Report Summary

  • 22

    Performance

    Renders faster than
    41% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

airweave.jp

airweave(エアウィーヴ)|公式ブランドサイト

Page Load Speed

6.6 sec in total

First Response

647 ms

Resources Loaded

5.7 sec

Page Rendered

340 ms

airweave.jp screenshot

About Website

Click here to check amazing Airweave content for Japan. Otherwise, check out these important facts you probably never knew about airweave.jp

睡眠の質は、寝具で変わる。すべての人が、目覚めの違いを感じて、最高のパフォーマンスを発揮できるように。独自素材エアファイバー®を使ったベッドマットレスやマットレスパッド、敷き布団、枕(ピロー)を提供しています。エアウィーヴ(airweave)は睡眠の研究を行い、睡眠の質を追求しています。

Visit airweave.jp

Key Findings

We analyzed Airweave.jp page load time and found that the first response time was 647 ms and then it took 6 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

airweave.jp performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

25/100

10%

LCP (Largest Contentful Paint)

Value16.2 s

0/100

25%

SI (Speed Index)

Value11.1 s

6/100

10%

TBT (Total Blocking Time)

Value500 ms

58/100

30%

CLS (Cumulative Layout Shift)

Value0.748

6/100

15%

TTI (Time to Interactive)

Value20.3 s

2/100

10%

Network Requests Diagram

airweave.jp

647 ms

reset.css

336 ms

utility.css

349 ms

component.css

504 ms

colorbox.css

336 ms

Our browser made a total of 120 requests to load all elements on the main page. We found that 67% of them (80 requests) were addressed to the original Airweave.jp, 4% (5 requests) were made to D3pj3vgx4ijpjx.cloudfront.net and 3% (4 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (3.1 sec) belongs to the original domain Airweave.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 373.3 kB (7%)

Content Size

5.6 MB

After Optimization

5.3 MB

In fact, the total size of Airweave.jp main page is 5.6 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. 50% of websites need less resources to load. Images take 5.1 MB which makes up the majority of the site volume.

HTML Optimization

-50%

Potential reduce by 90.0 kB

  • Original 180.9 kB
  • After minification 167.0 kB
  • After compression 90.9 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 90.0 kB or 50% of the original size.

Image Optimization

-1%

Potential reduce by 73.0 kB

  • Original 5.1 MB
  • After minification 5.0 MB

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. Airweave images are well optimized though.

JavaScript Optimization

-56%

Potential reduce by 159.7 kB

  • Original 285.0 kB
  • After minification 279.8 kB
  • After compression 125.3 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 159.7 kB or 56% of the original size.

CSS Optimization

-84%

Potential reduce by 50.6 kB

  • Original 60.3 kB
  • After minification 46.7 kB
  • After compression 9.7 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. Airweave.jp needs all CSS files to be minified and compressed as it can save up to 50.6 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 69 (61%)

Requests Now

113

After Optimization

44

The browser has sent 113 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Airweave. 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 Review

airweave.jp accessibility score

75

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

airweave.jp best practices score

50

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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

airweave.jp SEO score

75

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 doesn't use legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    JA

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Airweave.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and it matches the claimed language. Our system also found out that Airweave.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

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