Report Summary

  • 0

    Performance

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

earthstar.jp

株式会社アース・スター エンターテイメント|メディアミックス・出版

Page Load Speed

8.1 sec in total

First Response

515 ms

Resources Loaded

7.1 sec

Page Rendered

534 ms

earthstar.jp screenshot

About Website

Click here to check amazing Earthstar content for Japan. Otherwise, check out these important facts you probably never knew about earthstar.jp

私たち株式会社アース・スター エンターテイメントは、魅力的なメディアミックスコンテンツを生み出す出版社として、出版・音楽・映像等幅広い事業分野でメディアミックスを推進しています。

Visit earthstar.jp

Key Findings

We analyzed Earthstar.jp page load time and found that the first response time was 515 ms and then it took 7.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

earthstar.jp performance score

0

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.0 s

0/100

10%

LCP (Largest Contentful Paint)

Value0

0/100

25%

SI (Speed Index)

Value23.9 s

0/100

10%

TBT (Total Blocking Time)

Value1,080 ms

24/100

30%

CLS (Cumulative Layout Shift)

Value0.1

90/100

15%

TTI (Time to Interactive)

Value17.2 s

4/100

10%

Network Requests Diagram

earthstar.jp

515 ms

www.earthstar.jp

518 ms

www.earthstar.co.jp

1265 ms

gtm.js

60 ms

style.min.css

177 ms

Our browser made a total of 43 requests to load all elements on the main page. We found that 5% of them (2 requests) were addressed to the original Earthstar.jp, 88% (38 requests) were made to Earthstar.co.jp and 5% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (4.1 sec) relates to the external source Earthstar.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 146.2 kB (1%)

Content Size

10.9 MB

After Optimization

10.8 MB

In fact, the total size of Earthstar.jp main page is 10.9 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. 40% of websites need less resources to load. Images take 10.6 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 72.9 kB

  • Original 84.1 kB
  • After minification 76.9 kB
  • After compression 11.1 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 72.9 kB or 87% of the original size.

Image Optimization

-0%

Potential reduce by 34.1 kB

  • Original 10.6 MB
  • After minification 10.6 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. Earthstar images are well optimized though.

JavaScript Optimization

-15%

Potential reduce by 18.6 kB

  • Original 127.8 kB
  • After minification 127.8 kB
  • After compression 109.1 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 18.6 kB or 15% of the original size.

CSS Optimization

-26%

Potential reduce by 20.6 kB

  • Original 79.2 kB
  • After minification 79.1 kB
  • After compression 58.6 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. Earthstar.jp needs all CSS files to be minified and compressed as it can save up to 20.6 kB or 26% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (13%)

Requests Now

40

After Optimization

35

The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Earthstar. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

earthstar.jp accessibility score

90

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

Buttons do not have an accessible name

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.

Best Practices

earthstar.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

earthstar.jp SEO score

100

Search Engine Optimization Advices

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

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 Earthstar.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 Earthstar.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 data is detected on the main page of Earthstar. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: