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

Report Summary

  • 42

    Performance

    Renders faster than
    61% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% 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

5.8 sec in total

First Response

635 ms

Resources Loaded

4.8 sec

Page Rendered

417 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 635 ms and then it took 5.2 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

kotobuki-grp.co.jp performance score

42

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

28/100

10%

LCP (Largest Contentful Paint)

Value8.6 s

1/100

25%

SI (Speed Index)

Value7.7 s

24/100

10%

TBT (Total Blocking Time)

Value150 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0.359

30/100

15%

TTI (Time to Interactive)

Value8.4 s

38/100

10%

Network Requests Diagram

kotobuki-grp.co.jp

635 ms

kotobuki-grp.co.jp

1204 ms

wp-emoji-release.min.js

305 ms

reset.css

475 ms

common.css

508 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that 94% of them (66 requests) were addressed to the original Kotobuki-grp.co.jp, 3% (2 requests) were made to Google-analytics.com and 1% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Kotobuki-grp.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 91.3 kB (3%)

Content Size

3.0 MB

After Optimization

2.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Kotobuki-grp.co.jp main page is 3.0 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. 35% of websites need less resources to load. Images take 2.8 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 16.1 kB

  • Original 21.3 kB
  • After minification 19.2 kB
  • After compression 5.1 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 16.1 kB or 76% of the original size.

Image Optimization

-0%

Potential reduce by 8.6 kB

  • Original 2.8 MB
  • After minification 2.8 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. Kotobuki Grp images are well optimized though.

JavaScript Optimization

-44%

Potential reduce by 49.7 kB

  • Original 112.0 kB
  • After minification 108.2 kB
  • After compression 62.3 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 49.7 kB or 44% of the original size.

CSS Optimization

-79%

Potential reduce by 16.9 kB

  • Original 21.3 kB
  • After minification 15.1 kB
  • After compression 4.4 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 16.9 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 26 (38%)

Requests Now

68

After Optimization

42

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 68 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 9 to 1 for JavaScripts and from 7 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

635 ms

kotobuki-grp.co.jp

kotobuki-grp.co.jp

1204 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

305 ms

reset.css

reset.css

475 ms

common.css

common.css

508 ms

main.css

main.css

510 ms

cms.css

cms.css

521 ms

css3_blue_glossy.css

css3_blue_glossy.css

523 ms

jquery.min.js

jquery.min.js

24 ms

html5shiv.min.js

html5shiv.min.js

535 ms

image-switch.js

image-switch.js

643 ms

top.css

top.css

567 ms

skdslider.css

skdslider.css

567 ms

skdslider.js

skdslider.js

568 ms

tile.js

tile.js

571 ms

wp-embed.min.js

wp-embed.min.js

570 ms

analytics.js

analytics.js

31 ms

head_logo.png

head_logo.png

197 ms

head_top.png

head_top.png

198 ms

head_news.png

head_news.png

203 ms

head_cont.png

head_cont.png

222 ms

head_tel.png

head_tel.png

225 ms

navi_bk.png

navi_bk.png

226 ms

navi_01.png

navi_01.png

341 ms

navi_02.png

navi_02.png

534 ms

navi_03.png

navi_03.png

540 ms

navi_04.png

navi_04.png

396 ms

navi_05.png

navi_05.png

572 ms

slider_01.jpg

slider_01.jpg

1441 ms

slider_01on.png

slider_01on.png

1192 ms

slider_02.jpg

slider_02.jpg

1263 ms

slider_02on.png

slider_02on.png

1543 ms

slider_03.jpg

slider_03.jpg

1216 ms

slider_03on.png

slider_03on.png

1090 ms

top_01.png

top_01.png

1265 ms

top_02.png

top_02.png

1362 ms

top_03.jpg

top_03.jpg

1386 ms

top_04.png

top_04.png

1436 ms

top_05.jpg

top_05.jpg

1439 ms

top_06.png

top_06.png

1531 ms

top_07.jpg

top_07.jpg

1555 ms

top_08.png

top_08.png

1610 ms

top_09.jpg

top_09.jpg

1612 ms

top_10.png

top_10.png

1613 ms

top_11.jpg

top_11.jpg

1700 ms

top_12.png

top_12.png

1710 ms

top_13.jpg

top_13.jpg

1724 ms

top_14.png

top_14.png

1767 ms

collect

collect

48 ms

top_15.jpg

top_15.jpg

1739 ms

top_16.jpg

top_16.jpg

1738 ms

top_17.png

top_17.png

1820 ms

top_18.jpg

top_18.jpg

1829 ms

top_19.jpg

top_19.jpg

1840 ms

js

js

67 ms

top_20.png

top_20.png

1767 ms

top_21.jpg

top_21.jpg

1769 ms

top_22.jpg

top_22.jpg

1765 ms

top_23.jpg

top_23.jpg

1822 ms

top_24.jpg

top_24.jpg

1828 ms

top_25.png

top_25.png

1844 ms

top_26.png

top_26.png

1796 ms

top_27.png

top_27.png

1744 ms

foot_logo.png

foot_logo.png

1606 ms

foot_cont.png

foot_cont.png

1674 ms

foot_tel.png

foot_tel.png

1651 ms

top05_bk.jpg

top05_bk.jpg

1318 ms

foot_arrow.png

foot_arrow.png

1117 ms

left.png

left.png

1095 ms

right.png

right.png

1049 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: