Tools & Wizards About Us
kojimaboat.jp screenshot

Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 51% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

kojimaboat.jp

ボートレース児島オフィシャルウェブサイト

Page Load Speed

7.4 sec in total

First Response

712 ms

Resources Loaded

6.3 sec

Page Rendered

394 ms

kojimaboat.jp screenshot

About Website

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

ボートレース児島の公式サイトです。レースライブをはじめとした映像配信やリアルタイムレース情報、最新トピックスなどボートレース児島を楽しめる情報が満載です。

Visit kojimaboat.jp

Key Findings

We analyzed Kojimaboat.jp page load time and found that the first response time was 712 ms and then it took 6.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

kojimaboat.jp performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.9 s

0/100

10%

LCP (Largest Contentful Paint)

Value24.4 s

0/100

25%

SI (Speed Index)

Value16.9 s

0/100

10%

TBT (Total Blocking Time)

Value8,640 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value44.2 s

0/100

10%

Network Requests Diagram

kojimaboat.jp

712 ms

swiper.min.js

661 ms

swiper.min_n.css

499 ms

top_header2021.css

335 ms

common2019.css

340 ms

Our browser made a total of 209 requests to load all elements on the main page. We found that 63% of them (132 requests) were addressed to the original Kojimaboat.jp, 13% (28 requests) were made to Static.xx.fbcdn.net and 8% (17 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (2.8 sec) belongs to the original domain Kojimaboat.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 304.4 kB (8%)

Content Size

3.8 MB

After Optimization

3.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Kojimaboat.jp main page is 3.8 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. Only a small number of websites need less resources to load. Images take 3.0 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 50.4 kB

  • Original 64.6 kB
  • After minification 61.2 kB
  • After compression 14.2 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 50.4 kB or 78% of the original size.

Image Optimization

-3%

Potential reduce by 83.9 kB

  • Original 3.0 MB
  • After minification 2.9 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. Kojimaboat images are well optimized though.

JavaScript Optimization

-27%

Potential reduce by 158.5 kB

  • Original 598.2 kB
  • After minification 598.1 kB
  • After compression 439.6 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 158.5 kB or 27% of the original size.

CSS Optimization

-8%

Potential reduce by 11.6 kB

  • Original 140.1 kB
  • After minification 138.4 kB
  • After compression 128.5 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. Kojimaboat.jp has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 69 (34%)

Requests Now

202

After Optimization

133

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 202 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kojimaboat. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 43 to 1 for JavaScripts and from 19 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

kojimaboat.jp

kojimaboat.jp

712 ms

swiper.min.js

swiper.min.js

661 ms

swiper.min_n.css

swiper.min_n.css

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top_header2021.css

top_header2021.css

335 ms

common2019.css

common2019.css

340 ms

style_main2018.css

style_main2018.css

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home2020_ct.css

home2020_ct.css

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540 ms

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581 ms

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539 ms

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538 ms

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542 ms

5275843250123162015

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579 ms

UXtr_j2Fwe-.png

UXtr_j2Fwe-.png

164 ms

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mUnDZSrH5OM.png

163 ms

teichan_banner.gif

teichan_banner.gif

1321 ms

1f525.png

1f525.png

61 ms

2049.png

2049.png

61 ms

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63 ms

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60 ms

26a0.png

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61 ms

1f979.png

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59 ms

bosyu.jpg

bosyu.jpg

1030 ms

boatraceweb.jpg

boatraceweb.jpg

1031 ms

br-racers2024_160%C3%9740.png

br-racers2024_160%C3%9740.png

1036 ms

tereboat160_40.jpg

tereboat160_40.jpg

1154 ms

boat_race_kouhou02.jpg

boat_race_kouhou02.jpg

1165 ms

ie38mp0O07P.js

ie38mp0O07P.js

10 ms

boatraceguide.gif

boatraceguide.gif

1115 ms

GenerateIT

GenerateIT

28 ms

GenerateIT

GenerateIT

23 ms

GenerateIT

GenerateIT

21 ms

GenerateIT

GenerateIT

22 ms

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boatcast_160%C3%9740.jpg

1043 ms

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kojima_rivets_160_40.png

1037 ms

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point_7.png

1037 ms

ksmartcard_bnr.jpg

ksmartcard_bnr.jpg

999 ms

BSfuji.jpg

BSfuji.jpg

1008 ms

kyotei_news.gif

kyotei_news.gif

1007 ms

kuratoco_logo_forkojima_160-40.jpg

kuratoco_logo_forkojima_160-40.jpg

1037 ms

kct_banner160_40.png

kct_banner160_40.png

1028 ms

KCT.jpg

KCT.jpg

1032 ms

2024_g1_suminoe.jpg

2024_g1_suminoe.jpg

998 ms

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2024_g1_gama.gif

1007 ms

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champ70.gif

1015 ms

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202406GIIIEW.gif

1377 ms

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koshien_banner160_40.jpg

1038 ms

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2025g1sqm_hamanako.gif

1384 ms

copyright.png

copyright.png

998 ms

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qr_img.png

1007 ms

contact.png

contact.png

1016 ms

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howtouse.png

1039 ms

link.png

link.png

1136 ms

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sitemap.png

1144 ms

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privacypolicy.png

1021 ms

top_image.png

top_image.png

1067 ms

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today_sche_bk.jpg

1160 ms

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1309 ms

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1153 ms

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main_bk_img.gif

1200 ms

log_event

log_event

21 ms

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controls_l.png

1079 ms

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1074 ms

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footer_b.png

1155 ms

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1150 ms

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controls_lc.png

1205 ms

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1205 ms

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ajax-loader.gif

1091 ms

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log_event

21 ms

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23 ms

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17 ms

Accessibility Review

kojimaboat.jp accessibility score

81

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

ARIA input fields do not have accessible names

High

ARIA toggle fields do not have accessible names

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

Image elements do not have [alt] attributes

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

kojimaboat.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

High

Page has valid source maps

SEO Factors

kojimaboat.jp SEO score

82

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

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

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 Kojimaboat.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 Kojimaboat.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

kojimaboat.jp

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