Tools & Wizards About Us
dietacademy.jp screenshot

Report Summary

  • 37

    Performance

    Renders faster than
    56% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 96

    SEO

    Google-friendlier than
    90% of websites

dietacademy.jp

ダイエットマスター資格講座 I 公式サイト​

Page Load Speed

4.6 sec in total

First Response

861 ms

Resources Loaded

3.7 sec

Page Rendered

113 ms

dietacademy.jp screenshot

About Website

Visit dietacademy.jp now to see the best up-to-date Dietacademy content and also check out these interesting facts you probably never knew about dietacademy.jp

創業20周年、ダイエットに特化した資格講座の老舗。正しく健康的に痩せたい方も、ダイエットの専門知識をお仕事に活かしたい方にも大変お喜びいただいております。認定店制度有り。​

Visit dietacademy.jp

Key Findings

We analyzed Dietacademy.jp page load time and found that the first response time was 861 ms and then it took 3.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

dietacademy.jp performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

40/100

10%

LCP (Largest Contentful Paint)

Value4.2 s

45/100

25%

SI (Speed Index)

Value6.0 s

47/100

10%

TBT (Total Blocking Time)

Value2,160 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0.071

96/100

15%

TTI (Time to Interactive)

Value13.0 s

12/100

10%

Network Requests Diagram

dietacademy.jp

861 ms

default.css

438 ms

common.css

446 ms

home.css

478 ms

common.css

694 ms

Our browser made a total of 36 requests to load all elements on the main page. We found that 86% of them (31 requests) were addressed to the original Dietacademy.jp, 6% (2 requests) were made to Google-analytics.com and 3% (1 request) were made to Googleadservices.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Dietacademy.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 269.6 kB (51%)

Content Size

526.1 kB

After Optimization

256.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dietacademy.jp main page is 526.1 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 15% of websites need less resources to load. Javascripts take 236.0 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 10.6 kB

  • Original 14.5 kB
  • After minification 13.9 kB
  • After compression 3.9 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. 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 10.6 kB or 73% of the original size.

Image Optimization

-26%

Potential reduce by 52.8 kB

  • Original 206.7 kB
  • After minification 154.0 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, Dietacademy needs image optimization as it can save up to 52.8 kB or 26% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-62%

Potential reduce by 147.0 kB

  • Original 236.0 kB
  • After minification 224.4 kB
  • After compression 89.0 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 147.0 kB or 62% of the original size.

CSS Optimization

-86%

Potential reduce by 59.2 kB

  • Original 68.9 kB
  • After minification 52.4 kB
  • After compression 9.7 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. Dietacademy.jp needs all CSS files to be minified and compressed as it can save up to 59.2 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 16 (47%)

Requests Now

34

After Optimization

18

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dietacademy. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

dietacademy.jp

dietacademy.jp

861 ms

default.css

default.css

438 ms

common.css

common.css

446 ms

home.css

home.css

478 ms

common.css

common.css

694 ms

jquery.mmenu.all.css

jquery.mmenu.all.css

738 ms

common.js

common.js

725 ms

AC_RunActiveContent.js

AC_RunActiveContent.js

655 ms

jquery-1.8.3.min.js

jquery-1.8.3.min.js

1455 ms

jquery.mmenu.min.all.js

jquery.mmenu.min.all.js

1124 ms

conversion.js

conversion.js

18 ms

ga.js

ga.js

8 ms

__utm.gif

__utm.gif

12 ms

logo.gif

logo.gif

243 ms

tel.gif

tel.gif

221 ms

request.gif

request.gif

240 ms

contact.gif

contact.gif

222 ms

nav_bg.gif

nav_bg.gif

231 ms

home.gif

home.gif

230 ms

secret.gif

secret.gif

436 ms

t01.gif

t01.gif

439 ms

qualification.gif

qualification.gif

462 ms

kai.gif

kai.gif

466 ms

t03.gif

t03.gif

469 ms

pink_bg.gif

pink_bg.gif

475 ms

image.jpg

image.jpg

1547 ms

blue_bg.gif

blue_bg.gif

650 ms

dm_regular.jpg

dm_regular.jpg

1141 ms

dm_senior.jpg

dm_senior.jpg

1163 ms

dm_gold.jpg

dm_gold.jpg

1154 ms

dm_super.jpg

dm_super.jpg

718 ms

request.png

request.png

1291 ms

request_entry.png

request_entry.png

1420 ms

footer_bg.gif

footer_bg.gif

1366 ms

37 ms

28 ms

Accessibility Review

dietacademy.jp accessibility score

83

Accessibility Issues

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

dietacademy.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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

dietacademy.jp SEO score

96

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 uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dietacademy.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Dietacademy.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

dietacademy.jp

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