Coles Supermarket

https://www.coles.com.au/
Welcome to Coles supermarkets. View your local catalogue. Find your nearest store. Shop online and have your groceries delivered. Discover great recipe ideas.
Added 3 months ago, Updated 21 minutes ago

LIGHTHOUSE 55

Lighthouse version2.5.0
Progressive Web App55
Registers a service workertrue
Does not respond with a 200 when offlinefalse
Contains some content when JavaScript is not availabletrue
Uses HTTPStrue
Redirects HTTP traffic to HTTPStrue
Page load is not fast enough on 3Gfalse
User will not be prompted to Install the Web Appfalse
Is not configured for a custom splash screenfalse
Address bar does not match brand colorsfalse
Has a `<meta name="viewport">` tag with `width` or `initial-scale`true
Content is sized correctly for the viewporttrue
Site works cross-browserfalse
Page transitions don't feel like they block on the networkfalse
Each page has a URLfalse
Performance15
First meaningful paint0
First Interactive (beta)16
Consistently Interactive (beta)16
Perceptual Speed Index3
Estimated Input Latency100
Reduce render-blocking stylesheets0
Reduce render-blocking scripts0
Properly size images0
Offscreen images0
Optimize images0
Serve images as WebP0
Enable text compression0
Keep server response times low (TTFB)false
Has enormous network payloads68
Avoids an excessive DOM size100
Critical Request Chainsfalse
User Timing marks and measurestrue
Screenshot Thumbnails100
Accessibility89
`[accesskey]` values are unique.true
`[aria-*]` attributes match their roles.true
`[role]`s have all required `[aria-*]` attributes.true
Elements with `[role]` that require specific children `[role]`s, are present.true
`[role]`s are contained by their required parent element.true
`[role]` values are valid.true
`[aria-*]` attributes have valid values.true
`[aria-*]` attributes are valid and not misspelled.true
`<audio>` elements contain a `<track>` element with `[kind="captions"]`.true
Buttons have an accessible name.true
The page contains a heading, skip link, or landmark region.true
Background and foreground colors have a sufficient contrast ratio.true
`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>` or `<template>` elements.true
Definition list items are wrapped in `<dl>` elements.true
Document has a `<title>` element.true
`[id]` attributes on the page are not unique.false
`<frame>` or `<iframe>` elements have a title.true
`<html>` element has a `[lang]` attribute.true
`<html>` element has a valid value for its `[lang]` attribute.true
Image elements have `[alt]` attributes.true
`<input type="image">` elements have `[alt]` text.true
Form elements have associated labels.true
Presentational `<table>` elements avoid using `<th>`, `<caption>` or the `[summary]` attribute.true
Links have a discernible name.true
Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).false
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements.true
The document does not use `<meta http-equiv="refresh">`.true
`[user-scalable="no"]` is used in the `<meta name="viewport">` element or the `[maximum-scale]` attribute is less than 5.false
`<object>` elements have `[alt]` text.true
Some elements have a `[tabindex]` value greater than 0.false
Cells in a `<table>` element that use the `[headers]` attribute only refer to other cells of that same table.true
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.true
`[lang]` attributes have a valid value.true
`<video>` elements contain a `<track>` element with `[kind="captions"]`.true
`<video>` elements contain a `<track>` element with `[kind="description"]`.true
Best Practices69
Avoids Application Cachetrue
Avoids WebSQL DBtrue
Uses HTTPStrue
Uses HTTP/2 for its own resourcestrue
Does not use passive listeners to improve scrolling performancefalse
Avoids Mutation Events in its own scriptstrue
Uses `document.write()`false
Does not open external anchors using `rel="noopener"`false
Avoids requesting the geolocation permission on page loadtrue
Includes front-end JavaScript libraries with known security vulnerabilitiesfalse
Avoids requesting the notification permission on page loadtrue
Avoids deprecated APIstrue
Manifest's `short_name` won't be truncated when displayed on homescreentrue
Allows users to paste into password fieldstrue
No browser errors logged to the consoletrue
Does not uses Images with appropriate aspect ratio0

WebPageTest

PageSpeed Insights

MANIFEST

{
  "name": "Coles Supermarket",
  "short_name": "Coles",
  "icons": [
    {
      "src": "https://www.coles.com.au/assets/coles/images/ColesIcon.PNG",
      "sizes": "160x160",
      "type": "image/png"
    }
  ],
  "start_url": ".",
  "display": "standalone",
  "prefer_related_applications": true,
  "related_applications": [
    {
      "platform": "play",
      "id": "com.coles.android.shopmate"
    }
  ]
}