Access igakutosho.co.jp. 医学図書出版株式会社

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

26/100

10%

LCP (Largest Contentful Paint)

Value16.2 s

0/100

25%

SI (Speed Index)

Value10.2 s

8/100

10%

TBT (Total Blocking Time)

Value100 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.015

100/100

15%

TTI (Time to Interactive)

Value5.2 s

74/100

10%

igakutosho.co.jp

1102 ms

normal.css

338 ms

AC_RunActiveContent.js

503 ms

styleswitcher.js

346 ms

sliderstyle.css

537 ms

Our browser made a total of 111 requests to load all elements on the main page. We found that all of those requests were addressed to Igakutosho.co.jp and no external sources were called. The less responsive or slowest element that took the longest time to load (4.1 sec) belongs to the original domain Igakutosho.co.jp.

Content Size

2.7 MB

After Optimization

2.5 MB

In fact, the total size of Igakutosho.co.jp main page is 2.7 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. 55% of websites need less resources to load. Images take 2.5 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 35.7 kB

Original 41.2 kB
After minification 34.5 kB
After compression 5.5 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 6.7 kB, which is 16% 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 35.7 kB or 87% of the original size.

Image Optimization

-5%

Potential reduce by 113.5 kB

Original 2.5 MB
After minification 2.4 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. Igakutosho images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 88.0 kB

Original 127.5 kB
After minification 115.7 kB
After compression 39.4 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 88.0 kB or 69% of the original size.

CSS Optimization

-84%

Potential reduce by 33.7 kB

Original 40.1 kB
After minification 32.6 kB
After compression 6.4 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. Igakutosho.co.jp needs all CSS files to be minified and compressed as it can save up to 33.7 kB or 84% of the original size.

Requests Now

110

After Optimization

The browser has sent 110 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Igakutosho. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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 interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

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

Image elements do not have [alt] attributes

High

<input type="image"> elements do not have [alt] text

High

Links do not have a discernible name

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

Displays images with incorrect aspect ratio

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

Image elements do not have [alt] attributes

Language and Encoding

Language Detected

JA
Language Claimed

N/A
Encoding

EUC-JP

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Igakutosho.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 Igakutosho.co.jp main page’s claimed encoding is euc-jp. 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

igakutosho.co.jp

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

医学図書出版株式会社

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

igakutosho.co.jp

normal.css

AC_RunActiveContent.js

styleswitcher.js

sliderstyle.css

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

igakutosho.co.jp

normal.css

AC_RunActiveContent.js

styleswitcher.js

sliderstyle.css

jquery.js

jquery.easing.js

script.js

common.css

bg.jpg

header.jpg

logo.jpg

small_btn2.gif

normal_btn1.gif

large_btn2.gif

home1.jpg

book2.jpg

magazine2.jpg

shop2.jpg

map2.jpg

site2.jpg

space.jpg

about2.jpg

cart2.jpg

load-indicator.gif

icu-ccu-bg.png

book-kage.png

icu-ccu.jpg

icu-ccu-title.png

icu-ccu-exp.png

detail.png

tan-sui-bg.png

tan-sui.jpg

tan-sui-title.png

tan-sui-exp.png

hinyou-bg.png

hinyou.jpg

hinyou-title.png

hinyou-exp.png

prostate-bg.png

prostate.jpg

prostate-title.png

prostate-exp.png