kotsukaikan.co.jp

https://kotsukaikan.co.jp· First analyzed 01 Jun 2026· Updated 01 Jun 2026

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kotsukaikan.co.jp

Mobile

Sponsored

Hosting Provider

CPI

IP Address

150.60.146.127

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS9597

Organization

CPI

Server

Apache

Nameservers

ns4.mec.co.jp.ns1.mec.co.jp.ns2.mec.co.jp.ns3.mec.co.jp.

Performance

Core Web Vitals

Weight

First Contentful Paint

2.0 s10%

Speed Index

2.6 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

13 MB

134 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

kotsukaikan-v233Custom

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

16 Technologies Detected

Plugins

Wordpress Popular Posts

Easing Slider Responsive Lightbox Wp Pagenavi Style

Libraries

jQueryv3.4.1

Underscore.js Lightbox

CSS Frameworks

Analytics

UI Components

Icon Libraries

Fonts

Tag Managers

Web Servers

SEO Analysis

C64/100

Meta Tags5/15

Content11/12

Headings3/8

Technical21/25

E-E-A-T2/7

Images4/7

Links2/5

URL5/5

Social5/5

Freshness0/4

Mobile3/4

Indexability3/3

kotsukaikan.co.jpkotsukaikan.co.jp

東京交通会館 | 銀座・有楽町 - 展示会場・イベント・貸ホール・画廊貸スペース、アンテナショップ、パスポート - – パスポート、イ...

パスポート、イベントホール・画廊のレンタルスペース、グルメ、お食事、ショッピング

Title truncated.

Title Length100 chars

Recommended: 50-60 chars (~617px / 580px)

Description Length40 chars

Recommended: 120-160 chars

Issues (2)

• Title is too long (100 chars, ~617px). Will be truncated in search results.
• Missing H1 tag — every page should have exactly one H1

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

19 URLs

19 sub-sitemaps

robots.txt

5 rules

Sitemap reference found

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

D46/100

Bot Access

20/25

Machine Read.

11/25

Schema Data

6/25

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

nav

Text ratio:4%

Words:555

Token eff.:Optimal

Sections/1K:122.5

Depth:1/5

Structured Data

4 JSON-LD

Organization×1.1WebSiteBreadcrumbList

Citation Readiness

Opening Summary

Descriptive Headingsavg 3.2w

Canonical URL

Open Graph2/3

Twitter Card3/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (11)

AI readiness recommendation preview...

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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.

70/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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

5/15

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

11/15

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.

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.

11/100

1.64 g

CO₂e / view

13.0 MB

Page Weight

Cleaner Than

New Visitor

1.88 g

Returning (cached)

940 mg

Annual (10K/mo)

197.4 kg

Emission Segments

Data Center

367 mg

Network

395 mg

Device

883 mg

Resource Breakdown

JavaScript

206.4 KB

Images

8.1 MB

CSS

4.7 MB

Fonts

684 B

HTML

20.1 KB

Green Hosting Not Verified

CPI

8 recommendations

•Carbon footprint recommendation preview...

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Security Score

36%Critical

Interactive

HTTPS

No WAF

91d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Japan Registry Services Co., Ltd.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

31.07.2025

Valid Until

31.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.kotsukaikan.co.jpkotsukaikan.co.jp

SHA-256 Fingerprint

AB:A9:E9:A7:0C:7B:74:33:70:E8:90:5E:3E:D5:63:52:89:27:88:9C...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-encoding

📦 Gzip(gzip)

content-length

20251

content-type

text/html; charset=UTF-8

date

Mon, 01 Jun 2026 00:14:56 GMT

link

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

server

Apache

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

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

Domain Information

kotsukaikan.co.jp

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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.

70/100

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

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Hiragino Sans

WCAG AAA

75/100

Readability

/30

23/30

16px · LH 1.30

Hierarchy

/20

13/20

1x ratio · ✓ H1→H6

WCAG

/25

21/25

15.43:1 min contrast

Performance

/25

18/25

1 font · 2 req

Heading Font

Hiragino Sans

Sans16px

Body Font

Hiragino Sans

Sans16px

Contrast Ratio

15.43:1

WCAG AAA (≥7:1)

Reading Comfort

~39 CPL

Narrow lines

16px

22px

16px

Minor Second

Scale

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

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

✅ Easy to read: Flesch score 85/100 — accessible to general audiences.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 15.4:1).

✅ 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.

GGoogle Fonts Buy on MyFontsFlesch 85

Color Palette

9 unique colors

Light

#ffffff

Primary· 47.7%

#f19db7

Accent· 16.3%

#5e90b2

Secondary· 9.8%

#d13e4d

Accent· 6.4%

#39ab9a

Secondary· 5.4%

#e2ebe3

Secondary· 3.3%

#a57e94

Secondary· 2.5%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

kotsukaikan.co.jp(16)googletagmanager.com(2)d-cache.microad.jp(1)google-analytics.com(1)

Website Identity

東京交通会館 | 銀座・有楽町 - 展示会場・イベント・貸ホール・画廊貸スペース、アンテナショップ、パスポート -

Organization

パスポート、イベントホール・画廊のレンタルスペース、グルメ、お食事、ショッピング

www.kotsukaikan.co.jp/

Location detected: 🇯🇵 Japanvia tld

📧 Microsoft 365ja

Social Profiles

Instagram

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Last analyzed: 01 Jun 2026 at 00:16

Historical Analysis & Change Tracking