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otsuka.com

https://otsuka.com· First analyzed 24 May 2026· Updated 24 May 2026
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otsuka.com
Desktop screenshot of otsuka.com
Mobile screenshot of otsuka.com
Mobile

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Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

3.114.88.104

Site Location

🇯🇵 Japanvia ip

Server Location

🇯🇵 Tokyo, Japan

ASN

AS16509

Organization

AWS EC2 (ap-northeast-1)

Server

Apache

Nameservers

ns-819.awsdns-38.net.ns-1094.awsdns-08.org.ns-1748.awsdns-26.co.uk.ns-390.awsdns-48.com.

Performance

86

Core Web Vitals

Weight

First Contentful Paint
1.7 s10%
Speed Index
2.2 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.7 MB
90 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Amazon Web Services (AWS)

Technology Stack

6 Technologies Detected

CSS Frameworks

2
Tailwind CSS
Bootstrap

Libraries

1
jQueryv3.5.1

Analytics

1
Google Analytics

Tag Managers

1
Google Tag Manager

Web Servers

1
Apache

SEO Analysis

D55/100
15
7
1
Meta Tags9/15
Content9/12
Headings8/8
Technical11/21
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile1/4
Indexability3/3
O
otsuka.comotsuka.com

大塚ホールディングス株式会社

大塚ホールディングスのウェブサイトです。大塚ホールディングスは、‘Otsuka- people creating new products for better health worldwide’を理念とし、世界の人々の健康に貢献するグローバル価値創造企業グループを目指しています。

Title Length14 chars

Recommended: 50-60 chars (~86px / 580px)

Description Length141 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (20/35) — critical for accessibility and SEO

8 issues found

Upgrade to view details

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

F39/100
Bot Access
20/25
Machine Read.
7/25
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
navheader/footer
Text ratio:3%
Words:271
Token eff.:Too Short
Sections/1K:18.5
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary126w
Descriptive Headingsavg 1.4w
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...
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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.
B
77/100
13
Passed
2
Critical
1
Warnings
Images & Alt Text
10/20
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
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
11/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
6/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 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.
39/100
C
172 mg
CO₂e / view
1.7 MB
Page Weight
60%
Cleaner Than
New Visitor
197 mg
vs
Returning (cached)
99 mg
Annual (10K/mo)
20.7 kg
Emission Segments
Data Center
8 mg
Network
51 mg
Device
113 mg
Resource Breakdown
JavaScript
214.0 KB
Images
345.2 KB
CSS
1.1 MB
HTML
32.4 KB
Other
11.8 KB
Green Hosting Verified
Amazon Web Services (AWS)
Provider Match
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

31%Critical
Interactive

HTTPS

No WAF

268d

Certificate Details

Type

Extended Validation (EV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

15.01.2026

Valid Until

16.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.otsuka.comotsuka.com

SHA-256 Fingerprint

BC:0C:E0:85:C5:58:D9:3B:C9:60:C2:14:B6:B9:44:01:88:DC:35:B8...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

content-type
text/html; charset=UTF-8
date
Sun, 24 May 2026 05:11:47 GMT
server
Apache
x-frame-options
SAMEORIGIN
set-cookie
AWSALB
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

95

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

otsuka-com.mail.protection.outlook.com

Domain Information

otsuka.com

Domain Age
28y 7m

Created

07.10.1997

Expires

06.10.2026

Last Updated

24.11.2025

Registrar

1API GmbH

DNSSEC
Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner
OneTrust
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: OneTrust
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.
D
57/100
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, user-scalable=yes
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

ヒラギノ角ゴ Pro W3

WCAG AA
67/100
Readability
/30
18/30

16px · LH 1.60

Hierarchy
/20
14/20

2.12x ratio · ✓ H1→H6

WCAG
/25
20/25

4.94:1 min contrast

Performance
/25
15/25

3 fonts

Heading Font

ヒラギノ角ゴ Pro W3

Sans34px

Body Font

ヒラギノ角ゴ Pro W3

Sans16px

Contrast Ratio

4.94:1

WCAG AA (≥4.5:1)

Reading Comfort

~138 CPL

Too wide
34px
h1
34px
h2
16px
p
Minor Second
Scale

✅ Excellent readability: 16px body text is ideal for all devices.

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

❌ Very long lines: ~138 chars/line causes eye strain. Add max-width constraint.

❌ Very complex text: Flesch score 29/100. Consider shorter sentences and simpler words.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.9:1).

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

Buy on MyFontsFlesch 29

Color Palette

10 unique colors
7.9:1 AAA Light
#ffffff
Background· 45.199999999999996%
#525152
Other· 7.2%
#426bba
Primary· 0%
#394550
Secondary· 6.2%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

1
OneTrustEnterprise

Cookie consent and privacy compliance tools

2

Categories

3

Total Tools

1

Enterprise

0

Mid-Market

Assessment: Well-developed marketing technology stack

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Scripts & Styles

29 Resources

20
Scripts
9
Styles
5
Async
0
Defer

Top Script Sources

local(6)google.com(4)ssl4.eir-parts.net(4)cse.google.com(2)cdn.cookielaw.org(2)

Website Identity

otsuka.com

28 years old
Location detected: 🇯🇵 Japanvia ip
1API GmbH📧 Microsoft 365ja-JP

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Last analyzed: 24 May 2026 at 05:12

Historical Analysis & Change Tracking