Tools & Wizards About Us
d1gp.co.jp screenshot

Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 75% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

d1gp.co.jp

D1 OFFICIAL WEBSITE

Page Load Speed

16.5 sec in total

First Response

570 ms

Resources Loaded

13.2 sec

Page Rendered

2.8 sec

d1gp.co.jp screenshot

About Website

Click here to check amazing D1 Gp content for Russia. Otherwise, check out these important facts you probably never knew about d1gp.co.jp

1

Visit d1gp.co.jp

Key Findings

We analyzed D1gp.co.jp page load time and found that the first response time was 570 ms and then it took 15.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

d1gp.co.jp performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

19/100

10%

LCP (Largest Contentful Paint)

Value13.7 s

0/100

25%

SI (Speed Index)

Value10.5 s

7/100

10%

TBT (Total Blocking Time)

Value1,510 ms

14/100

30%

CLS (Cumulative Layout Shift)

Value0.06

98/100

15%

TTI (Time to Interactive)

Value23.6 s

1/100

10%

Network Requests Diagram

d1gp.co.jp

570 ms

style.css

342 ms

jquery-2.1.4.min.js

849 ms

import.js

429 ms

unorderedlist.js

428 ms

Our browser made a total of 143 requests to load all elements on the main page. We found that 74% of them (106 requests) were addressed to the original D1gp.co.jp, 6% (8 requests) were made to Fonts.gstatic.com and 5% (7 requests) were made to Apis.google.com. The less responsive or slowest element that took the longest time to load (5.1 sec) belongs to the original domain D1gp.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 638.9 kB (18%)

Content Size

3.5 MB

After Optimization

2.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of D1gp.co.jp main page is 3.5 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 2.8 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 32.4 kB

  • Original 40.6 kB
  • After minification 31.4 kB
  • After compression 8.2 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. This page needs HTML code to be minified as it can gain 9.3 kB, which is 23% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 32.4 kB or 80% of the original size.

Image Optimization

-3%

Potential reduce by 83.2 kB

  • Original 2.8 MB
  • After minification 2.7 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. D1 Gp images are well optimized though.

JavaScript Optimization

-62%

Potential reduce by 214.9 kB

  • Original 344.9 kB
  • After minification 342.5 kB
  • After compression 130.0 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 214.9 kB or 62% of the original size.

CSS Optimization

-84%

Potential reduce by 308.4 kB

  • Original 365.9 kB
  • After minification 339.1 kB
  • After compression 57.5 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. D1gp.co.jp needs all CSS files to be minified and compressed as it can save up to 308.4 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 39 (30%)

Requests Now

129

After Optimization

90

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 129 CSS, Javascripts, AJAX and image requests in order to completely render the main page of D1 Gp. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

d1gp.co.jp

d1gp.co.jp

570 ms

style.css

style.css

342 ms

jquery-2.1.4.min.js

jquery-2.1.4.min.js

849 ms

import.js

import.js

429 ms

unorderedlist.js

unorderedlist.js

428 ms

01_boilerplate.css

01_boilerplate.css

339 ms

02_common.css

02_common.css

670 ms

03_common.css

03_common.css

359 ms

02_what.css

02_what.css

430 ms

04_sche.css

04_sche.css

624 ms

08_dvd.css

08_dvd.css

679 ms

jquery.bxslider.css

jquery.bxslider.css

691 ms

98_test1.css

98_test1.css

788 ms

99_test2.css

99_test2.css

1050 ms

99_what.css

99_what.css

977 ms

css

css

116 ms

01_respond.min.js

01_respond.min.js

183 ms

02_script.js

02_script.js

342 ms

jquery.bxslider.min.js

jquery.bxslider.min.js

535 ms

social-button.js

social-button.js

381 ms

ga.js

ga.js

108 ms

14.png

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640 ms

black030.png

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694 ms

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1450 ms

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logo-square.png

1518 ms

Y_TKV6o8WovbUd3m_X9aAA.ttf

Y_TKV6o8WovbUd3m_X9aAA.ttf

548 ms

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HqHm7BVC_nzzTui2lzQTDaCWcynf_cDxXwCLxiixG1c.ttf

572 ms

bH7276GfdCjMjApa_dkG6aCWcynf_cDxXwCLxiixG1c.ttf

bH7276GfdCjMjApa_dkG6aCWcynf_cDxXwCLxiixG1c.ttf

570 ms

logo-10.png

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760 ms

sp-granturismo.png

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558 ms

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1312 ms

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1392 ms

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1525 ms

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1703 ms

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1827 ms

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1878 ms

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2005 ms

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2009 ms

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2041 ms

__utm.gif

__utm.gif

416 ms

bLg_1U8ZIek

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895 ms

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1737 ms

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1905 ms

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2099 ms

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1995 ms

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2719 ms

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2608 ms

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2604 ms

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2623 ms

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3053 ms

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3508 ms

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3774 ms

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4594 ms

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3470 ms

RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf

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755 ms

zN7GBFwfMP4uA6AR0HCoLQ.ttf

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829 ms

Hgo13k-tfSpn0qi1SFdUfaCWcynf_cDxXwCLxiixG1c.ttf

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834 ms

d-6IYplOFocCacKzxwXSOKCWcynf_cDxXwCLxiixG1c.ttf

d-6IYplOFocCacKzxwXSOKCWcynf_cDxXwCLxiixG1c.ttf

835 ms

re001.jpg

re001.jpg

3871 ms

r001.jpg

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3077 ms

r002.jpg

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4753 ms

re001.jpg

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4247 ms

www-embed-player-vfltSWGRn.css

www-embed-player-vfltSWGRn.css

74 ms

www-embed-player.js

www-embed-player.js

94 ms

r001.jpg

r001.jpg

4489 ms

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3329 ms

ra006.jpg

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3401 ms

rf001.jpg

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3690 ms

-Wxc5n6ag8mSVPmrosQZJ6hEHpQooK3Qr1Gxv0lUkvE.js

-Wxc5n6ag8mSVPmrosQZJ6hEHpQooK3Qr1Gxv0lUkvE.js

24 ms

ad_status.js

ad_status.js

67 ms

d1grandprix.png

d1grandprix.png

3814 ms

videooption.png

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4064 ms

manabu-suzuki.png

manabu-suzuki.png

4040 ms

hisashi-kamimoto.png

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4383 ms

masato-kawabata.png

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4594 ms

akinori-utsumi.png

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4554 ms

yoshifumi-tadokoro.png

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4588 ms

seimi-tanaka.png

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4712 ms

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4770 ms

michie-mimoto.png

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4774 ms

kazuya-bai.png

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4899 ms

kenji-takayama.png

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4696 ms

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4512 ms

kunihiko-teramachi.png

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4799 ms

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4939 ms

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4981 ms

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5030 ms

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4750 ms

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4906 ms

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4730 ms

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5033 ms

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5063 ms

yuji-tanaka.png

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5038 ms

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4745 ms

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4359 ms

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4550 ms

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4214 ms

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4499 ms

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4526 ms

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4134 ms

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3959 ms

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3755 ms

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3800 ms

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3771 ms

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3644 ms

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3595 ms

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3534 ms

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3372 ms

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3269 ms

bx_loader.gif

bx_loader.gif

3419 ms

controls.png

controls.png

3261 ms

widgets.js

widgets.js

8 ms

all.js

all.js

148 ms

plusone.js

plusone.js

290 ms

button.b059c0eb61ea902a882e5c5b3c66a17a.js

button.b059c0eb61ea902a882e5c5b3c66a17a.js

143 ms

211 ms

xd_arbiter.php

xd_arbiter.php

115 ms

xd_arbiter.php

xd_arbiter.php

205 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

138 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

163 ms

fastbutton

fastbutton

250 ms

tweet_button.baa54ded21a982344c4ced326592f3de.ja.html

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80 ms

like.php

like.php

188 ms

postmessageRelay

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140 ms

cb=gapi.loaded_0

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138 ms

LVx-xkvaJ0b.png

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136 ms

jot

jot

109 ms

Accessibility Review

d1gp.co.jp accessibility score

90

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

d1gp.co.jp 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

High

Page has valid source maps

SEO Factors

d1gp.co.jp SEO score

98

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 D1gp.co.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 D1gp.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

d1gp.co.jp

Open Graph description is not detected on the main page of D1 Gp. 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: