Tools & Wizards About Us
speedjapan.co.jp screenshot

Report Summary

  • 76

    Performance

    Renders faster than
    84% of other websites

  • 62

    Accessibility

    Visual factors better than
    that of 28% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 81

    SEO

    Google-friendlier than
    43% of websites

speedjapan.co.jp

ベンツ部品販売,ポルシェ,BMW,ワーゲン,ボルボ等,純正・OEM部品通販のスピードジャパン

Page Load Speed

1.9 sec in total

First Response

298 ms

Resources Loaded

1.3 sec

Page Rendered

272 ms

speedjapan.co.jp screenshot

About Website

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

ベンツ部品 パーツ ポルシェなど輸入車用 ドイツ車 外車パーツ 部品の通信販売 輸入車部品商社スピードジャパンのWebサイトです。

Visit speedjapan.co.jp

Key Findings

We analyzed Speedjapan.co.jp page load time and found that the first response time was 298 ms and then it took 1.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

speedjapan.co.jp performance score

76

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.9 s

87/100

10%

LCP (Largest Contentful Paint)

Value4.4 s

40/100

25%

SI (Speed Index)

Value2.3 s

99/100

10%

TBT (Total Blocking Time)

Value70 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.253

49/100

15%

TTI (Time to Interactive)

Value2.3 s

99/100

10%

Network Requests Diagram

speedjapan.co.jp

298 ms

style.css

207 ms

rov.js

142 ms

to_top.js

141 ms

gs_flash_130-66_ja.js

8 ms

Our browser made a total of 49 requests to load all elements on the main page. We found that 78% of them (38 requests) were addressed to the original Speedjapan.co.jp, 12% (6 requests) were made to Mercedesbenz-net.com and 4% (2 requests) were made to Seal.globalsign.com. The less responsive or slowest element that took the longest time to load (875 ms) relates to the external source Ssif1.globalsign.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 51.1 kB (6%)

Content Size

836.9 kB

After Optimization

785.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Speedjapan.co.jp main page is 836.9 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. 20% of websites need less resources to load. Images take 769.8 kB which makes up the majority of the site volume.

HTML Optimization

-67%

Potential reduce by 12.0 kB

  • Original 17.9 kB
  • After minification 16.1 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 12.0 kB or 67% of the original size.

Image Optimization

-2%

Potential reduce by 12.6 kB

  • Original 769.8 kB
  • After minification 757.3 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. Speedjapan images are well optimized though.

JavaScript Optimization

-4%

Potential reduce by 718 B

  • Original 18.9 kB
  • After minification 18.7 kB
  • After compression 18.2 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. This website has mostly compressed JavaScripts.

CSS Optimization

-85%

Potential reduce by 25.8 kB

  • Original 30.3 kB
  • After minification 24.1 kB
  • After compression 4.5 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. Speedjapan.co.jp needs all CSS files to be minified and compressed as it can save up to 25.8 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (29%)

Requests Now

48

After Optimization

34

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 48 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Speedjapan. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

speedjapan.co.jp

speedjapan.co.jp

298 ms

style.css

style.css

207 ms

rov.js

rov.js

142 ms

to_top.js

to_top.js

141 ms

gs_flash_130-66_ja.js

gs_flash_130-66_ja.js

8 ms

sj_status.html

sj_status.html

100 ms

SJ160304.jpg

SJ160304.jpg

488 ms

gs_noscript_130-66_ja.gif

gs_noscript_130-66_ja.gif

14 ms

siteSeal.do

siteSeal.do

875 ms

ga.js

ga.js

11 ms

bg_top.gif

bg_top.gif

91 ms

SJ210x41.gif

SJ210x41.gif

90 ms

li.gif

li.gif

90 ms

navi.gif

navi.gif

131 ms

navi_li_st.gif

navi_li_st.gif

141 ms

navi_li.gif

navi_li.gif

143 ms

top_img.png

top_img.png

430 ms

h2.gif

h2.gif

146 ms

h3.gif

h3.gif

145 ms

souko.jpg

souko.jpg

268 ms

new_cart.png

new_cart.png

633 ms

SLX-7C_s.jpg

SLX-7C_s.jpg

214 ms

btn.gif

btn.gif

214 ms

SJ151111-s.jpg

SJ151111-s.jpg

216 ms

SJ090601-s.jpg

SJ090601-s.jpg

284 ms

SJ160209-s.jpg

SJ160209-s.jpg

285 ms

warning-banner2.png

warning-banner2.png

429 ms

side_box.gif

side_box.gif

339 ms

side_btn_df.jpg

side_btn_df.jpg

426 ms

side_h3.gif

side_h3.gif

356 ms

side_inbox.gif

side_inbox.gif

409 ms

side_li_carsale.gif

side_li_carsale.gif

428 ms

side_li_benz.gif

side_li_benz.gif

479 ms

side_li_bmw.gif

side_li_bmw.gif

497 ms

side_li_porsche.gif

side_li_porsche.gif

498 ms

side_li_vwaudi.gif

side_li_vwaudi.gif

501 ms

side_li_volvo.gif

side_li_volvo.gif

500 ms

side_li_ferrari.gif

side_li_ferrari.gif

549 ms

side_li_bosch.gif

side_li_bosch.gif

566 ms

side_li_sjstaff.gif

side_li_sjstaff.gif

567 ms

side_li_media.gif

side_li_media.gif

567 ms

foot.gif

foot.gif

568 ms

fooder-logo.jpg

fooder-logo.jpg

620 ms

112-016-0221.jpg

112-016-0221.jpg

468 ms

BAT-C7.jpg

BAT-C7.jpg

472 ms

VN3-A043.jpg

VN3-A043.jpg

404 ms

SJ160302.jpg

SJ160302.jpg

471 ms

129-323-0192.jpg

129-323-0192.jpg

472 ms

__utm.gif

__utm.gif

12 ms

Accessibility Review

speedjapan.co.jp accessibility score

62

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

speedjapan.co.jp best practices score

67

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

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

speedjapan.co.jp SEO score

81

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 Speedjapan.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 Speedjapan.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

speedjapan.co.jp

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