shibusawa.or.jp

https://shibusawa.or.jp· First analyzed 30 May 2026· Updated 30 May 2026

Export

shibusawa.or.jp

Mobile

Sponsored

Hosting Provider

XSERVER Inc.

IP Address

183.90.237.37

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS131965

Organization

XSERVER Inc.

Server

Apache

CDN

CloudFront

Nameservers

dns.jnetstation.com.ns1.jnetstation.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.9 s10%

Speed Index

2.5 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

2.3 MB

83 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Platform

AWS CloudFront

CDN

CloudFront

Technology Stack

7 Technologies Detected

Analytics

Libraries

CSS Frameworks

Tag Managers

Web Servers

SEO Analysis

D53/100

Meta Tags7/15

Content12/12

Headings1/8

Technical11/21

E-E-A-T3/7

Images2/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

shibusawa.or.jpshibusawa.or.jp

公益財団法人渋沢栄一記念財団

渋沢栄一記念財団は、渋沢栄一（1840～1931年、号=青淵［せいえん］）が常に主張し、実践していた「道徳経済合一主義」に基づき、経済道義を高揚することを目的とする公益財団法人です。

Title Length15 chars

Recommended: 50-60 chars (~93px / 580px)

Description Length92 chars

Recommended: 120-160 chars

Issues (1)

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

11 issues found

Upgrade to view details

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.

Sponsored

AI & LLM Readiness

F38/100

Bot Access

20/25

Machine Read.

12/25

Schema Data

0/25

Citation

6/25

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. lists

Text ratio:12%

Words:525

Token eff.:Optimal

Sections/1K:26.7

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headingsavg 1.3w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (9)

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.

61/100

Passed

Critical

Warnings

Images & Alt Text

15/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

14/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

10/15

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

6/15

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.

3 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.

8/100

290 mg

CO₂e / view

2.3 MB

Page Weight

50%

Cleaner Than

New Visitor

331 mg

Returning (cached)

166 mg

Annual (10K/mo)

34.8 kg

Emission Segments

Data Center

65 mg

Network

70 mg

Device

156 mg

Resource Breakdown

JavaScript

172.3 KB

Images

1.9 MB

CSS

135.5 KB

HTML

63.9 KB

Other

3.2 KB

Green Hosting Not Verified

XSERVER Inc.

7 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

41%Poor

Interactive

HTTPS

No WAF

214d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

01.12.2025

Valid Until

30.12.2026

OCSP Stapling

Enabled

Subject Alternative Names (3)

www.shibusawa.or.jpshibusawa.or.jp*.shibusawa.or.jp

SHA-256 Fingerprint

EC:A0:3A:04:CC:02:0C:00:B6:55:E0:0A:BC:4E:E3:23:8F:F3:B0:FF...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

content-length

65162

content-type

text/html

date

Sat, 30 May 2026 16:27:37 GMT

server

Apache

via

1.1 a4b90eeb3ac2a0b286bca1c8dc675fae.cloudfront.net (CloudFr...

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

avgate.ssl.aiosl.com

Domain Information

shibusawa.or.jp

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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.

50/100

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

4 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Hiragino Kaku Gothic Pro

WCAG Partial

66/100

Readability

/30

16/30

13px · LH 1.70

Hierarchy

/20

18/20

2.15x ratio · ✓ H1→H6

WCAG

/25

16/25

1:1 min contrast

Performance

/25

16/25

1 font

Heading Font

Hiragino Kaku Gothic Pro

Sans28px

Body Font

Hiragino Kaku Gothic Pro

Sans13px

Contrast Ratio

1:1

20 issues

Reading Comfort

~52 CPL

Optimal (45–75)

28px

21px

20px

13px

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

✅ Optimal line length: ~52 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 20 elements below WCAG AA threshold (min 1.0:1).

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

✅ Strong hierarchy: Headlines are 2.1x larger than body text.

✅ Lean font stack: 1 font families keeps load times fast.

Buy on MyFonts

Color Palette

7 unique colors

10.37:1 AAA Light

#ffffff

Background· 67.60000000000002%

#453f3a

Text· 14%

#574b45

Primary· 3.4%

#394953

Secondary· 1.5%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

18 Resources

Scripts

Styles

Async

Defer

Top Script Sources

shibusawa.or.jp(8)googletagmanager.com(3)google-analytics.com(1)

Website Identity

shibusawa.or.jp

公益財団法人渋沢栄一記念財団〒114-0024 東京都北区西ヶ原2-16-1電話:03-3910-2314（総務部・研究センター） 03-3910-0005（渋沢史料館） 03-3910-0029（情報資源センター）

Location detected: 🇯🇵 Japanvia tld

Social Profiles

Facebook

Sponsored

Last analyzed: 30 May 2026 at 16:28

Historical Analysis & Change Tracking

shibusawa.or.jp

公益財団法人 渋沢栄一記念財団

Accessibility

Carbon Footprint

Mobile Compatibility

Color Palette

shibusawa.or.jp

公益財団法人渋沢栄一記念財団