Tools & Wizards About Us
dunlopsports.co.jp screenshot

Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 48% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

dunlopsports.co.jp

スポーツライフをもっと豊かに。| ダンロップ スポーツ【DUNLOP SPORTS】公式

Page Load Speed

9.5 sec in total

First Response

618 ms

Resources Loaded

8.8 sec

Page Rendered

128 ms

dunlopsports.co.jp screenshot

About Website

Welcome to dunlopsports.co.jp homepage info - get ready to check DUNLOP SPORTS best content for Japan right away, or after learning these important things about dunlopsports.co.jp

住友ゴム工業株式会社　スポーツ事業のポータルサイトです。ゴルフ用品（ダンロップ DUNLOP、スリクソンSRIXON、クリーブランドCleveland）・テニス用品（ダンロップ DUNLOP）の製造販売、フィットネスクラブおよびゴルフ・テニススクールの運営を行っています。

Visit dunlopsports.co.jp

Key Findings

We analyzed Dunlopsports.co.jp page load time and found that the first response time was 618 ms and then it took 8.9 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

dunlopsports.co.jp performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value23.3 s

0/100

25%

SI (Speed Index)

Value12.8 s

3/100

10%

TBT (Total Blocking Time)

Value570 ms

52/100

30%

CLS (Cumulative Layout Shift)

Value0.671

8/100

15%

TTI (Time to Interactive)

Value16.6 s

5/100

10%

Network Requests Diagram

dunlopsports.co.jp

618 ms

www.dunlopsports.co.jp

2308 ms

include.css

390 ms

home.css

406 ms

global.js

407 ms

Our browser made a total of 93 requests to load all elements on the main page. We found that 89% of them (83 requests) were addressed to the original Dunlopsports.co.jp, 6% (6 requests) were made to Google.com and 2% (2 requests) were made to Cse.google.com. The less responsive or slowest element that took the longest time to load (2.5 sec) belongs to the original domain Dunlopsports.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 83.0 kB (34%)

Content Size

242.2 kB

After Optimization

159.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dunlopsports.co.jp main page is 242.2 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. 40% of websites need less resources to load. Javascripts take 131.5 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 14.6 kB

  • Original 20.5 kB
  • After minification 19.7 kB
  • After compression 5.9 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 14.6 kB or 71% of the original size.

Image Optimization

-1%

Potential reduce by 577 B

  • Original 62.2 kB
  • After minification 61.6 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. DUNLOP SPORTS images are well optimized though.

JavaScript Optimization

-34%

Potential reduce by 45.1 kB

  • Original 131.5 kB
  • After minification 127.7 kB
  • After compression 86.5 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 45.1 kB or 34% of the original size.

CSS Optimization

-82%

Potential reduce by 22.8 kB

  • Original 27.9 kB
  • After minification 21.3 kB
  • After compression 5.1 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. Dunlopsports.co.jp needs all CSS files to be minified and compressed as it can save up to 22.8 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 60 (67%)

Requests Now

89

After Optimization

29

  • Images
  • JavaScript
  • CSS

The browser has sent 89 CSS, Javascripts, AJAX and image requests in order to completely render the main page of DUNLOP SPORTS. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

dunlopsports.co.jp

dunlopsports.co.jp

618 ms

www.dunlopsports.co.jp

www.dunlopsports.co.jp

2308 ms

include.css

include.css

390 ms

home.css

home.css

406 ms

global.js

global.js

407 ms

jquery.js

jquery.js

1021 ms

jquery.cookie.js

jquery.cookie.js

406 ms

jsapi

jsapi

21 ms

default.css

default.css

36 ms

default.css

default.css

26 ms

in_parts.css

in_parts.css

209 ms

in_global.css

in_global.css

389 ms

search.css

search.css

404 ms

ga.js

ga.js

21 ms

bd_bg.png

bd_bg.png

202 ms

hd_bg.png

hd_bg.png

203 ms

hd_logo_new_s.gif

hd_logo_new_s.gif

391 ms

hd_group.gif

hd_group.gif

408 ms

hd_search.gif

hd_search.gif

407 ms

hd_b01.gif

hd_b01.gif

410 ms

hd_b02.gif

hd_b02.gif

607 ms

hd_b03.gif

hd_b03.gif

607 ms

hd_b04.gif

hd_b04.gif

804 ms

hd_b05.gif

hd_b05.gif

797 ms

hd_m01.gif

hd_m01.gif

810 ms

hd_m02.gif

hd_m02.gif

815 ms

hd_m03.gif

hd_m03.gif

994 ms

hd_m04.gif

hd_m04.gif

1013 ms

hd_m05.gif

hd_m05.gif

1187 ms

hd_m06.gif

hd_m06.gif

1216 ms

id_sub_info.gif

id_sub_info.gif

1217 ms

id_excla.gif

id_excla.gif

1216 ms

id_sub_press.gif

id_sub_press.gif

1395 ms

id_backnum.gif

id_backnum.gif

1416 ms

id_sub_ir.gif

id_sub_ir.gif

1568 ms

sd_b01.jpg

sd_b01.jpg

1605 ms

sd_b02.jpg

sd_b02.jpg

1605 ms

sd_b03.jpg

sd_b03.jpg

1621 ms

sd_l01.gif

sd_l01.gif

1775 ms

sd_l05.gif

sd_l05.gif

1820 ms

sd_l02.gif

sd_l02.gif

1954 ms

sd_l03.gif

sd_l03.gif

2007 ms

sd_sch_bt01.gif

sd_sch_bt01.gif

2008 ms

sd_sch_bt02.gif

sd_sch_bt02.gif

2020 ms

sd_sch_bt03.gif

sd_sch_bt03.gif

2158 ms

fb_golf.jpg

fb_golf.jpg

2197 ms

tennis_fb.jpg

tennis_fb.jpg

2354 ms

babolat_fb.jpg

babolat_fb.jpg

2407 ms

ct_pagetop.gif

ct_pagetop.gif

2412 ms

24 ms

ft_b01.gif

ft_b01.gif

2416 ms

__utm.gif

__utm.gif

14 ms

default+ja.css

default+ja.css

5 ms

default+ja.I.js

default+ja.I.js

12 ms

async-ads.js

async-ads.js

52 ms

small-logo.png

small-logo.png

46 ms

hd_search_send_no.gif

hd_search_send_no.gif

385 ms

ft_b02.gif

ft_b02.gif

2366 ms

ft_b03.gif

ft_b03.gif

2390 ms

ft_logo.gif

ft_logo.gif

2375 ms

ct_bg_home.png

ct_bg_home.png

2416 ms

id_line.gif

id_line.gif

2420 ms

ic_golf.gif

ic_golf.gif

2429 ms

hd_search_send_no.gif

hd_search_send_no.gif

2450 ms

ic_tennis.gif

ic_tennis.gif

2384 ms

id_mark.gif

id_mark.gif

2363 ms

ft_bg.png

ft_bg.png

2425 ms

hd_b01_o.gif

hd_b01_o.gif

206 ms

hd_b02_o.gif

hd_b02_o.gif

205 ms

hd_b03_o.gif

hd_b03_o.gif

403 ms

hd_b04_o.gif

hd_b04_o.gif

407 ms

hd_b05_o.gif

hd_b05_o.gif

408 ms

hd_m01_o.gif

hd_m01_o.gif

408 ms

hd_m02_o.gif

hd_m02_o.gif

591 ms

hd_m03_o.gif

hd_m03_o.gif

603 ms

hd_m04_o.gif

hd_m04_o.gif

795 ms

hd_m05_o.gif

hd_m05_o.gif

805 ms

hd_m06_o.gif

hd_m06_o.gif

805 ms

id_backnum_o.gif

id_backnum_o.gif

813 ms

sd_b01_o.jpg

sd_b01_o.jpg

993 ms

sd_b02_o.jpg

sd_b02_o.jpg

1008 ms

sd_b03_o.jpg

sd_b03_o.jpg

1202 ms

sd_l01_o.gif

sd_l01_o.gif

1207 ms

sd_l05_o.gif

sd_l05_o.gif

1212 ms

sd_l02_o.gif

sd_l02_o.gif

1213 ms

sd_l03_o.gif

sd_l03_o.gif

1394 ms

sd_sch_bt01_o.gif

sd_sch_bt01_o.gif

1396 ms

sd_sch_bt02_o.gif

sd_sch_bt02_o.gif

1608 ms

sd_sch_bt03_o.gif

sd_sch_bt03_o.gif

1600 ms

ct_pagetop_o.gif

ct_pagetop_o.gif

1611 ms

ft_b01_o.gif

ft_b01_o.gif

1616 ms

ft_b02_o.gif

ft_b02_o.gif

1783 ms

ft_b03_o.gif

ft_b03_o.gif

1792 ms

Accessibility Review

dunlopsports.co.jp accessibility score

79

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-hidden="true"] elements contain focusable descendents

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

Image elements do not have [alt] attributes

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.

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

dunlopsports.co.jp best practices score

75

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

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

dunlopsports.co.jp SEO score

82

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

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

    SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dunlopsports.co.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 Dunlopsports.co.jp main page’s claimed encoding is shift_jis. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

dunlopsports.co.jp

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