zuu.co.jp

https://zuu.co.jp· First analyzed 24 May 2026· Updated 24 May 2026

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zuu.co.jp

Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

3.174.113.83

Site Location

🇯🇵 Japanvia tld

Server Location

🇫🇮 Helsinki, Finland

ASN

AS16509

Organization

AWS CloudFront (GLOBAL)

Server

Nginx

CDN

CloudFront

Nameservers

ns-1345.awsdns-40.org.ns-1695.awsdns-19.co.uk.ns-63.awsdns-07.com.ns-898.awsdns-48.net.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.5 s10%

Speed Index

2.0 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

303 KB

26 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Platform

AWS CloudFront

CDN

CloudFront

Technology Stack

8 Technologies Detected

Analytics

CSS Frameworks

Icon Libraries

Tag Managers

Web Servers

SEO Analysis

C62/100

Meta Tags14/15

Content0/12

Headings3/8

Technical19/25

E-E-A-T5/7

Images4/7

Links2/5

URL5/5

Social3/5

Freshness0/4

Mobile4/4

Indexability3/3

zuu.co.jpzuu.co.jp

株式会社ZUU｜金融×ＩＴでエグゼクティブ層の資産管理と資産アドバイザーのビジネスを支援

「金融×ＩＴ」でエグゼクティブ層の資産管理と資産アドバイザーのビジネスを支援をする株式会社ZUUのコーポレートサイト。「ZUU online」「経営者online」「不動産online」「ZUU Advisors」「ZUU online US」等を運営。

Title Length44 chars

Recommended: 50-60 chars (~272px / 580px)

Description Length127 chars

Recommended: 120-160 chars

Issues (2)

• Very thin content (36 words). Search engines need substantial content for ranking.
• Missing H1 tag — every page should have exactly one H1

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

3,337 URLs

robots.txt

19 rules

Sitemap reference found

Local SEO

Local Search Readiness

21/100

Needs Work

5 14 1

Sponsored

AI & LLM Readiness

D43/100

Bot Access

20/25

Machine Read.

8/25

Schema Data

7/25

Citation

8/25

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.txtinvalid

llms-full.txt

Semantic HTML

Heading Hierarchy

navheader/footer

Text ratio:1%

Words:35

Token eff.:Too Short

Sections/1K:30

Depth:2/5

Structured Data

2 JSON-LD

Person×1.3WebSiteSearchAction

sameAs entity links

Citation Readiness

Opening Summary

Descriptive Headingsavg 1w

Canonical URL

Open Graph3/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

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.

67/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

13/20

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

0/15

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

4 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.

68/100

A+

31 mg

CO₂e / view

303.4 KB

Page Weight

90%

Cleaner Than

New Visitor

35 mg

Returning (cached)

18 mg

Annual (10K/mo)

3.7 kg

Emission Segments

Data Center

2 mg

Network

9 mg

Device

20 mg

Resource Breakdown

JavaScript

43.5 KB

Images

201.2 KB

CSS

51.2 KB

HTML

7.6 KB

Green Hosting Verified

Amazon Web Services (AWS)

Provider Match

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

76%Good

Interactive

HTTPS

No WAF

137d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

25.03.2026

Valid Until

08.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

zuu.co.jpwww.zuu.co.jp

SHA-256 Fingerprint

73:A4:19:DA:81:6C:3D:64:74:B9:F6:DD:AB:B4:2E:46:DD:0D:34:76...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

content-encoding

📦 Gzip(gzip)

content-length

7445

content-security-policy

upgrade-insecure-requests

content-type

text/html; charset=utf-8

date

Sun, 24 May 2026 01:21:10 GMT

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

MX Records (5)

aspmx.l.google.com

alt1.aspmx.l.google.com

alt2.aspmx.l.google.com

aspmx2.googlemail.com

+1 more

Domain Information

zuu.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.

65/100

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

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Hiragino Kaku Gothic Pro

WCAG AAA

68/100

Readability

/30

21/30

16px · LH 1.70

Hierarchy

/20

7/20

WCAG

/25

24/25

17.5:1 min contrast

Performance

/25

16/25

1 font

Heading Font

Hiragino Kaku Gothic Pro

Sans

Body Font

Hiragino Kaku Gothic Pro

Sans16px

Contrast Ratio

17.5:1

WCAG AAA (≥7:1)

Reading Comfort

Single Font Family

left aligned

42px

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

⚠️ Hard to read: Flesch score 44/100. Simplify sentences for wider reach.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 17.5:1).

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

✅ Lean font stack: 1 font families keeps load times fast.

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFontsFlesch 44

Color Palette

3 unique colors

17.5:1 AAA Light

#f9f9f9

Background· 70.10000000000001%

#141414

Text· 25.300000000000004%

Business & Marketing Stack

3 Tools Detected

Enterprise

CRM Systems

SalesforceEnterprise

Customer Relationship Management platforms

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

15 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(4)pi.pardot.com(2)unpkg.com(1)cse.google.com(1)google-analytics.com(1)

Website Identity

株式会社ZUU

Corporation

0344059086

青葉台3-6-28 住友不動産青葉台タワー9F, 目黒区

1530042, 目黒区, 東京都

Location detected: 🇯🇵 Japanvia tld

📧 Google Workspaceen

Social Profiles

Facebook X (Twitter)

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Last analyzed: 24 May 2026 at 01:21

Historical Analysis & Change Tracking