Tools & Wizards About Us
jta-tennis.or.jp screenshot

Report Summary

  • 23

    Performance

    Renders faster than
    42% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 78

    SEO

    Google-friendlier than
    39% of websites

jta-tennis.or.jp

日本テニス協会公式サイト - ホームページ

Page Load Speed

7.1 sec in total

First Response

497 ms

Resources Loaded

6.2 sec

Page Rendered

353 ms

jta-tennis.or.jp screenshot

About Website

Click here to check amazing Jta Tennis content for Japan. Otherwise, check out these important facts you probably never knew about jta-tennis.or.jp

日本テニス協会 Japan Tennis Associationの公式サイトです。テニスを愛するすべての人々へJTAからの情報を広く提供し、日本のテニスを振興することを企図して運営されています。

Visit jta-tennis.or.jp

Key Findings

We analyzed Jta-tennis.or.jp page load time and found that the first response time was 497 ms and then it took 6.6 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

jta-tennis.or.jp performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.3 s

1/100

10%

LCP (Largest Contentful Paint)

Value14.9 s

0/100

25%

SI (Speed Index)

Value12.8 s

3/100

10%

TBT (Total Blocking Time)

Value440 ms

64/100

30%

CLS (Cumulative Layout Shift)

Value0.554

13/100

15%

TTI (Time to Interactive)

Value13.4 s

11/100

10%

Network Requests Diagram

jta-tennis.or.jp

497 ms

jta-tennis.or.jp

2027 ms

module.css

655 ms

default.css

658 ms

skin.css

655 ms

Our browser made a total of 94 requests to load all elements on the main page. We found that 93% of them (87 requests) were addressed to the original Jta-tennis.or.jp, 3% (3 requests) were made to Google-analytics.com and 1% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (2.3 sec) belongs to the original domain Jta-tennis.or.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 204.2 kB (8%)

Content Size

2.4 MB

After Optimization

2.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jta-tennis.or.jp main page is 2.4 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. 50% of websites need less resources to load. Images take 2.1 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 139.5 kB

  • Original 176.5 kB
  • After minification 172.8 kB
  • After compression 37.0 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 139.5 kB or 79% of the original size.

Image Optimization

-2%

Potential reduce by 35.0 kB

  • Original 2.1 MB
  • After minification 2.0 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. Jta Tennis images are well optimized though.

JavaScript Optimization

-13%

Potential reduce by 19.5 kB

  • Original 155.1 kB
  • After minification 154.9 kB
  • After compression 135.6 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 19.5 kB or 13% of the original size.

CSS Optimization

-29%

Potential reduce by 10.1 kB

  • Original 35.4 kB
  • After minification 34.2 kB
  • After compression 25.3 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. Jta-tennis.or.jp needs all CSS files to be minified and compressed as it can save up to 10.1 kB or 29% of the original size.

Requests Breakdown

Number of requests can be reduced by 49 (54%)

Requests Now

91

After Optimization

42

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 91 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jta Tennis. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

jta-tennis.or.jp

jta-tennis.or.jp

497 ms

jta-tennis.or.jp

jta-tennis.or.jp

2027 ms

module.css

module.css

655 ms

default.css

default.css

658 ms

skin.css

skin.css

655 ms

container.css

container.css

671 ms

styles.css

styles.css

670 ms

portal.css

portal.css

798 ms

smoothscroll.js

smoothscroll.js

813 ms

js

js

60 ms

dnncore.js

dnncore.js

339 ms

dnn.js

dnn.js

497 ms

MicrosoftAjax.ja.js

MicrosoftAjax.ja.js

512 ms

jquery-1.9.1.min.js

jquery-1.9.1.min.js

526 ms

placeholder.js

placeholder.js

482 ms

jquery_cookie.js

jquery_cookie.js

498 ms

fontsize.js

fontsize.js

497 ms

common.js

common.js

641 ms

jquery.bxslider.css

jquery.bxslider.css

497 ms

jquery.bxslider.js

jquery.bxslider.js

498 ms

jquery.js

jquery.js

830 ms

jquery.easing.js

jquery.easing.js

514 ms

jquery.bxSlider.js

jquery.bxSlider.js

692 ms

contents.css

contents.css

621 ms

SEOAdmin.css

SEOAdmin.css

633 ms

contents-match.css

contents-match.css

161 ms

contents-match02.css

contents-match02.css

160 ms

contents_lp.css

contents_lp.css

162 ms

css

css

32 ms

analytics.js

analytics.js

133 ms

logo-jtav4.png

logo-jtav4.png

185 ms

btn_eng_sp.png

btn_eng_sp.png

256 ms

bnr_playandstay2021.jpg

bnr_playandstay2021.jpg

454 ms

20240413japan.jpg

20240413japan.jpg

1014 ms

20240325wjtbao.jpg

20240325wjtbao.jpg

1047 ms

20240318wjtgao.jpg

20240318wjtgao.jpg

1267 ms

20240218japanleague.jpg

20240218japanleague.jpg

1025 ms

20240203daviscup.jpg

20240203daviscup.jpg

1219 ms

icon_news.gif

icon_news.gif

842 ms

ico_renew.gif

ico_renew.gif

1060 ms

ico_info.gif

ico_info.gif

1172 ms

bnr_playandstay2021_s.jpg

bnr_playandstay2021_s.jpg

1173 ms

bnr_covid-19_2022.png

bnr_covid-19_2022.png

1205 ms

bnr_jtastore_s.png

bnr_jtastore_s.png

1247 ms

bnr_tennisfan_s.png

bnr_tennisfan_s.png

1332 ms

jo2023.png

jo2023.png

1332 ms

bnr_aj2023.png

bnr_aj2023.png

1366 ms

bnr_dc.png

bnr_dc.png

1376 ms

bnr_bjkc.png

bnr_bjkc.png

1405 ms

lipovitan.png

lipovitan.png

1424 ms

bioreuv2022.png

bioreuv2022.png

1488 ms

bnr_jal.png

bnr_jal.png

1489 ms

bnr_olympic.gif

bnr_olympic.gif

1526 ms

bnr_jsa.gif

bnr_jsa.gif

1534 ms

bnr_jiss.gif

bnr_jiss.gif

1563 ms

bnr_ntc.gif

bnr_ntc.gif

1581 ms

bnr_toto.png

bnr_toto.png

1647 ms

bnr_growing.png

bnr_growing.png

1650 ms

bnr_sportsSafety.gif

bnr_sportsSafety.gif

1685 ms

bnr_jtc.gif

bnr_jtc.gif

1692 ms

bnr_tennisday.gif

bnr_tennisday.gif

1720 ms

bnr_jada.jpg

bnr_jada.jpg

1740 ms

bnr_spohara.png

bnr_spohara.png

1805 ms

img_footerLogo_w_2022.png

img_footerLogo_w_2022.png

1808 ms

bg_mainBody.png

bg_mainBody.png

2261 ms

ttl_fontSize.png

ttl_fontSize.png

1897 ms

collect

collect

25 ms

collect

collect

21 ms

bg_fontSize.png

bg_fontSize.png

1788 ms

collect

collect

76 ms

btn_serch.png

btn_serch.png

1726 ms

ga-audiences

ga-audiences

80 ms

btn_contact.png

btn_contact.png

1516 ms

gNav.png

gNav.png

1130 ms

bg_headBody.png

bg_headBody.png

1183 ms

bg_mainBody_head.png

bg_mainBody_head.png

1182 ms

bg_white.png

bg_white.png

1160 ms

bg_black.png

bg_black.png

1194 ms

arrow_newslist.png

arrow_newslist.png

1082 ms

bg_tab_topnews.png

bg_tab_topnews.png

1205 ms

bg_newsListIndex.png

bg_newsListIndex.png

1174 ms

bg_blue.png

bg_blue.png

1161 ms

bg_h1.png

bg_h1.png

1165 ms

bg_h2.png

bg_h2.png

1147 ms

bg_pagetop.png

bg_pagetop.png

1158 ms

arrow_blue.png

arrow_blue.png

1203 ms

bx_loader.gif

bx_loader.gif

1172 ms

btn_off.png

btn_off.png

1160 ms

arrowWhite_left.png

arrowWhite_left.png

1165 ms

arrowWhite_right.png

arrowWhite_right.png

1146 ms

btn_play.png

btn_play.png

1160 ms

btn_pause.png

btn_pause.png

1204 ms

btn_on.png

btn_on.png

1168 ms

ico_pdf.png

ico_pdf.png

160 ms

Accessibility Review

jta-tennis.or.jp accessibility score

71

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

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

jta-tennis.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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

jta-tennis.or.jp SEO score

78

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

Links do not have descriptive text

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 doesn't use 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 Jta-tennis.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 Jta-tennis.or.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

jta-tennis.or.jp

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