Tools & Wizards About Us

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

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

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

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: