Report Summary

  • 38

    Performance

    Renders faster than
    57% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

nishio-tennis.com

経験豊富なコーチが在籍。愛知県西尾市の西尾ローンテニスクラブ

Page Load Speed

6.2 sec in total

First Response

546 ms

Resources Loaded

5 sec

Page Rendered

648 ms

nishio-tennis.com screenshot

About Website

Welcome to nishio-tennis.com homepage info - get ready to check Nishio Tennis best content right away, or after learning these important things about nishio-tennis.com

愛知県西尾市にある西尾ローンテニスクラブです。8面のテニスコートを完備し、日本代表選手や全国大会に出ている現役選手など、実績のあるコーチが多く在籍しています。テニスを上手になりたい方、選手を目指す方におすすめです。

Visit nishio-tennis.com

Key Findings

We analyzed Nishio-tennis.com page load time and found that the first response time was 546 ms and then it took 5.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

nishio-tennis.com performance score

38

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.4 s

2/100

10%

LCP (Largest Contentful Paint)

Value14.8 s

0/100

25%

SI (Speed Index)

Value13.0 s

2/100

10%

TBT (Total Blocking Time)

Value350 ms

73/100

30%

CLS (Cumulative Layout Shift)

Value0.007

100/100

15%

TTI (Time to Interactive)

Value13.9 s

10/100

10%

Network Requests Diagram

nishio-tennis.com

546 ms

www.nishio-tennis.com

1596 ms

gtm.js

73 ms

css

42 ms

base.css

409 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that 66% of them (46 requests) were addressed to the original Nishio-tennis.com, 14% (10 requests) were made to Fonts.gstatic.com and 4% (3 requests) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (2.2 sec) belongs to the original domain Nishio-tennis.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 254.3 kB (10%)

Content Size

2.6 MB

After Optimization

2.4 MB

In fact, the total size of Nishio-tennis.com main page is 2.6 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. 55% of websites need less resources to load. Images take 2.4 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 45.4 kB

  • Original 56.3 kB
  • After minification 52.5 kB
  • After compression 10.9 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 45.4 kB or 81% of the original size.

Image Optimization

-4%

Potential reduce by 97.6 kB

  • Original 2.4 MB
  • After minification 2.3 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. Nishio Tennis images are well optimized though.

JavaScript Optimization

-35%

Potential reduce by 45.9 kB

  • Original 131.7 kB
  • After minification 123.9 kB
  • After compression 85.9 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 45.9 kB or 35% of the original size.

CSS Optimization

-84%

Potential reduce by 65.4 kB

  • Original 77.7 kB
  • After minification 59.9 kB
  • After compression 12.3 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. Nishio-tennis.com needs all CSS files to be minified and compressed as it can save up to 65.4 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (30%)

Requests Now

56

After Optimization

39

The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nishio 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 11 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

nishio-tennis.com accessibility score

83

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

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

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

nishio-tennis.com best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

nishio-tennis.com SEO score

92

Search Engine Optimization Advices

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 uses legible font sizes

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 Nishio-tennis.com 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 Nishio-tennis.com 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

Open Graph data is detected on the main page of Nishio Tennis. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: