Tools & Wizards About Us
coconut.co.jp screenshot

Report Summary

  • 28

    Performance

    Renders faster than
    48% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 89% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

coconut.co.jp

ダイビングライセンススクールココナッツ

Page Load Speed

6.3 sec in total

First Response

880 ms

Resources Loaded

5 sec

Page Rendered

393 ms

coconut.co.jp screenshot

About Website

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

面白マジメなPADIダイビングライセンス取得スクール1987年の創業以来、安全記録と25年連続の表彰歴。スキューバダイビング初心者からインストラクター養成まで4万人を超える方に認定証を発行。東京・横浜店・千葉・沖縄に店舗を持ち年間1000本以上のツアーを開催。大切な人を任せても安心の店を目指しております

Visit coconut.co.jp

Key Findings

We analyzed Coconut.co.jp page load time and found that the first response time was 880 ms and then it took 5.4 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

coconut.co.jp performance score

28

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value48.6 s

0/100

25%

SI (Speed Index)

Value9.8 s

10/100

10%

TBT (Total Blocking Time)

Value450 ms

63/100

30%

CLS (Cumulative Layout Shift)

Value0.292

41/100

15%

TTI (Time to Interactive)

Value14.4 s

9/100

10%

Network Requests Diagram

coconut.co.jp

880 ms

common.css

362 ms

menu_04.css

361 ms

CpAcn1n_cSk

92 ms

header_logo.png

520 ms

Our browser made a total of 61 requests to load all elements on the main page. We found that 75% of them (46 requests) were addressed to the original Coconut.co.jp, 5% (3 requests) were made to S.ytimg.com and 3% (2 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (3.8 sec) belongs to the original domain Coconut.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 486.2 kB (21%)

Content Size

2.4 MB

After Optimization

1.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Coconut.co.jp main page is 2.4 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. 60% of websites need less resources to load. Images take 1.7 MB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 19.4 kB

  • Original 26.7 kB
  • After minification 26.1 kB
  • After compression 7.3 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 19.4 kB or 73% of the original size.

Image Optimization

-1%

Potential reduce by 12.6 kB

  • Original 1.7 MB
  • After minification 1.7 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. Coconut images are well optimized though.

JavaScript Optimization

-60%

Potential reduce by 180.4 kB

  • Original 300.1 kB
  • After minification 298.8 kB
  • After compression 119.7 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 180.4 kB or 60% of the original size.

CSS Optimization

-84%

Potential reduce by 273.7 kB

  • Original 325.2 kB
  • After minification 292.9 kB
  • After compression 51.5 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. Coconut.co.jp needs all CSS files to be minified and compressed as it can save up to 273.7 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (31%)

Requests Now

55

After Optimization

38

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 55 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Coconut. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

coconut.co.jp

coconut.co.jp

880 ms

common.css

common.css

362 ms

menu_04.css

menu_04.css

361 ms

CpAcn1n_cSk

CpAcn1n_cSk

92 ms

header_logo.png

header_logo.png

520 ms

padi_logo_100.png

padi_logo_100.png

434 ms

req_btn_100.png

req_btn_100.png

435 ms

main_image_01.png

main_image_01.png

1217 ms

main_image_02.png

main_image_02.png

1648 ms

main_image_03.png

main_image_03.png

1464 ms

main_image_04.png

main_image_04.png

1712 ms

main_image_05.png

main_image_05.png

1465 ms

main_image_06.png

main_image_06.png

1627 ms

ow_small20160220.gif

ow_small20160220.gif

1947 ms

online_banayellow.jpg

online_banayellow.jpg

2333 ms

teikepuru.gif

teikepuru.gif

1985 ms

bnr_exp_220.png

bnr_exp_220.png

1996 ms

bnr_aow_220.png

bnr_aow_220.png

2180 ms

bluebnr_maigo_220.png

bluebnr_maigo_220.png

2080 ms

bana_pro_bk220.png

bana_pro_bk220.png

2317 ms

bnr_recruit_220.png

bnr_recruit_220.png

2489 ms

e_img1.jpg

e_img1.jpg

2517 ms

2011-6.jpg

2011-6.jpg

3260 ms

top_tour_img_03-1.png

top_tour_img_03-1.png

2876 ms

www-embed-player-vfl8xM8me.css

www-embed-player-vfl8xM8me.css

20 ms

www-embed-player.js

www-embed-player.js

42 ms

base.js

base.js

66 ms

fBnyGA8Aionz5086-mElmoOSPUuyQ1M9Un647_EjucU.js

fBnyGA8Aionz5086-mElmoOSPUuyQ1M9Un647_EjucU.js

56 ms

ad_status.js

ad_status.js

61 ms

jquery.min.js

jquery.min.js

89 ms

main_menu.js

main_menu.js

2417 ms

jquery.simplyscroll.min.js

jquery.simplyscroll.min.js

2417 ms

jquery.simplyscroll.css

jquery.simplyscroll.css

2575 ms

acctag.js

acctag.js

2603 ms

conversion.js

conversion.js

48 ms

header_01.css

header_01.css

2751 ms

design_var.4.0.1.css

design_var.4.0.1.css

3026 ms

footer.css

footer.css

2932 ms

main_image.css

main_image.css

2938 ms

main_image.js

main_image.js

2983 ms

jquery.kwicks.min.js

jquery.kwicks.min.js

3110 ms

top_tour_img_03-2.png

top_tour_img_03-2.png

3804 ms

Tax%20free%20TATE.JPG

Tax%20free%20TATE.JPG

3496 ms

bnr_req_640.png

bnr_req_640.png

3520 ms

2UX7WLTfW3W8TclTUvlFyQ.woff

2UX7WLTfW3W8TclTUvlFyQ.woff

33 ms

RxZJdnzeo3R5zSexge8UUT8E0i7KZn-EPnyo3HZu7kw.woff

RxZJdnzeo3R5zSexge8UUT8E0i7KZn-EPnyo3HZu7kw.woff

35 ms

shop_icon_honten.png

shop_icon_honten.png

3334 ms

shop_icon_yokohama.png

shop_icon_yokohama.png

3289 ms

shop_icon_tsudanuma.png

shop_icon_tsudanuma.png

3314 ms

shop_icon_makuhari.png

shop_icon_makuhari.png

3553 ms

shop_icon_cebu.png

shop_icon_cebu.png

3580 ms

shop_icon_okinawa.png

shop_icon_okinawa.png

3780 ms

shop_icon_ishigaki.png

shop_icon_ishigaki.png

3086 ms

shop_icon_futo.png

shop_icon_futo.png

2833 ms

acclog.cgi

acclog.cgi

1581 ms

404.html

404.html

795 ms

analytics.js

analytics.js

23 ms

74 ms

collect

collect

24 ms

23 ms

collect

collect

51 ms

Accessibility Review

coconut.co.jp accessibility score

96

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

Links do not have a discernible name

Best Practices

coconut.co.jp best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

coconut.co.jp SEO score

90

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

    N/A

  • Language Claimed

    JA

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Coconut.co.jp can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is Japanese. Our system also found out that Coconut.co.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

coconut.co.jp

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