Report Summary

  • 52

    Performance

    Renders faster than
    69% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

jbpa.or.jp

一般社団法人 日本書籍出版協会 | 一般社団法人 日本書籍出版協会

Page Load Speed

6.3 sec in total

First Response

559 ms

Resources Loaded

5.5 sec

Page Rendered

183 ms

jbpa.or.jp screenshot

About Website

Visit jbpa.or.jp now to see the best up-to-date Jbpa content for Japan and also check out these interesting facts you probably never knew about jbpa.or.jp

出版事業に関わる活動を行う一般社団法人日本書籍出版協会(JBPA)は、再販制度、著作権、出版契約などへの取組みを行っております。

Visit jbpa.or.jp

Key Findings

We analyzed Jbpa.or.jp page load time and found that the first response time was 559 ms and then it took 5.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

jbpa.or.jp performance score

52

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

16/100

10%

LCP (Largest Contentful Paint)

Value7.6 s

3/100

25%

SI (Speed Index)

Value8.2 s

20/100

10%

TBT (Total Blocking Time)

Value180 ms

92/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value6.9 s

53/100

10%

Network Requests Diagram

jbpa.or.jp

559 ms

www.jbpa.or.jp

905 ms

DropDownMenu.js

177 ms

import.css

352 ms

jquery.min.js

16 ms

Our browser made a total of 116 requests to load all elements on the main page. We found that 92% of them (107 requests) were addressed to the original Jbpa.or.jp, 5% (6 requests) were made to Google.com and 2% (2 requests) were made to Cse.google.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Jbpa.or.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 53.8 kB (11%)

Content Size

495.8 kB

After Optimization

442.0 kB

In fact, the total size of Jbpa.or.jp main page is 495.8 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. 35% of websites need less resources to load. Images take 243.1 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 22.7 kB

  • Original 32.5 kB
  • After minification 30.5 kB
  • After compression 9.8 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 22.7 kB or 70% of the original size.

Image Optimization

-8%

Potential reduce by 19.8 kB

  • Original 243.1 kB
  • After minification 223.3 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. Jbpa images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 3.0 kB

  • Original 197.3 kB
  • After minification 196.0 kB
  • After compression 194.3 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. This website has mostly compressed JavaScripts.

CSS Optimization

-36%

Potential reduce by 8.4 kB

  • Original 22.9 kB
  • After minification 22.6 kB
  • After compression 14.6 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. Jbpa.or.jp needs all CSS files to be minified and compressed as it can save up to 8.4 kB or 36% of the original size.

Requests Breakdown

Number of requests can be reduced by 56 (49%)

Requests Now

114

After Optimization

58

The browser has sent 114 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jbpa. 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 8 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

jbpa.or.jp accessibility score

75

Accessibility Issues

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

Image elements do not have [alt] attributes

High

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

High

Form elements do not have associated labels

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

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

Best Practices

jbpa.or.jp best practices score

67

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

jbpa.or.jp SEO score

67

Search Engine Optimization Advices

Content Best Practices

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

Impact

Issue

High

Image elements do not have [alt] attributes

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 Jbpa.or.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 Jbpa.or.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

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