nippon-maru.or.jp

https://nippon-maru.or.jp· First analyzed 27 May 2026· Updated 27 May 2026

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nippon-maru.or.jp

Mobile

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Hosting Provider

SAKURA

IP Address

219.94.128.216

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Osaka, Japan

ASN

AS9371

Organization

SAKURA

Server

Nginx

Nameservers

dns01.gmoserver.jp.dns02.gmoserver.jp.

Performance

Core Web Vitals

Weight

First Contentful Paint

2.4 s10%

Speed Index

3.2 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

5.6 MB

133 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

Nihonmaruv1.7Custom

View Theme

Technology Stack

27 Technologies Detected

Plugins

Snow Monkey Blocks

Gutenberg

Xo Event Calendar Vk Blocks Snow Monkey Editor Flexible Table Block Responsive Lightbox Ultimate Blocks Mts Simple Booking Page Links To

Yoast SEO

Libraries

jQueryv1.11.3

Underscore.js Lightbox

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel

UI Components

Swiper Slick Carousel

CSS Frameworks

Other

Icon Libraries

Fonts

Tag Managers

Web Servers

Languages

SEO Analysis

C63/100

Meta Tags8/15

Content6/12

Headings3/8

Technical23/25

E-E-A-T0/7

Images2/7

Links5/5

URL5/5

Social4/5

Freshness0/4

Mobile4/4

Indexability3/3

nippon-maru.or.jpnippon-maru.or.jp

帆船日本丸・横浜みなと博物館｜横浜みなとみらい

「太平洋の白鳥」と呼ばれた重要文化財初代帆船日本丸は横浜みなとみらい地区で保存・公開されています。横浜港をテーマにした横浜みなと博物館、柳原良平アートミュージアムが併設され、メモリアルパークの緑地はみなとみらいの憩いの場となっています。

Title Length23 chars

Recommended: 50-60 chars (~142px / 580px)

Description Length118 chars

Recommended: 120-160 chars

Issues (1)

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

9 issues found

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Crawlability

Sitemap

Type: index

6 URLs

6 sub-sitemaps

robots.txt

3 rules

Sitemap reference found

Local SEO

Local Search Readiness

20/100

Needs Work

5 11 1

Sponsored

AI & LLM Readiness

D41/100

Bot Access

20/25

Machine Read.

4/25

Schema Data

4/25

Citation

13/25

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:2%

Words:161

Token eff.:Too Short

Sections/1K:12.4

Depth:1/5

Structured Data

3 JSON-LD

WebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary40w

Descriptive Headingsavg 1w

Canonical URL

Open Graph2/3

Twitter Card1/3

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.

74/100

Passed

Critical

Warnings

Images & Alt Text

13/20

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

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

15/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

3/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

2 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.

5/100

708 mg

CO₂e / view

5.6 MB

Page Weight

Cleaner Than

New Visitor

810 mg

Returning (cached)

405 mg

Annual (10K/mo)

85.0 kg

Emission Segments

Data Center

158 mg

Network

170 mg

Device

380 mg

Resource Breakdown

JavaScript

2.1 MB

Images

2.5 MB

CSS

906.0 KB

Fonts

770 B

HTML

94.8 KB

Green Hosting Not Verified

SAKURA

10 recommendations

•Carbon footprint recommendation preview...

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A+

Security Score

98%Excellent

Static / Informational

HTTPS

No WAF

39d

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/2

Valid From

06.04.2026

Valid Until

05.07.2026

Subject Alternative Names (2)

nippon-maru.or.jpwww.nippon-maru.or.jp

SHA-256 Fingerprint

61:B6:DC:04:3F:06:1D:A3:65:E0:B4:2A:D2:AB:38:03:C6:00:33:A6...

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HTTP Headers

Developer Console

content-security-policy

upgrade-insecure-requests

content-type

text/html; charset=UTF-8

date

Wed, 27 May 2026 19:37:28 GMT

expect-ct

max-age=7776000, enforce

link

<https://www.nippon-maru.or.jp/wp-json/>; rel="https://api.w...

referrer-policy

no-referrer-when-downgrade

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mx19.gmoserver.jp

Domain Information

nippon-maru.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.

69/100

Mobile Friendly5 breakpoints

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

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

メイリオ

WCAG Partial

61/100

Readability

/30

22/30

16px · LH 1.40

Hierarchy

/20

6/20

WCAG

/25

18/25

1:1 min contrast

Performance

/25

15/25

1 font · 3 req

Heading Font

メイリオ

Sans

Body Font

メイリオ

Sans16px

Contrast Ratio

1:1

15 issues

Reading Comfort

Single Font Family

left aligned

32px

16px

✅ Excellent readability: 16px body text is ideal for all devices.

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

⚠️ Partial contrast: 15 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).

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

GGoogle Fonts Buy on MyFontsFluid Type (rem)

Color Palette

13 unique colors

13.97:1 AAA Dark

#000000

Background· 84.39999999999999%

#d4d2d4

Other· 0.9%

#121212

Primary· 0%

#fffffe

Primary· 2.5%

#555c7f

Secondary· 1.9%

#c1b5c8

Secondary· 1.7%

#969ab6

Secondary· 1.6%

#553341

Secondary· 1.2%

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Social Media

Facebook SDKFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

nippon-maru.or.jp(11)connect.facebook.net(4)youtube.com(2)google-analytics.com(1)googletagmanager.com(1)

Website Identity

帆船日本丸・横浜みなと博物館

www.nippon-maru.or.jp/

Location detected: 🇯🇵 Japanvia tld

Social Profiles

Facebook X (Twitter)Instagram

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Last analyzed: 27 May 2026 at 19:38

Historical Analysis & Change Tracking