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portopia.co.jp

https://portopia.co.jp· First analyzed 16 May 2026· Updated 16 May 2026
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portopia.co.jp
Desktop screenshot of portopia.co.jp
Mobile screenshot of portopia.co.jp
Mobile

Sponsored

Hosting Provider

Sucuri

IP Address

192.124.249.6

Site Location

🇯🇵 Japanvia tld

Server Location

🇺🇸 Menifee, United States

ASN

AS30148

Organization

Sucuri

Server

Sucuri/Cloudproxy

CDN

Sucuri

WAF

Sucuri

Nameservers

ns2.atw.jp.ns1.atw.jp.ns3.atw.jp.

Performance

89

Core Web Vitals

Weight

First Contentful Paint
1.5 s10%
Speed Index
2.0 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
3.8 MB
146 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Sucuri
CDN
Sucuri

Technology Stack

13 Technologies Detected

Analytics

4
Google Analytics
Google Analytics 4
Facebook PixelMicrosoft Clarity

Libraries

2
jQueryv1.12.4
jQuery UI

UI Components

1
Slick Carousel

Other

1
Modernizr

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Tag Managers

1
Google Tag Manager

Advertising

1
Twitter Ads

Security

1
Sucuri

SEO Analysis

D55/100
15
7
2
Meta Tags11/15
Content9/12
Headings1/8
Technical13/25
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
P
portopia.co.jpportopia.co.jp

神戸ポートピアホテル[公式] 三宮から近い・神戸夜景が見える

三宮・新神戸からの無料シャトルバス運行の他、ポートライナー市民広場駅下車すぐで、神戸空港からも近くアクセスに優れています。六甲山、神戸空港の飛行機の離発着、ポートアイランドならではの全体が一望できる1000万$の夜景は絶景です。宿泊以外にもランチバイキングからパーティ、ウエディング・二次会、国際会議まで様々な場面...

Description truncated.
Title Length30 chars

Recommended: 50-60 chars (~186px / 580px)

Description Length168 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing H1 tag — every page should have exactly one H1
  • • Most images missing alt text (35/54) — critical for accessibility and SEO

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

1 URLs

robots.txt

Local SEO

Local Search Readiness

8/100
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

F38/100
Bot Access
20/25
Machine Read.
6/25
Schema Data
0/25
Citation
12/25

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:3%
Words:294
Token eff.:Too Short
Sections/1K:23.8
Depth:3/5

Structured Data

No Schema

Citation Readiness

Opening Summary30w
Descriptive Headingsavg 2w
Canonical URL
Open Graph3/3
Twitter Card0/3
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
8
Passed
4
Critical
2
Warnings
Images & Alt Text
15/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
17/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
7/15
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...
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.
16/100
F
485 mg
CO₂e / view
3.8 MB
Page Weight
15%
Cleaner Than
New Visitor
555 mg
vs
Returning (cached)
277 mg
Annual (10K/mo)
58.2 kg
Emission Segments
Data Center
108 mg
Network
117 mg
Device
260 mg
Resource Breakdown
JavaScript
215.7 KB
Images
2.3 MB
CSS
1.3 MB
HTML
16.3 KB
Green Hosting Not Verified
Sucuri
7 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
C

Security Score

66%Fair
Interactive

HTTPS

WAF

166d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

14.04.2026

Valid Until

29.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.portopia.co.jpportopia.co.jp

SHA-256 Fingerprint

6F:78:31:7B:51:EB:D4:D0:C2:9F:A6:6B:53:FD:4D:D0:57:00:A2:6A...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

alt-svc
h3=":443"; ma=2592000, h3-29=":443"; ma=2592000
cache-control
🔴 No Cache(no-store, no-cache, must-revalidate)
content-encoding
📦 Gzip(gzip)
content-security-policy
upgrade-insecure-requests;
content-type
text/html; charset=utf-8
date
Sat, 16 May 2026 18:49:15 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

68

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

cluster1.us.messagelabs.com
cluster1a.us.messagelabs.com

Domain Information

portopia.co.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
65/100
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=1.0
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

ヒラギノ角ゴ ProN

WCAG Partial
62/100
Readability
/30
20/30

14px · LH 1.50

Hierarchy
/20
7/20

1x ratio

WCAG
/25
15/25

1:1 min contrast

Performance
/25
20/25

1 font · 2 req

Heading Font

ヒラギノ角ゴ ProN

Sans14px

Body Font

ヒラギノ角ゴ ProN

Sans14px

Contrast Ratio

1:1

7 issues

Reading Comfort

~52 CPL

Optimal (45–75)
14px
h1
72px
h3
14px
p

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

✅ Optimal line length: ~52 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 7 elements below WCAG AA threshold (min 1.0:1).

⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

Buy on MyFontsFluid Type

Color Palette

5 unique colors
Light
#ffffff
Background· 99.69999999999999%
#6fcae3
Primary· 0%

Business & Marketing Stack

6 Tools Detected

Enterprise

Behavior Analytics

3
Google Tag ManagerFree
Google AnalyticsFree
Microsoft ClarityFree

User behavior and product analytics

Advertising

2
Facebook PixelMid-Market
Twitter/X AdsMid-Market

Ad platforms and retargeting pixels

Social Media

1
Facebook SDKFree

Social widgets and sharing tools

3

Categories

6

Total Tools

0

Enterprise

2

Mid-Market

Assessment: Sophisticated marketing and sales technology infrastructure

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Scripts & Styles

30 Resources

20
Scripts
10
Styles
16
Async
0
Defer

Top Script Sources

googletagmanager.com(4)google-analytics.com(2)connect.facebook.net(2)local(2)hm.mieru-ca.com(1)

Website Identity

portopia.co.jp

Location detected: 🇯🇵 Japanvia tld
ja

Sponsored

Last analyzed: 16 May 2026 at 18:49

Historical Analysis & Change Tracking