rittor-music.co.jp

https://rittor-music.co.jp· First analyzed 08 May 2026· Updated 08 May 2026

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rittor-music.co.jp

Mobile

Sponsored

Hosting Provider

Impress Touch, Inc.

IP Address

203.183.234.87

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS4694

Organization

Impress Touch, Inc.

Server

Apache

Nameservers

ns-907.awsdns-49.net.ns-1223.awsdns-24.org.ns-13.awsdns-01.com.ns-1894.awsdns-44.co.uk.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.0 s10%

Speed Index

1.3 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.5 MB

97 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Impress Touch, Inc.

Technology Stack

6 Technologies Detected

Analytics

CSS Frameworks

Tag Managers

Web Servers

SEO Analysis

C65/100

Meta Tags7/15

Content8/12

Headings3/8

Technical22/25

E-E-A-T2/7

Images4/7

Links5/5

URL5/5

Social5/5

Freshness0/4

Mobile1/4

Indexability3/3

rittor-music.co.jprittor-music.co.jp

リットーミュージック

音楽専門出版社リットーミュージックの公式サイト。楽器や音楽に関する専門雑誌、書籍、楽譜・スコア、教本、教則DVDなどを中心に紹介。初心者からプロまで、音楽ライフをサポートします。

Title Length10 chars

Recommended: 50-60 chars (~62px / 580px)

Description Length89 chars

Recommended: 120-160 chars

Issues (1)

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

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

8 URLs

8 sub-sitemaps

robots.txt

7 rules

Sitemap reference found

Local SEO

Local Search Readiness

12/100

Poor

3 14

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

Sponsored

AI & LLM Readiness

D43/100

Bot Access

20/25

Machine Read.

4/25

Schema Data

7/25

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.txt

llms-full.txt

Semantic HTML

Heading Hierarchy

def. listsnav

Text ratio:2%

Words:268

Token eff.:Too Short

Sections/1K:48.5

Depth:2/5

Structured Data

2 JSON-LD

Organization×1.1WebSiteSearchAction

sameAs entity links

Citation Readiness

Opening Summary12w

Descriptive Headingsavg 1.2w

Canonical URL

Open Graph3/3

Twitter Card3/3

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.

80/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

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.

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.

29/100

196 mg

CO₂e / view

1.5 MB

Page Weight

60%

Cleaner Than

New Visitor

224 mg

Returning (cached)

112 mg

Annual (10K/mo)

23.5 kg

Emission Segments

Data Center

44 mg

Network

47 mg

Device

105 mg

Resource Breakdown

JavaScript

775.7 KB

Images

347.8 KB

CSS

294.3 KB

HTML

61.2 KB

Other

107.9 KB

Green Hosting Not Verified

Impress Touch, Inc.

7 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

53d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Cybertrust Japan Co., Ltd.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

02.06.2025

Valid Until

30.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.rittor-music.co.jprittor-music.co.jp

SHA-256 Fingerprint

89:24:B8:6E:6C:73:58:85:5A:8B:B2:5C:B6:E0:8C:F6:EE:E0:16:37...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-type

text/html; charset=UTF-8

date

Fri, 08 May 2026 06:24:43 GMT

server

Apache

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

alt4.aspmx.l.google.com

alt1.aspmx.l.google.com

aspmx.l.google.com

alt3.aspmx.l.google.com

+1 more

Domain Information

rittor-music.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.

58/100

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=1.0,viewport-fit=cover

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

-apple-system

WCAG Partial

62/100

Readability

/30

17/30

14px · LH 1.75

Hierarchy

/20

8/20

WCAG

/25

17/25

1:1 min contrast

Performance

/25

20/25

System fonts

Heading Font

-apple-system

Sans

Body Font

-apple-system

Sans14px

Contrast Ratio

1:1

28 issues

Reading Comfort

~43 CPL

Narrow lines

24px

14px

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

⚠️ Partial contrast: 28 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ System fonts: Zero font loading delay — best possible LCP impact.

Flesch 64

Color Palette

10 unique colors

21:1 AAA Light

#ffffff

Background· 34.800000000000004%

#000000

Background· 28.300000000000004%

#01afec

Primary· 10.7%

#ebe6e2

Secondary· 6.6%

#a21a2b

Accent· 5.6%

#1fb6e7

Accent· 5.3%

#a4d0df

Secondary· 3.8%

#765558

Secondary· 3%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

20 Resources

Scripts

Styles

Async

Defer

Top Script Sources

log1.mobylog.jp(5)cse.google.com(3)local(3)connect.facebook.net(2)googletagmanager.com(2)

Website Identity

リットーミュージック

Organization

www.rittor-music.co.jp/

Location detected: 🇯🇵 Japanvia tld

📧 Google Workspaceja

Social Profiles

Facebook X (Twitter)Instagram YouTube

Sponsored

Last analyzed: 08 May 2026 at 06:25

Historical Analysis & Change Tracking