Report Summary

  • 8

    Performance

    Renders faster than
    22% of other websites

  • 61

    Accessibility

    Visual factors better than
    that of 27% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

dyson.hk

Dyson 香港 | 官方網站 | 網上商店

Page Load Speed

3.3 sec in total

First Response

282 ms

Resources Loaded

2.8 sec

Page Rendered

192 ms

dyson.hk screenshot

About Website

Visit dyson.hk now to see the best up-to-date Dyson content for Hong Kong and also check out these interesting facts you probably never knew about dyson.hk

了解及選購Dyson吸塵機 、風扇、空氣清新機及冷暖機、風筒及乾手機。了解我們的技術 - 數碼摩打、氣流倍增技術等。獲取有關Dyson機體的支援。到訪Dyson體驗店或預約Dyson美髪造型服務。

Visit dyson.hk

Key Findings

We analyzed Dyson.hk page load time and found that the first response time was 282 ms and then it took 3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

dyson.hk performance score

8

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

37/100

10%

LCP (Largest Contentful Paint)

Value15.2 s

0/100

25%

SI (Speed Index)

Value23.6 s

0/100

10%

TBT (Total Blocking Time)

Value18,560 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.352

31/100

15%

TTI (Time to Interactive)

Value32.9 s

0/100

10%

Network Requests Diagram

dyson.hk

282 ms

www.dyson.hk

828 ms

jquery-1.9.1.min.js

20 ms

browser_selector.js

10 ms

fonts.css

11 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 63% of them (37 requests) were addressed to the original Dyson.hk, 15% (9 requests) were made to Google.com and 5% (3 requests) were made to Cse.google.com. The less responsive or slowest element that took the longest time to load (828 ms) belongs to the original domain Dyson.hk.

Page Optimization Overview & Recommendations

Page size can be reduced by 517.9 kB (57%)

Content Size

912.5 kB

After Optimization

394.6 kB

In fact, the total size of Dyson.hk main page is 912.5 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. 45% of websites need less resources to load. CSS take 435.6 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 56.6 kB

  • Original 68.9 kB
  • After minification 55.1 kB
  • After compression 12.3 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 13.9 kB, which is 20% 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 56.6 kB or 82% of the original size.

Image Optimization

-2%

Potential reduce by 4.4 kB

  • Original 211.9 kB
  • After minification 207.6 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. Dyson images are well optimized though.

JavaScript Optimization

-54%

Potential reduce by 106.0 kB

  • Original 196.0 kB
  • After minification 178.0 kB
  • After compression 90.1 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 106.0 kB or 54% of the original size.

CSS Optimization

-81%

Potential reduce by 350.9 kB

  • Original 435.6 kB
  • After minification 431.9 kB
  • After compression 84.6 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. Dyson.hk needs all CSS files to be minified and compressed as it can save up to 350.9 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 27 (53%)

Requests Now

51

After Optimization

24

The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dyson. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

dyson.hk accessibility score

61

Accessibility Issues

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-*] attributes do not match their roles

High

[aria-hidden="true"] elements contain focusable descendents

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

[aria-*] attributes do not have valid values

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

dyson.hk best practices score

75

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

Missing source maps for large first-party JavaScript

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

dyson.hk SEO score

83

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

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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

    JA

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dyson.hk can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Dyson.hk 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 Dyson. 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: