Back to Search
sundaygx.com favicon

sundaygx.com

https://sundaygx.com· First analyzed 03 Jun 2026· Updated 03 Jun 2026
Export
sundaygx.com
Desktop screenshot of sundaygx.com
Mobile screenshot of sundaygx.com
Mobile

Sponsored

Hosting Provider

interQ

IP Address

118.27.111.6

Site Location

🇯🇵 Japanvia ip

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS7506

Organization

interQ

Server

Nginx

Nameservers

ns-345.awsdns-43.com.ns-952.awsdns-55.net.ns-1153.awsdns-16.org.ns-1865.awsdns-41.co.uk.

Performance

96

Core Web Vitals

Weight

First Contentful Paint
1.0 s10%
Speed Index
1.4 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.4 MB
114 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv5.6
cms
cms202008Custom
by Shogakukan

Technology Stack

8 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Facebook Pixel

Libraries

1
jQueryv1.11.0

UI Components

1
Slick Carousel

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Web Servers

1
Nginx

SEO Analysis

C68/100
21
6
0
Meta Tags5/15
Content9/12
Headings8/8
Technical16/25
E-E-A-T3/7
Images5/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
S
sundaygx.comsundaygx.com

サンデーGENE-X｜小学館

サンデーGXは毎月19日ごろ発売!!

Title Length14 chars

Recommended: 50-60 chars (~89px / 580px)

Description Length18 chars

Recommended: 120-160 chars

Issues (0)

    6 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    224 URLs

    224 sub-sitemaps

    robots.txt

    5 rules

    Sitemap reference found

    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

    F39/100
    Bot Access
    20/25
    Machine Read.
    8/25
    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
    def. listsnavheader/footer
    Text ratio:4%
    Words:273
    Token eff.:Too Short
    Sections/1K:22
    Depth:3/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary14w
    Descriptive Headingsavg 1w
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    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
    72/100
    11
    Passed
    4
    Critical
    2
    Warnings
    Images & Alt Text
    15/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    17/20
    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
    6/15
    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.
    22/100
    E
    310 mg
    CO₂e / view
    2.4 MB
    Page Weight
    30%
    Cleaner Than
    New Visitor
    355 mg
    vs
    Returning (cached)
    177 mg
    Annual (10K/mo)
    37.2 kg
    Emission Segments
    Data Center
    69 mg
    Network
    74 mg
    Device
    167 mg
    Resource Breakdown
    JavaScript
    70.5 KB
    Images
    2.0 MB
    CSS
    409.7 KB
    HTML
    8.4 KB
    Green Hosting Not Verified
    interQ
    7 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    D

    Security Score

    41%Poor
    Interactive

    HTTPS

    No WAF

    30d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    04.04.2026

    Valid Until

    03.07.2026

    Subject Alternative Names (2)

    sundaygx.comwww.sundaygx.com

    SHA-256 Fingerprint

    E2:6D:5D:54:70:D0:D4:44:74:E9:72:21:F3:27:B7:90:E5:AE:5D:C3...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    content-encoding
    ⚡ Brotli(br)
    content-type
    text/html; charset=UTF-8
    date
    Wed, 03 Jun 2026 01:17:35 GMT
    link
    <https://sundaygx.com/wp-json/>; rel="https://api.w.org/"
    server
    nginx
    x-b-cache
    BYPASS
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    45

    SPF
    DKIM
    DMARC

    MX Records (1)

    asahi.stacksystem.jp

    Domain Information

    sundaygx.com

    Domain Age
    15y 3m

    Created

    09.02.2011

    Expires

    09.02.2028

    Last Updated

    13.01.2026

    Registrar

    Japan Registry Services Co., Ltd.

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Privacy policy page linked
    Data Protection Officer mentioned

    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
    61/100
    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,user-scalable=no
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    ヒラギノ角ゴ ProN + 游ゴシック Medium

    WCAG Partial
    57/100
    Readability
    /30
    14/30

    12px · LH 1.20

    Hierarchy
    /20
    14/20

    1.47x ratio · ✓ H1→H6

    WCAG
    /25
    14/25

    1:1 min contrast

    Performance
    /25
    15/25

    2 fonts · 2 req

    Heading Font

    ヒラギノ角ゴ ProN

    Sans18px

    Body Font

    游ゴシック Medium

    Sans12px

    Contrast Ratio

    1:1

    15 issues

    Reading Comfort

    ~45 CPL

    Optimal (45–75)
    18px
    h1
    20px
    h2
    14px
    h3
    12px
    p

    ❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

    ⚠️ Tight line spacing (1.20). Increase to 1.4–1.6 for better readability.

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

    ⚠️ Partial contrast: 15 elements below WCAG AA threshold (min 1.0:1).

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

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

    Buy on MyFonts

    Color Palette

    11 unique colors
    21:1 AAA Dark
    #000000
    Background· 35.199999999999996%
    #ffffff
    Text· 20.5%
    #8298a1
    Primary· 6.2%
    #906162
    Secondary· 6%
    #c5a99b
    Secondary· 5.5%
    #dcdbd1
    Secondary· 4.6%
    #8b131e
    Accent· 3.8%

    Business & Marketing Stack

    5 Tools Detected

    Enterprise

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    Advertising

    1
    Facebook PixelMid-Market

    Ad platforms and retargeting pixels

    Social Media

    2
    Facebook SDKFree
    Twitter/X WidgetsFree

    Social widgets and sharing tools

    3

    Categories

    5

    Total Tools

    0

    Enterprise

    1

    Mid-Market

    Assessment: Sophisticated marketing and sales technology infrastructure

    Sponsored

    Scripts & Styles

    29 Resources

    20
    Scripts
    9
    Styles
    11
    Async
    1
    Defer

    Top Script Sources

    sundaygx.com(6)googletagmanager.com(5)connect.facebook.net(2)platform.twitter.com(2)in.treasuredata.com(1)

    Website Identity

    sundaygx.com

    15 years old
    Location detected: 🇯🇵 Japanvia ip
    Japan Registry Services Co., Ltd.

    Social Profiles

    X (Twitter)

    Sponsored

    Last analyzed: 03 Jun 2026 at 01:18

    Historical Analysis & Change Tracking

    sundaygx.com Technology Stack - Built With jQuery, Slick Carousel, Tailwind CSS, Google Analytics, Google Analytics 4 | StackOptic | StackOptic