Tools & Wizards About Us
datasystem.co.jp screenshot

Report Summary

  • 37

    Performance

    Renders faster than
    56% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

datasystem.co.jp

データシステム　R-SPEC Datasystem

Page Load Speed

8 sec in total

First Response

741 ms

Resources Loaded

6.3 sec

Page Rendered

951 ms

datasystem.co.jp screenshot

About Website

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

カーアフターパーツ総合メーカー R-SPEC データシステム

Visit datasystem.co.jp

Key Findings

We analyzed Datasystem.co.jp page load time and found that the first response time was 741 ms and then it took 7.3 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

datasystem.co.jp performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

44/100

10%

LCP (Largest Contentful Paint)

Value57.6 s

0/100

25%

SI (Speed Index)

Value12.2 s

3/100

10%

TBT (Total Blocking Time)

Value230 ms

87/100

30%

CLS (Cumulative Layout Shift)

Value0.289

41/100

15%

TTI (Time to Interactive)

Value29.3 s

0/100

10%

Network Requests Diagram

datasystem.co.jp

741 ms

bootstrap.min-4.5.css

534 ms

top_base.css

364 ms

sp_ma.css

369 ms

css2

35 ms

Our browser made a total of 87 requests to load all elements on the main page. We found that 91% of them (79 requests) were addressed to the original Datasystem.co.jp, 2% (2 requests) were made to Fonts.googleapis.com and 2% (2 requests) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (5.7 sec) belongs to the original domain Datasystem.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.3 MB (6%)

Content Size

23.0 MB

After Optimization

21.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Datasystem.co.jp main page is 23.0 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. 70% of websites need less resources to load. Images take 22.8 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 54.4 kB

  • Original 65.0 kB
  • After minification 48.7 kB
  • After compression 10.6 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 16.4 kB, which is 25% 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 54.4 kB or 84% of the original size.

Image Optimization

-5%

Potential reduce by 1.2 MB

  • Original 22.8 MB
  • After minification 21.6 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. Datasystem images are well optimized though.

JavaScript Optimization

-21%

Potential reduce by 14.7 kB

  • Original 69.9 kB
  • After minification 67.3 kB
  • After compression 55.3 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 14.7 kB or 21% of the original size.

CSS Optimization

-29%

Potential reduce by 13.1 kB

  • Original 45.4 kB
  • After minification 45.4 kB
  • After compression 32.2 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. Datasystem.co.jp needs all CSS files to be minified and compressed as it can save up to 13.1 kB or 29% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (14%)

Requests Now

83

After Optimization

71

  • Images
  • JavaScript
  • CSS

The browser has sent 83 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Datasystem. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

datasystem.co.jp

datasystem.co.jp

741 ms

bootstrap.min-4.5.css

bootstrap.min-4.5.css

534 ms

top_base.css

top_base.css

364 ms

sp_ma.css

sp_ma.css

369 ms

css2

css2

35 ms

css2

css2

53 ms

jquery-3.5.1.min.js

jquery-3.5.1.min.js

606 ms

popper.min.js

popper.min.js

369 ms

bootstrap.min-4.5.js

bootstrap.min-4.5.js

607 ms

header.js

header.js

605 ms

swiper.min.css

swiper.min.css

34 ms

swiper.min.js

swiper.min.js

50 ms

RSPEC_logo.jpg

RSPEC_logo.jpg

1145 ms

search_logo.png

search_logo.png

605 ms

RSPEC_logo_sma.png

RSPEC_logo_sma.png

900 ms

top_key_ledt16a.jpg

top_key_ledt16a.jpg

1677 ms

top_key_ledt16a_sma.jpg

top_key_ledt16a_sma.jpg

1652 ms

top_key_sos820.jpg

top_key_sos820.jpg

5336 ms

sos820_main_image_sma.jpg

sos820_main_image_sma.jpg

1783 ms

nbox_key.jpg

nbox_key.jpg

5737 ms

nbox_key_sma.jpg

nbox_key_sma.jpg

2107 ms

top_key_av003.jpg

top_key_av003.jpg

2074 ms

av003_main_image_sma.jpg

av003_main_image_sma.jpg

2045 ms

TOP_key_vik.jpg

TOP_key_vik.jpg

2173 ms

TOP_key_s_vik.jpg

TOP_key_s_vik.jpg

2412 ms

TOP_key_jimny.jpg

TOP_key_jimny.jpg

2353 ms

TOP_key_s_jimny.jpg

TOP_key_s_jimny.jpg

2565 ms

TOP_key_sag297.jpg

TOP_key_sag297.jpg

2404 ms

TOP_key_s_sag297.jpg

TOP_key_s_sag297.jpg

2584 ms

TOP_key_rca.jpg

TOP_key_rca.jpg

2684 ms

TOP_key_s_rca.jpg

TOP_key_s_rca.jpg

2689 ms

TOP_key_tvkit.jpg

TOP_key_tvkit.jpg

2789 ms

TOP_key_s_tvkit.jpg

TOP_key_s_tvkit.jpg

2802 ms

tvkit_icon.png

tvkit_icon.png

2871 ms

rca_icon.png

rca_icon.png

2872 ms

ico_pdf_w.png

ico_pdf_w.png

2975 ms

ico_loupe_w.png

ico_loupe_w.png

2987 ms

rch_icon.png

rch_icon.png

3053 ms

sag297_icon.png

sag297_icon.png

3054 ms

pdf_icon.png

pdf_icon.png

3159 ms

top_icon_tv.jpg

top_icon_tv.jpg

3005 ms

top_icon_camera.jpg

top_icon_camera.jpg

2883 ms

top_icon_rca.jpg

top_icon_rca.jpg

2881 ms

top_icon_moni.jpg

top_icon_moni.jpg

2982 ms

font

font

352 ms

top_icon_av.jpg

top_icon_av.jpg

2816 ms

top_icon_safety.jpg

top_icon_safety.jpg

2822 ms

top_icon_utility.jpg

top_icon_utility.jpg

2824 ms

top_icon_dvr.jpg

top_icon_dvr.jpg

2933 ms

font

font

318 ms

top_icon_smapho.jpg

top_icon_smapho.jpg

2945 ms

js

js

325 ms

top_icon_asc.jpg

top_icon_asc.jpg

2712 ms

PAJJhLM6sSoWKfWCAAwDAjgbRAAB42mNgYGBkAIIbCZo5IPrmUn0hGA0AO8EFTQAA

PAJJhLM6sSoWKfWCAAwDAjgbRAAB42mNgYGBkAIIbCZo5IPrmUn0hGA0AO8EFTQAA

20 ms

jquery.alerts.css

jquery.alerts.css

2468 ms

jquery.alerts3.js

jquery.alerts3.js

2071 ms

top_icon_aero.jpg

top_icon_aero.jpg

2060 ms

top_icon_interior.jpg

top_icon_interior.jpg

2015 ms

top_icon_light.jpg

top_icon_light.jpg

1751 ms

top_icon_muff.jpg

top_icon_muff.jpg

1836 ms

top_icon_blank.jpg

top_icon_blank.jpg

1815 ms

lbx.png

lbx.png

1807 ms

vezel02.png

vezel02.png

1627 ms

mazda2_2024.png

mazda2_2024.png

1690 ms

vx240zfe.png

vx240zfe.png

1693 ms

wr-v.png

wr-v.png

1598 ms

yaris.png

yaris.png

1580 ms

sup_notice_icon.png

sup_notice_icon.png

1596 ms

sup_qa_icon.png

sup_qa_icon.png

1602 ms

sup_email_icon.png

sup_email_icon.png

1556 ms

sup_repair_icon.png

sup_repair_icon.png

1544 ms

sup_user_icon.png

sup_user_icon.png

1600 ms

sup_manual_icon.png

sup_manual_icon.png

1605 ms

sup_testcar_icon.png

sup_testcar_icon.png

1556 ms

sup_shop_icon.png

sup_shop_icon.png

1543 ms

youtube_logo01.png

youtube_logo01.png

1602 ms

y_logo.png

y_logo.png

1606 ms

top_mov_jimny_custom.jpg

top_mov_jimny_custom.jpg

1555 ms

top_mov_rck_jim.jpg

top_mov_rck_jim.jpg

1542 ms

top_mov_sck.png

top_mov_sck.png

1615 ms

top_mov_sos820.jpg

top_mov_sos820.jpg

1613 ms

top_mov_VIK.jpg

top_mov_VIK.jpg

1554 ms

top_mov_rca.jpg

top_mov_rca.jpg

1545 ms

top_mov_bsc.jpg

top_mov_bsc.jpg

1621 ms

top_mov_tv.png

top_mov_tv.png

1618 ms

RSPEC_logo3_sma.png

RSPEC_logo3_sma.png

1549 ms

pagetop.png

pagetop.png

1541 ms

Accessibility Review

datasystem.co.jp accessibility score

98

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

datasystem.co.jp best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

datasystem.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

    JA

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Datasystem.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 Datasystem.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

datasystem.co.jp

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