Tools & Wizards About Us
centrum.net.au screenshot

Report Summary

  • 25

    Performance

    Renders faster than
    44% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

centrum.net.au

Centrum Australia: Multivitamins for Men, Women & Kids

Page Load Speed

1.1 sec in total

First Response

143 ms

Resources Loaded

697 ms

Page Rendered

289 ms

centrum.net.au screenshot

About Website

Click here to check amazing Centrum content for Philippines. Otherwise, check out these important facts you probably never knew about centrum.net.au

Centrum is the world's #1 multivitamin brand - from A - Zinc. Get nutritional support for your healthy body from our multivitamin range.

Visit centrum.net.au

Key Findings

We analyzed Centrum.net.au page load time and found that the first response time was 143 ms and then it took 986 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

centrum.net.au performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

45/100

10%

LCP (Largest Contentful Paint)

Value9.5 s

0/100

25%

SI (Speed Index)

Value7.4 s

28/100

10%

TBT (Total Blocking Time)

Value2,020 ms

7/100

30%

CLS (Cumulative Layout Shift)

Value0.018

100/100

15%

TTI (Time to Interactive)

Value15.4 s

7/100

10%

Network Requests Diagram

centrum.net.au

143 ms

www.centrum.net.au

131 ms

design.default.bootstrap.v0-0-1.ts202409122321.css

45 ms

head.v0-0-1.ts202409122321.js

94 ms

fonts.css

23 ms

Our browser made a total of 27 requests to load all elements on the main page. We found that 19% of them (5 requests) were addressed to the original Centrum.net.au, 37% (10 requests) were made to A-cf65.ch-static.com and 30% (8 requests) were made to I-cf65.ch-static.com. The less responsive or slowest element that took the longest time to load (270 ms) relates to the external source Googletagmanager.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 75.4 kB (9%)

Content Size

870.6 kB

After Optimization

795.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Centrum.net.au main page is 870.6 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. 70% of websites need less resources to load. Javascripts take 325.3 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 74.6 kB

  • Original 85.9 kB
  • After minification 69.9 kB
  • After compression 11.3 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 16.0 kB, which is 19% 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 74.6 kB or 87% of the original size.

Image Optimization

-0%

Potential reduce by 22 B

  • Original 302.5 kB
  • After minification 302.4 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. Centrum images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 762 B

  • Original 325.3 kB
  • After minification 325.3 kB
  • After compression 324.5 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.

CSS Optimization

-0%

Potential reduce by 0 B

  • Original 156.9 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.

Requests Breakdown

Number of requests can be reduced by 4 (17%)

Requests Now

23

After Optimization

19

  • Images
  • JavaScript
  • CSS

The browser has sent 23 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Centrum. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

centrum.net.au

centrum.net.au

143 ms

www.centrum.net.au

www.centrum.net.au

131 ms

design.default.bootstrap.v0-0-1.ts202409122321.css

design.default.bootstrap.v0-0-1.ts202409122321.css

45 ms

head.v0-0-1.ts202409122321.js

head.v0-0-1.ts202409122321.js

94 ms

fonts.css

fonts.css

23 ms

design.default.bootstrap.v0-0-1.ts202409122323.js

design.default.bootstrap.v0-0-1.ts202409122323.js

209 ms

gtm.js

gtm.js

270 ms

datadog-rum.js

datadog-rum.js

211 ms

GSK_9310488003181PROD3-0.jpg

GSK_9310488003181PROD3-0.jpg

196 ms

icon-facebook.svg

icon-facebook.svg

127 ms

haleon-logo-colour-pos.svg

haleon-logo-colour-pos.svg

108 ms

silver-border-d.svg

silver-border-d.svg

113 ms

silver-border-modules.webp

silver-border-modules.webp

127 ms

silver-border-400.webp

silver-border-400.webp

127 ms

rainbow-border.webp

rainbow-border.webp

128 ms

4.jpg

4.jpg

163 ms

icon-immunity.png

icon-immunity.png

167 ms

icon-bone-health.png

icon-bone-health.png

188 ms

Woman-holding-basket-of-green-produce.jpg

Woman-holding-basket-of-green-produce.jpg

187 ms

Woman-running-on-a-mountain.jpg

Woman-running-on-a-mountain.jpg

188 ms

centrum-dektop-bg.png

centrum-dektop-bg.png

189 ms

icon-instagram.svg

icon-instagram.svg

129 ms

icon-youtube.svg

icon-youtube.svg

163 ms

widget.js

widget.js

175 ms

Centrum%20AU%20Logo.png

Centrum%20AU%20Logo.png

106 ms

gothambook.woff

gothambook.woff

80 ms

GothamNarrow-Book.woff

GothamNarrow-Book.woff

43 ms

Accessibility Review

centrum.net.au accessibility score

96

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.

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

Links do not have a discernible name

Best Practices

centrum.net.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

High

Missing source maps for large first-party JavaScript

SEO Factors

centrum.net.au SEO score

84

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

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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 Centrum.net.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 Centrum.net.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

centrum.net.au

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