zenchin.com

https://zenchin.com· First analyzed 21 May 2026· Updated 21 May 2026

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zenchin.com

Mobile

Sponsored

Hosting Provider

HETEML

IP Address

157.7.44.220

Site Location

🇯🇵 Japanvia ip

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS7506

Organization

HETEML

Server

Apache

Nameservers

03.dnsv.jp.04.dnsv.jp.01.dnsv.jp.02.dnsv.jp.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.1 s10%

Speed Index

1.4 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.7 MB

106 requests

Image Optimization

Responsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

HETEML

Technology Stack

11 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel

Advertising

Google Ads Google AdSense

Libraries

UI Components

CSS Frameworks

Tag Managers

Web Servers

Languages

SEO Analysis

D51/100

Meta Tags8/15

Content9/12

Headings3/8

Technical8/21

E-E-A-T3/7

Images5/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile2/4

Indexability3/3

zenchin.comzenchin.com

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Title Length29 chars

Recommended: 50-60 chars (~175px / 580px)

Description Length104 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

11 issues found

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Local SEO

Local Search Readiness

3/100

Poor

1 14 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

D42/100

Bot Access

20/25

Machine Read.

12/25

Schema Data

0/25

Citation

10/25

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:6%

Words:338

Token eff.:Optimal

Sections/1K:224.9

Depth:4/5

Structured Data

No Schema

Citation Readiness

Opening Summary13w

Descriptive Headingsavg 1.3w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (9)

AI readiness recommendation preview...

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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.

70/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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

Semantic Structure

17/20

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.

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.

24/100

220 mg

CO₂e / view

1.7 MB

Page Weight

60%

Cleaner Than

New Visitor

251 mg

Returning (cached)

126 mg

Annual (10K/mo)

26.4 kg

Emission Segments

Data Center

49 mg

Network

53 mg

Device

118 mg

Resource Breakdown

JavaScript

493.6 KB

Images

1.0 MB

CSS

127.7 KB

HTML

15.1 KB

Other

66.1 KB

Green Hosting Not Verified

HETEML

7 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

235d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

Valid From

11.12.2025

Valid Until

12.01.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.zenchin.comzenchin.com

SHA-256 Fingerprint

B6:E2:38:B1:4E:BC:CF:26:66:1F:2C:1A:F2:C1:2F:62:28:EC:61:AA...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

none

content-encoding

📦 Gzip(gzip)

content-length

15195

content-type

text/html; charset=UTF-8

date

Thu, 21 May 2026 09:22:02 GMT

server

Apache

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

mail29.heteml.jp

Domain Information

zenchin.com

Domain Age

20y 10m

Created

21.07.2005

Expires

21.07.2026

Last Updated

05.07.2025

Registrar

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

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.

51/100

Not Mobile Friendly9 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.

3 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Hiragino Kaku Gothic ProN

WCAG Partial

50/100

Readability

/30

16/30

12px · LH 1.45

Hierarchy

/20

10/20

1.08x ratio · ✓ H1→H6

WCAG

/25

10/25

3.71:1 min contrast

Performance

/25

14/25

1 font

Heading Font

Hiragino Kaku Gothic ProN

Sans13px

Body Font

Hiragino Kaku Gothic ProN

Sans12px

Contrast Ratio

3.71:1

3 issues

Reading Comfort

~50 CPL

Optimal (45–75)

13px

12px

22px

12px

Augmented Fourth

Scale

❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

✅ Optimal line spacing: 1.45 ratio (ideal range 1.4–1.6).

✅ Optimal line length: ~50 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 3 elements below WCAG AA threshold (min 3.7:1).

✅ 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.

Buy on MyFonts

Color Palette

9 unique colors

Light

#ffffff

Background· 66.19999999999999%

#303546

Primary· 5.7%

#8597a3

Secondary· 5.5%

#ededdb

Secondary· 5.1%

#d4d9dc

Secondary· 4.9%

#c9c4ba

Border· 4.3%

#9f3d1d

Accent· 3.3%

#885f40

Secondary· 2.5%

Business & Marketing Stack

6 Tools Detected

Enterprise

CRM Systems

SalesforceEnterprise

Customer Relationship Management platforms

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Google AdsEnterprise

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Social Media

Facebook SDKFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

26 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(6)googletagmanager.com(3)pi.pardot.com(2)pagead2.googlesyndication.com(2)connect.facebook.net(2)

Website Identity

zenchin.com

20 years old

Location detected: 🇯🇵 Japanvia ip

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

Social Profiles

Facebook X (Twitter)

Sponsored

Last analyzed: 21 May 2026 at 09:22

Historical Analysis & Change Tracking