Tools & Wizards About Us
ji-sedai.jp screenshot

Report Summary

  • 39

    Performance

    Renders faster than
    58% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

ji-sedai.jp

星海社Webサイト「ジセダイ」サービス終了のご報告と御礼 | 星海社

Page Load Speed

4.5 sec in total

First Response

362 ms

Resources Loaded

3.8 sec

Page Rendered

403 ms

ji-sedai.jp screenshot

About Website

Visit ji-sedai.jp now to see the best up-to-date Ji Sedai content for Japan and also check out these interesting facts you probably never knew about ji-sedai.jp

星海社のお知らせ「星海社Webサイト「ジセダイ」サービス終了のご報告と御礼」の詳細ページです。

Visit ji-sedai.jp

Key Findings

We analyzed Ji-sedai.jp page load time and found that the first response time was 362 ms and then it took 4.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

ji-sedai.jp performance score

39

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

20/100

10%

LCP (Largest Contentful Paint)

Value5.9 s

14/100

25%

SI (Speed Index)

Value8.3 s

19/100

10%

TBT (Total Blocking Time)

Value520 ms

56/100

30%

CLS (Cumulative Layout Shift)

Value0.109

87/100

15%

TTI (Time to Interactive)

Value11.7 s

17/100

10%

Network Requests Diagram

ji-sedai.jp

362 ms

ji-sedai.jp

851 ms

style.css

660 ms

today.css

468 ms

modernizr.js

467 ms

Our browser made a total of 106 requests to load all elements on the main page. We found that 67% of them (71 requests) were addressed to the original Ji-sedai.jp, 19% (20 requests) were made to Platform.twitter.com and 8% (8 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Ji-sedai.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 189.9 kB (19%)

Content Size

973.9 kB

After Optimization

784.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ji-sedai.jp main page is 973.9 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. 60% of websites need less resources to load. Images take 790.7 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 35.1 kB

  • Original 44.8 kB
  • After minification 39.2 kB
  • After compression 9.7 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 5.6 kB, which is 12% 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 35.1 kB or 78% of the original size.

Image Optimization

-5%

Potential reduce by 36.9 kB

  • Original 790.7 kB
  • After minification 753.8 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. Ji Sedai images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 13.5 kB

  • Original 21.0 kB
  • After minification 21.0 kB
  • After compression 7.5 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 13.5 kB or 64% of the original size.

CSS Optimization

-89%

Potential reduce by 104.4 kB

  • Original 117.4 kB
  • After minification 69.6 kB
  • After compression 13.1 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. Ji-sedai.jp needs all CSS files to be minified and compressed as it can save up to 104.4 kB or 89% of the original size.

Requests Breakdown

Number of requests can be reduced by 33 (32%)

Requests Now

104

After Optimization

71

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 104 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ji Sedai. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 26 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

ji-sedai.jp

ji-sedai.jp

362 ms

ji-sedai.jp

ji-sedai.jp

851 ms

style.css

style.css

660 ms

today.css

today.css

468 ms

modernizr.js

modernizr.js

467 ms

load.js

load.js

666 ms

widgets.js

widgets.js

100 ms

bg.png

bg.png

168 ms

bg2.png

bg2.png

169 ms

logo.png

logo.png

160 ms

utilnav2_normal.png

utilnav2_normal.png

159 ms

utilnav3_normal.png

utilnav3_normal.png

169 ms

bg_startballoon.png

bg_startballoon.png

317 ms

17_normal.png

17_normal.png

318 ms

1_normal.png

1_normal.png

326 ms

2_normal.png

2_normal.png

333 ms

3_normal.png

3_normal.png

334 ms

4_normal.png

4_normal.png

486 ms

5_normal.png

5_normal.png

485 ms

6_normal.png

6_normal.png

487 ms

7_normal.png

7_normal.png

528 ms

icon_twitter_normal.png

icon_twitter_normal.png

529 ms

icon_facebook_normal.png

icon_facebook_normal.png

531 ms

icon_rss_normal.png

icon_rss_normal.png

627 ms

icon_youtube_normal.png

icon_youtube_normal.png

627 ms

icon_slideshare_normal.png

icon_slideshare_normal.png

628 ms

topfeature_gamechanger_1-thumb-728xauto-9284.jpg

topfeature_gamechanger_1-thumb-728xauto-9284.jpg

662 ms

2_normal.png

2_normal.png

664 ms

topfeature_mysteryschool_5-thumb-728xauto-9234.jpg

topfeature_mysteryschool_5-thumb-728xauto-9234.jpg

995 ms

title.png

title.png

779 ms

IMG_3-thumb-autox534-8802-thumb-147x147-8803.jpg

IMG_3-thumb-autox534-8802-thumb-147x147-8803.jpg

778 ms

img_tsukiji.png

img_tsukiji.png

780 ms

bg.png

bg.png

821 ms

h11.png

h11.png

828 ms

9b7c39422df6322d394298d2506395a0_1-thumb-700xauto-9056-thumb-autox90-9061.png

9b7c39422df6322d394298d2506395a0_1-thumb-700xauto-9056-thumb-autox90-9061.png

933 ms

mimi-thumb-autox88-9018.jpeg

mimi-thumb-autox88-9018.jpeg

934 ms

noimageMini.png

noimageMini.png

936 ms

metal100_802_788_twitter_1-thumb-autox88-8843.jpeg

metal100_802_788_twitter_1-thumb-autox88-8843.jpeg

987 ms

h10.png

h10.png

993 ms

IMG_3117_2-thumb-500xauto-8590-thumb-autox90-8591.jpeg

IMG_3117_2-thumb-500xauto-8590-thumb-autox90-8591.jpeg

1088 ms

9784065151563-thumb-autox490-8521-thumb-90xauto-8522.jpg

9784065151563-thumb-autox490-8521-thumb-90xauto-8522.jpg

1089 ms

9784065151570_1-thumb-autox490-8519-thumb-90xauto-8520.jpg

9784065151570_1-thumb-autox490-8519-thumb-90xauto-8520.jpg

1089 ms

likebox.php

likebox.php

95 ms

9784065151570-thumb-autox653-8502-thumb-90xauto-8503.jpg

9784065151570-thumb-autox653-8502-thumb-90xauto-8503.jpg

1097 ms

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

65 ms

settings

settings

147 ms

lFC1eVji7gN.css

lFC1eVji7gN.css

21 ms

AkV4cevgxL7.js

AkV4cevgxL7.js

28 ms

Y4zFOWmUObv.js

Y4zFOWmUObv.js

58 ms

Ue-M3hwtZyC.js

Ue-M3hwtZyC.js

58 ms

HbT8HXdZYIC.js

HbT8HXdZYIC.js

63 ms

TwSfsj5nvl7.js

TwSfsj5nvl7.js

63 ms

p55HfXW__mM.js

p55HfXW__mM.js

62 ms

192440e565f2b4727dc9f0aaafaed57d-thumb-autox653-8497-thumb-90xauto-8498.jpg

192440e565f2b4727dc9f0aaafaed57d-thumb-autox653-8497-thumb-90xauto-8498.jpg

1006 ms

9784065144770-thumb-autox490-8491-thumb-90xauto-8492.jpg

9784065144770-thumb-autox490-8491-thumb-90xauto-8492.jpg

1004 ms

9784065144763-thumb-autox490-8489-thumb-90xauto-8490.jpg

9784065144763-thumb-autox490-8489-thumb-90xauto-8490.jpg

1088 ms

h15.png

h15.png

1236 ms

gamechanger_thumb_1.jpg

gamechanger_thumb_1.jpg

1277 ms

305277169_486102760188505_6797809354597926594_n.png

305277169_486102760188505_6797809354597926594_n.png

27 ms

302423309_486102756855172_6101466673415478957_n.png

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19 ms

UXtr_j2Fwe-.png

UXtr_j2Fwe-.png

8 ms

button.856debeac157d9669cf51e73a08fbc93.js

button.856debeac157d9669cf51e73a08fbc93.js

24 ms

timeline.e108540dddc96e4b707f5cf259a582d7.js

timeline.e108540dddc96e4b707f5cf259a582d7.js

46 ms

new.png

new.png

1006 ms

embeds

embeds

29 ms

thumb_5.jpg

thumb_5.jpg

1174 ms

embeds

embeds

56 ms

follow_button.2f70fb173b9000da126c79afe2098f02.ja.html

follow_button.2f70fb173b9000da126c79afe2098f02.ja.html

51 ms

outlinerThumbnail.jpg

outlinerThumbnail.jpg

1005 ms

h6.png

h6.png

1070 ms

shikoujikkenn-thumb-autox150-9368.png

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1154 ms

ji_se_dai

ji_se_dai

98 ms

polyfills-a40ef1678bae11e696dba45124eadd70.js

polyfills-a40ef1678bae11e696dba45124eadd70.js

24 ms

runtime-b1c52fd0a13ead5fcf6b.js

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48 ms

modules-96ebc7ac3ad66d681a3d.js

modules-96ebc7ac3ad66d681a3d.js

52 ms

main-babd9234dc048fb47339.js

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64 ms

_app-a9c9f1a99e4414675fb1.js

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98 ms

%5BscreenName%5D-0517bdda27d5006a5a2d.js

%5BscreenName%5D-0517bdda27d5006a5a2d.js

96 ms

_buildManifest.js

_buildManifest.js

140 ms

_ssgManifest.js

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141 ms

kurumamirai-thumb-autox150-9371.png

kurumamirai-thumb-autox150-9371.png

1009 ms

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1073 ms

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keijidrama-thumb-autox150-9364.png

1073 ms

h9.png

h9.png

1072 ms

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1123 ms

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1292 ms

8526.0c32a8f0cfc5749221a3.js

8526.0c32a8f0cfc5749221a3.js

24 ms

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25 ms

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27 ms

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53 ms

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44 ms

4956.c4e51ef593974b9db0bb.js

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90 ms

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25 ms

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1034 ms

h8.png

h8.png

1086 ms

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1086 ms

u25Thumbnail_15.jpg

u25Thumbnail_15.jpg

1093 ms

startupTaidan_07.jpg

startupTaidan_07.jpg

1156 ms

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thumbnail_201510_02.jpg

1047 ms

sideReleaseBook_normal.png

sideReleaseBook_normal.png

1243 ms

h.png

h.png

1088 ms

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1088 ms

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1156 ms

marker_circle.png

marker_circle.png

1054 ms

arrow_normal.png

arrow_normal.png

1056 ms

1.png

1.png

1086 ms

Accessibility Review

ji-sedai.jp accessibility score

89

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

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

ji-sedai.jp 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

ji-sedai.jp SEO score

92

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

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 Ji-sedai.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 Ji-sedai.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

ji-sedai.jp

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