Tools & Wizards About Us
guitarschool.jp screenshot

Report Summary

  • 47

    Performance

    Renders faster than
    65% of other websites

  • 69

    Accessibility

    Visual factors better than
    that of 34% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

guitarschool.jp

ギター教室 ソウルアロー 東京 渋谷 秋葉原 池袋 新宿 横浜 大阪

Page Load Speed

5.6 sec in total

First Response

549 ms

Resources Loaded

4.3 sec

Page Rendered

700 ms

guitarschool.jp screenshot

About Website

Click here to check amazing Guitarschool content for Japan. Otherwise, check out these important facts you probably never knew about guitarschool.jp

ギター教室がリーズナブルな料金で！ソウルアロー株式会社が運営するギター教室は、東京は渋谷や新宿や池袋をはじめ、大阪から名古屋、横浜から埼玉や千葉、さらに京都や仙台、札幌、福岡へと全国に展開。初心者から上級者まで個々に合わせたギターレッスンです。

Visit guitarschool.jp

Key Findings

We analyzed Guitarschool.jp page load time and found that the first response time was 549 ms and then it took 5 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

guitarschool.jp performance score

47

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

41/100

10%

LCP (Largest Contentful Paint)

Value8.8 s

1/100

25%

SI (Speed Index)

Value6.5 s

39/100

10%

TBT (Total Blocking Time)

Value200 ms

89/100

30%

CLS (Cumulative Layout Shift)

Value0.283

43/100

15%

TTI (Time to Interactive)

Value6.8 s

55/100

10%

Network Requests Diagram

guitarschool.jp

549 ms

www.guitarschool.jp

521 ms

common.css

167 ms

swfobject.js

328 ms

jquery-2.0.2.min.js

496 ms

Our browser made a total of 38 requests to load all elements on the main page. We found that 29% of them (11 requests) were addressed to the original Guitarschool.jp, 55% (21 requests) were made to Soularrow.info and 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2.6 sec) relates to the external source Soularrow.info.

Page Optimization Overview & Recommendations

Page size can be reduced by 265.8 kB (11%)

Content Size

2.4 MB

After Optimization

2.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Guitarschool.jp main page is 2.4 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. 35% of websites need less resources to load. Images take 2.2 MB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 17.4 kB

  • Original 23.5 kB
  • After minification 21.3 kB
  • After compression 6.1 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. 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 17.4 kB or 74% of the original size.

Image Optimization

-9%

Potential reduce by 209.8 kB

  • Original 2.2 MB
  • After minification 2.0 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. Guitarschool images are well optimized though.

JavaScript Optimization

-31%

Potential reduce by 36.8 kB

  • Original 120.2 kB
  • After minification 120.2 kB
  • After compression 83.4 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 36.8 kB or 31% of the original size.

CSS Optimization

-27%

Potential reduce by 1.8 kB

  • Original 6.8 kB
  • After minification 6.8 kB
  • After compression 5.0 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. Guitarschool.jp needs all CSS files to be minified and compressed as it can save up to 1.8 kB or 27% of the original size.

Requests Breakdown

Number of requests can be reduced by 6 (17%)

Requests Now

35

After Optimization

29

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Guitarschool. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

guitarschool.jp

guitarschool.jp

549 ms

www.guitarschool.jp

www.guitarschool.jp

521 ms

common.css

common.css

167 ms

swfobject.js

swfobject.js

328 ms

jquery-2.0.2.min.js

jquery-2.0.2.min.js

496 ms

jquery.flexslider-min.js

jquery.flexslider-min.js

330 ms

flexslider.css

flexslider.css

331 ms

conversion.js

conversion.js

72 ms

analytics.js

analytics.js

76 ms

back.jpg

back.jpg

1500 ms

title_logo.png

title_logo.png

1206 ms

campaign2.png

campaign2.png

1045 ms

toiawase.png

toiawase.png

1216 ms

SAM_Lesson.jpg

SAM_Lesson.jpg

1727 ms

credit.png

credit.png

1219 ms

media.png

media.png

1723 ms

nohontv.png

nohontv.png

1374 ms

sekaiichi_logo.jpg

sekaiichi_logo.jpg

1385 ms

tvtion.png

tvtion.png

1388 ms

fuji110730.gif

fuji110730.gif

1543 ms

tvtokyo.gif

tvtokyo.gif

1554 ms

idc_sonymagazines.gif

idc_sonymagazines.gif

1558 ms

online_banner_3.png

online_banner_3.png

1659 ms

distance.png

distance.png

1711 ms

speedmaster.png

speedmaster.png

2059 ms

impressions.png

impressions.png

2236 ms

youtube_kumadasan.jpg

youtube_kumadasan.jpg

1823 ms

lesson_jisseki.png

lesson_jisseki.png

2556 ms

sam_banner_01.png

sam_banner_01.png

1891 ms

title_logo_alfa.png

title_logo_alfa.png

1894 ms

present_big_banner.png

present_big_banner.png

656 ms

muryou.png

muryou.png

553 ms

map.png

map.png

491 ms

38 ms

collect

collect

29 ms

28 ms

js

js

68 ms

flexslider-icon.woff

flexslider-icon.woff

165 ms

Accessibility Review

guitarschool.jp accessibility score

69

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-hidden="true"] elements contain focusable descendents

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

guitarschool.jp best practices score

67

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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

guitarschool.jp SEO score

69

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

Links do not have descriptive text

High

Image elements do not have [alt] attributes

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

High

robots.txt is not valid

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 Guitarschool.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 Guitarschool.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

guitarschool.jp

Open Graph description is not detected on the main page of Guitarschool. 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: