Tools & Wizards About Us
pianobooks.jp screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 72

    Accessibility

    Visual factors better than
    that of 37% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 81

    SEO

    Google-friendlier than
    43% of websites

pianobooks.jp

ピアノの本棚

Page Load Speed

5 sec in total

First Response

578 ms

Resources Loaded

4.2 sec

Page Rendered

244 ms

pianobooks.jp screenshot

About Website

Click here to check amazing Pianobooks content for Taiwan. Otherwise, check out these important facts you probably never knew about pianobooks.jp

ポップスのピアノ楽譜を無料で公開。YouTubeで模範演奏を聴くこともできます。譜面が読めなくてもピアノが弾ける！ピアノアプリ「シンセシア」を使った効率的なピアノ練習法。コメントで日頃の成果や練習への意気込みをみんなとシェアしよう。

Visit pianobooks.jp

Key Findings

We analyzed Pianobooks.jp page load time and found that the first response time was 578 ms and then it took 4.4 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

pianobooks.jp performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

14/100

10%

LCP (Largest Contentful Paint)

Value5.3 s

22/100

25%

SI (Speed Index)

Value9.7 s

11/100

10%

TBT (Total Blocking Time)

Value2,030 ms

7/100

30%

CLS (Cumulative Layout Shift)

Value0.322

36/100

15%

TTI (Time to Interactive)

Value18.7 s

3/100

10%

Network Requests Diagram

pianobooks.jp

578 ms

pianobooks.jp

715 ms

adsbygoogle.js

198 ms

reset.css

185 ms

basic.css

371 ms

Our browser made a total of 85 requests to load all elements on the main page. We found that 60% of them (51 requests) were addressed to the original Pianobooks.jp, 21% (18 requests) were made to Platform.twitter.com and 7% (6 requests) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Pianobooks.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 424.2 kB (34%)

Content Size

1.3 MB

After Optimization

832.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Pianobooks.jp main page is 1.3 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. 70% of websites need less resources to load. Images take 854.7 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 68.9 kB

  • Original 81.7 kB
  • After minification 58.5 kB
  • After compression 12.9 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. This page needs HTML code to be minified as it can gain 23.2 kB, which is 28% 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 68.9 kB or 84% of the original size.

Image Optimization

-41%

Potential reduce by 349.9 kB

  • Original 854.7 kB
  • After minification 504.9 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, Pianobooks needs image optimization as it can save up to 349.9 kB or 41% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 75 B

  • Original 312.6 kB
  • After minification 312.6 kB
  • After compression 312.5 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

-75%

Potential reduce by 5.4 kB

  • Original 7.2 kB
  • After minification 2.7 kB
  • After compression 1.8 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. Pianobooks.jp needs all CSS files to be minified and compressed as it can save up to 5.4 kB or 75% of the original size.

Requests Breakdown

Number of requests can be reduced by 26 (32%)

Requests Now

82

After Optimization

56

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 82 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Pianobooks. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

pianobooks.jp

pianobooks.jp

578 ms

pianobooks.jp

pianobooks.jp

715 ms

adsbygoogle.js

adsbygoogle.js

198 ms

reset.css

reset.css

185 ms

basic.css

basic.css

371 ms

common.css

common.css

554 ms

youtube_comment.css

youtube_comment.css

672 ms

index_detail.css

index_detail.css

729 ms

jquery-latest.js

jquery-latest.js

57 ms

jquery.min.js

jquery.min.js

52 ms

widgets.js

widgets.js

48 ms

show_ads_impl.js

show_ads_impl.js

244 ms

mqdefault.jpg

mqdefault.jpg

150 ms

header_bg_img.png

header_bg_img.png

215 ms

global_icon.svg

global_icon.svg

211 ms

logo_ja.png

logo_ja.png

215 ms

icon_search.png

icon_search.png

465 ms

top_panel.jpg

top_panel.jpg

601 ms

h_blue_normal.png

h_blue_normal.png

549 ms

18.gif

18.gif

365 ms

rank1.png

rank1.png

639 ms

127.jpg

127.jpg

552 ms

bt_to_score.png

bt_to_score.png

656 ms

rank2.png

rank2.png

726 ms

87.jpg

87.jpg

727 ms

rank3.png

rank3.png

1033 ms

120.jpg

120.jpg

793 ms

rank4.png

rank4.png

804 ms

5.jpg

5.jpg

823 ms

rank5.png

rank5.png

864 ms

88.jpg

88.jpg

882 ms

rank6.png

rank6.png

977 ms

89.jpg

89.jpg

1005 ms

rank7.png

rank7.png

1030 ms

107.jpg

107.jpg

1035 ms

rank8.png

rank8.png

1219 ms

108.jpg

108.jpg

1168 ms

rank9.png

rank9.png

1204 ms

121.jpg

121.jpg

1232 ms

rank10.png

rank10.png

1233 ms

42.jpg

42.jpg

1211 ms

bt_youtube_play.png

bt_youtube_play.png

1346 ms

gmdLhTDdGT4.jpg

gmdLhTDdGT4.jpg

1402 ms

Vy_NmZPbGro.jpg

Vy_NmZPbGro.jpg

1391 ms

wb5MLQyGJuE.jpg

wb5MLQyGJuE.jpg

1392 ms

dhYFnDNmMrk.jpg

dhYFnDNmMrk.jpg

1450 ms

7OSDoSyWyWs.jpg

7OSDoSyWyWs.jpg

1434 ms

banner_easy_300_100.gif

banner_easy_300_100.gif

1530 ms

banner_choir_300_100.gif

banner_choir_300_100.gif

1491 ms

zrt_lookup.html

zrt_lookup.html

89 ms

ads

ads

219 ms

ads

ads

345 ms

h_pink_normal.png

h_pink_normal.png

1359 ms

h_green_normal.png

h_green_normal.png

1400 ms

h_black_normal.png

h_black_normal.png

1396 ms

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

41 ms

ads

ads

413 ms

settings

settings

104 ms

ca-pub-5202799277734570

ca-pub-5202799277734570

97 ms

slotcar_library.js

slotcar_library.js

116 ms

get_song_info_by_JSON.php

get_song_info_by_JSON.php

1262 ms

timeline.e108540dddc96e4b707f5cf259a582d7.js

timeline.e108540dddc96e4b707f5cf259a582d7.js

10 ms

h2_me_playing.png

h2_me_playing.png

1245 ms

PianoBooksjp

PianoBooksjp

57 ms

ads

ads

341 ms

ads

ads

158 ms

li_triangle_nav.png

li_triangle_nav.png

1195 ms

polyfills-a40ef1678bae11e696dba45124eadd70.js

polyfills-a40ef1678bae11e696dba45124eadd70.js

3 ms

runtime-b1c52fd0a13ead5fcf6b.js

runtime-b1c52fd0a13ead5fcf6b.js

24 ms

modules-96ebc7ac3ad66d681a3d.js

modules-96ebc7ac3ad66d681a3d.js

31 ms

main-babd9234dc048fb47339.js

main-babd9234dc048fb47339.js

26 ms

_app-a9c9f1a99e4414675fb1.js

_app-a9c9f1a99e4414675fb1.js

26 ms

%5BscreenName%5D-0517bdda27d5006a5a2d.js

%5BscreenName%5D-0517bdda27d5006a5a2d.js

30 ms

_buildManifest.js

_buildManifest.js

30 ms

_ssgManifest.js

_ssgManifest.js

29 ms

8526.0c32a8f0cfc5749221a3.js

8526.0c32a8f0cfc5749221a3.js

15 ms

7651.a95a6a76dc7859214377.js

7651.a95a6a76dc7859214377.js

14 ms

8283.f3e5048cca7cef5eed7f.js

8283.f3e5048cca7cef5eed7f.js

4 ms

3077.44bfeb00af01bc4020f6.js

3077.44bfeb00af01bc4020f6.js

19 ms

1362.42d432e02f7980bca032.js

1362.42d432e02f7980bca032.js

9 ms

4956.c4e51ef593974b9db0bb.js

4956.c4e51ef593974b9db0bb.js

20 ms

5893.d500bd2a89ded806aa73.js

5893.d500bd2a89ded806aa73.js

19 ms

102.txt

102.txt

174 ms

score_thumbnail_gen.php

score_thumbnail_gen.php

272 ms

mqdefault.jpg

mqdefault.jpg

245 ms

Accessibility Review

pianobooks.jp accessibility score

72

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

High

Image elements do not have [alt] attributes

High

Links do not have a discernible 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

Heading elements are not in a sequentially-descending order

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

pianobooks.jp best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

pianobooks.jp SEO score

81

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

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

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 Pianobooks.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 Pianobooks.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

pianobooks.jp

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