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nihonjin.jp

https://nihonjin.jp· First analyzed 12 May 2026· Updated 12 May 2026
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nihonjin.jp
Desktop screenshot of nihonjin.jp
Mobile screenshot of nihonjin.jp
Mobile

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Hosting Provider

INTERLINK Co., LTD.

IP Address

203.141.143.101

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS2514

Organization

INTERLINK Co., LTD.

Server

Apache

Nameservers

ddns1.interlink.or.jp.ddns2.interlink.or.jp.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
845 ms10%
Speed Index
1.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
205 KB
10 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
INTERLINK Co., LTD.

Technology Stack

1 Technologies Detected

Web Servers

1
Apache

SEO Analysis

F39/100
12
7
3
Meta Tags4/15
Content2/12
Headings6/8
Technical9/21
E-E-A-T0/7
Images4/7
Links2/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
N
nihonjin.jpnihonjin.jp

フレッツ対応プロバイダ　インターリンク

No description available for this page.

Title Length19 chars

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

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

  • • Missing meta description — important for click-through rates in SERPs
  • • Very thin content (13 words). Search engines need substantial content for ranking.
  • • Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

10 issues found

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Local SEO

Local Search Readiness

3/100
Poor
1 14 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

F29/100
Bot Access
20/25
Machine Read.
3/25
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:2%
Words:11
Token eff.:Too Short
Sections/1K:10
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary20w
Descriptive Headings
Canonical URL
Open Graph0/3
Twitter Card0/3
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
71/100
9
Passed
4
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
11/20
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...
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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.
53/100
A+
25 mg
CO₂e / view
205.1 KB
Page Weight
95%
Cleaner Than
New Visitor
29 mg
vs
Returning (cached)
15 mg
Annual (10K/mo)
3.0 kg
Emission Segments
Data Center
6 mg
Network
6 mg
Device
14 mg
Resource Breakdown
JavaScript
7.4 KB
Images
169.0 KB
CSS
20.5 KB
HTML
8.3 KB
Green Hosting Not Verified
INTERLINK Co., LTD.
4 recommendations
  • •Carbon footprint recommendation preview...
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B

Security Score

71%Good
Static / Informational

HTTPS

No WAF

89d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

12.05.2026

Valid Until

10.08.2026

Subject Alternative Names (2)

*.nihonjin.jpnihonjin.jp

SHA-256 Fingerprint

64:77:D1:6F:1F:26:11:3B:C1:0C:0B:54:99:48:51:2C:F9:1F:52:2F...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges
bytes
connection
Keep-Alive
content-length
8218
content-type
text/html
date
Tue, 12 May 2026 09:32:30 GMT
etag
"201a-574766a5b2f00"
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

93

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

mail.nihonjin.jp

Domain Information

nihonjin.jp

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.
F
32/100
Not 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.
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

メイリオ

WCAG AAA
58/100
Readability
/30
11/30

13px · LH 1.60

Hierarchy
/20
12/20
WCAG
/25
21/25

21:1 min contrast

Performance
/25
14/25

1 font

Heading Font

メイリオ

Sans0

Body Font

メイリオ

Sans13px

Contrast Ratio

21:1

WCAG AAA (≥7:1)

Reading Comfort

~126 CPL

Too wide
16px
h1
13px
p

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

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

❌ Very long lines: ~126 chars/line causes eye strain. Add max-width constraint.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 21.0:1).

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

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFonts

Color Palette

5 unique colors
Light
#ececee
Background· 43.599999999999994%
#4681ac
Primary· 8.8%
#e9a7b6
Accent· 5.6%
#4c3c79
Secondary· 5.2%

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Scripts & Styles

2 Resources

1
Scripts
1
Styles
0
Async
0
Defer

Top Script Sources

js(1)

Website Identity

nihonjin.jp

Location detected: 🇯🇵 Japanvia tld
ja

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Last analyzed: 12 May 2026 at 09:32

Historical Analysis & Change Tracking