Report Summary

  • 31

    Performance

    Renders faster than
    51% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 84% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 73

    SEO

    Google-friendlier than
    31% of websites

blackrockshooter.jp

BLACK★ROCK SHOOTER ポータルサイト

Page Load Speed

6.1 sec in total

First Response

869 ms

Resources Loaded

4.7 sec

Page Rendered

511 ms

blackrockshooter.jp screenshot

About Website

Click here to check amazing BLACK ROCK SHOOTER content. Otherwise, check out these important facts you probably never knew about blackrockshooter.jp

「ブラック★ロックシューター」の最新情報やこれまでの歩みをお届けする公式ポータルサイトです。

Visit blackrockshooter.jp

Key Findings

We analyzed Blackrockshooter.jp page load time and found that the first response time was 869 ms and then it took 5.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

blackrockshooter.jp performance score

31

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

28/100

10%

LCP (Largest Contentful Paint)

Value23.2 s

0/100

25%

SI (Speed Index)

Value23.5 s

0/100

10%

TBT (Total Blocking Time)

Value700 ms

42/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value16.1 s

6/100

10%

Network Requests Diagram

blackrockshooter.jp

869 ms

txt.css

479 ms

swfobject_modified.js

824 ms

icon-en.jpg

467 ms

bt-01_a.jpg

323 ms

Our browser made a total of 27 requests to load all elements on the main page. We found that 93% of them (25 requests) were addressed to the original Blackrockshooter.jp, 7% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2 sec) belongs to the original domain Blackrockshooter.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 65.8 kB (10%)

Content Size

640.3 kB

After Optimization

574.5 kB

In fact, the total size of Blackrockshooter.jp main page is 640.3 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 582.5 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 7.6 kB

  • Original 10.5 kB
  • After minification 9.8 kB
  • After compression 3.0 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 7.6 kB or 72% of the original size.

Image Optimization

-6%

Potential reduce by 32.9 kB

  • Original 582.5 kB
  • After minification 549.6 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. BLACK ROCK SHOOTER images are well optimized though.

JavaScript Optimization

-46%

Potential reduce by 18.4 kB

  • Original 39.5 kB
  • After minification 30.3 kB
  • After compression 21.2 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 18.4 kB or 46% of the original size.

CSS Optimization

-90%

Potential reduce by 7.0 kB

  • Original 7.8 kB
  • After minification 6.6 kB
  • After compression 813 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. Blackrockshooter.jp needs all CSS files to be minified and compressed as it can save up to 7.0 kB or 90% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

26

After Optimization

26

The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of BLACK ROCK SHOOTER. According to our analytics all requests are already optimized.

Accessibility Review

blackrockshooter.jp accessibility score

94

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

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

blackrockshooter.jp best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

blackrockshooter.jp SEO score

73

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

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 doesn't use legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    N/A

  • Encoding

    SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Blackrockshooter.jp 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 Blackrockshooter.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

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