Tools & Wizards About Us

Report Summary

  • 33

    Performance

    Renders faster than
    53% of other websites

  • 77

    Accessibility

    Visual factors better than
    that of 44% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 76

    SEO

    Google-friendlier than
    35% of websites

kikubon.jp

無料オーディオブックが600冊以上！ 声優・ナレーターの声と演技で楽しむ朗読サイト！ | 耳で聴く本(きく本) kikubon（キクボン）

Page Load Speed

6.1 sec in total

First Response

295 ms

Resources Loaded

5 sec

Page Rendered

770 ms

About Website

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

オーディオブックサイト耳で聴く本「kikubon」。銀河英雄伝説、アルスラーン戦記、グインサーガ等、話題の書籍を声優・ナレーターの声と演技でオーディオブック化。 声優・ナレーターの下山吉光さん朗読の銀河英雄伝説は外伝を含めたシリーズ全15巻揃っており、さらには声優・佐々木望版「ユリアンのイゼルローン日記」も配信中。

Visit kikubon.jp

Key Findings

We analyzed Kikubon.jp page load time and found that the first response time was 295 ms and then it took 5.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

kikubon.jp performance score

33

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.6 s

6/100

10%

LCP (Largest Contentful Paint)

Value6.9 s

7/100

25%

SI (Speed Index)

Value8.0 s

22/100

10%

TBT (Total Blocking Time)

Value490 ms

59/100

30%

CLS (Cumulative Layout Shift)

Value0.217

57/100

15%

TTI (Time to Interactive)

Value11.6 s

18/100

10%

Network Requests Diagram

kikubon.jp

295 ms

kikubon.jp

974 ms

cookieconsent.min.css

24 ms

normalize.css

324 ms

swiper-bundle.min.css

575 ms

Our browser made a total of 154 requests to load all elements on the main page. We found that 77% of them (119 requests) were addressed to the original Kikubon.jp, 12% (18 requests) were made to Platform.twitter.com and 2% (3 requests) were made to Scontent-nrt1-2.cdninstagram.com. The less responsive or slowest element that took the longest time to load (2 sec) relates to the external source Scontent-nrt1-2.cdninstagram.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 540.3 kB (10%)

Content Size

5.3 MB

After Optimization

4.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Kikubon.jp main page is 5.3 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. 70% of websites need less resources to load. Images take 4.7 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 81.7 kB

  • Original 99.5 kB
  • After minification 79.2 kB
  • After compression 17.9 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. This page needs HTML code to be minified as it can gain 20.3 kB, which is 20% 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 81.7 kB or 82% of the original size.

Image Optimization

-1%

Potential reduce by 53.3 kB

  • Original 4.7 MB
  • After minification 4.7 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. Kikubon images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 224.9 kB

  • Original 326.5 kB
  • After minification 314.9 kB
  • After compression 101.6 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 224.9 kB or 69% of the original size.

CSS Optimization

-84%

Potential reduce by 180.5 kB

  • Original 214.2 kB
  • After minification 164.9 kB
  • After compression 33.7 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. Kikubon.jp needs all CSS files to be minified and compressed as it can save up to 180.5 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 35 (23%)

Requests Now

149

After Optimization

114

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 149 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kikubon. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

kikubon.jp accessibility score

77

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.

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

kikubon.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

kikubon.jp SEO score

76

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

Content Best Practices

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

Impact

Issue

High

Image elements do not have [alt] attributes

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kikubon.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 Kikubon.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 Kikubon. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: