Access content.dyson.co.jp.

name

value

score

weighting

FCP (First Contentful Paint)

Value5.0 s

9/100

10%

LCP (Largest Contentful Paint)

Value21.3 s

0/100

25%

SI (Speed Index)

Value10.9 s

6/100

10%

TBT (Total Blocking Time)

Value3,420 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value20.1 s

2/100

10%

www.dyson.co.jp

468 ms

jquery-1.9.1.min.js

69 ms

browser_selector.js

16 ms

fonts.css

12 ms

v5css-1

45 ms

Our browser made a total of 91 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Content.dyson.co.jp, 12% (11 requests) were made to Google.com and 4% (4 requests) were made to Facebook.com. The less responsive or slowest element that took the longest time to load (1 sec) relates to the external source Mobile-ybi.jp-east.idcfcloud.com.

Content Size

1.1 MB

After Optimization

514.4 kB

In fact, the total size of Content.dyson.co.jp main page is 1.1 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. CSS take 435.6 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 84.6 kB

Original 104.6 kB
After minification 86.2 kB
After compression 20.0 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 18.4 kB, which is 18% 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 84.6 kB or 81% of the original size.

Image Optimization

-3%

Potential reduce by 6.7 kB

Original 256.8 kB
After minification 250.0 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. Content Dyson images are well optimized though.

JavaScript Optimization

-51%

Potential reduce by 167.2 kB

Original 327.0 kB
After minification 306.8 kB
After compression 159.8 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 167.2 kB or 51% 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. Content.dyson.co.jp 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 Now

After Optimization

The browser has sent 76 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Content 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 32 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

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

High

Links are not crawlable

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

High

Image elements do not have [alt] attributes

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/).

High

Document uses legible font sizes

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 Content.dyson.co.jp 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 Content.dyson.co.jp 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

content.dyson.co.jp

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

www.dyson.co.jp

jquery-1.9.1.min.js

browser_selector.js

fonts.css

v5css-1

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

www.dyson.co.jp

jquery-1.9.1.min.js

browser_selector.js

fonts.css

v5css-1

v5css-2

V5js

ieonlyjs

cbc.ashx

mmcore.js

lazyload-min.js

loader.js

FuturaBTW01Light.svg

impl-1_22.js

gtm.js

cse.js

dyson_logo-690ab3d7ef5a128cbf1c87e2c5a94182cd123faa.jpg

mm_arrow-34f9e40e1ed5eeeb93542071d7da2a0982c69037.png

sprite_header_icons-5c2eab81a4b10cb33e2f838db27d33aacebda40c.png

flag_china.ashx

DysonPureHotAndCool_motif_white.ashx

DysonBallFluffy_motif_261x39.ashx

carouselBullets-cdff88c2dac0998fcccb7e600295179498f0dc52.png

AboutDyson_2.ashx

Support_2.ashx

homepagePanel_Register.ashx

HomepagePanel_DysonStore_JP.ashx

logo_footer.png

facebookSprite.ashx

twitterSprite.ashx

youtubeSprite.ashx

FuturaBTW01Medium.svg

cse.js

page_loader.gif

mone.c4399499457_1885.js

conversion_async.js

analytics.js

29zexdg690.js

dc.js

sessioncam.recorder.js

itm.js

cross-puzzle-CPN_TOPpage%20panel.ashx

360Eye_Refresh_home.ashx

FuturaBTW01Light.woff