Analyze 日本テニス協会公式サイト - ホームページ

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。

Page load speed analysis

  • 13/100

    Poor result
  • 3

    Successful tests
  • 5

    Failed tests
  • First response

    2.1 sec

  • Resources loaded

    10.6 sec

  • Page rendered

    2 sec

  • Total page load time

    14.7 sec

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

We analyzed page load time and found that the first response time was 2.1 sec and then it took 12.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster. This domain responded with an error, which can significantly jeopardize rating and web reputation

Page optimization

  • HTML 127.7 kB
    Images 3.9 MB
    Javascripts 532.2 kB
    CSS 140.2 kB

    In fact, the total size of main page is 4.7 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. 35% of websites need less resources to load. Images take 3.9 MB which makes up the majority of the site volume.

    • Original 127.7 kB
    • After minification 124.9 kB
    • After compression 27.7 kB

    HTML optimization

    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 100.0 kB or 78% of the original size.

    • Original 3.9 MB
    • After optimization 3.9 MB

    Image optimization

    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.

    • Original 532.2 kB
    • After minification 455.0 kB
    • After compression 137.5 kB

    JavaScript optimization

    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 394.7 kB or 74% of the original size.

    • Original 140.2 kB
    • After minification 111.4 kB
    • After compression 22.1 kB

    CSS optimization

    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. needs all CSS files to be minified and compressed as it can save up to 118.1 kB or 84% of the original size.

Network requests diagram

  • module.css
  • default.css
  • skin.css
  • container.css
  • styles.css
  • portal.css
  • smoothscroll.js
  • WebResource.axd
  • dnncore.js
  • dnn.js
  • ScriptResource.axd
  • ScriptResource.axd
  • jquery-1.9.1.min.js
  • placeholder.js
  • jquery_cookie.js
  • fontsize.js
  • jquery.bxslider.css
  • jquery.bxslider.js
  • contents.css
  • jquery.js
  • jquery.easing.js
  • jquery.bxSlider.js
  • SEOAdmin.css
  • contents-match.css
  • contents-match02.css
  • analytics.js
  • logo.png
  • 20160209daniel.jpg
  • 20160209fedcup.jpg
  • 20160202soeda.jpg
  • 20160201kamiji.jpg
  • 20160201nishikori.jpg
  • icon_news.gif
  • ico_info.gif
  • ico_renew.gif
  • bnr_anti-doping-5.gif
  • bnr_jtastore.gif
  • bnr_tennisfan.gif
  • 20100426-flow.jpg
  • bnr_jwo.jpg
  • bnr_aj90.gif
  • bnr_daviscup.gif
  • bnr_fedcup.gif
  • bnr_olympic.gif
  • bnr_jsa.gif
  • bnr_jiss.gif
  • bnr_ntc.gif
  • bnr_sportsSafety.gif
  • bnr_tokyo2020.gif
  • bnr_toto.gif
  • bnr_jtc.gif
  • bnr_playstay.gif
  • bnr_tennisday.gif
  • img_footerLogo.png
  • bg_mainBody.png
  • ttl_fontSize.png
  • bg_fontSize.png
  • btn_serch.png
  • btn_contact.png
  • bg_headBody.png
  • collect
  • bg_mainBody_head.png
  • gNav.png
  • bg_white.png
  • bg_black.png
  • bg_tab_topnews.png
  • bg_newsListIndex.png
  • bg_blue.png
  • bg_h1.png
  • bg_h2.png
  • bg_pagetop.png
  • arrow_blue.png
  • bx_loader.gif
  • btn_off.png
  • arrowWhite_left.png
  • arrowWhite_right.png
  • btn_play.png
  • btn_pause.png
  • btn_on.png
  • ico_pdf.png
  • btn_newsListIndex.png

Our browser made a total of 82 requests to load all elements on the main page. We found that 98% of them (80 requests) were addressed to the original, 2% (2 requests) were made to The less responsive or slowest element that took the longest time to load (7.1 sec) belongs to the original domain

Additional info on


The browser has sent 80 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 11 to 1 for CSS and as a result speed up the page load time.









Possible request optimization











Poor result

IP address

This IP address is dedicated to This is the best domain hosting practice .

Normal result

IP Trace

DNS records

Type Host Target/ip TTL Other
A 600
NS 600
NS 600

600 Mname:
Serial: 2021051700
Refresh: 36000
Retry: 300
Expire: 360000
Minimum-ttl: 36000
MX 600 Pri: 0

Language and encoding

Good result


JA ja language flag


JA ja language flag





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

HTTPS certificate

SSL Certificate has no SSL certificate. Web browsing can be safer with HTTPS connection, so we suggest that it should be obtained for this site.

Poor result

Visitor World Map

Country of origin for 97.9% of all visits is Japan. It’s good for that their server is also located in Japan, as that enables the majority of their visitors to benefit from a much faster page load time.

Good result

Poor result

Social Sharing Optimization

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:

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