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dtn.ne.jp screenshot

Report Summary

  • 88

    Performance

    Renders faster than
    90% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

dtn.ne.jp

ダントツネット

Page Load Speed

2.1 sec in total

First Response

581 ms

Resources Loaded

1.4 sec

Page Rendered

147 ms

dtn.ne.jp screenshot

About Website

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

ダントツネットは安心を第一に提供する、インターネットプロバイダーサービスです。

Visit dtn.ne.jp

Key Findings

We analyzed Dtn.ne.jp page load time and found that the first response time was 581 ms and then it took 1.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

dtn.ne.jp performance score

88

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

72/100

10%

LCP (Largest Contentful Paint)

Value3.4 s

65/100

25%

SI (Speed Index)

Value2.6 s

97/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value2.4 s

99/100

10%

Network Requests Diagram

dtn.ne.jp

581 ms

common.css

191 ms

index.css

380 ms

jquery.min.js

76 ms

common.js

405 ms

Our browser made a total of 17 requests to load all elements on the main page. We found that 76% of them (13 requests) were addressed to the original Dtn.ne.jp, 6% (1 request) were made to Ajax.googleapis.com and 6% (1 request) were made to Google.co.jp. The less responsive or slowest element that took the longest time to load (581 ms) belongs to the original domain Dtn.ne.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 18.4 kB (45%)

Content Size

41.2 kB

After Optimization

22.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dtn.ne.jp main page is 41.2 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. Only 10% of websites need less resources to load. Images take 29.5 kB which makes up the majority of the site volume.

HTML Optimization

-61%

Potential reduce by 2.7 kB

  • Original 4.4 kB
  • After minification 4.2 kB
  • After compression 1.7 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 2.7 kB or 61% of the original size.

Image Optimization

-36%

Potential reduce by 10.5 kB

  • Original 29.5 kB
  • After minification 19.0 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, Dtn needs image optimization as it can save up to 10.5 kB or 36% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-52%

Potential reduce by 242 B

  • Original 469 B
  • After minification 354 B
  • After compression 227 B

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 242 B or 52% of the original size.

CSS Optimization

-73%

Potential reduce by 5.0 kB

  • Original 6.8 kB
  • After minification 5.2 kB
  • After compression 1.9 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. Dtn.ne.jp needs all CSS files to be minified and compressed as it can save up to 5.0 kB or 73% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

15

After Optimization

15

  • Images
  • JavaScript
  • CSS

The browser has sent 15 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dtn. According to our analytics all requests are already optimized.

Network Requests Diagram

dtn.ne.jp

dtn.ne.jp

581 ms

common.css

common.css

191 ms

index.css

index.css

380 ms

jquery.min.js

jquery.min.js

76 ms

common.js

common.js

405 ms

brand

brand

25 ms

brand

brand

23 ms

bg_head.gif

bg_head.gif

190 ms

logo.png

logo.png

203 ms

ico_search.gif

ico_search.gif

206 ms

tel_head.gif

tel_head.gif

367 ms

btn_c.png

btn_c.png

391 ms

btn_b.png

btn_b.png

399 ms

bn_dantotsuhikari.gif

bn_dantotsuhikari.gif

388 ms

logo_sigmaline.gif

logo_sigmaline.gif

390 ms

google_custom_search_watermark.gif

google_custom_search_watermark.gif

32 ms

pagetop.png

pagetop.png

378 ms

Accessibility Review

dtn.ne.jp accessibility score

82

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

Form elements do not have associated labels

Best Practices

dtn.ne.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

SEO Factors

dtn.ne.jp SEO score

77

Search Engine Optimization Advices

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 Dtn.ne.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 Dtn.ne.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

dtn.ne.jp

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