centralkougei.co.jp

https://centralkougei.co.jp· First analyzed 24 May 2026· Updated 24 May 2026

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centralkougei.co.jp

Mobile

Sponsored

Hosting Provider

IDC Frontier Inc.

IP Address

164.46.116.105

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS4694

Organization

IDC Frontier Inc.

Server

Apache

Nameservers

ns-17.awsdns-02.com.ns-658.awsdns-18.net.ns-1029.awsdns-00.org.ns-1657.awsdns-15.co.uk.

Performance

Core Web Vitals

Weight

First Contentful Paint

2.2 s10%

Speed Index

2.8 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

4.5 MB

60 requests

Image Optimization

Responsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.5.8

cms

Technology Stack

13 Technologies Detected

Plugins

Instagram Feed

All in One SEO

Contact Form 7

Contact Form 7 Multi Step Module

Analytics

Libraries

UI Components

CSS Frameworks

Icon Libraries

Fonts

Web Servers

SEO Analysis

B73/100

Meta Tags8/15

Content12/12

Headings3/8

Technical20/21

E-E-A-T2/7

Images5/7

Links2/5

URL5/5

Social5/5

Freshness4/4

Mobile4/4

Indexability3/3

centralkougei.co.jpcentralkougei.co.jp

トップページ - 什器製造・内装工事ならセントラル工芸株式会社

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Title Length31 chars

Recommended: 50-60 chars (~192px / 580px)

Description Length55 chars

Recommended: 120-160 chars

Issues (1)

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

7 issues found

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Local SEO

Local Search Readiness

17/100

Poor

5 12

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

Sponsored

AI & LLM Readiness

D54/100

Bot Access

20/25

Machine Read.

14/25

Schema Data

6/25

Citation

14/25

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

navheader/footer

Text ratio:32%

Words:4,975

Token eff.:Good

Sections/1K:4.8

Depth:2/5

Structured Data

4 JSON-LD

Organization×1.1WebSiteBreadcrumbList

Citation Readiness

Opening Summary324w

Descriptive Headingsavg 3.5w

Canonical URL

Open Graph2/3

Twitter Card3/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (8)

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.

83/100

Passed

Critical

Warnings

Images & Alt Text

18/20

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

Semantic Structure

20/20

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

Forms & Inputs

15/15

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

6/15

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

1 recommendation

•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.

11/100

564 mg

CO₂e / view

4.5 MB

Page Weight

15%

Cleaner Than

New Visitor

645 mg

Returning (cached)

322 mg

Annual (10K/mo)

67.7 kg

Emission Segments

Data Center

126 mg

Network

135 mg

Device

303 mg

Resource Breakdown

JavaScript

264.7 KB

Images

3.7 MB

CSS

393.2 KB

Fonts

751 B

HTML

109.2 KB

Green Hosting Not Verified

IDC Frontier Inc.

8 recommendations

•Carbon footprint recommendation preview...

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Security Score

81%Very Good

Static / Informational

HTTPS

No WAF

273d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

22.02.2026

Valid Until

21.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (1)

centralkougei.co.jp

SHA-256 Fingerprint

1A:16:2D:09:4E:F3:FE:33:39:58:A8:2C:74:1B:9B:17:2D:91:2E:8E...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

connection

Keep-Alive

content-type

text/html; charset=UTF-8

date

Sun, 24 May 2026 06:21:13 GMT

keep-alive

timeout=2, max=300

link

<https://centralkougei.co.jp/wp-json/>; rel="https://api.w.o...

server

Apache

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

centralkougei.co.jp

Domain Information

centralkougei.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.

67/100

Mobile Friendly2 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=1.0

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Hiragino Kaku Gothic ProN

WCAG Partial

71/100

Readability

/30

18/30

16px · LH 1.50

Hierarchy

/20

16/20

1.87x ratio · ✓ H1→H6

WCAG

/25

17/25

1:1 min contrast

Performance

/25

20/25

2 fonts · 1 req

Heading Font

Hiragino Kaku Gothic ProN

Sans30px

Body Font

Hiragino Kaku Gothic ProN

Sans16px

Contrast Ratio

1:1

15 issues

Reading Comfort

~516 CPL

Too wide

30px

43px

26px

16px

Minor Second

Scale

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

❌ Very long lines: ~516 chars/line causes eye strain. Add max-width constraint.

⚠️ Hard to read: Flesch score 38/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 15 elements below WCAG AA threshold (min 1.0:1).

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

GGoogle Fonts Buy on MyFontsFluid Type (rem)Flesch 38

Color Palette

9 unique colors

Light

#f6f6f6

Text· 22.2%

#210b0f

Primary· 25%

#8c6c6a

Secondary· 17.3%

#7c5a54

Secondary· 9%

#764432

Secondary· 6.7%

#4d2e2a

Secondary· 5.1%

#c3b7b4

Secondary· 1.4%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

25 Resources

Scripts

Styles

Async

Defer

Top Script Sources

centralkougei.co.jp(12)googletagmanager.com(1)ajax.googleapis.com(1)unpkg.com(1)

Website Identity

什器製造・内装工事ならセントラル工芸株式会社

Organization

Découvrez les meilleures stratégies de jeu en ligne grâ

centralkougei.co.jp/

Location detected: 🇯🇵 Japanvia tld

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Last analyzed: 24 May 2026 at 06:22

Historical Analysis & Change Tracking