Access dancevillage.jp. ダンススクールで初心者に人気｜新宿・渋谷・池袋20代30代女子の東京ダンスヴィレッジ

dancevillage.jp screenshot

6

Performance

Renders faster than
21% of other websites
79

Accessibility

Visual factors better than
that of 48% of websites
67

Best Practices

More advanced features
available than in
24% of websites
83

SEO

Google-friendlier than
46% of websites

First Response

2 sec

Resources Loaded

6.7 sec

Page Rendered

551 ms

dancevillage.jp screenshot

About Website

Welcome to dancevillage.jp homepage info - get ready to check Dancevillage best content for Japan right away, or after learning these important things about dancevillage.jp

ダンススクールを初心者が東京で選ぶなら東京ダンスヴィレッジ。新宿駅・池袋駅・渋谷駅1分初心者20代30代女子のためのダンススクール。体験レッスン無料。

Visit dancevillage.jp

Key Findings

We analyzed Dancevillage.jp page load time and found that the first response time was 2 sec and then it took 7.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

12/100

10%

LCP (Largest Contentful Paint)

Value19.2 s

0/100

25%

SI (Speed Index)

Value11.3 s

5/100

10%

TBT (Total Blocking Time)

Value2,010 ms

7/100

30%

CLS (Cumulative Layout Shift)

Value0.525

14/100

15%

TTI (Time to Interactive)

Value20.0 s

2/100

10%

dancevillage.jp

2014 ms

style.css

1188 ms

import.css

356 ms

top.css

546 ms

colorbox.css

548 ms

Our browser made a total of 167 requests to load all elements on the main page. We found that 69% of them (115 requests) were addressed to the original Dancevillage.jp, 4% (7 requests) were made to Rs.adapf.com and 3% (5 requests) were made to Facebook.com. The less responsive or slowest element that took the longest time to load (2 sec) belongs to the original domain Dancevillage.jp.

Content Size

4.5 MB

After Optimization

3.9 MB

In fact, the total size of Dancevillage.jp main page is 4.5 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 3.9 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 75.5 kB

Original 88.6 kB
After minification 75.2 kB
After compression 13.1 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 13.4 kB, which is 15% 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 75.5 kB or 85% of the original size.

Image Optimization

-5%

Potential reduce by 213.1 kB

Original 3.9 MB
After minification 3.7 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. Dancevillage images are well optimized though.

JavaScript Optimization

-55%

Potential reduce by 173.2 kB

Original 313.2 kB
After minification 293.5 kB
After compression 140.0 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 173.2 kB or 55% of the original size.

CSS Optimization

-86%

Potential reduce by 111.3 kB

Original 128.9 kB
After minification 96.8 kB
After compression 17.6 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. Dancevillage.jp needs all CSS files to be minified and compressed as it can save up to 111.3 kB or 86% of the original size.

Requests Now

158

After Optimization

107

The browser has sent 158 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dancevillage. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 29 to 1 for JavaScripts and from 9 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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

These items highlight common accessibility best practices.

High

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

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

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 Dancevillage.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 Dancevillage.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

dancevillage.jp

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