Tools & Wizards About Us

Report Summary

  • 29

    Performance

    Renders faster than
    49% of other websites

  • 42

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

soundscience.co.jp

音質改善・高音質オーディオのことならお任せください | サウンドサイエンス株式会社

Page Load Speed

4.1 sec in total

First Response

914 ms

Resources Loaded

2.8 sec

Page Rendered

333 ms

About Website

Welcome to soundscience.co.jp homepage info - get ready to check Soundscience best content for Japan right away, or after learning these important things about soundscience.co.jp

サウンドサイエンスは「より多くの人に感動できる音質」という理念をもって、カーオーディオの音質改善サウンドシャキットPA504-Z2、音質改善アプリUBiO for iPhone、環境ノイズリダクション型イヤーピースSilent Piece、ホーム用音質改善エンハンサーM-10などのラインアップしています。

Visit soundscience.co.jp

Key Findings

We analyzed Soundscience.co.jp page load time and found that the first response time was 914 ms and then it took 3.2 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

soundscience.co.jp performance score

29

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

74/100

10%

LCP (Largest Contentful Paint)

Value13.5 s

0/100

25%

SI (Speed Index)

Value7.0 s

33/100

10%

TBT (Total Blocking Time)

Value920 ms

30/100

30%

CLS (Cumulative Layout Shift)

Value0.233

53/100

15%

TTI (Time to Interactive)

Value11.6 s

18/100

10%

Network Requests Diagram

soundscience.co.jp

914 ms

jquery.min.js

7 ms

format.js

505 ms

rollover.js

346 ms

css

26 ms

Our browser made a total of 41 requests to load all elements on the main page. We found that 63% of them (26 requests) were addressed to the original Soundscience.co.jp, 12% (5 requests) were made to Fonts.gstatic.com and 7% (3 requests) were made to S.ytimg.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Soundscience.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 373.9 kB (50%)

Content Size

740.8 kB

After Optimization

366.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Soundscience.co.jp main page is 740.8 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. 65% of websites need less resources to load. CSS take 255.4 kB which makes up the majority of the site volume.

HTML Optimization

-65%

Potential reduce by 8.0 kB

  • Original 12.2 kB
  • After minification 12.2 kB
  • After compression 4.2 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 8.0 kB or 65% of the original size.

Image Optimization

-6%

Potential reduce by 14.6 kB

  • Original 239.0 kB
  • After minification 224.3 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. Soundscience images are well optimized though.

JavaScript Optimization

-60%

Potential reduce by 140.2 kB

  • Original 234.2 kB
  • After minification 234.0 kB
  • After compression 94.0 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 140.2 kB or 60% of the original size.

CSS Optimization

-83%

Potential reduce by 211.1 kB

  • Original 255.4 kB
  • After minification 253.1 kB
  • After compression 44.3 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. Soundscience.co.jp needs all CSS files to be minified and compressed as it can save up to 211.1 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (50%)

Requests Now

34

After Optimization

17

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Soundscience. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

soundscience.co.jp accessibility score

42

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.

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

Definition list items are not wrapped in <dl> elements

High

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

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

<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

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

soundscience.co.jp best practices score

75

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

soundscience.co.jp SEO score

62

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

Image elements do not have [alt] attributes

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 Soundscience.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 Soundscience.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

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