

76 ms

payment-mastercard.png

payment-mastercard.png

77 ms

payment-paypal.png

payment-paypal.png

80 ms

logo-wq.svg

logo-wq.svg

939 ms

wrapper.min.js

wrapper.min.js

129 ms

underscore.min.js

underscore.min.js

131 ms

knockout.min.js

knockout.min.js

138 ms

knockout-es5.min.js

knockout-es5.min.js

145 ms

js-translation.json

js-translation.json

143 ms

scripts.min.js

scripts.min.js

141 ms

engine.min.js

engine.min.js

144 ms

bootstrap.min.js

bootstrap.min.js

144 ms

observable_array.min.js

observable_array.min.js

148 ms

bound-nodes.min.js

bound-nodes.min.js

148 ms

main.min.js

main.min.js

149 ms

registry.min.js

registry.min.js

158 ms

modal.min.js

modal.min.js

154 ms

console-logger.min.js

console-logger.min.js

154 ms

version.min.js

version.min.js

148 ms

knockout-repeat.min.js

knockout-repeat.min.js

15 ms

knockout-fast-foreach.min.js

knockout-fast-foreach.min.js

23 ms

observable_source.min.js

observable_source.min.js

22 ms

renderer.min.js

renderer.min.js

22 ms

events.min.js

events.min.js

21 ms

resizable.min.js

resizable.min.js

21 ms

i18n.min.js

i18n.min.js

21 ms

scope.min.js

scope.min.js

21 ms

range.min.js

range.min.js

21 ms

mage-init.min.js

mage-init.min.js

29 ms

keyboard.min.js

keyboard.min.js

29 ms

optgroup.min.js

optgroup.min.js

29 ms

after-render.min.js

after-render.min.js

30 ms

autoselect.min.js

autoselect.min.js

29 ms

datepicker.min.js

datepicker.min.js

27 ms

outer_click.min.js

outer_click.min.js

28 ms

fadeVisible.min.js

fadeVisible.min.js

28 ms

collapsible.min.js

collapsible.min.js

31 ms

staticChecked.min.js

staticChecked.min.js

31 ms

simple-checked.min.js

simple-checked.min.js

260 ms

bind-html.min.js

bind-html.min.js

28 ms

tooltip.min.js

tooltip.min.js

28 ms

color-picker.min.js

color-picker.min.js

28 ms

modal-popup.html

modal-popup.html

30 ms

modal-slide.html

modal-slide.html

30 ms

modal-custom.html

modal-custom.html

31 ms

key-codes.min.js

key-codes.min.js

31 ms

core.min.js

core.min.js

32 ms

z-index.min.js

z-index.min.js

31 ms

local.min.js

local.min.js

31 ms

arrays.min.js

arrays.min.js

50 ms

compare.min.js

compare.min.js

49 ms

misc.min.js

misc.min.js

50 ms

objects.min.js

objects.min.js

51 ms

strings.min.js

strings.min.js

51 ms

template.min.js

template.min.js

51 ms

logger.min.js

logger.min.js

52 ms

entry-factory.min.js

entry-factory.min.js

50 ms

console-output-handler.min.js

console-output-handler.min.js

51 ms

formatter.min.js

formatter.min.js

52 ms

message-pool.min.js

message-pool.min.js

51 ms

levels-pool.min.js

levels-pool.min.js

47 ms

logger-utils.min.js

logger-utils.min.js

47 ms

class.min.js

class.min.js

46 ms

async.min.js

async.min.js

46 ms

loader.min.js

loader.min.js

259 ms

tooltip.html

tooltip.html

37 ms

spectrum.min.js

spectrum.min.js

37 ms

tinycolor.min.js

tinycolor.min.js

37 ms

data.min.js

data.min.js

16 ms

disable-selection.min.js

disable-selection.min.js

15 ms

focusable.min.js

focusable.min.js

16 ms

form.min.js

form.min.js

16 ms

ie.min.js

ie.min.js

17 ms

keycode.min.js

keycode.min.js

16 ms

labels.min.js

labels.min.js

17 ms

jquery-patch.min.js

jquery-patch.min.js

17 ms

plugin.min.js

plugin.min.js

17 ms

safe-active-element.min.js

safe-active-element.min.js

263 ms

safe-blur.min.js

safe-blur.min.js

25 ms

scroll-parent.min.js

scroll-parent.min.js

25 ms

tabbable.min.js

tabbable.min.js

25 ms

unique-id.min.js

unique-id.min.js

26 ms

moment.min.js

moment.min.js

21 ms

entry.min.js

entry.min.js

8 ms

dom-observer.min.js

dom-observer.min.js

14 ms

bindings.min.js

bindings.min.js

14 ms

print.css

print.css

4 ms

Accessibility Review

coroneos.com.au accessibility score

86

Accessibility Issues

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.

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 IDs are not unique

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

Form elements do not have associated labels

Best Practices

coroneos.com.au best practices score

92

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

SEO Factors

coroneos.com.au SEO score

82

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

High

robots.txt is not valid

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 Coroneos.com.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 Coroneos.com.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

coroneos.com.au

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