Tools & Wizards About Us

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

recochoku.jp

音楽ダウンロード・ランキング・歌詞・音楽配信サイト | レコチョク

Page Load Speed

4.9 sec in total

First Response

369 ms

Resources Loaded

4.2 sec

Page Rendered

274 ms

About Website

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

レコチョクは、音楽ダウンロード・ランキング・歌詞を楽しめる音楽配信サイト・音楽アプリです。邦楽/J-POP・洋楽・ドラマ主題歌・アニソンなど最新曲・流行曲・ヒット曲を配信中！（iPhone/Android対応の音楽アプリ）1曲から購入可能で、 無料で人気曲の歌詞や音楽試聴も可能です。

Visit recochoku.jp

Key Findings

We analyzed Recochoku.jp page load time and found that the first response time was 369 ms and then it took 4.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

recochoku.jp performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.0 s

10/100

10%

LCP (Largest Contentful Paint)

Value25.1 s

0/100

25%

SI (Speed Index)

Value8.7 s

16/100

10%

TBT (Total Blocking Time)

Value810 ms

36/100

30%

CLS (Cumulative Layout Shift)

Value0.434

21/100

15%

TTI (Time to Interactive)

Value15.3 s

7/100

10%

Network Requests Diagram

recochoku.jp

369 ms

recochoku.jp

1247 ms

reset.css

167 ms

css

31 ms

css

48 ms

Our browser made a total of 50 requests to load all elements on the main page. We found that 26% of them (13 requests) were addressed to the original Recochoku.jp, 26% (13 requests) were made to Resource.lap.recochoku.jp and 12% (6 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.7 sec) relates to the external source Resource.lap.recochoku.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 294.4 kB (16%)

Content Size

1.8 MB

After Optimization

1.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Recochoku.jp main page is 1.8 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 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 166.8 kB

  • Original 201.0 kB
  • After minification 180.9 kB
  • After compression 34.2 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 166.8 kB or 83% of the original size.

Image Optimization

-3%

Potential reduce by 40.0 kB

  • Original 1.3 MB
  • After minification 1.3 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. Recochoku images are well optimized though.

JavaScript Optimization

-26%

Potential reduce by 55.3 kB

  • Original 215.0 kB
  • After minification 215.0 kB
  • After compression 159.7 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 55.3 kB or 26% of the original size.

CSS Optimization

-40%

Potential reduce by 32.3 kB

  • Original 81.5 kB
  • After minification 81.5 kB
  • After compression 49.1 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. Recochoku.jp needs all CSS files to be minified and compressed as it can save up to 32.3 kB or 40% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (44%)

Requests Now

41

After Optimization

23

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 41 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Recochoku. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

recochoku.jp accessibility score

78

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

Buttons do not have an accessible name

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

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>).

High

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

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

recochoku.jp 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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

recochoku.jp SEO score

90

Search Engine Optimization Advices

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 doesn't use 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 Recochoku.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 Recochoku.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

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