bluenote.co.jp

https://bluenote.co.jp· First analyzed 10 May 2026· Updated 10 May 2026

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bluenote.co.jp

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.

CDN

Nameservers

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

Performance

Core Web Vitals

Weight

First Contentful Paint

2.2 s10%

Speed Index

2.9 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

8.9 MB

250 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

BroadBand Tower, Inc.

CDN

Technology Stack

7 Technologies Detected

Analytics

CSS Frameworks

Tag Managers

Advertising

Languages

SEO Analysis

D50/100

Meta Tags7/15

Content12/12

Headings1/8

Technical12/25

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social3/5

Freshness0/4

Mobile1/4

Indexability3/3

bluenote.co.jpbluenote.co.jp

BLUE NOTE TOKYO

Official website of BLUE NOTE TOKYO, a jazz club in Minami-Aoyama, Tokyo.

Title Length15 chars

Recommended: 50-60 chars (~101px / 580px)

Description Length73 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (219/314) — critical for accessibility and SEO

13 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

3,305 URLs

robots.txt

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

D47/100

Bot Access

20/25

Machine Read.

15/25

Schema Data

0/25

Citation

12/25

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.txtinvalid

llms-full.txt

Semantic HTML

Heading Hierarchy

nav

Text ratio:13%

Words:2,175

Token eff.:Optimal

Sections/1K:8.3

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary21w

Descriptive Headings

Canonical URL

Open Graph3/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (9)

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.

68/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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

Semantic Structure

13/20

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.

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.

2/100

1.13 g

CO₂e / view

8.9 MB

Page Weight

Cleaner Than

New Visitor

1.29 g

Returning (cached)

646 mg

Annual (10K/mo)

135.6 kg

Emission Segments

Data Center

252 mg

Network

271 mg

Device

606 mg

Resource Breakdown

JavaScript

474.1 KB

Images

8.3 MB

CSS

97.3 KB

HTML

81.9 KB

Green Hosting Not Verified

BroadBand Tower, Inc.

9 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

71%Good

Static / Informational

HTTPS

No WAF

174d

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

16.10.2025

Valid Until

31.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.bluenote.co.jpbluenote.co.jp

SHA-256 Fingerprint

82:50:B7:AC:5B:3F:03:CA:69:60:87:55:6E:48:97:03:B6:EE:16:45...

Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-headers

origin, x-requested-with, content-type

access-control-allow-methods

PUT, GET, POST, DELETE, OPTIONS

access-control-allow-origin

content-type

text/html

date

Sun, 10 May 2026 05:38:37 GMT

via

JSTCDN

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

mgc.cybermail.jp

Domain Information

bluenote.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.

42/100

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=1024

3 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

ヒラギノ角ゴ Pro W3

WCAG Partial

50/100

Readability

/30

13/30

10px · LH 1.50

Hierarchy

/20

9/20

1.2x ratio

WCAG

/25

14/25

1:1 min contrast

Performance

/25

14/25

1 font

Heading Font

ヒラギノ角ゴ Pro W3

Sans12px

Body Font

ヒラギノ角ゴ Pro W3

Sans10px

Contrast Ratio

1:1

18 issues

Reading Comfort

~79 CPL

Wide lines

12px

10px

Minor Second

Scale

❌ Critical: 10px body text is too small. Minimum 14px, recommend 16px+.

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

⚠️ Wide lines: ~79 chars/line. Use max-width: 65ch for comfortable reading.

⚠️ Partial contrast: 18 elements below WCAG AA threshold (min 1.0:1).

⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

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

Buy on MyFontsFlesch 52

Color Palette

10 unique colors

21:1 AAA Dark

#000000

Background· 38%

#ffffff

Background· 15.899999999999999%

#534740

Secondary· 7.3%

#1f1612

Primary· 6.9%

#1b314a

Secondary· 6.7%

#401c25

Secondary· 6.7%

#a39382

Secondary· 6.5%

#85614b

Secondary· 5.6%

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Social Media

Twitter/X WidgetsFree

Facebook SDKFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

26 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(6)googletagmanager.com(4)platform.twitter.com(2)connect.facebook.net(2)d.line-scdn.net(1)

Website Identity

bluenote.co.jp

Location detected: 🇯🇵 Japanvia tld

Social Profiles

Facebook X (Twitter)Instagram YouTube TikTok

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Last analyzed: 10 May 2026 at 05:39

Historical Analysis & Change Tracking