yabaitshirtsyasan.com

https://yabaitshirtsyasan.com· First analyzed 02 Jun 2026· Updated 02 Jun 2026

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Mobile

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Hosting Provider

KAGOYA JAPAN Inc.

IP Address

153.127.227.129

Site Location

🇯🇵 Japanvia ip

Server Location

🇯🇵 Nagoya, Japan

ASN

AS24282

Organization

KAGOYA JAPAN Inc.

Server

Apache

Nameservers

ns-607.awsdns-11.net.ns-1139.awsdns-14.org.ns-1932.awsdns-49.co.uk.ns-231.awsdns-28.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

2.3 s10%

Speed Index

3.0 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

3.7 MB

99 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.2.2

cms

ヤバイTシャツ屋さん OFFICIAL WEB SITEv1.0Custom

by daisuke gamachi

Technology Stack

9 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Plugins

The Events Calendar Wp Pagenavi

Libraries

Other

Icon Libraries

Web Servers

CSS Frameworks

SEO Analysis

D52/100

Meta Tags5/15

Content7/12

Headings1/8

Technical16/25

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social5/5

Freshness0/4

Mobile4/4

Indexability3/3

yabaitshirtsyasan.comyabaitshirtsyasan.com

ヤバイTシャツ屋さん OFFICIAL WEB SITE

そこまでヤバくない。バンド。

Title Length28 chars

Recommended: 50-60 chars (~172px / 580px)

Description Length14 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (42/68) — critical for accessibility and SEO

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

17 URLs

17 sub-sitemaps

robots.txt

4 rules

Sitemap reference found

Local SEO

Local Search Readiness

8/100

Poor

3 12 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.

7/25

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

header/footer

Text ratio:2%

Words:130

Token eff.:Too Short

Sections/1K:115.4

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headingsavg 1.9w

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...

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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.

61/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

16/20

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

1/15

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.

4/100

474 mg

CO₂e / view

3.7 MB

Page Weight

15%

Cleaner Than

New Visitor

541 mg

Returning (cached)

271 mg

Annual (10K/mo)

56.8 kg

Emission Segments

Data Center

106 mg

Network

114 mg

Device

254 mg

Resource Breakdown

JavaScript

41.5 KB

Images

3.5 MB

CSS

182.5 KB

HTML

60.0 KB

Green Hosting Not Verified

KAGOYA JAPAN Inc.

8 recommendations

•Carbon footprint recommendation preview...

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Security Score

71%Good

Static / Informational

HTTPS

No WAF

88d

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/1.1

Valid From

01.06.2026

Valid Until

30.08.2026

Subject Alternative Names (1)

yabaitshirtsyasan.com

SHA-256 Fingerprint

22:2D:EB:26:7D:A6:D5:46:2E:2F:0E:E0:7E:A3:1D:B7:E7:29:D9:05...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

connection

Keep-Alive

content-type

text/html; charset=UTF-8

date

Tue, 02 Jun 2026 23:24:13 GMT

keep-alive

timeout=5, max=40

link

<https://yabaitshirtsyasan.com/wp-json/>; rel="https://api.w...

ms-author-via

DAV

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

dmail.kagoya.net

Domain Information

yabaitshirtsyasan.com

Domain Age

9y 11m

Created

13.06.2016

Expires

13.06.2026

Last Updated

28.05.2025

Registrar

GMO Internet Group, Inc. d/b/a Onamae.com

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.

68/100

Mobile Friendly3 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, minimum-scale=1

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

メイリオ

WCAG Fail

61/100

Readability

/30

24/30

18px · LH 1.40

Hierarchy

/20

10/20

0.67x ratio · ✓ H1→H6

WCAG

/25

11/25

1:1 min contrast

Performance

/25

16/25

1 font

Heading Font

メイリオ

Sans12px

Body Font

メイリオ

Sans18px

Contrast Ratio

1:1

48 issues

Reading Comfort

~46 CPL

Optimal (45–75)

12px

30px

20px

18px

Golden Ratio

Scale

✅ Excellent readability: 18px body text is ideal for all devices.

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

✅ Optimal line length: ~46 chars/line (ideal 45–75 CPL).

❌ Low contrast: 48 elements fail WCAG AA (min 1.0:1). Increase text/background contrast.

✅ 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.

Buy on MyFontsFlesch 62

Color Palette

4 unique colors

Dark

#282828

Other· 55.400000000000006%

#2e0606

Primary· 31.000000000000004%

#0e1520

Secondary· 10.6%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Social Media

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

20 Resources

Scripts

Styles

Async

Defer

Top Script Sources

yabaitshirtsyasan.com(5)platform.twitter.com(2)code.jquery.com(1)googletagmanager.com(1)kit.fontawesome.com(1)

Website Identity

yabaitshirtsyasan.com

[email protected]

9 years old

Location detected: 🇯🇵 Japanvia ip

GMO Internet Group, Inc. d/b/a Onamae.comja

Social Profiles

X (Twitter)Instagram TikTok

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Last analyzed: 02 Jun 2026 at 23:24

Historical Analysis & Change Tracking