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kamitsubaki.jp

https://kamitsubaki.jp· First analyzed 31 May 2026· Updated 31 May 2026
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kamitsubaki.jp
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Hosting Provider

HETEML

IP Address

157.7.189.209

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS7506

Organization

HETEML

Server

Apache

Nameservers

02.dnsv.jp.03.dnsv.jp.04.dnsv.jp.01.dnsv.jp.

Performance

97

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%
1.8 MB
67 requests

Image Optimization

WebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.8.5
cms
KAMITSUBAKI STUDIOv1.0Custom
by KAMITSUBAKI STUDIO
View Theme

Technology Stack

9 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
jQueryv3.2.1

Fonts

1
Adobe Fonts (Typekit)

Tag Managers

1
Google Tag Manager

Web Servers

1
Apache

Languages

1
PHPv8.3.31

Security

1
reCAPTCHA

Plugins

1
Contact Form 7

SEO Analysis

C64/100
20
4
1
Meta Tags8/15
Content8/12
Headings3/8
Technical19/25
E-E-A-T0/7
Images5/7
Links4/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
K
kamitsubaki.jpkamitsubaki.jp

KAMITSUBAKI STUDIO

「KAMITSUBAKI STUDIO」は、多種多様な次世代のクリエイター達と共にネットカルチャーの最先端を産み出す、YouTube発のクリエイティブレーベルであり、新時代のアーティストマネジメントです。

Title Length18 chars

Recommended: 50-60 chars (~110px / 580px)

Description Length102 chars

Recommended: 120-160 chars

Issues (1)

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

5 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

17 URLs

17 sub-sitemaps

robots.txt

2 rules

Allows all crawlers

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

F34/100
Bot Access
20/25
Machine Read.
6/25
Schema Data
0/25
Citation
8/25

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. listsnavheader/footer
Text ratio:2%
Words:280
Token eff.:Too Short
Sections/1K:39.3
Depth:3/5

Structured Data

No Schema

Citation Readiness

Opening Summary
Descriptive Headingsavg 1.4w
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
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.
B
77/100
10
Passed
3
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
17/20
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.
1 recommendation
  • •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.
29/100
D
225 mg
CO₂e / view
1.8 MB
Page Weight
60%
Cleaner Than
New Visitor
257 mg
vs
Returning (cached)
128 mg
Annual (10K/mo)
26.9 kg
Emission Segments
Data Center
50 mg
Network
54 mg
Device
121 mg
Resource Breakdown
JavaScript
263.5 KB
Images
623.7 KB
CSS
899.1 KB
HTML
29.1 KB
Green Hosting Not Verified
HETEML
6 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
B

Security Score

71%Good
Static / Informational

HTTPS

No WAF

34d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

06.04.2026

Valid Until

05.07.2026

Subject Alternative Names (20)

adlp.kamitsubaki.jpaudition.kamitsubaki.jpcoko.kamitsubaki.jpensemble-stg.kamitsubaki.jpensemble.kamitsubaki.jpfukakai2.kamitsubaki.jpfukakai3.kamitsubaki.jpharu.kamitsubaki.jp+12 more

SHA-256 Fingerprint

9C:2F:EE:2E:97:BD:08:99:58:6A:8F:77:73:4C:B1:A7:B8:01:D0:20...

Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges
none
content-encoding
📦 Gzip(gzip)
content-length
29513
content-type
text/html; charset=UTF-8
date
Sun, 31 May 2026 17:33:29 GMT
link
<https://kamitsubaki.jp/wp-json/>; rel="https://api.w.org/"
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

65

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (3)

mx.hetemail.jp
mail005.heteml.jp
mail004.heteml.jp

Domain Information

kamitsubaki.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
68/100
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,shrink-to-fit=no
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Helvetica Neue

WCAG Partial
54/100
Readability
/30
11/30

10px · LH 1.80

Hierarchy
/20
15/20

1x ratio · ✓ H1→H6

WCAG
/25
15/25

1:1 min contrast

Performance
/25
13/25

System fonts

Heading Font

Helvetica Neue

Sans10px

Body Font

Helvetica Neue

Sans10px

Contrast Ratio

1:1

16 issues

Reading Comfort

Single Font Family

left aligned
10px
h1
10px
h2
10px
h3
14px
h4

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

❌ Very complex text: Flesch score 18/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 16 elements below WCAG AA threshold (min 1.0:1).

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

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

✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

AAdobe FontsFluid Type (rem)Flesch 18

Color Palette

8 unique colors
19.91:1 AAA Light
#ffffff
Background· 91.7%
#090909
Text· 1.2%

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

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Scripts & Styles

18 Resources

15
Scripts
3
Styles
4
Async
0
Defer

Top Script Sources

kamitsubaki.jp(8)googletagmanager.com(2)gstatic.com(1)use.typekit.net(1)ajax.googleapis.com(1)

Website Identity

kamitsubaki.jp

Location detected: 🇯🇵 Japanvia tld
jp

Social Profiles

X (Twitter)YouTube

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Last analyzed: 31 May 2026 at 17:34

Historical Analysis & Change Tracking

kamitsubaki.jp Technology Stack - Built With jQuery, Adobe Fonts (Typekit), Google Analytics, Google Analytics 4, Google Tag Manager | StackOptic | StackOptic