Tools & Wizards About Us
jean.jp screenshot

Report Summary

  • 28

    Performance

    Renders faster than
    48% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

jean.jp

一般社団法人　JEAN - 美しい海をこどもたちへ

Page Load Speed

9.2 sec in total

First Response

517 ms

Resources Loaded

8.3 sec

Page Rendered

373 ms

jean.jp screenshot

About Website

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

「美しい海をこどもたちへ」〜JEANは、散乱ごみの調査やクリーンアップを通じて海や川の環境保全を行っている非営利の環境NGOです。

Visit jean.jp

Key Findings

We analyzed Jean.jp page load time and found that the first response time was 517 ms and then it took 8.7 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

jean.jp performance score

28

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

12/100

10%

LCP (Largest Contentful Paint)

Value9.0 s

1/100

25%

SI (Speed Index)

Value10.8 s

6/100

10%

TBT (Total Blocking Time)

Value890 ms

32/100

30%

CLS (Cumulative Layout Shift)

Value0.022

100/100

15%

TTI (Time to Interactive)

Value12.4 s

15/100

10%

Network Requests Diagram

jean.jp

517 ms

www.jean.jp

1200 ms

import.css

502 ms

detail.css

509 ms

import.js

511 ms

Our browser made a total of 63 requests to load all elements on the main page. We found that 92% of them (58 requests) were addressed to the original Jean.jp, 3% (2 requests) were made to Connect.facebook.net and 2% (1 request) were made to Google.com. The less responsive or slowest element that took the longest time to load (3.9 sec) belongs to the original domain Jean.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 132.5 kB (14%)

Content Size

942.7 kB

After Optimization

810.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jean.jp main page is 942.7 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. 35% of websites need less resources to load. Images take 767.5 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 38.2 kB

  • Original 53.6 kB
  • After minification 52.4 kB
  • After compression 15.5 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 38.2 kB or 71% of the original size.

Image Optimization

-2%

Potential reduce by 15.8 kB

  • Original 767.5 kB
  • After minification 751.7 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. JEAN images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 67.4 kB

  • Original 107.4 kB
  • After minification 102.8 kB
  • After compression 40.0 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 67.4 kB or 63% of the original size.

CSS Optimization

-79%

Potential reduce by 11.2 kB

  • Original 14.1 kB
  • After minification 8.7 kB
  • After compression 2.9 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. Jean.jp needs all CSS files to be minified and compressed as it can save up to 11.2 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 35 (60%)

Requests Now

58

After Optimization

23

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 58 CSS, Javascripts, AJAX and image requests in order to completely render the main page of JEAN. 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 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

jean.jp

jean.jp

517 ms

www.jean.jp

www.jean.jp

1200 ms

import.css

import.css

502 ms

detail.css

detail.css

509 ms

import.js

import.js

511 ms

brand

brand

19 ms

feed.js

feed.js

525 ms

brandjs.js

brandjs.js

17 ms

reset.css

reset.css

171 ms

template.css

template.css

509 ms

class.css

class.css

510 ms

jquery.js

jquery.js

778 ms

jquery.cookie.js

jquery.cookie.js

208 ms

rollover.js

rollover.js

179 ms

navi.js

navi.js

503 ms

fontChange.js

fontChange.js

519 ms

sdk.js

sdk.js

101 ms

bg_wrapper.gif

bg_wrapper.gif

174 ms

bg_header.gif

bg_header.gif

178 ms

logo_jean.gif

logo_jean.gif

505 ms

bg_search.gif

bg_search.gif

507 ms

btn_search.gif

btn_search.gif

511 ms

txt_font.gif

txt_font.gif

508 ms

btn_fontS.gif

btn_fontS.gif

668 ms

btn_fontM.gif

btn_fontM.gif

685 ms

btn_fontL.gif

btn_fontL.gif

995 ms

navi_english.gif

navi_english.gif

1008 ms

navi_contact.gif

navi_contact.gif

1020 ms

DSC_5823.jpg

DSC_5823.jpg

2618 ms

navi_m-litter_off.gif

navi_m-litter_off.gif

1168 ms

navi_activity_off.gif

navi_activity_off.gif

1194 ms

navi_about-jean_off.gif

navi_about-jean_off.gif

1498 ms

navi_material_off.gif

navi_material_off.gif

1507 ms

navi_support_off.gif

navi_support_off.gif

1537 ms

tit_topics.gif

tit_topics.gif

1676 ms

Jean2018shortR.jpg

Jean2018shortR.jpg

2400 ms

microplastic.jpg

microplastic.jpg

2356 ms

PC200001_news.jpg

PC200001_news.jpg

2520 ms

2017report_s.jpg

2017report_s.jpg

2385 ms

icon_square01.gif

icon_square01.gif

2175 ms

20131005BCWAs.jpg

20131005BCWAs.jpg

3054 ms

tit_icc.gif

tit_icc.gif

3032 ms

img_map.gif

img_map.gif

2893 ms

icon_arrow01.gif

icon_arrow01.gif

2923 ms

tit_blog.gif

tit_blog.gif

3037 ms

tit_facebook.gif

tit_facebook.gif

3039 ms

tit_supp.gif

tit_supp.gif

3312 ms

navi_f_link.gif

navi_f_link.gif

3365 ms

navi_f_use.gif

navi_f_use.gif

3472 ms

navi_f_privacy.gif

navi_f_privacy.gif

3476 ms

navi_f_contact.gif

navi_f_contact.gif

3475 ms

navi_f_sitemap.gif

navi_f_sitemap.gif

3559 ms

navi_f_legal.gif

navi_f_legal.gif

3817 ms

sdk.js

sdk.js

12 ms

50 ms

txt_copyright.gif

txt_copyright.gif

3817 ms

icon_arrow04.gif

icon_arrow04.gif

3901 ms

icon_arrow02.gif

icon_arrow02.gif

3588 ms

bg_footer.gif

bg_footer.gif

3586 ms

btn_fontM_on.gif

btn_fontM_on.gif

3653 ms

btn_fontM_on_on.gif

btn_fontM_on_on.gif

3906 ms

error.html

error.html

334 ms

error.html

error.html

175 ms

Accessibility Review

jean.jp accessibility score

88

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.

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

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

jean.jp best practices score

50

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

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

jean.jp SEO score

71

Search Engine Optimization Advices

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 Jean.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 Jean.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

jean.jp

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