Tools & Wizards About Us

Report Summary

  • 56

    Performance

    Renders faster than
    72% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 83% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 81

    SEO

    Google-friendlier than
    43% of websites

supercell.jp

supercell Official Web

Page Load Speed

3.8 sec in total

First Response

336 ms

Resources Loaded

3.4 sec

Page Rendered

103 ms

About Website

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

supercell公式サイト（最新情報、プロフィール、ディスコグラフィー、ブログなど）。

Visit supercell.jp

Key Findings

We analyzed Supercell.jp page load time and found that the first response time was 336 ms and then it took 3.5 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

supercell.jp performance score

56

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value7.8 s

3/100

25%

SI (Speed Index)

Value6.4 s

40/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value6.4 s

60/100

10%

Network Requests Diagram

supercell.jp

336 ms

supercell.jp

674 ms

www.supercell.jp

333 ms

www.supercell.jp

683 ms

css

37 ms

Our browser made a total of 35 requests to load all elements on the main page. We found that 69% of them (24 requests) were addressed to the original Supercell.jp, 6% (2 requests) were made to Ssl.google-analytics.com and 6% (2 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (683 ms) belongs to the original domain Supercell.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 72.5 kB (16%)

Content Size

459.8 kB

After Optimization

387.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Supercell.jp main page is 459.8 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. 15% of websites need less resources to load. Images take 301.5 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 6.4 kB

  • Original 9.1 kB
  • After minification 6.9 kB
  • After compression 2.7 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. This page needs HTML code to be minified as it can gain 2.2 kB, which is 24% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 6.4 kB or 70% of the original size.

Image Optimization

-2%

Potential reduce by 7.4 kB

  • Original 301.5 kB
  • After minification 294.1 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. Supercell images are well optimized though.

JavaScript Optimization

-34%

Potential reduce by 44.0 kB

  • Original 130.5 kB
  • After minification 116.1 kB
  • After compression 86.4 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 44.0 kB or 34% of the original size.

CSS Optimization

-79%

Potential reduce by 14.7 kB

  • Original 18.7 kB
  • After minification 15.5 kB
  • After compression 4.0 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. Supercell.jp needs all CSS files to be minified and compressed as it can save up to 14.7 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (32%)

Requests Now

28

After Optimization

19

  • Images
  • JavaScript
  • CSS

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Supercell. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

supercell.jp accessibility score

94

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

Links do not have a discernible name

Best Practices

supercell.jp best practices score

67

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

High

Browser errors were logged to the console

SEO Factors

supercell.jp SEO score

81

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 doesn't use 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 Supercell.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 Supercell.jp 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

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