maruzen-publishing.co.jp

https://maruzen-publishing.co.jp· First analyzed 20 May 2026· Updated 20 May 2026

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Mobile

Sponsored

Hosting Provider

Sony Network Communications Inc.

IP Address

182.169.74.66

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Tokyo, Japan

ASN

AS2527

Organization

Sony Network Communications Inc.

Server

Nginx

Nameservers

dns103-2.uk1.ecl.ntt.com.dns103-3.us1.ecl.ntt.com.dns103-4.sg1.ecl.ntt.com.dns103-1.jp1.ecl.ntt.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.4 s10%

Speed Index

1.8 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

894 KB

72 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Sony Network Communications Inc.

Technology Stack

7 Technologies Detected

Analytics

Libraries

UI Components

CSS Frameworks

Fonts

Web Servers

SEO Analysis

C60/100

Meta Tags5/15

Content12/12

Headings3/8

Technical17/25

E-E-A-T0/7

Images4/7

Links5/5

URL5/5

Social2/5

Freshness0/4

Mobile4/4

Indexability3/3

maruzen-publishing.co.jpmaruzen-publishing.co.jp

丸善出版理工・医学・人文社会科学の専門書出版社

Title Length24 chars

Recommended: 50-60 chars (~148px / 580px)

Description Length2 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

16,969 URLs

robots.txt

56 rules

Local SEO

Local Search Readiness

6/100

Poor

2 13 2

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

Sponsored

AI & LLM Readiness

D40/100

Bot Access

20/25

Machine Read.

11/25

Schema Data

0/25

Citation

9/25

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:15%

Words:2,575

Token eff.:Optimal

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph1/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

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.

69/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

14/20

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

Forms & Inputs

2/15

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

9/15

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

2 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.

30/100

111 mg

CO₂e / view

893.7 KB

Page Weight

80%

Cleaner Than

New Visitor

126 mg

Returning (cached)

63 mg

Annual (10K/mo)

13.3 kg

Emission Segments

Data Center

25 mg

Network

27 mg

Device

59 mg

Resource Breakdown

JavaScript

280.3 KB

Images

186.3 KB

CSS

81.7 KB

Fonts

59.2 KB

HTML

286.2 KB

Green Hosting Not Verified

Sony Network Communications Inc.

6 recommendations

•Carbon footprint recommendation preview...

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Security Score

36%Critical

Interactive

HTTPS

No WAF

320d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Nijimo, Inc.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

06.03.2026

Valid Until

05.04.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.maruzen-publishing.co.jpmaruzen-publishing.co.jp

SHA-256 Fingerprint

79:C2:0C:DE:BB:23:11:7A:53:C0:9C:C6:AF:CB:2F:39:23:20:AC:EC...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔵 Public(public)

content-type

text/html; charset=utf-8

date

Wed, 20 May 2026 18:30:56 GMT

expires

-1

pragma

no-cache

server

nginx

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

maruzen-publishing.co.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.

47/100

Not Mobile Friendly1 breakpoint

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=1.0

4 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

-apple-system

WCAG Partial

66/100

Readability

/30

17/30

15px · LH 1.20

Hierarchy

/20

10/20

1x ratio · ✓ H1→H6

WCAG

/25

17/25

2.81:1 min contrast

Performance

/25

22/25

System fonts

Heading Font

-apple-system

Sans15px

Body Font

-apple-system

Sans15px

Contrast Ratio

2.81:1

6 issues

Reading Comfort

Single Font Family

left aligned

15px

26px

15px

Perfect Fourth

Scale

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

⚠️ Tight line spacing (1.20). Increase to 1.4–1.6 for better readability.

⚠️ Partial contrast: 6 elements below WCAG AA threshold (min 2.8:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

✅ System fonts: Zero font loading delay — best possible LCP impact.

GGoogle FontsFlesch 61

Color Palette

13 unique colors

21:1 AAA Light

#ffffff

Background· 60.7%

#000000

Text· 7.6%

#2e5590

Primary· 8.2%

#d7f3eb

Accent· 5.3%

#0e1317

Secondary· 4.1%

#fef26b

Accent· 3.2%

#82c8cf

Secondary· 3.1%

#72908e

Secondary· 2.8%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

13 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(5)googletagmanager.com(2)

Website Identity