Access yuskin.co.jp. ユースキン製薬株式会社

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

9/100

10%

LCP (Largest Contentful Paint)

Value6.6 s

8/100

25%

SI (Speed Index)

Value9.3 s

13/100

10%

TBT (Total Blocking Time)

Value540 ms

54/100

30%

CLS (Cumulative Layout Shift)

Value0.182

67/100

15%

TTI (Time to Interactive)

Value13.1 s

12/100

10%

yuskin.co.jp

1819 ms

distributing_pc.js

326 ms

version4.css

986 ms

import.css

996 ms

styleswitcher.js

1003 ms

Our browser made a total of 78 requests to load all elements on the main page. We found that 97% of them (76 requests) were addressed to the original Yuskin.co.jp, 3% (2 requests) were made to Tracking.umap.jp. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Yuskin.co.jp.

Content Size

384.0 kB

After Optimization

295.3 kB

In fact, the total size of Yuskin.co.jp main page is 384.0 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. 25% of websites need less resources to load. Images take 300.3 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 13.0 kB

Original 17.3 kB
After minification 14.9 kB
After compression 4.3 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 2.4 kB, which is 14% 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 13.0 kB or 75% of the original size.

Image Optimization

-7%

Potential reduce by 22.1 kB

Original 300.3 kB
After minification 278.1 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. Yuskin images are well optimized though.

JavaScript Optimization

-62%

Potential reduce by 10.4 kB

Original 16.6 kB
After minification 15.9 kB
After compression 6.3 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 10.4 kB or 62% of the original size.

CSS Optimization

-87%

Potential reduce by 43.1 kB

Original 49.8 kB
After minification 40.2 kB
After compression 6.7 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. Yuskin.co.jp needs all CSS files to be minified and compressed as it can save up to 43.1 kB or 87% of the original size.

Requests Now

After Optimization

The browser has sent 76 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Yuskin. 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.

Accessibility Issues

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

High

[aria-*] attributes do not match their roles

High

[aria-hidden="true"] elements contain focusable descendents

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

High

Links do not have a discernible name

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

Search Engine Optimization Advices

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Links do not have descriptive text

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

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 Yuskin.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 Yuskin.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

yuskin.co.jp

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

Report Summary

Performance

Accessibility

Best Practices

SEO

ユースキン製薬株式会社 | 公式企業サイト

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

yuskin.co.jp

distributing_pc.js

version4.css

import.css

styleswitcher.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

yuskin.co.jp

distributing_pc.js

version4.css

import.css

styleswitcher.js

rollover.js

swfobject.js

apng.js

apng.js

logging.js

module.css

reset.css

structure.css

bg_body.gif

logo_f.gif

bg_navSize.gif

bg_navSize_01.gif

bg_navSize_02.gif

bg_navSize_03.gif

bg_navG.gif

bg_navG_01.gif

bg_navG_02.gif

bg_navG_03.gif

bg_navG_04.gif

bg_navG_05.gif

mainImage_01.png

bg_boxTopAbout_head.gif

top_tit_about.png

top_subtit_about_11.png

top_pic_about_10.jpg

top_subtit_about_12.png

top_pic_about_12.jpg

top_subtit_about_08.png

top_pic_about_08.jpg

top_subtit_about_20.png

top_pic_about_20.jpg

top_subtit_about_01.png

top_pic_about_01.jpg

top_subtit_about_03.png

top_pic_about_03.jpg

top_subtit_about_06.png

top_pic_about_06.gif

top_btn_more.gif