cottonclubjapan.co.jp

https://cottonclubjapan.co.jp· First analyzed 21 May 2026· Updated 21 May 2026

Export

Mobile

Sponsored

Hosting Provider

BroadBand Tower, Inc.

IP Address

211.14.17.218

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS9607

Organization

BroadBand Tower, Inc.

Server

Nginx

Nameservers

dns2.sendmail.ne.jp.dns.sendmail.ne.jp.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.2 s10%

Speed Index

1.5 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

264 KB

28 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

BroadBand Tower, Inc.

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

9 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel

Icon Libraries

Font Awesome Material Icons

Fonts

Tag Managers

Advertising

Web Servers

SEO Analysis

F38/100

Meta Tags8/15

Content0/12

Headings0/8

Technical11/21

E-E-A-T0/7

Images1/7

Links2/5

URL5/5

Social4/5

Freshness0/4

Mobile4/4

Indexability3/3

cottonclubjapan.co.jpcottonclubjapan.co.jp

東京・丸の内ライブ・レストラン | COTTON CLUB

東京、丸の内にあるライブレストランCOTTON CLUBでは、最新のライブ・スケジュール、予約方法・アクセス情報などをご覧いただけます

Title Length30 chars

Recommended: 50-60 chars (~189px / 580px)

Description Length67 chars

Recommended: 120-160 chars

Issues (3)

• Very thin content (18 words). Search engines need substantial content for ranking.
• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (2/2) — critical for accessibility and SEO

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

45 URLs

robots.txt

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

F26/100

Bot Access

20/25

Machine Read.

1/25

Schema Data

0/25

Citation

5/25

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:13

Token eff.:Too Short

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph3/3

Twitter Card1/3

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.

51/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

6/20

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

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.

50/100

A+

33 mg

CO₂e / view

264.2 KB

Page Weight

95%

Cleaner Than

New Visitor

37 mg

Returning (cached)

19 mg

Annual (10K/mo)

3.9 kg

Emission Segments

Data Center

7 mg

Network

8 mg

Device

18 mg

Resource Breakdown

JavaScript

144.3 KB

Images

7.6 KB

CSS

74.8 KB

Fonts

33.3 KB

HTML

4.2 KB

Green Hosting Not Verified

BroadBand Tower, Inc.

5 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

71%Good

Static / Informational

HTTPS

No WAF

131d

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/1.1

Valid From

18.09.2025

Valid Until

30.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.cottonclubjapan.co.jpcottonclubjapan.co.jp

SHA-256 Fingerprint

57:44:F9:DC:50:1B:BE:95:E2:6F:74:C7:20:CF:06:DF:4F:5F:4A:D7...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

connection

keep-alive

content-length

3972

content-type

text/html

date

Thu, 21 May 2026 23:40:19 GMT

etag

"106245-f84-6143d48405480"

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

sbasp02.sendmail.ne.jp

sbasp01.sendmail.ne.jp

Domain Information

cottonclubjapan.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.

62/100

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, shrink-to-fit=no

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

ヒラギノ角ゴ Pro W3

WCAG Fail

59/100

Readability

/30

16/30

12px · LH 1.50

Hierarchy

/20

10/20

WCAG

/25

15/25

1:1 min contrast

Performance

/25

18/25

1 font · 2 req

Heading Font

ヒラギノ角ゴ Pro W3

Body Font

ヒラギノ角ゴ Pro W3

Sans12px

Contrast Ratio

1:1

1 issue

Reading Comfort

Single Family

center aligned

❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

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

❌ Low contrast: 1 elements fail WCAG AA (min 1.0:1). Increase text/background contrast.

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

✅ Smart font loading: font-display: swap prevents invisible text during load (FOIT).

GGoogle Fonts Buy on MyFonts

Color Palette

8 unique colors

21:1 AAA Dark

#000000

Background· 98.99999999999999%

#ffffff

Background· 0.2%

#2c0004

Primary· 0%

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Twitter/X AdsMid-Market

Ad platforms and retargeting pixels

Social Media

Facebook SDKFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

14 Resources

Scripts

Styles

Async

Defer

Top Script Sources

connect.facebook.net(3)googletagmanager.com(2)static.ads-twitter.com(1)local(1)s.yimg.jp(1)

Website Identity