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blackgun.info screenshot

Report Summary

  • 77

    Performance

    Renders faster than
    85% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 86% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

blackgun.info

特許と持続可能な競争優位性

Page Load Speed

3.7 sec in total

First Response

802 ms

Resources Loaded

2.5 sec

Page Rendered

400 ms

blackgun.info screenshot

About Website

Welcome to blackgun.info homepage info - get ready to check Blackgun best content right away, or after learning these important things about blackgun.info

特許を活用して競争優位性を築く方法や成功事例をご紹介します。特許の技術保護から特許ポートフォリオの強化、企業のイノベーション文化に至るまで、持続可能なビジネス競争力を構築するための情報を提供します。特許に関心のある経営者やイノベーターに向けた価値あるコンテンツをお届けします。特許を活用した企業の成功を探る一助として、特許戦略について深堀りします。

Visit blackgun.info

Key Findings

We analyzed Blackgun.info page load time and found that the first response time was 802 ms and then it took 2.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

blackgun.info performance score

77

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

56/100

10%

LCP (Largest Contentful Paint)

Value2.8 s

83/100

25%

SI (Speed Index)

Value4.6 s

71/100

10%

TBT (Total Blocking Time)

Value100 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.336

34/100

15%

TTI (Time to Interactive)

Value3.4 s

93/100

10%

Network Requests Diagram

blackgun.info

802 ms

normalize.css

338 ms

jquery.bxslider.css

348 ms

font-awesome.min.css

28 ms

mainstyle.css

349 ms

Our browser made a total of 20 requests to load all elements on the main page. We found that 85% of them (17 requests) were addressed to the original Blackgun.info, 10% (2 requests) were made to Maxcdn.bootstrapcdn.com and 5% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Blackgun.info.

Page Optimization Overview & Recommendations

Page size can be reduced by 59.3 kB (3%)

Content Size

2.0 MB

After Optimization

2.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Blackgun.info main page is 2.0 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. 30% of websites need less resources to load. Images take 1.9 MB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 14.1 kB

  • Original 19.1 kB
  • After minification 17.2 kB
  • After compression 4.9 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 14.1 kB or 74% of the original size.

Image Optimization

-0%

Potential reduce by 799 B

  • Original 1.9 MB
  • After minification 1.9 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. Blackgun images are well optimized though.

JavaScript Optimization

-38%

Potential reduce by 24.1 kB

  • Original 63.2 kB
  • After minification 62.7 kB
  • After compression 39.1 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 24.1 kB or 38% of the original size.

CSS Optimization

-80%

Potential reduce by 20.3 kB

  • Original 25.4 kB
  • After minification 15.2 kB
  • After compression 5.0 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. Blackgun.info needs all CSS files to be minified and compressed as it can save up to 20.3 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (39%)

Requests Now

18

After Optimization

11

  • Images
  • JavaScript
  • CSS

The browser has sent 18 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Blackgun. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

blackgun.info

blackgun.info

802 ms

normalize.css

normalize.css

338 ms

jquery.bxslider.css

jquery.bxslider.css

348 ms

font-awesome.min.css

font-awesome.min.css

28 ms

mainstyle.css

mainstyle.css

349 ms

forsmp.css

forsmp.css

350 ms

jquery.min.js

jquery.min.js

23 ms

jquery.bxslider.min.js

jquery.bxslider.min.js

585 ms

jquery.slicknav.min.js

jquery.slicknav.min.js

398 ms

common.js

common.js

506 ms

top_slid-01_1.jpg

top_slid-01_1.jpg

803 ms

top_slid-01_2.jpg

top_slid-01_2.jpg

735 ms

top_slid-01_3.jpg

top_slid-01_3.jpg

586 ms

onsen9.jpg

onsen9.jpg

868 ms

iworkedhard15.jpg

iworkedhard15.jpg

1009 ms

macchalate14.jpg

macchalate14.jpg

1043 ms

manufacturing_business_5.jpg

manufacturing_business_5.jpg

1172 ms

bx_loader.gif

bx_loader.gif

909 ms

controls.png

controls.png

1003 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

12 ms

Accessibility Review

blackgun.info accessibility score

95

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

Links do not have a discernible name

Best Practices

blackgun.info 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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

blackgun.info SEO score

90

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

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 Blackgun.info 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 Blackgun.info 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

blackgun.info

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