Access kids-21.co.jp. 株式会社キッズコーポレーション

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

15/100

10%

LCP (Largest Contentful Paint)

Value4.8 s

30/100

25%

SI (Speed Index)

Value11.4 s

5/100

10%

TBT (Total Blocking Time)

Value1,340 ms

17/100

30%

CLS (Cumulative Layout Shift)

Value0.062

97/100

15%

TTI (Time to Interactive)

Value16.1 s

6/100

10%

kids-21.co.jp

301 ms

kids-21.co.jp

706 ms

bootstrap-grid.min.css

611 ms

style.css

763 ms

slick-theme.css

34 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that 76% of them (53 requests) were addressed to the original Kids-21.co.jp, 9% (6 requests) were made to Cdnjs.cloudflare.com and 6% (4 requests) were made to S3.ap-northeast-1.amazonaws.com. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Kids-21.co.jp.

Content Size

4.3 MB

After Optimization

4.2 MB

In fact, the total size of Kids-21.co.jp main page is 4.3 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. 50% of websites need less resources to load. Images take 4.1 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 33.1 kB

Original 40.7 kB
After minification 30.0 kB
After compression 7.6 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 10.7 kB, which is 26% 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 33.1 kB or 81% of the original size.

Image Optimization

-0%

Potential reduce by 525 B

Original 4.1 MB
After minification 4.1 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. Kids 21 images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 63.0 kB

Original 97.6 kB
After minification 97.6 kB
After compression 34.6 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 63.0 kB or 65% of the original size.

CSS Optimization

-13%

Potential reduce by 4.5 kB

Original 35.2 kB
After minification 35.2 kB
After compression 30.7 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. Kids-21.co.jp needs all CSS files to be minified and compressed as it can save up to 4.5 kB or 13% of the original size.

Requests Now

After Optimization

The browser has sent 67 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kids 21. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.