genkosha.co.jp

https://genkosha.co.jp· First analyzed 15 May 2026· Updated 15 May 2026

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genkosha.co.jp

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

CDN

Nameservers

ns1.value-domain.com.ns2.value-domain.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.0 s10%

Speed Index

1.3 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

15 MB

127 requests

Image Optimization

Responsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Sony Network Communications Inc.

CDN

Progressive Web App

Web Manifest

Technology Stack

9 Technologies Detected

Analytics

Libraries

UI Components

CSS Frameworks

Fonts

Adobe Fonts (Typekit)

Tag Managers

Google Tag Manager

Web Servers

Nginxv1.28.0

Languages

PHPv8.4.19

SEO Analysis

C61/100

Meta Tags5/15

Content10/12

Headings3/8

Technical17/25

E-E-A-T0/7

Images4/7

Links5/5

URL5/5

Social3/5

Freshness2/4

Mobile4/4

Indexability3/3

genkosha.co.jpgenkosha.co.jp

株式会社玄光社

Title Length7 chars

Recommended: 50-60 chars (~43px / 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

2,722 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.

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AI & LLM Readiness

F36/100

Bot Access

12/25

Machine Read.

11/25

Schema Data

0/25

Citation

13/25

AI Bot Access

6/14 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

nav

Text ratio:5%

Words:447

Token eff.:Optimal

Sections/1K:17.9

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary203w

Descriptive Headingsavg 1w

Canonical URL

Open Graph2/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (11)

AI readiness recommendation preview...

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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.

71/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

18/20

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

7/15

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.

9/100

1.90 g

CO₂e / view

15.0 MB

Page Weight

Cleaner Than

New Visitor

2.17 g

Returning (cached)

1.08 g

Annual (10K/mo)

227.7 kg

Emission Segments

Data Center

424 mg

Network

455 mg

Device

1.02 g

Resource Breakdown

JavaScript

325.6 KB

Images

10.9 MB

CSS

3.7 MB

HTML

86.3 KB

Green Hosting Not Verified

Sony Network Communications Inc.

9 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

240d

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

11.12.2025

Valid Until

10.01.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.genkosha.co.jpgenkosha.co.jp

SHA-256 Fingerprint

33:84:50:A1:8B:C4:D3:13:78:FA:92:D4:31:75:9E:04:58:C1:18:3F...

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

Fri, 15 May 2026 16:28:01 GMT

expires

-1

pragma

no-cache

server

nginx/1.28.0

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

genkosha-co-jp.mail.protection.outlook.com

Domain Information

genkosha.co.jp

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

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.

60/100

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

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

dm-sans

WCAG Partial

58/100

Readability

/30

16/30

13px · LH 1.60

Hierarchy

/20

12/20

1.15x ratio · ✓ H1→H6

WCAG

/25

14/25

1.05:1 min contrast

Performance

/25

16/25

1 font

Heading Font

dm-sans

Sans15px

Body Font

dm-sans

Sans13px

Contrast Ratio

1.05:1

12 issues

Reading Comfort

~42 CPL

Narrow lines

15px

34px

40px

13px

Major Sixth

Scale

❌ Critical: 13px body text is too small. Minimum 14px, recommend 16px+.

✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

⚠️ Partial contrast: 12 elements below WCAG AA threshold (min 1.1:1).

✅ 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.

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

AAdobe Fonts Buy on MyFonts

Color Palette

8 unique colors

4.07:1 AA Large Light

#f9f9f9

Background· 43.7%

#807973

Other· 6.3%

#dbdfe4

Primary· 16.4%

#521b2b

Secondary· 9.6%

#b18f87

Secondary· 6.8%

#d6cec9

Border· 4.6%

#b6c2b5

Secondary· 3.2%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

25 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(7)googletagmanager.com(6)dmp.im-apps.net(2)cdn.webpush.jp(2)sync.im-apps.net(1)

Website Identity

genkosha.co.jp

Location detected: 🇯🇵 Japanvia tld

📧 Microsoft 365ja

Social Profiles

Facebook X (Twitter)Instagram TikTok Threads

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Last analyzed: 15 May 2026 at 16:28

Historical Analysis & Change Tracking