Access ai-tennis.jp. 堺市深井のインドアテニススクールアイ・テニスクラブ

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

64/100

10%

LCP (Largest Contentful Paint)

Value6.0 s

13/100

25%

SI (Speed Index)

Value6.4 s

41/100

10%

TBT (Total Blocking Time)

Value510 ms

57/100

30%

CLS (Cumulative Layout Shift)

Value0.137

80/100

15%

TTI (Time to Interactive)

Value11.9 s

16/100

10%

ai-tennis.jp

849 ms

js

66 ms

js

113 ms

style.css

582 ms

openclose.js

392 ms

Our browser made a total of 78 requests to load all elements on the main page. We found that 40% of them (31 requests) were addressed to the original Ai-tennis.jp, 31% (24 requests) were made to Scontent.cdninstagram.com and 15% (12 requests) were made to Snapwidget.com. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Ai-tennis.jp.

Content Size

6.2 MB

After Optimization

5.9 MB

In fact, the total size of Ai-tennis.jp main page is 6.2 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. 45% of websites need less resources to load. Images take 6.0 MB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 9.3 kB

Original 13.4 kB
After minification 12.6 kB
After compression 4.2 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 9.3 kB or 69% of the original size.

Image Optimization

-4%

Potential reduce by 227.4 kB

Original 6.0 MB
After minification 5.8 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. Ai Tennis images are well optimized though.

JavaScript Optimization

-28%

Potential reduce by 38.8 kB

Original 140.5 kB
After minification 137.7 kB
After compression 101.7 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 38.8 kB or 28% of the original size.

CSS Optimization

-81%

Potential reduce by 37.7 kB

Original 46.9 kB
After minification 18.9 kB
After compression 9.1 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. Ai-tennis.jp needs all CSS files to be minified and compressed as it can save up to 37.7 kB or 81% of the original size.

Requests Now

After Optimization

The browser has sent 76 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ai 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 17 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

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

High

Image elements do not have [alt] attributes

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Browser errors were logged to the console

Search Engine Optimization Advices

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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/).

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 Ai-tennis.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 Ai-tennis.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

ai-tennis.jp

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

Report Summary

Performance

Accessibility

Best Practices

SEO

堺市深井のインドアテニススクール アイ・テニスクラブ

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

ai-tennis.jp

js

js

style.css

openclose.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

ai-tennis.jp

js

js

style.css

openclose.js

fixmenu.js

fixmenu_pagetop.js

ddmenu_min.js

styleswitcher.js

snapwidget.js

slide.css

header_bg.jpg

logo01.png

icon_tel.png

16.jpg

15.jpg

18.jpg

arrow1.png

top001.gif

top003.gif

top002.gif

top004.gif

top005.gif

top006.gif

top016.gif

top011.gif

top012.gif

top013.gif

rental02.gif

top014.gif

tokuten07.gif

ai-logo.w.png

992603

embed

arrow2.png

js

geometry.js

search.js

main.js

embed.vendor.min.760717b3f565c387.css

embed.style.min.41abd7aaef93351c.css

embed.grid.min.4069f6f840f9102b.css

js

堺市深井のインドアテニススクールアイ・テニスクラブ