Tools & Wizards About Us
kotobuki-grp.co.jp screenshot

Report Summary

  • 47

    Performance

    Renders faster than
    66% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 69% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

kotobuki-grp.co.jp

愛知県岡崎市ことぶき株式会社｜ウレタンフォーム加工・緩衝材の事なら

Page Load Speed

4.6 sec in total

First Response

527 ms

Resources Loaded

3.9 sec

Page Rendered

127 ms

kotobuki-grp.co.jp screenshot

About Website

Welcome to kotobuki-grp.co.jp homepage info - get ready to check Kotobuki Grp best content right away, or after learning these important things about kotobuki-grp.co.jp

消音・気密性能にこだわったウレタンフォーム加工・緩衝材なら愛知県岡崎市のことぶき株式会社へ。一工程の加工のみではなく、複数の工程・加工を合わせ、無数な形をご提供できるよう、設備も充実しております。

Visit kotobuki-grp.co.jp

Key Findings

We analyzed Kotobuki-grp.co.jp page load time and found that the first response time was 527 ms and then it took 4.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

kotobuki-grp.co.jp performance score

47

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

66/100

10%

LCP (Largest Contentful Paint)

Value8.2 s

2/100

25%

SI (Speed Index)

Value6.2 s

44/100

10%

TBT (Total Blocking Time)

Value140 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0.488

17/100

15%

TTI (Time to Interactive)

Value7.6 s

46/100

10%

Network Requests Diagram

kotobuki-grp.co.jp

527 ms

style.css

456 ms

top.css

306 ms

jquery-1.9.0.min.js

1146 ms

jquery.mousewheel-3.0.6.pack.js

345 ms

Our browser made a total of 41 requests to load all elements on the main page. We found that 95% of them (39 requests) were addressed to the original Kotobuki-grp.co.jp, 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2.3 sec) belongs to the original domain Kotobuki-grp.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 134.2 kB (21%)

Content Size

648.0 kB

After Optimization

513.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Kotobuki-grp.co.jp main page is 648.0 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. 20% of websites need less resources to load. Images take 443.0 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 5.9 kB

  • Original 8.3 kB
  • After minification 7.8 kB
  • After compression 2.4 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 5.9 kB or 71% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 443.0 kB
  • After minification 443.0 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. Kotobuki Grp images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 107.2 kB

  • Original 171.4 kB
  • After minification 151.6 kB
  • After compression 64.2 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 107.2 kB or 63% of the original size.

CSS Optimization

-83%

Potential reduce by 21.1 kB

  • Original 25.3 kB
  • After minification 17.4 kB
  • After compression 4.2 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. Kotobuki-grp.co.jp needs all CSS files to be minified and compressed as it can save up to 21.1 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (25%)

Requests Now

40

After Optimization

30

  • Images
  • JavaScript
  • CSS

The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kotobuki Grp. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

kotobuki-grp.co.jp

kotobuki-grp.co.jp

527 ms

style.css

style.css

456 ms

top.css

top.css

306 ms

jquery-1.9.0.min.js

jquery-1.9.0.min.js

1146 ms

jquery.mousewheel-3.0.6.pack.js

jquery.mousewheel-3.0.6.pack.js

345 ms

jquery.fancybox.js

jquery.fancybox.js

898 ms

jquery.fancybox.css

jquery.fancybox.css

372 ms

jquery.fancybox-buttons.css

jquery.fancybox-buttons.css

642 ms

jquery.fancybox-buttons.js

jquery.fancybox-buttons.js

670 ms

jquery.fancybox-thumbs.css

jquery.fancybox-thumbs.css

763 ms

jquery.fancybox-thumbs.js

jquery.fancybox-thumbs.js

809 ms

jquery.fancybox-media.js

jquery.fancybox-media.js

969 ms

logo_kotobuki.jpg

logo_kotobuki.jpg

329 ms

h_c_navi01.jpg

h_c_navi01.jpg

338 ms

h_c_navi02.jpg

h_c_navi02.jpg

338 ms

h_c_navi03.jpg

h_c_navi03.jpg

370 ms

h_c_navi04.jpg

h_c_navi04.jpg

345 ms

h_c_navi05.jpg

h_c_navi05.jpg

365 ms

h_navi01.jpg

h_navi01.jpg

634 ms

h_navi02.jpg

h_navi02.jpg

685 ms

h_navi03.jpg

h_navi03.jpg

689 ms

h_navi04.jpg

h_navi04.jpg

668 ms

top_back.jpg

top_back.jpg

711 ms

t_lineup.jpg

t_lineup.jpg

714 ms

main_top01.jpg

main_top01.jpg

1718 ms

main_top02.jpg

main_top02.jpg

1509 ms

main_top03.jpg

main_top03.jpg

1680 ms

main_top_navi01.jpg

main_top_navi01.jpg

1027 ms

main_top_navi02.jpg

main_top_navi02.jpg

1023 ms

main_top_navi03.jpg

main_top_navi03.jpg

1061 ms

main_top_line.jpg

main_top_line.jpg

1327 ms

main_top04.jpg

main_top04.jpg

2087 ms

main_top05.jpg

main_top05.jpg

2021 ms

main_top_navi04.jpg

main_top_navi04.jpg

1652 ms

main_top_navi05.jpg

main_top_navi05.jpg

1819 ms

f_navi01.jpg

f_navi01.jpg

2032 ms

f_navi02.jpg

f_navi02.jpg

2027 ms

f_navi03.jpg

f_navi03.jpg

2195 ms

pagetop.jpg

pagetop.jpg

2251 ms

ga.js

ga.js

9 ms

__utm.gif

__utm.gif

12 ms

Accessibility Review

kotobuki-grp.co.jp accessibility score

88

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.

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

kotobuki-grp.co.jp best practices score

67

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

kotobuki-grp.co.jp SEO score

71

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

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 Kotobuki-grp.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 Kotobuki-grp.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

kotobuki-grp.co.jp

Open Graph description is not detected on the main page of Kotobuki Grp. 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: