Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

asaca.co.jp

Top Page | ASACA

Page Load Speed

5 sec in total

First Response

712 ms

Resources Loaded

3.8 sec

Page Rendered

505 ms

asaca.co.jp screenshot

About Website

Welcome to asaca.co.jp homepage info - get ready to check ASACA best content right away, or after learning these important things about asaca.co.jp

放送映像音声機器の株式会社アサカ

Visit asaca.co.jp

Key Findings

We analyzed Asaca.co.jp page load time and found that the first response time was 712 ms and then it took 4.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

asaca.co.jp performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value10.4 s

0/100

10%

LCP (Largest Contentful Paint)

Value20.2 s

0/100

25%

SI (Speed Index)

Value12.4 s

3/100

10%

TBT (Total Blocking Time)

Value1,530 ms

13/100

30%

CLS (Cumulative Layout Shift)

Value0.072

96/100

15%

TTI (Time to Interactive)

Value25.0 s

0/100

10%

Network Requests Diagram

asaca.co.jp

712 ms

css

33 ms

bootstrap.css

1314 ms

fontawesome-all.min.css

764 ms

slick.css

604 ms

Our browser made a total of 61 requests to load all elements on the main page. We found that 56% of them (34 requests) were addressed to the original Asaca.co.jp, 15% (9 requests) were made to Youtube.com and 10% (6 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (2.9 sec) belongs to the original domain Asaca.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 435.4 kB (13%)

Content Size

3.5 MB

After Optimization

3.0 MB

In fact, the total size of Asaca.co.jp main page is 3.5 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. 60% of websites need less resources to load. Images take 2.7 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 21.6 kB

  • Original 27.0 kB
  • After minification 20.6 kB
  • After compression 5.5 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 6.4 kB, which is 24% 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 21.6 kB or 80% of the original size.

Image Optimization

-1%

Potential reduce by 27.8 kB

  • Original 2.7 MB
  • After minification 2.7 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. ASACA images are well optimized though.

JavaScript Optimization

-41%

Potential reduce by 183.9 kB

  • Original 446.7 kB
  • After minification 443.0 kB
  • After compression 262.8 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 183.9 kB or 41% of the original size.

CSS Optimization

-68%

Potential reduce by 202.1 kB

  • Original 296.7 kB
  • After minification 256.9 kB
  • After compression 94.6 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. Asaca.co.jp needs all CSS files to be minified and compressed as it can save up to 202.1 kB or 68% of the original size.

Requests Breakdown

Number of requests can be reduced by 27 (50%)

Requests Now

54

After Optimization

27

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ASACA. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

asaca.co.jp accessibility score

89

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 IDs are not unique

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

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

asaca.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

High

Page has valid source maps

SEO Factors

asaca.co.jp SEO score

79

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

Links do not have descriptive text

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

    JA

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Asaca.co.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 Asaca.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 description is not detected on the main page of ASACA. 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: