Tools & Wizards About Us
japanjenaplan.org screenshot

Report Summary

  • 25

    Performance

    Renders faster than
    44% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 60% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

japanjenaplan.org

日本イエナプラン教育協会

Page Load Speed

8.2 sec in total

First Response

535 ms

Resources Loaded

7.4 sec

Page Rendered

228 ms

japanjenaplan.org screenshot

About Website

Click here to check amazing Japanjenaplan content. Otherwise, check out these important facts you probably never knew about japanjenaplan.org

日本におけるイエナプラン教育の発展・普及のために、市民の自発的な教育活動を支援、促進し、イエナプラン教育の実践をもとに、情報交換や研究を深めていく場をつくることを目的とする団体です。

Visit japanjenaplan.org

Key Findings

We analyzed Japanjenaplan.org page load time and found that the first response time was 535 ms and then it took 7.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

japanjenaplan.org performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

18/100

10%

LCP (Largest Contentful Paint)

Value6.5 s

9/100

25%

SI (Speed Index)

Value10.9 s

6/100

10%

TBT (Total Blocking Time)

Value1,510 ms

14/100

30%

CLS (Cumulative Layout Shift)

Value0.005

100/100

15%

TTI (Time to Interactive)

Value14.3 s

9/100

10%

Network Requests Diagram

japanjenaplan.org

535 ms

import.css

185 ms

jquery.bxslider.css

344 ms

jquery-1.11.0.min.js

539 ms

jquery.bxslider.min.js

368 ms

Our browser made a total of 50 requests to load all elements on the main page. We found that 76% of them (38 requests) were addressed to the original Japanjenaplan.org, 12% (6 requests) were made to Google.com and 4% (2 requests) were made to S.ytimg.com. The less responsive or slowest element that took the longest time to load (3.7 sec) relates to the external source Google.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 462.0 kB (13%)

Content Size

3.6 MB

After Optimization

3.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Japanjenaplan.org main page is 3.6 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. 30% of websites need less resources to load. Images take 3.0 MB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 9.3 kB

  • Original 13.2 kB
  • After minification 13.0 kB
  • After compression 4.0 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 9.3 kB or 70% of the original size.

Image Optimization

-1%

Potential reduce by 31.9 kB

  • Original 3.0 MB
  • After minification 2.9 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. Japanjenaplan images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 207.2 kB

  • Original 314.4 kB
  • After minification 314.1 kB
  • After compression 107.2 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 207.2 kB or 66% of the original size.

CSS Optimization

-83%

Potential reduce by 213.6 kB

  • Original 258.0 kB
  • After minification 255.3 kB
  • After compression 44.4 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. Japanjenaplan.org needs all CSS files to be minified and compressed as it can save up to 213.6 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (49%)

Requests Now

47

After Optimization

24

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Japanjenaplan. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

japanjenaplan.org

japanjenaplan.org

535 ms

import.css

import.css

185 ms

jquery.bxslider.css

jquery.bxslider.css

344 ms

jquery-1.11.0.min.js

jquery-1.11.0.min.js

539 ms

jquery.bxslider.min.js

jquery.bxslider.min.js

368 ms

retina.min.js

retina.min.js

365 ms

jsapi

jsapi

18 ms

css.css

css.css

165 ms

menu.css

menu.css

326 ms

IyJVCJqWoS0

IyJVCJqWoS0

86 ms

bg.jpg

bg.jpg

851 ms

bg_header.jpg

bg_header.jpg

605 ms

logo.jpg

logo.jpg

213 ms

ml.jpg

ml.jpg

220 ms

nav-01.png

nav-01.png

223 ms

nav-02on.png

nav-02on.png

208 ms

nav-02.png

nav-02.png

389 ms

nav-03on.png

nav-03on.png

388 ms

nav-03.png

nav-03.png

396 ms

nav-04on.png

nav-04on.png

394 ms

nav-04.png

nav-04.png

555 ms

nav-05on.png

nav-05on.png

590 ms

nav-05.png

nav-05.png

562 ms

nav-06on.png

nav-06on.png

560 ms

nav-06.png

nav-06.png

721 ms

hd-slider.png

hd-slider.png

891 ms

slider1.png

slider1.png

1742 ms

slider2.png

slider2.png

2054 ms

slider3.png

slider3.png

2609 ms

slider4.png

slider4.png

2230 ms

slider5.png

slider5.png

1687 ms

bn-01.png

bn-01.png

1071 ms

bn-02.png

bn-02.png

1404 ms

hd-news.png

hd-news.png

1581 ms

bn-03.png

bn-03.png

1748 ms

bn-04.png

bn-04.png

1849 ms

bn-05.png

bn-05.png

1907 ms

bn-06.png

bn-06.png

1914 ms

15 ms

default+en.css

default+en.css

3 ms

default+en.I.js

default+en.I.js

6 ms

bx_loader.gif

bx_loader.gif

1959 ms

controls.png

controls.png

2013 ms

www-embed-player-vfl-z2BtK.css

www-embed-player-vfl-z2BtK.css

16 ms

www-embed-player.js

www-embed-player.js

30 ms

Lrq7Jibxdtv2QOPyDSqncpDfQFNs3PE6SoUrUNh2GTU.js

Lrq7Jibxdtv2QOPyDSqncpDfQFNs3PE6SoUrUNh2GTU.js

24 ms

ad_status.js

ad_status.js

26 ms

zN7GBFwfMP4uA6AR0HCoLQ.ttf

zN7GBFwfMP4uA6AR0HCoLQ.ttf

26 ms

RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf

RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf

29 ms

Gfeeds

Gfeeds

3710 ms

Accessibility Review

japanjenaplan.org accessibility score

85

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

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

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.

Best Practices

japanjenaplan.org best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

japanjenaplan.org SEO score

100

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

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 Japanjenaplan.org 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 Japanjenaplan.org 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

japanjenaplan.org

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