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churaumi.okinawa

https://churaumi.okinawa· First analyzed 03 May 2026· Updated 03 May 2026
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churaumi.okinawa
Desktop screenshot of churaumi.okinawa
Mobile screenshot of churaumi.okinawa
Mobile

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Hosting Provider

IP Address

210.152.127.85

Site Location

🇯🇵 Japanvia ip

Server Location

🇯🇵 Kitakyushu, Japan

ASN

AS4694

Organization

Yahoo Japan Corporation

Server

Apache

Nameservers

b202.psi-japan.net.ns.iamdn.co.jp.b204.psi-japan.net.b203.psi-japan.net.

Performance

74

Core Web Vitals

Weight

First Contentful Paint
4.1 s10%
Speed Index
5.3 s10%
Largest Contentful Paint
25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
15.1 MB
143 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Yahoo Japan Corporation

Technology Stack

6 Technologies Detected

SEO Analysis

D57/100
15
9
1
Meta Tags7/15
Content12/12
Headings3/8
Technical13/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
C
churaumi.okinawachuraumi.okinawa

沖縄美ら海水族館 - 沖縄の美ら海を、次の世代へ。-

沖縄美ら海水族館(おきなわちゅらうみすいぞくかん)は、沖縄本島北西部の本部半島備瀬崎近くにある海洋博公園内の水族館。「チュらうみ」とは沖縄の言葉で「清[きよ]ら(しい)海」という意味。

Title Length26 chars

Recommended: 50-60 chars (~161px / 580px)

Description Length92 chars

Recommended: 120-160 chars

Issues (1)

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

Crawlability

Sitemap

Type: standard

robots.txt

Local SEO

Local Search Readiness

8/100
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

F39/100
Bot Access
20/25
Machine Read.
11/25
Schema Data
0/25
Citation
8/25

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
blockquotesdef. listsnavheader/footer
Text ratio:7%
Words:497
Token eff.:Optimal
Sections/1K:44.3
Depth:4/5

Structured Data

No Schema

Citation Readiness

Opening Summary
Descriptive Headingsavg 1.2w
Canonical URL
Open Graph3/3
Twitter Card0/3
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
66/100
9
Passed
5
Critical
2
Warnings
Images & Alt Text
15/20
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
4/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
5 recommendations
  • Accessibility recommendation preview...

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.
4/100
F
1.91 g
CO₂e / view
15.1 MB
Page Weight
5%
Cleaner Than
New Visitor
2.18 g
vs
Returning (cached)
1.09 g
Annual (10K/mo)
229.3 kg
Emission Segments
Data Center
427 mg
Network
459 mg
Device
1.03 g
Resource Breakdown
JavaScript
197.6 KB
Images
13.9 MB
CSS
965.6 KB
HTML
82.5 KB
Green Hosting Not Verified
Yahoo Japan Corporation
9 recommendations
  • Carbon footprint recommendation preview...
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

125d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

05.08.2025

Valid Until

05.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

churaumi.okinawawww.churaumi.okinawa

SHA-256 Fingerprint

82:ED:1D:42:71:D4:56:42:58:BE:92:93:0E:26:36:56:5D:A1:62:9F...

Top Recommendations

Security recommendation preview

HTTP Headers

Developer Console

connection
Keep-Alive
content-type
text/html
date
Sun, 03 May 2026 13:52:46 GMT
keep-alive
timeout=5, max=100
server
Apache
transfer-encoding
chunked
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

45

SPF
DKIM
DMARC

MX Records (1)

mail.iamdn.co.jp

Domain Information

churaumi.okinawa

Domain Age
11y 6m

Created

04.11.2014

Expires

04.11.2026

Last Updated

04.04.2026

Registrar

1API GmbH

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

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
42/100
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.
Viewport
width=1480, minimum-scale=0, maximum-scale=10
3 recommendations
  • Mobile compatibility recommendation preview...

Typography & Readability

游ゴシック体

WCAG Partial
57/100
Readability
/30
22/30

16px · LH 1.60

Hierarchy
/20
7/20
WCAG
/25
14/25

1:1 min contrast

Performance
/25
14/25

1 font

Heading Font

游ゴシック体

Sans

Body Font

游ゴシック体

Sans16px

Contrast Ratio

1:1

22 issues

Reading Comfort

~35 CPL

Narrow lines
30px
h2
30px
h3
32px
h4
16px
p
Minor Second
Scale

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

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

⚠️ Partial contrast: 22 elements below WCAG AA threshold (min 1.0:1).

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

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

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

Color Palette

14 unique colors
Dark
#000000
Background· 23.6%
#fefffe
Primary· 10.7%
#d8cbb2
Secondary· 10%
#cebda0
Secondary· 9.6%
#9f6118
Accent· 8.9%
#833d08
Accent· 7.3%
#221814
Primary· 5.5%
#c8a16b
Secondary· 5.1%

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

2

User behavior and product analytics

Advertising

1

Ad platforms and retargeting pixels

Social Media

1

Social widgets and sharing tools

3

Categories

4

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Well-developed marketing technology stack

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Scripts & Styles

18 Resources

10
Scripts
8
Styles
5
Async
1
Defer

Top Script Sources

local(4)googletagmanager.com(3)google-analytics.com(1)cdnjs.cloudflare.com(1)connect.facebook.net(1)

Website Identity

churaumi.okinawa

11 years old
Location detected: 🇯🇵 Japanvia ip
1API GmbHja

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Last analyzed: 03 May 2026 at 13:53

Historical Analysis & Change Tracking