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japanknowledge.com

https://japanknowledge.com· First analyzed 06 May 2026· Updated 06 May 2026
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japanknowledge.com
Desktop screenshot of japanknowledge.com
Mobile screenshot of japanknowledge.com
Mobile

Sponsored

Hosting Provider

Google Cloud Platform
cloud.google.com

IP Address

34.49.59.188

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Kansas City, United States

ASN

AS396982

Organization

Google Cloud

Server

Apache

Nameservers

ns-cloud-a3.googledomains.com.ns-cloud-a2.googledomains.com.ns-cloud-a1.googledomains.com.ns-cloud-a4.googledomains.com.

Performance

80

Core Web Vitals

Weight

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

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Google Cloud Platform

Technology Stack

11 Technologies Detected

Analytics

4
Google Analytics
Google Analytics 4
Facebook PixelMicrosoft Clarity

Libraries

1
jQueryv3.3.1

UI Components

1
Slick Carousel

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Tag Managers

1
Google Tag Manager

Advertising

1
Twitter Ads

Web Servers

1
Apache

SEO Analysis

C61/100
17
9
0
Meta Tags5/15
Content6/12
Headings8/8
Technical14/25
E-E-A-T3/7
Images4/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile4/4
Indexability3/3
J
japanknowledge.comjapanknowledge.com

辞書･事典検索サイト | ジャパンナレッジ

約1900冊以上（総額850万円）の膨大な辞書・事典などが使い放題のオンライン辞書・事典サイトです。

Title Length21 chars

Recommended: 50-60 chars (~128px / 580px)

Description Length50 chars

Recommended: 120-160 chars

Issues (0)

    9 issues found

    Upgrade to view details

    Crawlability

    Sitemap
    robots.txt

    7 rules

    Local SEO

    Local Search Readiness

    0/100
    Poor
    15 2

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

    Sponsored

    AI & LLM Readiness

    F38/100
    Bot Access
    20/25
    Machine Read.
    7/25
    Schema Data
    0/25
    Citation
    11/25

    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:165
    Token eff.:Too Short
    Sections/1K:115.2
    Depth:2/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary
    Descriptive Headingsavg 1.2w
    Canonical URL
    Open Graph3/3
    Twitter Card1/3
    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
    71/100
    10
    Passed
    5
    Critical
    1
    Warnings
    Images & Alt Text
    15/20
    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
    7/15
    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...
    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.
    32/100
    D
    221 mg
    CO₂e / view
    2.1 MB
    Page Weight
    50%
    Cleaner Than
    New Visitor
    253 mg
    vs
    Returning (cached)
    126 mg
    Annual (10K/mo)
    26.5 kg
    Emission Segments
    Data Center
    11 mg
    Network
    65 mg
    Device
    145 mg
    Resource Breakdown
    JavaScript
    514.4 KB
    Images
    1.3 MB
    CSS
    279.3 KB
    HTML
    43.2 KB
    Green Hosting Verified
    Google Cloud
    GWF Verified
    7 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    31%Critical
    Interactive

    HTTPS

    No WAF

    237d

    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

    HTTP Protocol

    HTTP/2+H3

    Valid From

    28.11.2025

    Valid Until

    30.12.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    *.japanknowledge.comjapanknowledge.com

    SHA-256 Fingerprint

    5D:1F:89:DA:7E:A5:69:0C:BD:C3:2F:D6:6D:FB:4E:A1:FC:D3:1A:18...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    alt-svc
    h3=":443"; ma=2592000
    cache-control
    🔴 No Cache(no-cache, must-revalidate, no-store)
    content-type
    text/html;charset=utf-8
    date
    Wed, 06 May 2026 16:39:03 GMT
    pragma
    no-cache
    server
    Apache
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    65

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (1)

    mx.securemx.jp

    Domain Information

    japanknowledge.com

    Domain Age
    26 years

    Created

    01.05.2000

    Expires

    01.05.2027

    Last Updated

    01.04.2024

    Registrar

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

    DNSSEC
    Not Enabled

    Privacy & Compliance

    CookieFirst

    Cookie Consent Banner
    CookieFirst
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: CookieFirst
    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.
    C
    68/100
    Mobile Friendly4 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
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Roboto

    WCAG Partial
    66/100
    Readability
    /30
    20/30

    16px · LH 1.80

    Hierarchy
    /20
    11/20

    1x ratio

    WCAG
    /25
    14/25

    1.34:1 min contrast

    Performance
    /25
    21/25

    System fonts

    Heading Font

    Roboto

    Sans16px

    Body Font

    Roboto

    Sans16px

    Contrast Ratio

    1.34:1

    2 issues

    Reading Comfort

    ~42 CPL

    Narrow lines
    16px
    h1
    40px
    h2
    32px
    h3
    24px
    h4
    16px
    p
    Perfect Fourth
    Scale

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

    ⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 1.3:1).

    ⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

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

    ❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

    ✅ System fonts: Zero font loading delay — best possible LCP impact.

    Color Palette

    9 unique colors
    16.72:1 AAA Light
    #ffffff
    Background· 57.99999999999999%
    #1d1e1d
    Other· 5.3%
    #cc4201
    Primary· 8.9%
    #a18678
    Secondary· 4.1%
    #943d1e
    Accent· 1.7%

    Business & Marketing Stack

    3 Tools Detected

    Advanced

    Behavior Analytics

    2
    Google AnalyticsFree
    Google Tag ManagerFree

    User behavior and product analytics

    Advertising

    1
    Twitter/X AdsMid-Market

    Ad platforms and retargeting pixels

    2

    Categories

    3

    Total Tools

    0

    Enterprise

    1

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Sponsored

    Scripts & Styles

    24 Resources

    19
    Scripts
    5
    Styles
    9
    Async
    3
    Defer

    Top Script Sources

    local(4)appimg.chatplus.jp(3)googletagmanager.com(2)app.chatplus.jp(2)consent.cookiefirst.com(2)

    Website Identity

    japanknowledge.com

    26 years old
    Location detected: 🇺🇸 United Statesvia ip
    GMO Internet Group, Inc. d/b/a Onamae.com

    Social Profiles

    FacebookX (Twitter)

    Sponsored

    Last analyzed: 06 May 2026 at 16:39

    Historical Analysis & Change Tracking