Tools & Wizards About Us
jpba.or.jp screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 77

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

jpba.or.jp

公益社団法人 日本プロボウリング協会

Page Load Speed

5.7 sec in total

First Response

1.1 sec

Resources Loaded

4.4 sec

Page Rendered

215 ms

jpba.or.jp screenshot

About Website

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

公益社団法人 日本プロボウリング協会は、プロボウリングを統括し代表する団体として、健全なるプロボウラーの育成に努めるとともに、指導者の資格認定・登録並びに養成・研修を行い、児童・青少年及び一般愛好者への普及 ・育成を図り、もって国民の心身の健全な発達と豊かな人間性の涵養を図ります。

Visit jpba.or.jp

Key Findings

We analyzed Jpba.or.jp page load time and found that the first response time was 1.1 sec and then it took 4.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

jpba.or.jp performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.0 s

0/100

10%

LCP (Largest Contentful Paint)

Value9.2 s

1/100

25%

SI (Speed Index)

Value14.4 s

1/100

10%

TBT (Total Blocking Time)

Value1,140 ms

22/100

30%

CLS (Cumulative Layout Shift)

Value0.214

58/100

15%

TTI (Time to Interactive)

Value23.0 s

1/100

10%

Network Requests Diagram

jpba.or.jp

1090 ms

jpba.css

504 ms

TOP.gif

661 ms

menu_top1.gif

343 ms

menu_calendar1.gif

353 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that all of those requests were addressed to Jpba.or.jp and no external sources were called. The less responsive or slowest element that took the longest time to load (3 sec) belongs to the original domain Jpba.or.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 28.2 kB (20%)

Content Size

138.8 kB

After Optimization

110.6 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Jpba.or.jp main page is 138.8 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. Only 10% of websites need less resources to load. Images take 109.3 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 19.8 kB

  • Original 25.2 kB
  • After minification 22.8 kB
  • After compression 5.3 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. 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 19.8 kB or 79% of the original size.

Image Optimization

-4%

Potential reduce by 4.9 kB

  • Original 109.3 kB
  • After minification 104.4 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. Jpba images are well optimized though.

CSS Optimization

-80%

Potential reduce by 3.5 kB

  • Original 4.4 kB
  • After minification 3.6 kB
  • After compression 868 B

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. Jpba.or.jp needs all CSS files to be minified and compressed as it can save up to 3.5 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (16%)

Requests Now

45

After Optimization

38

  • Images
  • CSS

The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jpba. 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

jpba.or.jp

jpba.or.jp

1090 ms

jpba.css

jpba.css

504 ms

TOP.gif

TOP.gif

661 ms

menu_top1.gif

menu_top1.gif

343 ms

menu_calendar1.gif

menu_calendar1.gif

353 ms

menu_list1.gif

menu_list1.gif

365 ms

menu_tournament1.gif

menu_tournament1.gif

386 ms

menu_approval1.gif

menu_approval1.gif

519 ms

menu_instructor1.gif

menu_instructor1.gif

682 ms

menu_protest1.gif

menu_protest1.gif

693 ms

menu_tv1.gif

menu_tv1.gif

729 ms

menu_charity1.gif

menu_charity1.gif

751 ms

menu_topics1.gif

menu_topics1.gif

890 ms

bar_tour.gif

bar_tour.gif

987 ms

Poster.jpg

Poster.jpg

1364 ms

bar_protest.gif

bar_protest.gif

1283 ms

16poster2.gif

16poster2.gif

1399 ms

bar_inst.gif

bar_inst.gif

1127 ms

bar_topics.gif

bar_topics.gif

1243 ms

0224.jpg

0224.jpg

1997 ms

PDF.gif

PDF.gif

1701 ms

SP_sport.gif

SP_sport.gif

1571 ms

SP_R1.gif

SP_R1.gif

1665 ms

SP_JBP.gif

SP_JBP.gif

1717 ms

SP_Tomikoshi.gif

SP_Tomikoshi.gif

1749 ms

SP_Yoshikawa.gif

SP_Yoshikawa.gif

1941 ms

SP_LTB.gif

SP_LTB.gif

2028 ms

SP_Tochiotome.gif

SP_Tochiotome.gif

2229 ms

SP_WH.gif

SP_WH.gif

2053 ms

SP_ITC.gif

SP_ITC.gif

2122 ms

SP_Tsukuba.gif

SP_Tsukuba.gif

2305 ms

top17_MizutaniAma.jpg

top17_MizutaniAma.jpg

3039 ms

PLEAGUE.gif

PLEAGUE.gif

2378 ms

bn_jpsa.gif

bn_jpsa.gif

2376 ms

skyA.gif

skyA.gif

2446 ms

Chunichi.png

Chunichi.png

2742 ms

bn_bcj.gif

bn_bcj.gif

2655 ms

bn_bpj.gif

bn_bpj.gif

2664 ms

bn_jbc.gif

bn_jbc.gif

2393 ms

bn_nbf.gif

bn_nbf.gif

2520 ms

bn_abbf.gif

bn_abbf.gif

2656 ms

bn_jlbc.gif

bn_jlbc.gif

2671 ms

bn_JARBA.gif

bn_JARBA.gif

2579 ms

WTBA.gif

WTBA.gif

2433 ms

bn_pba.gif

bn_pba.gif

2523 ms

bn_kpba.gif

bn_kpba.gif

2645 ms

Accessibility Review

jpba.or.jp accessibility score

77

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

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

jpba.or.jp best practices score

58

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

jpba.or.jp SEO score

92

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

    SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jpba.or.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 Jpba.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

jpba.or.jp

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