Back to Search
duomusicexchange.com favicon

duomusicexchange.com

https://duomusicexchange.com· First analyzed 01 Jun 2026· Updated 01 Jun 2026
Export
duomusicexchange.com
Desktop screenshot of duomusicexchange.com
Mobile screenshot of duomusicexchange.com
Mobile

Sponsored

Hosting Provider

IDCFNet

IP Address

202.230.234.206

Site Location

🇯🇵 Japanvia ip

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS4694

Organization

IDCFNet

Server

Nginx

Nameservers

ns06.domainserver.ne.jp.ns05.domainserver.ne.jp.

Performance

94

Core Web Vitals

Weight

First Contentful Paint
1.2 s10%
Speed Index
1.6 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2 MB
49 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
Infrastructure
Hosting
IDCFNet

Technology Stack

9 Technologies Detected

CSS Frameworks

2
Bootstrapv4.5.2
Tailwind CSS

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
jQueryv3.5.1

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

Web Servers

1
Nginx

SEO Analysis

D51/100
14
7
2
Meta Tags8/15
Content8/12
Headings1/8
Technical13/25
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
D
duomusicexchange.comduomusicexchange.com

duo MUSIC EXCHANGE オフィシャルサイト｜東京・渋谷

東京渋谷・道玄坂のライブスペース「duo MUSIC EXCHANGE」オフィシャルサイト。

Title Length34 chars

Recommended: 50-60 chars (~214px / 580px)

Description Length46 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing H1 tag — every page should have exactly one H1
  • • Most images missing alt text (19/23) — critical for accessibility and SEO

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

50 URLs

robots.txt

Local SEO

Local Search Readiness

18/100
Poor
5 10 2

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

Sponsored

AI & LLM Readiness

F34/100
Bot Access
20/25
Machine Read.
5/25
Schema Data
0/25
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:8%
Words:206
Token eff.:Too Short
Sections/1K:14.6
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary24w
Descriptive Headingsavg 1w
Canonical URL
Open Graph3/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
AI readiness recommendation preview...
Upgrade to view recommendations

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.
B
75/100
10
Passed
4
Critical
0
Warnings
Images & Alt Text
15/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
15/20
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.
2 recommendations
  • •Accessibility recommendation preview...
Upgrade to view recommendations

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.
30/100
D
260 mg
CO₂e / view
2.0 MB
Page Weight
50%
Cleaner Than
New Visitor
297 mg
vs
Returning (cached)
148 mg
Annual (10K/mo)
31.2 kg
Emission Segments
Data Center
58 mg
Network
62 mg
Device
139 mg
Resource Breakdown
JavaScript
81.3 KB
Images
1.8 MB
CSS
119.2 KB
Fonts
1.7 KB
HTML
5.5 KB
Green Hosting Not Verified
IDCFNet
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
B

Security Score

71%Good
Static / Informational

HTTPS

No WAF

223d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

09.12.2025

Valid Until

10.01.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.duomusicexchange.comduomusicexchange.com

SHA-256 Fingerprint

5F:92:5E:C0:4C:3C:5F:0F:88:73:E6:AA:D9:7B:D6:4B:BD:1E:0E:3F...

Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

content-encoding
⚡ Brotli(br)
content-type
text/html
date
Mon, 01 Jun 2026 02:55:32 GMT
etag
W/"6a14269d-5465"
last-modified
Mon, 25 May 2026 10:38:21 GMT
server
nginx
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

90

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mxjp1.nospamcloud.com
mxjp2.nospamcloud.com

Domain Information

duomusicexchange.com

Domain Age
22y 6m

Created

27.11.2003

Expires

27.11.2026

Last Updated

29.11.2024

Registrar

InterNetX GmbH

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

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.
C
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
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

游ゴシック体

WCAG Fail
57/100
Readability
/30
20/30

13px · LH 1.50

Hierarchy
/20
17/20

3.08x ratio · ✓ H1→H6

WCAG
/25
11/25

1:1 min contrast

Performance
/25
9/25

3 fonts · 2 req

Heading Font

游ゴシック体

Sans40px

Body Font

游ゴシック体

Sans13px

Contrast Ratio

1:1

25 issues

Reading Comfort

~48 CPL

Optimal (45–75)
40px
h1
32px
h2
28px
h3
24px
h4
13px
p

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

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

✅ Optimal line length: ~48 chars/line (ideal 45–75 CPL).

❌ Low contrast: 25 elements fail WCAG AA (min 1.0:1). Increase text/background contrast.

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

✅ Strong hierarchy: Headlines are 3.1x larger than body text.

GGoogle FontsBuy on MyFontsFlesch 58

Color Palette

6 unique colors
18.1:1 AAA Dark
#161616
Text· 32%
#ffffff
Text· 18.5%
#eb6f1b
Primary· 14.3%
#d6a47b
Accent· 2.3%
#95552f
Accent· 1.5%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

Sponsored

Scripts & Styles

18 Resources

11
Scripts
7
Styles
4
Async
0
Defer

Top Script Sources

googletagmanager.com(3)js(3)google-analytics.com(1)code.jquery.com(1)cdn.jsdelivr.net(1)

Website Identity

duomusicexchange.com

0354598716
22 years old
Location detected: 🇯🇵 Japanvia ip
InterNetX GmbHja

Sponsored

Last analyzed: 01 Jun 2026 at 02:55

Historical Analysis & Change Tracking