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fukuchi.org

https://fukuchi.org· First analyzed 28 May 2026· Updated 28 May 2026
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fukuchi.org
Desktop screenshot of fukuchi.org
Mobile screenshot of fukuchi.org
Mobile

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Hosting Provider

Linode (Akamai)
linode.com

IP Address

173.230.148.37

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Fremont, United States

ASN

AS63949

Organization

Linode

Server

Apache

Nameservers

ns1.linode.com.ns1.fukuchi.org.ns5.linode.com.ns4.linode.com.+2 more

Performance

100

Core Web Vitals

Weight

First Contentful Paint
680 ms10%
Speed Index
884 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
112 KB
22 requests
0–49
50–89
90–100

Architecture Stack

JAMstack
⚡ SSG
Frontend
Framework
Hugov0.159.0
Infrastructure
Hosting
Linode (Akamai)

Technology Stack

1 Technologies Detected

Web Servers

1
Apachev2.4.67

SEO Analysis

D58/100
18
8
1
Meta Tags5/15
Content10/12
Headings3/8
Technical16/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
F
fukuchi.orgfukuchi.org

Kentaro Fukuchi's site

Kentaro Fukuchi's personal Web site.

Title Length22 chars

Recommended: 50-60 chars (~129px / 580px)

Description Length36 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: index

2 URLs

2 sub-sitemaps

robots.txt

3 rules

Local SEO

Local Search Readiness

12/100
Poor
3 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

D41/100
Bot Access
20/25
Machine Read.
12/25
Schema Data
0/25
Citation
9/25

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:22%
Words:426
Token eff.:Optimal
Sections/1K:14.1
Depth:3/5

Structured Data

RDFa
BreadcrumbList(min)rdfa

Citation Readiness

Opening Summary
Descriptive Headingsavg 1.5w
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (11)
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.
C
68/100
8
Passed
3
Critical
1
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
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
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.
3 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.
75/100
A+
11 mg
CO₂e / view
112.0 KB
Page Weight
95%
Cleaner Than
New Visitor
13 mg
vs
Returning (cached)
7 mg
Annual (10K/mo)
1.4 kg
Emission Segments
Data Center
<0.001 g
Network
3 mg
Device
7 mg
Resource Breakdown
Images
101.0 KB
CSS
6.9 KB
HTML
4.2 KB
Green Hosting Verified
Linode (Akamai)
Provider Match
2 recommendations
  • •Carbon footprint recommendation preview...
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F

Security Score

36%Critical
Interactive

HTTPS

No WAF

49d

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/1.1

Valid From

18.04.2026

Valid Until

17.07.2026

Subject Alternative Names (1)

fukuchi.org

SHA-256 Fingerprint

3E:CA:73:5C:A6:1B:BC:D8:0E:76:73:58:FA:F4:EC:E3:CA:E0:99:86...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges
bytes
cache-control
🔵 1 Days(max-age=86400)
connection
Keep-Alive
content-encoding
📦 Gzip(gzip)
content-language
ja
content-length
3960
Good Warning Issue

Email Infrastructure

Google Workspace

Score

93

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (5)

ASPMX.L.GOOGLE.COM
ALT4.ASPMX.L.GOOGLE.COM
ALT1.ASPMX.L.GOOGLE.COM
ALT2.ASPMX.L.GOOGLE.COM

+1 more

Domain Information

fukuchi.org

Domain Age
15y 10m

Created

25.07.2010

Expires

25.07.2026

Last Updated

23.01.2023

Registrar

NameCheap, Inc.

DNSSEC
Not Enabled

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.
D
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
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

メイリオ

WCAG Fail
54/100
Readability
/30
22/30

17px · LH 1.40

Hierarchy
/20
4/20
WCAG
/25
12/25

1:1 min contrast

Performance
/25
16/25

1 font

Heading Font

メイリオ

Sans

Body Font

メイリオ

Sans17px

Contrast Ratio

1:1

50 issues

Reading Comfort

Single Font Family

left aligned
17px
h2
17px
p

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

✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 7/100. Consider shorter sentences and simpler words.

❌ Low contrast: 50 elements fail WCAG AA (min 1.0:1). Increase text/background contrast.

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

⚠️ Text justify detected: Justified text creates uneven word spacing, hurting readability on web.

Buy on MyFontsFlesch 7

Color Palette

7 unique colors
Dark
#647473
Other· 7.1%
#03040a
Primary· 29%
#0e1223
Secondary· 20.5%
#161d3a
Secondary· 18.6%
#1e2b4b
Secondary· 14.2%
#434035
Secondary· 5.6%
#a9cda4
Secondary· 5%

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

2 Resources

0
Scripts
2
Styles
0
Async
0
Defer

Top Script Sources

Website Identity

fukuchi.org

15 years old

FUKUCHI Kentaro(E-mail address is here)

Location detected: 🇺🇸 United Statesvia ip
NameCheap, Inc.📧 Google Workspaceen

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Last analyzed: 28 May 2026 at 21:54

Historical Analysis & Change Tracking

fukuchi.org Technology Stack - Built With Apache | StackOptic | StackOptic