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k-kasuga.co.jp screenshot

Report Summary

  • 78

    Performance

    Renders faster than
    85% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

k-kasuga.co.jp

株式会社春日、大阪、鉄鋼、鋼材、平鋼、輸入、輸出、八州電工、アルミ、コイル、ステンレス、銅、網パレット、ベトナム、中国、２級品、オーバーロール、発生品、プルボックス、パイプ

Page Load Speed

8.2 sec in total

First Response

1.2 sec

Resources Loaded

6.7 sec

Page Rendered

270 ms

k-kasuga.co.jp screenshot

About Website

Visit k-kasuga.co.jp now to see the best up-to-date K Kasuga content and also check out these interesting facts you probably never knew about k-kasuga.co.jp

株式会社春日、大阪、鉄鋼、鋼材、平鋼、輸入、輸出、八州電工、アルミ、コイル、ステンレス、銅、網パレット、ベトナム、中国、２級品、オーバーロール、発生品、プルボックス、パイプ

Visit k-kasuga.co.jp

Key Findings

We analyzed K-kasuga.co.jp page load time and found that the first response time was 1.2 sec and then it took 7 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

k-kasuga.co.jp performance score

78

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

65/100

10%

LCP (Largest Contentful Paint)

Value4.2 s

44/100

25%

SI (Speed Index)

Value5.1 s

62/100

10%

TBT (Total Blocking Time)

Value60 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value2.7 s

97/100

10%

Network Requests Diagram

k-kasuga.co.jp

1180 ms

www.k-kasuga.co.jp

886 ms

style.css

348 ms

base_1.js

838 ms

dropdown.css

835 ms

Our browser made a total of 34 requests to load all elements on the main page. We found that all of those requests were addressed to K-kasuga.co.jp and no external sources were called. The less responsive or slowest element that took the longest time to load (2.3 sec) belongs to the original domain K-kasuga.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 58.4 kB (15%)

Content Size

384.1 kB

After Optimization

325.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of K-kasuga.co.jp main page is 384.1 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. 15% of websites need less resources to load. Images take 304.2 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 7.2 kB

  • Original 9.4 kB
  • After minification 7.3 kB
  • After compression 2.2 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. This page needs HTML code to be minified as it can gain 2.1 kB, which is 22% 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 7.2 kB or 76% of the original size.

Image Optimization

-0%

Potential reduce by 546 B

  • Original 304.2 kB
  • After minification 303.7 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. K Kasuga images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 41.6 kB

  • Original 59.1 kB
  • After minification 58.3 kB
  • After compression 17.5 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 41.6 kB or 70% of the original size.

CSS Optimization

-80%

Potential reduce by 9.1 kB

  • Original 11.4 kB
  • After minification 9.3 kB
  • After compression 2.3 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. K-kasuga.co.jp needs all CSS files to be minified and compressed as it can save up to 9.1 kB or 80% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

32

After Optimization

32

  • Images
  • JavaScript
  • CSS

The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of K Kasuga. According to our analytics all requests are already optimized.

Network Requests Diagram

k-kasuga.co.jp

k-kasuga.co.jp

1180 ms

www.k-kasuga.co.jp

www.k-kasuga.co.jp

886 ms

style.css

style.css

348 ms

base_1.js

base_1.js

838 ms

dropdown.css

dropdown.css

835 ms

jquery.min.js

jquery.min.js

1773 ms

body_bg.jpg

body_bg.jpg

385 ms

page_bg.jpg

page_bg.jpg

381 ms

head_bg.jpg

head_bg.jpg

819 ms

ico001.jpg

ico001.jpg

378 ms

btn-01-h.jpg

btn-01-h.jpg

816 ms

btn-02-a.jpg

btn-02-a.jpg

818 ms

btn-03-a.jpg

btn-03-a.jpg

819 ms

btn-04-a.jpg

btn-04-a.jpg

818 ms

btn-05-a.jpg

btn-05-a.jpg

817 ms

btn-05-1-a.jpg

btn-05-1-a.jpg

1064 ms

btn-05-2-a.jpg

btn-05-2-a.jpg

1057 ms

btn-07-a.jpg

btn-07-a.jpg

1050 ms

btn-08-a.jpg

btn-08-a.jpg

1054 ms

flash_bg.jpg

flash_bg.jpg

1051 ms

flash.jpg

flash.jpg

2324 ms

home_img001.jpg

home_img001.jpg

1228 ms

home_img002.jpg

home_img002.jpg

1230 ms

home_img003.jpg

home_img003.jpg

1768 ms

home_img004.jpg

home_img004.jpg

1236 ms

btn-02-h.jpg

btn-02-h.jpg

260 ms

btn-03-h.jpg

btn-03-h.jpg

263 ms

btn-04-h.jpg

btn-04-h.jpg

260 ms

btn-05-h.jpg

btn-05-h.jpg

256 ms

btn-06-h.jpg

btn-06-h.jpg

261 ms

btn-07-h.jpg

btn-07-h.jpg

258 ms

btn-08-h.jpg

btn-08-h.jpg

514 ms

btn-05-1-h.jpg

btn-05-1-h.jpg

514 ms

btn-05-2-h.jpg

btn-05-2-h.jpg

514 ms

Accessibility Review

k-kasuga.co.jp accessibility score

89

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.

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

k-kasuga.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

k-kasuga.co.jp SEO score

77

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    JA

  • Encoding

    SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise K-kasuga.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 K-kasuga.co.jp main page’s claimed encoding is shift_jis. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

k-kasuga.co.jp

Open Graph description is not detected on the main page of K Kasuga. 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: