Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 89% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

colesmastercard.com.au

Rewards, Low Rate & No Annual Fee Mastercard | Coles Credit Cards

Page Load Speed

10.6 sec in total

First Response

1.4 sec

Resources Loaded

8.7 sec

Page Rendered

523 ms

colesmastercard.com.au screenshot

About Website

Welcome to colesmastercard.com.au homepage info - get ready to check Coles Mastercard best content for Australia right away, or after learning these important things about colesmastercard.com.au

Choose the right credit card and benefit from Coles. Compare between Rewards, No Fee and Low Rate Mastercards. Apply online.

Visit colesmastercard.com.au

Key Findings

We analyzed Colesmastercard.com.au page load time and found that the first response time was 1.4 sec and then it took 9.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

colesmastercard.com.au performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value27.2 s

0/100

25%

SI (Speed Index)

Value19.9 s

0/100

10%

TBT (Total Blocking Time)

Value2,310 ms

5/100

30%

CLS (Cumulative Layout Shift)

Value0.018

100/100

15%

TTI (Time to Interactive)

Value29.9 s

0/100

10%

Network Requests Diagram

credit-cards

1382 ms

jquery-1.9.1.min.js

954 ms

bootstrap.css

725 ms

bootstrap-responsive.css

508 ms

galleria.classic.css

487 ms

Our browser made a total of 117 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Colesmastercard.com.au, 11% (13 requests) were made to Coles.com.au and 6% (7 requests) were made to Pixel.mathtag.com. The less responsive or slowest element that took the longest time to load (2.9 sec) relates to the external source Financialservices.coles.com.au.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.3 MB (54%)

Content Size

2.5 MB

After Optimization

1.2 MB

In fact, the total size of Colesmastercard.com.au main page is 2.5 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. 45% of websites need less resources to load. Javascripts take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 93.5 kB

  • Original 107.9 kB
  • After minification 76.6 kB
  • After compression 14.4 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 31.3 kB, which is 29% 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 93.5 kB or 87% of the original size.

Image Optimization

-7%

Potential reduce by 62.3 kB

  • Original 865.2 kB
  • After minification 802.9 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. Coles Mastercard images are well optimized though.

JavaScript Optimization

-74%

Potential reduce by 828.2 kB

  • Original 1.1 MB
  • After minification 948.9 kB
  • After compression 291.3 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 828.2 kB or 74% of the original size.

CSS Optimization

-87%

Potential reduce by 356.2 kB

  • Original 407.2 kB
  • After minification 303.5 kB
  • After compression 50.9 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. Colesmastercard.com.au needs all CSS files to be minified and compressed as it can save up to 356.2 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 63 (57%)

Requests Now

110

After Optimization

47

The browser has sent 110 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Coles Mastercard. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 48 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

colesmastercard.com.au accessibility score

96

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

High

Heading elements are not in a sequentially-descending order

Best Practices

colesmastercard.com.au best practices score

83

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

Missing source maps for large first-party JavaScript

SEO Factors

colesmastercard.com.au SEO score

86

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

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 Colesmastercard.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 Colesmastercard.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

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