7.7 sec in total
555 ms
6.2 sec
988 ms
Welcome to tennis-shop.jp homepage info - get ready to check Tennis Shop best content for Japan right away, or after learning these important things about tennis-shop.jp
テニスラケット・オリジナルテニス練習機を厳選販売、プロショップだから出来る安心を提供します。最新ラケット、中古ラケット、テニスバッグ、上達・練習グッズなど販売。テニスラケットを使用してからでも返品が出来る、新品ラケット21日間買取保証制度あり。
Visit tennis-shop.jpWe analyzed Tennis-shop.jp page load time and found that the first response time was 555 ms and then it took 7.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
tennis-shop.jp performance score
name
value
score
weighting
Value5.2 s
8/100
10%
Value9.6 s
0/100
25%
Value12.3 s
3/100
10%
Value11,650 ms
0/100
30%
Value0.38
27/100
15%
Value28.9 s
0/100
10%
555 ms
915 ms
519 ms
538 ms
362 ms
Our browser made a total of 143 requests to load all elements on the main page. We found that 50% of them (71 requests) were addressed to the original Tennis-shop.jp, 26% (37 requests) were made to Image.rakuten.co.jp and 7% (10 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (3.9 sec) relates to the external source Image.rakuten.co.jp.
Page size can be reduced by 241.5 kB (7%)
3.6 MB
3.4 MB
In fact, the total size of Tennis-shop.jp main page is 3.6 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. 60% of websites need less resources to load. Images take 3.3 MB which makes up the majority of the site volume.
Potential reduce by 68.1 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. This page needs HTML code to be minified as it can gain 31.7 kB, which is 40% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 68.1 kB or 87% of the original size.
Potential reduce by 5.3 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. Tennis Shop images are well optimized though.
Potential reduce by 75.1 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 75.1 kB or 54% of the original size.
Potential reduce by 93.1 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. Tennis-shop.jp needs all CSS files to be minified and compressed as it can save up to 93.1 kB or 90% of the original size.
Number of requests can be reduced by 27 (20%)
138
111
The browser has sent 138 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tennis Shop. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.
tennis-shop.jp
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tennis-shop.jp accessibility score
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
[aria-hidden="true"] elements contain focusable descendents
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
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
<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
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
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
Links do not have a discernible name
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
tennis-shop.jp best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
tennis-shop.jp SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
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
Document uses legible font sizes
Tap targets are not sized appropriately
JA
JA
SHIFT_JIS
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tennis-shop.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 Tennis-shop.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.
tennis-shop.jp
Open Graph description is not detected on the main page of Tennis Shop. 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: