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nippon1.jp

https://nippon1.jp· First analyzed 11 May 2026· Updated 11 May 2026
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nippon1.jp
Desktop screenshot of nippon1.jp
Mobile screenshot of nippon1.jp
Mobile

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Hosting Provider

OCN

IP Address

219.166.143.221

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Okazaki, Japan

ASN

AS4713

Server

Apache

Nameservers

ns.nippon1.co.jp.ns2.nippon1.co.jp.

Performance

95

Core Web Vitals

Weight

First Contentful Paint
1.1 s10%
Speed Index
1.5 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
15.6 MB
115 requests

Image Optimization

WebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
OCN

Technology Stack

9 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
jQuery

UI Components

1
Slick Carousel

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

Web Servers

1
Apachev2.4.6

Languages

1
PHPv7.4.33

SEO Analysis

D57/100
17
6
1
Meta Tags5/15
Content9/12
Headings3/8
Technical15/25
E-E-A-T0/7
Images3/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
N
nippon1.jpnippon1.jp

日本一ソフトウェア 公式サイト

家庭用ゲームソフトの企画開発を行う、株式会社日本一ソフトウェアのオフィシャルサイトです。

Title Length15 chars

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

Description Length44 chars

Recommended: 120-160 chars

Issues (1)

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

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

107 URLs

robots.txt

2 rules

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

F33/100
Bot Access
20/25
Machine Read.
4/25
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
nav
Text ratio:3%
Words:275
Token eff.:Too Short
Sections/1K:18.2
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary135w
Descriptive Headingsavg 1w
Canonical URL
Open Graph3/3
Twitter Card3/3
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.
C
64/100
10
Passed
5
Critical
2
Warnings
Images & Alt Text
10/20
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
4/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
4 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.
11/100
F
1.98 g
CO₂e / view
15.6 MB
Page Weight
5%
Cleaner Than
New Visitor
2.26 g
vs
Returning (cached)
1.13 g
Annual (10K/mo)
237.7 kg
Emission Segments
Data Center
442 mg
Network
475 mg
Device
1.06 g
Resource Breakdown
JavaScript
165.2 KB
Images
9.1 MB
CSS
63.7 KB
Fonts
60.3 KB
HTML
54.9 KB
Other
6.2 MB
Green Hosting Not Verified
OCN
9 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
B

Security Score

76%Good
Static / Informational

HTTPS

No WAF

277d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Nijimo, Inc.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

13.01.2026

Valid Until

12.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.nippon1.jpnippon1.jp

SHA-256 Fingerprint

61:6B:42:4A:13:DF:57:2A:44:F0:12:D2:96:D8:A3:41:8A:3D:E4:BB...

Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

content-type
text/html; charset=UTF-8
date
Mon, 11 May 2026 06:29:50 GMT
server
Apache/2.4.6 (CentOS) OpenSSL/1.0.2k-fips PHP/7.4.33
strict-transport-security
max-age=86400; includeSubDomains; preload
x-powered-by
PHP/7.4.33
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

45

SPF
DKIM
DMARC

MX Records (2)

mail.nippon1.jp
submail.nippon1.jp

Domain Information

nippon1.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
62/100
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
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Noto Sans JP

WCAG Partial
60/100
Readability
/30
17/30

15px · LH 1.36

Hierarchy
/20
5/20
WCAG
/25
18/25

1:1 min contrast

Performance
/25
20/25

1 font · 2 req

Heading Font

Noto Sans JP

Sans

Body Font

Noto Sans JP

Sans15px

Contrast Ratio

1:1

11 issues

Reading Comfort

Single Font Family

left aligned
40px
h2
15px
p

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

⚠️ Tight line spacing (1.36). Increase to 1.4–1.6 for better readability.

✅ Easy to read: Flesch score 100/100 — accessible to general audiences.

⚠️ Partial contrast: 11 elements below WCAG AA threshold (min 1.0:1).

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

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

GGoogle FontsFluid Type (rem)Flesch 100

Color Palette

13 unique colors
Light
#ffffff
Background· 29.2%
#6b6045
Secondary· 8.2%
#2239de
Primary· 0%
#5e4028
Secondary· 8.1%
#121009
Secondary· 7%
#505041
Text· 6.3%
#40382b
Secondary· 6.1%
#8d694d
Secondary· 5.6%

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

15 Resources

10
Scripts
5
Styles
4
Async
5
Defer

Top Script Sources

googletagmanager.com(4)vendor(4)js(2)

Website Identity

nippon1.jp

Location detected: 🇯🇵 Japanvia tld
ja

Sponsored

Last analyzed: 11 May 2026 at 06:30

Historical Analysis & Change Tracking