Report Summary

  • 24

    Performance

    Renders faster than
    43% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 77% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

jrda-dance.com

JRDA 一般社団法人日本ラウンドダンス協会

Page Load Speed

9.6 sec in total

First Response

2.2 sec

Resources Loaded

6.2 sec

Page Rendered

1.2 sec

jrda-dance.com screenshot

About Website

Visit jrda-dance.com now to see the best up-to-date JRDA Dance content and also check out these interesting facts you probably never knew about jrda-dance.com

Visit jrda-dance.com

Key Findings

We analyzed Jrda-dance.com page load time and found that the first response time was 2.2 sec and then it took 7.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

jrda-dance.com performance score

24

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

8/100

10%

LCP (Largest Contentful Paint)

Value10.6 s

0/100

25%

SI (Speed Index)

Value10.6 s

7/100

10%

TBT (Total Blocking Time)

Value1,320 ms

17/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value11.2 s

20/100

10%

Network Requests Diagram

www.jrda-dance.com

2191 ms

style.min.css

174 ms

style.min.css

346 ms

style.min.css

500 ms

swiper.css

502 ms

Our browser made a total of 53 requests to load all elements on the main page. We found that 94% of them (50 requests) were addressed to the original Jrda-dance.com, 2% (1 request) were made to Google.com and 2% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (2.2 sec) belongs to the original domain Jrda-dance.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 219.7 kB (19%)

Content Size

1.1 MB

After Optimization

907.0 kB

In fact, the total size of Jrda-dance.com main page is 1.1 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. 50% of websites need less resources to load. Images take 610.6 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 96.9 kB

  • Original 116.8 kB
  • After minification 116.3 kB
  • After compression 19.8 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 96.9 kB or 83% of the original size.

Image Optimization

-19%

Potential reduce by 119.0 kB

  • Original 610.6 kB
  • After minification 491.6 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. Obviously, JRDA Dance needs image optimization as it can save up to 119.0 kB or 19% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-1%

Potential reduce by 2.3 kB

  • Original 343.6 kB
  • After minification 343.6 kB
  • After compression 341.3 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. This website has mostly compressed JavaScripts.

CSS Optimization

-3%

Potential reduce by 1.5 kB

  • Original 55.7 kB
  • After minification 55.7 kB
  • After compression 54.2 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. Jrda-dance.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 40 (78%)

Requests Now

51

After Optimization

11

The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of JRDA Dance. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 22 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

jrda-dance.com accessibility score

91

Accessibility Issues

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

jrda-dance.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

jrda-dance.com SEO score

86

Search Engine Optimization Advices

Content Best Practices

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

Impact

Issue

High

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

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 Jrda-dance.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 Jrda-dance.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 description is not detected on the main page of JRDA Dance. 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: