Tools & Wizards About Us
sax-lesson.com screenshot

Report Summary

  • 41

    Performance

    Renders faster than
    60% of other websites

  • 65

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

sax-lesson.com

サックスを始めよう

Page Load Speed

6.9 sec in total

First Response

1.3 sec

Resources Loaded

5.1 sec

Page Rendered

479 ms

sax-lesson.com screenshot

About Website

Click here to check amazing Sax Lesson content for Japan. Otherwise, check out these important facts you probably never knew about sax-lesson.com

サックスの吹き方、サックスの修理、調整、サックスブログ

Visit sax-lesson.com

Key Findings

We analyzed Sax-lesson.com page load time and found that the first response time was 1.3 sec and then it took 5.5 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

sax-lesson.com performance score

41

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

54/100

10%

LCP (Largest Contentful Paint)

Value7.7 s

3/100

25%

SI (Speed Index)

Value6.4 s

41/100

10%

TBT (Total Blocking Time)

Value500 ms

58/100

30%

CLS (Cumulative Layout Shift)

Value0.178

68/100

15%

TTI (Time to Interactive)

Value9.6 s

29/100

10%

Network Requests Diagram

sax-lesson.com

1307 ms

reset.css

331 ms

colorbox.css

332 ms

flexslider.css

343 ms

style.css

346 ms

Our browser made a total of 71 requests to load all elements on the main page. We found that 58% of them (41 requests) were addressed to the original Sax-lesson.com, 14% (10 requests) were made to Thumbnail.image.rakuten.co.jp and 11% (8 requests) were made to Apis.google.com. The less responsive or slowest element that took the longest time to load (2.4 sec) belongs to the original domain Sax-lesson.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 197.4 kB (18%)

Content Size

1.1 MB

After Optimization

871.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sax-lesson.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. 55% of websites need less resources to load. Images take 838.0 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 38.8 kB

  • Original 48.9 kB
  • After minification 45.4 kB
  • After compression 10.1 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 38.8 kB or 79% of the original size.

Image Optimization

-4%

Potential reduce by 30.4 kB

  • Original 838.0 kB
  • After minification 807.6 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. Sax Lesson images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 99.4 kB

  • Original 146.7 kB
  • After minification 132.6 kB
  • After compression 47.3 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 99.4 kB or 68% of the original size.

CSS Optimization

-81%

Potential reduce by 28.7 kB

  • Original 35.5 kB
  • After minification 23.1 kB
  • After compression 6.8 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. Sax-lesson.com needs all CSS files to be minified and compressed as it can save up to 28.7 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 24 (36%)

Requests Now

66

After Optimization

42

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 66 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sax Lesson. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

sax-lesson.com

sax-lesson.com

1307 ms

reset.css

reset.css

331 ms

colorbox.css

colorbox.css

332 ms

flexslider.css

flexslider.css

343 ms

style.css

style.css

346 ms

module.css

module.css

359 ms

jquery.js

jquery.js

945 ms

jquery.colorbox.js

jquery.colorbox.js

644 ms

common.js

common.js

657 ms

default.js

default.js

677 ms

jquery.flexslider.js

jquery.flexslider.js

838 ms

dave.js

dave.js

690 ms

script.js

script.js

978 ms

platform.js

platform.js

60 ms

count.js

count.js

876 ms

today.js

today.js

917 ms

yesterday.js

yesterday.js

916 ms

all.js

all.js

52 ms

back.jpg

back.jpg

621 ms

head3.jpg

head3.jpg

934 ms

mback2.jpg

mback2.jpg

401 ms

bgckt.jpg

bgckt.jpg

404 ms

925.JPG

925.JPG

717 ms

924.JPG

924.JPG

930 ms

884.JPG

884.JPG

1349 ms

840.JPG

840.JPG

1379 ms

32.jpg

32.jpg

1419 ms

line.gif

line.gif

1111 ms

youtubeplay.jpg

youtubeplay.jpg

1254 ms

auxstar.jpg

auxstar.jpg

1610 ms

32.jpg

32.jpg

1575 ms

saxp.jpg

saxp.jpg

1878 ms

newlist.jpg

newlist.jpg

1680 ms

20160124111606.JPG

20160124111606.JPG

2376 ms

20160201215006.JPG

20160201215006.JPG

2283 ms

newsb.jpg

newsb.jpg

2075 ms

annai1.jpg

annai1.jpg

2114 ms

widgets.js

widgets.js

42 ms

bo1.jpg

bo1.jpg

1930 ms

175 ms

acc.cgi

acc.cgi

2131 ms

analyze.cgi

analyze.cgi

2239 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

62 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

52 ms

sharebutton

sharebutton

112 ms

xd_arbiter.php

xd_arbiter.php

81 ms

xd_arbiter.php

xd_arbiter.php

163 ms

ping

ping

201 ms

postmessageRelay

postmessageRelay

160 ms

gplus-dd4b38-14.png

gplus-dd4b38-14.png

121 ms

rs=AGLTcCPeW_yxohM6d2vzOu9_v18SNdO9Aw

rs=AGLTcCPeW_yxohM6d2vzOu9_v18SNdO9Aw

34 ms

rs=AGLTcCPL11jm9UHlPv96c-QOB-li2dpwRQ

rs=AGLTcCPL11jm9UHlPv96c-QOB-li2dpwRQ

74 ms

like.php

like.php

124 ms

wy1X4hBW7e7.js

wy1X4hBW7e7.js

25 ms

LVx-xkvaJ0b.png

LVx-xkvaJ0b.png

11 ms

3193398744-postmessagerelay.js

3193398744-postmessagerelay.js

4 ms

rpc:shindig_random.js

rpc:shindig_random.js

57 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

3 ms

es300.jpg

es300.jpg

240 ms

08-5511241001.jpg

08-5511241001.jpg

225 ms

img55537421.jpg

img55537421.jpg

226 ms

9784873122380.jpg

9784873122380.jpg

519 ms

32748.jpg

32748.jpg

193 ms

v21alto_1.jpg

v21alto_1.jpg

211 ms

03-5010012100schset_.jpg

03-5010012100schset_.jpg

528 ms

nuvostudentflute.jpg

nuvostudentflute.jpg

220 ms

05-461082500.jpg

05-461082500.jpg

203 ms

img55537346.jpg

img55537346.jpg

196 ms

bg_control_nav.png

bg_control_nav.png

175 ms

line.gif

line.gif

204 ms

image-shadow.jpg

image-shadow.jpg

393 ms

Accessibility Review

sax-lesson.com accessibility score

65

Accessibility Issues

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

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

Best Practices

sax-lesson.com best practices score

83

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

SEO Factors

sax-lesson.com SEO score

79

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

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 Sax-lesson.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 Sax-lesson.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

sax-lesson.com

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