dhc.co.jp

https://dhc.co.jp· First analyzed 04 May 2026· Updated 04 May 2026

Export

dhc.co.jp

Mobile

Sponsored

Hosting Provider

NTT Communications Corporation

IP Address

180.10.249.53

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Minamishinagawa, Japan

ASN

AS4713

Organization

NTT Communications Corporation

Server

Apache

Nameservers

ns01.dhc.co.jp.ns02.dhc.co.jp.ek-mail01.cobuy.jp.ek-mail02.cobuy.jp.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.5 s10%

Speed Index

1.9 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

12.6 MB

250 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

NTT Communications Corporation

Technology Stack

13 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel Microsoft Clarity

Advertising

Twitter Ads TikTok Pixel Microsoft Advertising Criteo

Libraries

CSS Frameworks

Tag Managers

Reviews

Web Servers

SEO Analysis

C64/100

Meta Tags10/15

Content10/12

Headings3/8

Technical18/25

E-E-A-T0/7

Images4/7

Links5/5

URL5/5

Social0/5

Freshness2/4

Mobile4/4

Indexability3/3

dhc.co.jpdhc.co.jp

化粧品・健康食品・ダイエットの通販｜DHC公式オンラインショップ

DHC公式通販サイト。スキンケア、ダイエット、サプリメント、アパレルなど税込3,780円以上で送料無料。期間限定セールやポイントサービス実施中！

Title Length32 chars

Recommended: 50-60 chars (~198px / 580px)

Description Length72 chars

Recommended: 120-160 chars

Issues (1)

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

10 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

3 URLs

3 sub-sitemaps

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

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

F34/100

Bot Access

20/25

Machine Read.

7/25

Schema Data

0/25

Citation

7/25

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

Text ratio:3%

Words:2,589

Token eff.:Optimal

Sections/1K:0.8

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headingsavg 1w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (12)

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.

62/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

11/20

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

7/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

4 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.

18/100

1.60 g

CO₂e / view

12.6 MB

Page Weight

Cleaner Than

New Visitor

1.83 g

Returning (cached)

913 mg

Annual (10K/mo)

191.7 kg

Emission Segments

Data Center

357 mg

Network

383 mg

Device

857 mg

Resource Breakdown

JavaScript

329.4 KB

Images

11.9 MB

CSS

385.8 KB

HTML

52.5 KB

Green Hosting Not Verified

NTT Communications Corporation

8 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

31%Critical

Interactive

HTTPS

No WAF

259d

Certificate Details

Type

Extended Validation (EV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

18.12.2025

Valid Until

18.01.2027

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.dhc.co.jp

SHA-256 Fingerprint

3A:29:F2:43:76:15:7F:69:D1:88:1B:F3:15:18:8B:3D:34:1C:CE:2D...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

cache-control

🟡 4 Hours(max-age=14400)

connection

content-length

477

content-type

text/html

date

Mon, 04 May 2026 22:38:26 GMT

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

dhc-co-jp.mail.protection.outlook.com

Domain Information

dhc.co.jp

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.

75/100

Mobile Friendly7 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

1 recommendation

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Arial

WCAG Partial

64/100

Readability

/30

20/30

18px · LH 1.45

Hierarchy

/20

8/20

WCAG

/25

15/25

4.2:1 min contrast

Performance

/25

21/25

System fonts

Heading Font

Arial

Sans

Body Font

Arial

Sans18px

Contrast Ratio

4.2:1

9 issues

Reading Comfort

~1697507 CPL

Too wide

24px

22px

18px

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

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

❌ Very long lines: ~1697507 chars/line causes eye strain. Add max-width constraint.

⚠️ Hard to read: Flesch score 40/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 9 elements below WCAG AA threshold (min 4.2:1).

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

Fluid TypeFlesch 40

Color Palette

11 unique colors

Light

#ffffff

Background· 47.1%

#d11732

Primary· 6.6%

#cdd9ca

Secondary· 6.6%

#8fc1b0

Secondary· 6.1%

#c49991

Secondary· 5.7%

#77949d

Secondary· 5.7%

#24162a

Secondary· 5.3%

#e9e5bb

Accent· 5%

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

Google AnalyticsFree

Microsoft ClarityFree

Google Tag ManagerFree

User behavior and product analytics

Advertising

TikTok PixelMid-Market

Ad platforms and retargeting pixels

Reviews & Social Proof

YotpoMid-Market

Customer reviews and testimonials

Sponsored

Scripts & Styles

24 Resources

Scripts

Styles

Async

Defer

Top Script Sources

cdn.hera.d2c.ne.jp(9)analytics.tiktok.com(3)cdn.microad.jp(3)googletagmanager.com(2)d.line-scdn.net(2)

Website Identity

dhc.co.jp

Location detected: 🇯🇵 Japanvia tld

📧 Microsoft 365ja

Social Profiles

Facebook X (Twitter)Instagram YouTube TikTok

Sponsored

Last analyzed: 04 May 2026 at 22:39

Historical Analysis & Change Tracking