Access doyukan.co.jp. 経営・経済・図書出版　同友館

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

15/100

10%

LCP (Largest Contentful Paint)

Value16.7 s

0/100

25%

SI (Speed Index)

Value9.6 s

11/100

10%

TBT (Total Blocking Time)

Value1,040 ms

26/100

30%

CLS (Cumulative Layout Shift)

Value0.023

100/100

15%

TTI (Time to Interactive)

Value14.6 s

8/100

10%

doyukan.co.jp

357 ms

www.doyukan.co.jp

881 ms

screen.css

342 ms

home2.css

504 ms

global.css

514 ms

Our browser made a total of 41 requests to load all elements on the main page. We found that 66% of them (27 requests) were addressed to the original Doyukan.co.jp, 12% (5 requests) were made to Youtube.com and 5% (2 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (881 ms) belongs to the original domain Doyukan.co.jp.

Content Size

835.2 kB

After Optimization

715.3 kB

In fact, the total size of Doyukan.co.jp main page is 835.2 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 455.1 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 18.5 kB

Original 23.3 kB
After minification 16.2 kB
After compression 4.8 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 7.0 kB, which is 30% 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 18.5 kB or 79% of the original size.

Image Optimization

-2%

Potential reduce by 7.7 kB

Original 455.1 kB
After minification 447.4 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. Doyukan images are well optimized though.

JavaScript Optimization

-28%

Potential reduce by 79.0 kB

Original 279.4 kB
After minification 278.0 kB
After compression 200.4 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 79.0 kB or 28% of the original size.

CSS Optimization

-19%

Potential reduce by 14.6 kB

Original 77.4 kB
After minification 73.5 kB
After compression 62.8 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. Doyukan.co.jp needs all CSS files to be minified and compressed as it can save up to 14.6 kB or 19% of the original size.

Requests Now

After Optimization

The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Doyukan. 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 4 to 1 for CSS and as a result speed up the page load time.