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h-and-a.co.jp

https://h-and-a.co.jp· First analyzed 14 May 2026· Updated 14 May 2026
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h-and-a.co.jp
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Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

52.193.193.46

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Tokyo, Japan

ASN

AS16509

Organization

AWS EC2 (ap-northeast-1)

Server

Apache

Nameservers

dns01.muumuu-domain.com.dns02.muumuu-domain.com.

Performance

97

Core Web Vitals

Weight

First Contentful Paint
1.0 s10%
Speed Index
1.3 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1 MB
39 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms

Technology Stack

7 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
jQueryv3.3.1

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Web Servers

1
Apache

Languages

1
PHPv7.4.33

SEO Analysis

C62/100
16
9
0
Meta Tags11/15
Content9/12
Headings5/8
Technical15/25
E-E-A-T0/7
Images3/7
Links5/5
URL5/5
Social2/5
Freshness0/4
Mobile4/4
Indexability3/3
H
h-and-a.co.jph-and-a.co.jp

各種展覧会開催・運営の総合支援 株式会社ハート・アンド・アート

東京・大阪を拠点に、全国各地の展覧会の開催や運営を、独自のノウハウとネットワークで総合的にご支援。他にも画材販売やアート情報の発信により、アーティスト・クリエイターなど個人の方はもちろん、法人、美術団体までトータルにサポートします。

Title Length31 chars

Recommended: 50-60 chars (~192px / 580px)

Description Length116 chars

Recommended: 120-160 chars

Issues (0)

    9 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    4 URLs

    4 sub-sitemaps

    robots.txt

    4 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    18/100
    Poor
    5 10 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
    def. listsnavheader/footer
    Text ratio:14%
    Words:198
    Token eff.:Too Short
    Sections/1K:20.2
    Depth:3/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary
    Descriptive Headingsavg 1w
    Canonical URL
    Open Graph1/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (9)
    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.
    B
    77/100
    10
    Passed
    3
    Critical
    0
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    15/20
    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
    3/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    1 recommendation
    • •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.
    54/100
    B
    107 mg
    CO₂e / view
    1.0 MB
    Page Weight
    70%
    Cleaner Than
    New Visitor
    122 mg
    vs
    Returning (cached)
    61 mg
    Annual (10K/mo)
    12.8 kg
    Emission Segments
    Data Center
    5 mg
    Network
    31 mg
    Device
    70 mg
    Resource Breakdown
    JavaScript
    39.6 KB
    Images
    679.8 KB
    CSS
    317.3 KB
    Fonts
    918 B
    HTML
    19.4 KB
    Green Hosting Verified
    Amazon Web Services (AWS)
    Provider Match
    6 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    B

    Security Score

    71%Good
    Static / Informational

    HTTPS

    No WAF

    175d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Nijimo, Inc.

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.2

    HTTP Protocol

    HTTP/1.1

    Valid From

    06.10.2025

    Valid Until

    05.11.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    www.h-and-a.co.jph-and-a.co.jp

    SHA-256 Fingerprint

    58:96:A3:9F:75:15:B0:86:B1:3A:5E:7C:EE:EB:31:13:29:16:58:90...

    Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    connection
    Keep-Alive
    content-type
    text/html; charset=UTF-8
    date
    Thu, 14 May 2026 20:32:49 GMT
    keep-alive
    timeout=30, max=100
    link
    <https://h-and-a.co.jp/wp-json/>; rel="https://api.w.org/"
    server
    Apache
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    65

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (1)

    mail36.heteml.jp

    Domain Information

    h-and-a.co.jp

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    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
    56/100
    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,initial-scale=1
    1 recommendation
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Yu Gothic

    WCAG Partial
    64/100
    Readability
    /30
    24/30

    16px · LH 1.50

    Hierarchy
    /20
    11/20

    1x ratio

    WCAG
    /25
    14/25

    4.12:1 min contrast

    Performance
    /25
    15/25

    1 font · 1 req

    Heading Font

    Yu Gothic

    Sans16px

    Body Font

    Yu Gothic

    Sans16px

    Contrast Ratio

    4.12:1

    24 issues

    Reading Comfort

    ~50 CPL

    Optimal (45–75)
    16px
    h1
    22px
    h2
    18px
    h4
    16px
    p
    Major Second
    Scale

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

    ✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

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

    ⚠️ Partial contrast: 24 elements below WCAG AA threshold (min 4.1:1).

    ⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

    ⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

    GGoogle FontsBuy on MyFonts

    Color Palette

    7 unique colors
    5:1 AA Light
    #ffffff
    Background· 40.599999999999994%
    #63736d
    Other· 10.4%
    #b1a88b
    Primary· 13.4%
    #e0eada
    Secondary· 3%

    Business & Marketing Stack

    1 Tools Detected

    Growing

    Behavior Analytics

    1
    Google AnalyticsFree

    User behavior and product analytics

    1

    Categories

    1

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    8 Resources

    5
    Scripts
    3
    Styles
    3
    Async
    0
    Defer

    Top Script Sources

    googletagmanager.com(2)google-analytics.com(1)ajax.googleapis.com(1)cdnjs.cloudflare.com(1)

    Website Identity

    h-and-a.co.jp

    03-6457-0961

    東京営業所：〒134−0086　東京都江戸川区臨海町3-6-4　ヒューリック葛西臨海ビル507｜TEL：03-6457-0961FAX：03-6457-0962

    Location detected: 🇯🇵 Japanvia tld
    ja

    Sponsored

    Last analyzed: 14 May 2026 at 20:33

    Historical Analysis & Change Tracking