ebookjapan.jp

https://ebookjapan.jp· First analyzed 14 May 2026· Updated 14 May 2026

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ebookjapan.jp

Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

13.159.6.238

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Tokyo, Japan

ASN

AS16509

Organization

AWS EC2 (ap-northeast-1)

Nameservers

ns-773.awsdns-32.net.ns-1488.awsdns-58.org.ns-1721.awsdns-23.co.uk.ns-47.awsdns-05.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

2.9 s10%

Speed Index

3.7 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.5 MB

250 requests

Image Optimization

Responsive

0–49

50–89

90–100

Architecture Stack

Hybrid

⚙️ SSR

Frontend

Framework

Nuxt.js

Infrastructure

Hosting

Amazon Web Services (AWS)

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

7 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel

Advertising

Google Ads Twitter Ads

Meta Frameworks

Nuxt.js

CSS Frameworks

Tailwind CSS

SEO Analysis

C62/100

Meta Tags12/15

Content8/12

Headings3/8

Technical20/25

E-E-A-T0/7

Images5/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile1/4

Indexability3/3

ebookjapan.jpebookjapan.jp

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【初回ログイン限定！6回使える最大70%OFFクーポン配布】漫画をお得に買うなら、無料で読むなら、品揃え日本最大級100万冊以上の電子書籍販売サイト「ebookjapan」！豊富な試し読み漫画に加え、1巻まるごと無料で読める漫画多数、割引・セールも毎日実施！新刊も続々入荷！

Title Length34 chars

Recommended: 50-60 chars (~210px / 580px)

Description Length137 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag — every page should have exactly one H1

10 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

36 URLs

robots.txt

27 rules

Sitemap reference found

Local SEO

Local Search Readiness

3/100

Poor

1 14 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

F34/100

Bot Access

20/25

Machine Read.

1/25

Schema Data

3/25

Citation

10/25

AI Bot Access

14/14 accessible

AI Search

OAI-SearchBot

PerplexityBot

Claude-SearchBot

Gemini-Deep-Research

DuckAssistBot

Training

GPTBot

ClaudeBot

Google-Extended

Meta-ExternalAgent

Bytespiderinfo

Amazonbot

Applebot-Extended

CCBotinfo

Fetch

ChatGPT-User

Machine Readability

llms.txt

llms-full.txt

Semantic HTML

Heading Hierarchy

Text ratio:1%

Words:238

Token eff.:Too Short

Structured Data

1 JSON-LD

WebSiteSearchAction

Citation Readiness

Opening Summary48w

Descriptive Headingsavg 1.4w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (12)

AI readiness recommendation preview...

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Sponsored

Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.

64/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

9/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

10/15

Verifies form fields have labels, error messages are clear, and inputs are properly associated.

Color & Contrast

15/15

Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.

Keyboard & Focus

9/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

1/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

3 recommendations

•Accessibility recommendation preview...

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Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.

54/100

156 mg

CO₂e / view

1.5 MB

Page Weight

60%

Cleaner Than

New Visitor

178 mg

Returning (cached)

89 mg

Annual (10K/mo)

18.7 kg

Emission Segments

Data Center

8 mg

Network

46 mg

Device

103 mg

Resource Breakdown

JavaScript

1.1 MB

Images

43.4 KB

CSS

95.0 KB

HTML

30.2 KB

Other

206.0 KB

Green Hosting Verified

Amazon Web Services (AWS)

Provider Match

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

80%Very Good

Interactive

HTTPS

No WAF

204d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Cybertrust Japan Co., Ltd.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

05.11.2025

Valid Until

04.12.2026

OCSP Stapling

Enabled

Subject Alternative Names (20)

edge01.yahoo.co.jp*.yahoo.co.jp*.yahooapis.jp*.ane.yahoo.co.jp*.auctions.yahoo.co.jp*.auctions.yahooapis.jp*.box.yahooapis.jp*.bylines.news.yahoo.co.jp+12 more

SHA-256 Fingerprint

E6:94:9F:F0:FE:BC:51:88:C0:DE:5B:52:8D:0D:47:40:36:C1:39:90...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

accept-ch

Sec-CH-UA-Full-Version-List, Sec-CH-UA-Model, Sec-CH-UA-Plat...

access-control-allow-origin

age

content-encoding

📦 Gzip(gzip)

content-security-policy

base-uri 'none'; font-src 'self' https: data:; form-action '...

content-type

text/html;charset=utf-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mta1.ebookjapan.jp

Domain Information

ebookjapan.jp

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.

67/100

Mobile Friendly3 breakpoints

Viewport Meta

The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.

Responsive Design

Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.

Touch Icons

Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.

Readable Font Size

Base font size should be at least 16px on mobile to ensure text is readable without zooming.

Relative Units

Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.

No H-Scroll Risk

No elements wider than the viewport that would cause horizontal scrolling on mobile devices.

Tap Targets OK

Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.

No Fixed Widths

No elements with fixed pixel widths that could overflow on smaller screens and break the layout.

Viewport

width=device-width, initial-scale=1, minimum-scale=1, user-scalable=no, viewport-fit=cover

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Hiragino Kaku Gothic ProN

WCAG Partial

55/100

Readability

/30

14/30

10px · LH 1.30

Hierarchy

/20

8/20

WCAG

/25

19/25

3.45:1 min contrast

Performance

/25

14/25

1 font

Heading Font

Hiragino Kaku Gothic ProN

Sans

Body Font

Hiragino Kaku Gothic ProN

Sans10px

Contrast Ratio

3.45:1

1 issue

Reading Comfort

Single Font Family

left aligned

26px

10px

❌ Critical: 10px body text is too small. Minimum 14px, recommend 16px+.

⚠️ Tight line spacing (1.30). Increase to 1.4–1.6 for better readability.

⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 3.5:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ Lean font stack: 1 font families keeps load times fast.

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFonts

Color Palette

8 unique colors

Light

#ffffff

Background· 63.20000000000001%

#b2e3f6

Primary· 6.4%

#ab7e62

Secondary· 6.4%

#9eb1b0

Secondary· 6%

#e3b68c

Accent· 5.5%

#7d3836

Secondary· 5.5%

#f6edbc

Accent· 1.3%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

12 Resources

Scripts

Styles

Async

Defer

Top Script Sources

s.yimg.jp(1)local(1)

Website Identity

ebookjapan.jp

Location detected: 🇯🇵 Japanvia tld

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Last analyzed: 14 May 2026 at 06:27

Historical Analysis & Change Tracking