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jhdac.org

https://jhdac.org· First analyzed 29 May 2026· Updated 29 May 2026
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jhdac.org
Desktop screenshot of jhdac.org
Mobile screenshot of jhdac.org
Mobile

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Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

54.199.111.1

Site Location

🇯🇵 Japanvia ip

Server Location

🇯🇵 Tokyo, Japan

ASN

AS16509

Organization

AWS EC2 (ap-northeast-1)

Server

Apache

Nameservers

ns1.as-server.net.ns3.as-server.net.

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%
545 KB
36 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Amazon Web Services (AWS)

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

6 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

UI Components

1
Swiper

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Web Servers

1
Apache

SEO Analysis

B72/100
22
3
1
Meta Tags13/15
Content8/12
Headings8/8
Technical18/21
E-E-A-T0/7
Images3/7
Links5/5
URL5/5
Social3/5
Freshness2/4
Mobile4/4
Indexability3/3
J
jhdac.orgjhdac.org

Japan Hair Donation ＆ Charity【ジャーダック JHD&C】

Japan Hair Donation & Charity（通称：JHD&C,ジャーダック）は、寄付された髪だけで作ったメディカル・ウィッグを頭髪に悩みを抱える18歳以下の子どもたちに無償提供している日本初のNPO法人です。

Title Length43 chars

Recommended: 50-60 chars (~260px / 580px)

Description Length112 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (23/29) — critical for accessibility and SEO

4 issues found

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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.

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AI & LLM Readiness

D44/100
Bot Access
20/25
Machine Read.
8/25
Schema Data
1/25
Citation
15/25

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:4%
Words:260
Token eff.:Too Short
Sections/1K:61.5
Depth:3/5

Structured Data

Microdata
BreadcrumbListmicrodata

Citation Readiness

Opening Summary20w
Descriptive Headingsavg 1.1w
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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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
13
Passed
2
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
18/20
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
9/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
1 recommendation
  • •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.
69/100
A
55 mg
CO₂e / view
545.3 KB
Page Weight
80%
Cleaner Than
New Visitor
63 mg
vs
Returning (cached)
32 mg
Annual (10K/mo)
6.6 kg
Emission Segments
Data Center
3 mg
Network
16 mg
Device
36 mg
Resource Breakdown
JavaScript
148.9 KB
Images
193.3 KB
CSS
116.9 KB
HTML
85.4 KB
Other
914 B
Green Hosting Verified
Amazon Web Services (AWS)
Provider Match
4 recommendations
  • •Carbon footprint recommendation preview...
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B

Security Score

71%Good
Static / Informational

HTTPS

No WAF

164d

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

09.10.2025

Valid Until

10.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.jhdac.orgjhdac.org

SHA-256 Fingerprint

E3:A5:FF:9A:93:D9:3F:48:C1:40:5D:3B:37:78:60:8A:6E:79:DF:7B...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges
bytes
content-type
text/html; charset=UTF-8
date
Fri, 29 May 2026 20:19:30 GMT
server
Apache
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

45

SPF
DKIM
DMARC

MX Records (1)

mail.jhdac.org

Domain Information

jhdac.org

Domain Age
16y 8m

Created

08.09.2009

Expires

08.09.2026

Last Updated

15.08.2025

Registrar

eNom, LLC

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
63/100
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
2 recommendations
  • •Mobile compatibility recommendation preview...
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Typography & Readability

Meiryo

WCAG Partial
66/100
Readability
/30
19/30

17px · LH 1.80

Hierarchy
/20
12/20

1.47x ratio

WCAG
/25
19/25

2.95:1 min contrast

Performance
/25
16/25

1 font

Heading Font

Meiryo

Sans25px

Body Font

Meiryo

Sans17px

Contrast Ratio

2.95:1

2 issues

Reading Comfort

~39 CPL

Narrow lines
25px
h1
32px
h2
32px
h3
20px
h4
17px
p
Minor Second
Scale

✅ Excellent readability: 17px body text is ideal for all devices.

⚠️ Hard to read: Flesch score 41/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 3.0:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

⚠️ 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).

Buy on MyFontsFluid Type (rem)Flesch 41

Color Palette

8 unique colors
Light
#ffffff
Background· 44.6%
#00adef
Primary· 15.4%
#b2a077
Secondary· 10.1%
#c9c4b7
Border· 9.3%
#fbf1e6
Accent· 8.3%
#9e6e54
Secondary· 5.5%
#e1e0d7
Secondary· 5.2%
#3eb9e3
Accent· 1.8%

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

13 Resources

6
Scripts
7
Styles
3
Async
3
Defer

Top Script Sources

local(3)googletagmanager.com(2)google-analytics.com(1)

Website Identity

jhdac.org

16 years old
Location detected: 🇯🇵 Japanvia ip
eNom, LLCja

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Last analyzed: 29 May 2026 at 20:19

Historical Analysis & Change Tracking