Access seibundo-shinkosha.net. 株式会社誠文堂新光社 | あなたの「好き」を、もっと深いところまで。そんな思いで１００年。

name

value

score

weighting

FCP (First Contentful Paint)

Value11.3 s

0/100

10%

LCP (Largest Contentful Paint)

Value31.8 s

0/100

25%

SI (Speed Index)

Value20.3 s

0/100

10%

TBT (Total Blocking Time)

Value4,860 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.053

98/100

15%

TTI (Time to Interactive)

Value30.7 s

0/100

10%

www.seibundo-shinkosha.net

2186 ms

colorbox.css

377 ms

import.css

371 ms

jquery.min.js

33 ms

css.js

550 ms

Our browser made a total of 112 requests to load all elements on the main page. We found that 94% of them (105 requests) were addressed to the original Seibundo-shinkosha.net, 2% (2 requests) were made to Google-analytics.com and 2% (2 requests) were made to Staticxx.facebook.com. The less responsive or slowest element that took the longest time to load (4.5 sec) belongs to the original domain Seibundo-shinkosha.net.

Content Size

1.4 MB

After Optimization

1.0 MB

In fact, the total size of Seibundo-shinkosha.net main page is 1.4 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. 35% of websites need less resources to load. Images take 973.2 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 159.7 kB

Original 193.5 kB
After minification 183.3 kB
After compression 33.8 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 159.7 kB or 83% of the original size.

Image Optimization

-8%

Potential reduce by 77.2 kB

Original 973.2 kB
After minification 896.0 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. Seibundo Shinkosha images are well optimized though.

JavaScript Optimization

-62%

Potential reduce by 122.4 kB

Original 196.6 kB
After minification 154.9 kB
After compression 74.1 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 122.4 kB or 62% of the original size.

CSS Optimization

-84%

Potential reduce by 45.2 kB

Original 54.0 kB
After minification 33.8 kB
After compression 8.9 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. Seibundo-shinkosha.net needs all CSS files to be minified and compressed as it can save up to 45.2 kB or 84% of the original size.

Requests Now

111

After Optimization

The browser has sent 111 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Seibundo Shinkosha. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 11 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 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 are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

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

Low

Detected JavaScript libraries

Search Engine Optimization Advices

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

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Seibundo-shinkosha.net 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 Seibundo-shinkosha.net main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

seibundo-shinkosha.net

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

株式会社誠文堂新光社 | あなたの「好き」を、もっと深いところまで。そんな思いで１００年。

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

www.seibundo-shinkosha.net

colorbox.css

import.css

jquery.min.js

css.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

www.seibundo-shinkosha.net

colorbox.css

import.css

jquery.min.js

css.js

navi.js

win_op.js

site.js

accordion.js

jquery.bxslider.js

eccube.js

eccube.legacy.js

jquery.colorbox-min.js

jquery.bxslider.css

reset.css

common.css

contents.css

table.css

bloc.css

bloc_alpha.css

popup.css

print.css

analytics.js

bg_header2.jpg

logo2.gif

mypage.gif

member.gif

cartin.gif

btn_tokusetsu_off.jpg

bnr_eclipse2016.jpg

bar_tainai.jpg

btn_magazines.jpg

1.jpg

3.jpg

4.jpg

5.jpg

6n.jpg

7.jpg

8.jpg

9.jpg

10.jpg

11.jpg

nenkei.jpg