Tools & Wizards About Us
dfi-japan.com screenshot

Report Summary

  • 81

    Performance

    Renders faster than
    86% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

dfi-japan.com

ホーム | DataFlow International

Page Load Speed

1.8 sec in total

First Response

589 ms

Resources Loaded

1.1 sec

Page Rendered

91 ms

dfi-japan.com screenshot

About Website

Welcome to dfi-japan.com homepage info - get ready to check Dfi Japan best content right away, or after learning these important things about dfi-japan.com

DataFlow International（データフロー・インターナショナル）は、Eコマースプラットフォーム、売上分析プラットフォーム、顧客エンゲージメントプラットフォームを提供する、1986年設立のデータ分析専門企業です。東京を拠点に、革新的なデータソリューションを提供しています。

Visit dfi-japan.com

Key Findings

We analyzed Dfi-japan.com page load time and found that the first response time was 589 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

dfi-japan.com performance score

81

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

66/100

10%

LCP (Largest Contentful Paint)

Value3.3 s

69/100

25%

SI (Speed Index)

Value4.8 s

68/100

10%

TBT (Total Blocking Time)

Value190 ms

90/100

30%

CLS (Cumulative Layout Shift)

Value0.029

100/100

15%

TTI (Time to Interactive)

Value4.7 s

80/100

10%

Network Requests Diagram

dfi-japan.com

589 ms

colors_standard.css

70 ms

template.css

203 ms

joomla-alert.css

131 ms

debug.css

130 ms

Our browser made a total of 28 requests to load all elements on the main page. We found that all of those requests were addressed to Dfi-japan.com and no external sources were called. The less responsive or slowest element that took the longest time to load (589 ms) belongs to the original domain Dfi-japan.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 122.4 kB (34%)

Content Size

357.6 kB

After Optimization

235.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dfi-japan.com main page is 357.6 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. 35% of websites need less resources to load. Javascripts take 152.1 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 40.8 kB

  • Original 52.2 kB
  • After minification 51.3 kB
  • After compression 11.4 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 40.8 kB or 78% of the original size.

Image Optimization

-76%

Potential reduce by 71.7 kB

  • Original 94.7 kB
  • After minification 23.0 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. Obviously, Dfi Japan needs image optimization as it can save up to 71.7 kB or 76% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-4%

Potential reduce by 5.8 kB

  • Original 152.1 kB
  • After minification 152.1 kB
  • After compression 146.4 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

-7%

Potential reduce by 4.1 kB

  • Original 58.6 kB
  • After minification 58.6 kB
  • After compression 54.4 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. Dfi-japan.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 22 (81%)

Requests Now

27

After Optimization

5

  • Images
  • JavaScript
  • CSS

The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dfi Japan. 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 13 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

dfi-japan.com

dfi-japan.com

589 ms

colors_standard.css

colors_standard.css

70 ms

template.css

template.css

203 ms

joomla-alert.css

joomla-alert.css

131 ms

debug.css

debug.css

130 ms

user.css

user.css

135 ms

content.min.css

content.min.css

143 ms

jquery.js

jquery.js

299 ms

core.js

core.js

197 ms

template.js

template.js

196 ms

messages.js

messages.js

212 ms

debug.js

debug.js

214 ms

github.css

github.css

262 ms

debugbar.css

debugbar.css

262 ms

widgets.css

widgets.css

264 ms

openhandler.css

openhandler.css

265 ms

widget.min.css

widget.min.css

284 ms

widget.min.css

widget.min.css

327 ms

highlight.pack.js

highlight.pack.js

396 ms

debugbar.js

debugbar.js

331 ms

widgets.js

widgets.js

331 ms

openhandler.js

openhandler.js

360 ms

widget.min.js

widget.min.js

367 ms

widget.min.js

widget.min.js

392 ms

joomla-alert.css

joomla-alert.css

272 ms

Designer_White_UL.jpg

Designer_White_UL.jpg

68 ms

DFI_Logo_250x68.png

DFI_Logo_250x68.png

68 ms

DFI_Logo_White.png

DFI_Logo_White.png

130 ms

Accessibility Review

dfi-japan.com accessibility score

100

Accessibility Issues

Best Practices

dfi-japan.com best practices score

75

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

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

dfi-japan.com SEO score

92

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

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dfi-japan.com can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and it does not match the claimed English language. Our system also found out that Dfi-japan.com 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

dfi-japan.com

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