osu.nagoya

https://osu.nagoya· First analyzed 03 Jun 2026· Updated 03 Jun 2026

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osu.nagoya

Mobile

Sponsored

Hosting Provider

SAKURA

IP Address

219.94.159.61

Site Location

🇯🇵 Japanvia ip

Server Location

🇯🇵 Osaka, Japan

ASN

AS9371

Organization

SAKURA

Server

Nginx

Nameservers

ns2.dns.ne.jp.ns1.dns.ne.jp.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.6 s10%

Speed Index

2.0 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

6 MB

62 requests

Image Optimization

Lazy LoadWebP

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

SAKURA

Technology Stack

7 Technologies Detected

Analytics

Libraries

UI Components

CSS Frameworks

Icon Libraries

Web Servers

SEO Analysis

D49/100

Meta Tags5/15

Content9/12

Headings3/8

Technical11/21

E-E-A-T0/7

Images4/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

osu.nagoyaosu.nagoya

Osu Shopping Street

Osu

Title Length19 chars

Recommended: 50-60 chars (~118px / 580px)

Description Length3 chars

Recommended: 120-160 chars

Issues (1)

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

9 issues found

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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

F31/100

Bot Access

20/25

Machine Read.

5/25

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

navheader/footer

Text ratio:8%

Words:292

Token eff.:Too Short

Sections/1K:13.7

Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary15w

Descriptive Headingsavg 4.2w

Canonical URL

Open Graph0/3

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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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.

68/100

Passed

Critical

Warnings

Images & Alt Text

15/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

20/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

5/15

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.

3 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.

17/100

760 mg

CO₂e / view

6.0 MB

Page Weight

Cleaner Than

New Visitor

869 mg

Returning (cached)

434 mg

Annual (10K/mo)

91.2 kg

Emission Segments

Data Center

170 mg

Network

182 mg

Device

408 mg

Resource Breakdown

JavaScript

113.3 KB

Images

912.1 KB

CSS

458.8 KB

HTML

21.2 KB

Other

4.5 MB

Green Hosting Not Verified

SAKURA

8 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

81d

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

25.05.2026

Valid Until

23.08.2026

Subject Alternative Names (2)

osu.nagoyawww.osu.nagoya

SHA-256 Fingerprint

03:A8:8B:4F:DA:2A:3B:6A:84:3E:E4:6A:05:9A:9E:B3:13:97:79:09...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-type

text/html; charset=UTF-8

date

Wed, 03 Jun 2026 17:40:31 GMT

server

nginx

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

osu.nagoya

Domain Information

osu.nagoya

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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.

58/100

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...

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Typography & Readability

Hiragino Sans

WCAG Partial

63/100

Readability

/30

20/30

14px · LH 1.60

Hierarchy

/20

13/20

1.14x ratio · ✓ H1→H6

WCAG

/25

14/25

1:1 min contrast

Performance

/25

16/25

2 fonts

Heading Font

Hiragino Sans

Sans16px

Body Font

Hiragino Sans

Sans14px

Contrast Ratio

1:1

22 issues

Reading Comfort

~40 CPL

Narrow lines

16px

22px

28px

24px

14px

Minor Third

Scale

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

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

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

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

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

✅ Lean font stack: 2 font families keeps load times fast.

Buy on MyFonts

Color Palette

15 unique colors

2.53:1 Fail Dark

#615e5c

Other· 7.8%

#a8a1a0

Other· 5.7%

#5a4243

Primary· 11.7%

#691424

Accent· 8.1%

#3b060f

Accent· 7.6%

#3d3030

Text· 7.6%

#1a0607

Accent· 5.8%

#806566

Secondary· 5.6%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

11 Resources

Scripts

Styles

Async

Defer

Top Script Sources

..(6)googletagmanager.com(1)

Website Identity

osu.nagoya

Location detected: 🇯🇵 Japanvia ip

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Last analyzed: 03 Jun 2026 at 17:41

Historical Analysis & Change Tracking