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d-black.net screenshot

Report Summary

  • 85

    Performance

    Renders faster than
    88% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

d-black.net

DARKER THAN BLACK

Page Load Speed

3.9 sec in total

First Response

696 ms

Resources Loaded

3.1 sec

Page Rendered

111 ms

d-black.net screenshot

About Website

Welcome to d-black.net homepage info - get ready to check D BLACK best content for Japan right away, or after learning these important things about d-black.net

DARKER THAN BLACK

Visit d-black.net

Key Findings

We analyzed D-black.net page load time and found that the first response time was 696 ms and then it took 3.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

d-black.net performance score

85

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

79/100

10%

LCP (Largest Contentful Paint)

Value3.8 s

55/100

25%

SI (Speed Index)

Value3.9 s

82/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.2 s

99/100

10%

Network Requests Diagram

www.d-black.net

696 ms

top.css

192 ms

img1.jpg

1039 ms

img2.jpg

1010 ms

Our browser made a total of 4 requests to load all elements on the main page. We found that all of those requests were addressed to D-black.net and no external sources were called. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain D-black.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.6 kB (1%)

Content Size

312.2 kB

After Optimization

309.6 kB

  • HTML
  • Images
  • CSS

In fact, the total size of D-black.net main page is 312.2 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 5% of websites need less resources to load. Images take 307.6 kB which makes up the majority of the site volume.

HTML Optimization

-47%

Potential reduce by 894 B

  • Original 1.9 kB
  • After minification 1.9 kB
  • After compression 1.0 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 894 B or 47% of the original size.

Image Optimization

-0%

Potential reduce by 29 B

  • Original 307.6 kB
  • After minification 307.6 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. D BLACK images are well optimized though.

CSS Optimization

-64%

Potential reduce by 1.7 kB

  • Original 2.7 kB
  • After minification 2.0 kB
  • After compression 965 B

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. D-black.net needs all CSS files to be minified and compressed as it can save up to 1.7 kB or 64% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

3

After Optimization

3

  • Images
  • CSS

The browser has sent 3 CSS, Javascripts, AJAX and image requests in order to completely render the main page of D BLACK. According to our analytics all requests are already optimized.

Network Requests Diagram

www.d-black.net

www.d-black.net

696 ms

top.css

top.css

192 ms

img1.jpg

img1.jpg

1039 ms

img2.jpg

img2.jpg

1010 ms

Accessibility Review

d-black.net accessibility score

93

Accessibility Issues

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

d-black.net 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

SEO Factors

d-black.net SEO score

75

Search Engine Optimization Advices

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 D-black.net 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 D-black.net 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

d-black.net

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