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kawasaki-sym-hall.jp

https://kawasaki-sym-hall.jp· First analyzed 29 May 2026· Updated 29 May 2026
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kawasaki-sym-hall.jp
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Hosting Provider

SAKURA-OSAKA

IP Address

133.167.16.145

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Osaka, Japan

ASN

AS9371

Organization

SAKURA-OSAKA

Server

Nginx

Nameservers

ns1.dns.ne.jp.ns2.dns.ne.jp.

Performance

91

Core Web Vitals

Weight

First Contentful Paint
1.4 s10%
Speed Index
1.8 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
5.5 MB
95 requests

Image Optimization

Lazy LoadWebP
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms

Technology Stack

6 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
jQueryv3.6.1

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Web Servers

1
Nginx

SEO Analysis

C62/100
18
8
1
Meta Tags5/15
Content11/12
Headings3/8
Technical19/25
E-E-A-T0/7
Images6/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile1/4
Indexability3/3
K
kawasaki-sym-hall.jpkawasaki-sym-hall.jp

トップ｜ミューザ川崎シンフォニーホール

ミューザ川崎シンフォニーホールは、「音楽のまち・かわさき」を目指す新しいコンサートホールです。

Title Length19 chars

Recommended: 50-60 chars (~117px / 580px)

Description Length47 chars

Recommended: 120-160 chars

Issues (1)

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

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

329 URLs

robots.txt

3 rules

Local SEO

Local Search Readiness

11/100
Poor
3 12 2

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

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AI & LLM Readiness

D46/100
Bot Access
20/25
Machine Read.
13/25
Schema Data
0/25
Citation
13/25

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
navheader/footer
Text ratio:7%
Words:555
Token eff.:Optimal
Sections/1K:72.1
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary280w
Descriptive Headingsavg 1.4w
Canonical URL
Open Graph3/3
Twitter Card2/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (8)
AI readiness recommendation preview...
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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.
A
86/100
14
Passed
1
Critical
2
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
20/20
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
7/15
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.
14/100
F
693 mg
CO₂e / view
5.5 MB
Page Weight
5%
Cleaner Than
New Visitor
792 mg
vs
Returning (cached)
396 mg
Annual (10K/mo)
83.2 kg
Emission Segments
Data Center
155 mg
Network
166 mg
Device
372 mg
Resource Breakdown
JavaScript
152.8 KB
Images
5.1 MB
CSS
132.6 KB
Fonts
736 B
HTML
39.6 KB
Other
24.8 KB
Green Hosting Not Verified
SAKURA-OSAKA
9 recommendations
  • •Carbon footprint recommendation preview...
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F

Security Score

21%Critical
Interactive

HTTPS

No WAF

101d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

07.08.2025

Valid Until

08.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.kawasaki-sym-hall.jpkawasaki-sym-hall.jp

SHA-256 Fingerprint

74:28:C9:27:FD:A4:2C:99:D4:8C:7C:58:87:4C:F1:DE:1B:5C:02:E9...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

content-type
text/html; charset=UTF-8
date
Fri, 29 May 2026 13:46:13 GMT
server
nginx
Good Warning Issue

Email Infrastructure

Google Workspace

Score

90

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

aspmx.l.google.com
alt3.aspmx.l.google.com
alt2.aspmx.l.google.com
alt1.aspmx.l.google.com

+1 more

Domain Information

kawasaki-sym-hall.jp

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Privacy policy page linked

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
64/100
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
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

游ゴシック体

WCAG AA
68/100
Readability
/30
24/30

14px · LH 1.60

Hierarchy
/20
14/20

2x ratio

WCAG
/25
15/25

4.51:1 min contrast

Performance
/25
15/25

1 font · 1 req

Heading Font

游ゴシック体

Sans28px

Body Font

游ゴシック体

Sans14px

Contrast Ratio

4.51:1

WCAG AA (≥4.5:1)

Reading Comfort

~34 CPL

Narrow lines
28px
h1
30px
h2
26px
h3
12px
h4
14px
p

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

✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

✅ Easy to read: Flesch score 79/100 — accessible to general audiences.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.5:1).

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

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

GGoogle FontsBuy on MyFontsFlesch 79

Color Palette

10 unique colors
19.37:1 AAA Light
#ffffff
Background· 48.1%
#0f0d0e
Text· 7.8%
#cb839e
Primary· 6.8%
#e0b2b8
Secondary· 6.2%
#e8e1de
Secondary· 6.1%
#bbc7cb
Border· 5%
#392625
Secondary· 4.7%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

30 Resources

20
Scripts
10
Styles
7
Async
2
Defer

Top Script Sources

local(10)cse.google.com(4)googletagmanager.com(2)google.com(2)google-analytics.com(1)

Website Identity

kawasaki-sym-hall.jp

〒212-8557神奈川県川崎市幸区大宮町1310

Location detected: 🇯🇵 Japanvia tld
📧 Google Workspaceja

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Last analyzed: 29 May 2026 at 13:46

Historical Analysis & Change Tracking