Tools & Wizards About Us
biz-book.jp screenshot

Report Summary

  • 58

    Performance

    Renders faster than
    74% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 72% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

biz-book.jp

ビジネス専門書オンライン | 社会科学全般に関する専門書籍、雑誌の発行。

Page Load Speed

4.7 sec in total

First Response

489 ms

Resources Loaded

4 sec

Page Rendered

184 ms

biz-book.jp screenshot

About Website

Welcome to biz-book.jp homepage info - get ready to check Biz Book best content for Japan right away, or after learning these important things about biz-book.jp

出版社の中央経済社が運営するビジネス専門書オンラインでは、経済、経営、法律、会計、税務、その他ビジネスに関するあらゆる専門書籍、雑誌をお求めいただけます。

Visit biz-book.jp

Key Findings

We analyzed Biz-book.jp page load time and found that the first response time was 489 ms and then it took 4.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

biz-book.jp performance score

58

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

34/100

10%

LCP (Largest Contentful Paint)

Value13.4 s

0/100

25%

SI (Speed Index)

Value6.6 s

37/100

10%

TBT (Total Blocking Time)

Value90 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.014

100/100

15%

TTI (Time to Interactive)

Value6.5 s

58/100

10%

Network Requests Diagram

biz-book.jp

489 ms

www.chuokeizai.co.jp

536 ms

common.css

291 ms

newhome.css

292 ms

json

934 ms

Our browser made a total of 66 requests to load all elements on the main page. We found that 23% of them (15 requests) were addressed to the original Biz-book.jp, 71% (47 requests) were made to Chuokeizai.co.jp and 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2.2 sec) relates to the external source Chuokeizai.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 50.9 kB (20%)

Content Size

260.1 kB

After Optimization

209.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Biz-book.jp main page is 260.1 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. 30% of websites need less resources to load. Images take 192.3 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 13.9 kB

  • Original 19.0 kB
  • After minification 16.8 kB
  • After compression 5.1 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 2.2 kB, which is 12% 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 13.9 kB or 73% of the original size.

Image Optimization

-10%

Potential reduce by 19.0 kB

  • Original 192.3 kB
  • After minification 173.3 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. Biz Book images are well optimized though.

JavaScript Optimization

-7%

Potential reduce by 1.9 kB

  • Original 29.1 kB
  • After minification 29.0 kB
  • After compression 27.2 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. This website has mostly compressed JavaScripts.

CSS Optimization

-81%

Potential reduce by 16.1 kB

  • Original 19.8 kB
  • After minification 16.4 kB
  • After compression 3.7 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. Biz-book.jp needs all CSS files to be minified and compressed as it can save up to 16.1 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 16 (25%)

Requests Now

64

After Optimization

48

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 64 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Biz Book. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

biz-book.jp

biz-book.jp

489 ms

www.chuokeizai.co.jp

www.chuokeizai.co.jp

536 ms

common.css

common.css

291 ms

newhome.css

newhome.css

292 ms

json

json

934 ms

index.js

index.js

377 ms

ga.js

ga.js

66 ms

bg.gif

bg.gif

318 ms

bg_main.gif

bg_main.gif

339 ms

bg_header3.gif

bg_header3.gif

511 ms

logo.gif

logo.gif

363 ms

btn_english2.gif

btn_english2.gif

364 ms

btn_home2.gif

btn_home2.gif

364 ms

btn_access2.gif

btn_access2.gif

621 ms

btn_inq2.gif

btn_inq2.gif

648 ms

bnr_app2.gif

bnr_app2.gif

650 ms

bnr_zeinomado2.jpg

bnr_zeinomado2.jpg

871 ms

bntB.gif

bntB.gif

748 ms

btn_kensaku.gif

btn_kensaku.gif

870 ms

bg_gmenu2.gif

bg_gmenu2.gif

928 ms

gmenu5.gif

gmenu5.gif

1077 ms

title_official.gif

title_official.gif

1009 ms

title_buy.gif

title_buy.gif

1040 ms

mainblock_bg.gif

mainblock_bg.gif

1180 ms

title_invest.gif

title_invest.gif

1190 ms

left_list.gif

left_list.gif

1268 ms

title_about.gif

title_about.gif

1307 ms

title_recruit.gif

title_recruit.gif

1350 ms

left_bottom.gif

left_bottom.gif

1419 ms

left_right_bg.gif

left_right_bg.gif

1498 ms

title_topics.gif

title_topics.gif

1541 ms

title_press.gif

title_press.gif

1634 ms

rss.gif

rss.gif

1667 ms

left_right_list.gif

left_right_list.gif

1662 ms

pdf.gif

pdf.gif

1707 ms

title_oshirase.gif

title_oshirase.gif

1872 ms

twtter_official.gif

twtter_official.gif

1899 ms

bnr_jinbo.gif

bnr_jinbo.gif

1943 ms

bnr_co2top.jpg

bnr_co2top.jpg

1974 ms

title_right_big.gif

title_right_big.gif

2207 ms

title_zasshi.gif

title_zasshi.gif

1996 ms

sub_menu_head.gif

sub_menu_head.gif

2216 ms

kk.jpg

kk.jpg

554 ms

kj.jpg

kj.jpg

555 ms

z.jpg

z.jpg

585 ms

k.jpg

k.jpg

586 ms

b.jpg

b.jpg

625 ms

sub_menu_bg.gif

sub_menu_bg.gif

2241 ms

__utm.gif

__utm.gif

11 ms

sub_menu_list.gif

sub_menu_list.gif

1949 ms

sub_menu_icon.gif

sub_menu_icon.gif

1957 ms

db_library.jpg

db_library.jpg

2074 ms

twitter_kaikei2.gif

twitter_kaikei2.gif

2203 ms

bj_twitter.gif

bj_twitter.gif

2213 ms

mainblock_bottom.gif

mainblock_bottom.gif

2115 ms

bg_footer.gif

bg_footer.gif

2011 ms

978-4-502-18151-1_120.jpg

978-4-502-18151-1_120.jpg

289 ms

978-4-502-17141-3_120.jpg

978-4-502-17141-3_120.jpg

293 ms

978-4-502-18361-4_120.jpg

978-4-502-18361-4_120.jpg

314 ms

978-4-502-18311-9_120.jpg

978-4-502-18311-9_120.jpg

331 ms

978-4-502-18351-5_120.jpg

978-4-502-18351-5_120.jpg

333 ms

978-4-502-17501-5_120.jpg

978-4-502-17501-5_120.jpg

342 ms

978-4-502-18241-9_120.jpg

978-4-502-18241-9_120.jpg

604 ms

978-4-502-18891-6_120.jpg

978-4-502-18891-6_120.jpg

649 ms

uh.js

uh.js

514 ms

btn_pagetop.gif

btn_pagetop.gif

2008 ms

Accessibility Review

biz-book.jp accessibility score

89

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

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

Names and labels

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.

Impact

Issue

High

Links do not have a discernible name

Best Practices

biz-book.jp best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

biz-book.jp SEO score

100

Search Engine Optimization Advices

Mobile Friendly

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/).

Impact

Issue

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Biz-book.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 Biz-book.jp 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

biz-book.jp

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