Back to Search
g123.jp favicon

g123.jp

https://g123.jp· First analyzed 12 May 2026· Updated 12 May 2026
Export
g123.jp
Desktop screenshot of g123.jp
Mobile screenshot of g123.jp
Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

18.165.122.53

Site Location

🇯🇵 Japanvia tld

Server Location

🇮🇪 Dublin, Ireland

ASN

AS16509

Organization

AWS CloudFront (GLOBAL)

CDN

CloudFront

Nameservers

ns-517.awsdns-00.net.ns-117.awsdns-14.com.ns-1334.awsdns-38.org.ns-1923.awsdns-48.co.uk.

Performance

98

Core Web Vitals

Weight

First Contentful Paint
927 ms10%
Speed Index
1.2 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.5 MB
135 requests

Image Optimization

Lazy LoadWebPAVIFResponsiveImageKitVercel Image Optimization
0–49
50–89
90–100

Architecture Stack

Hybrid
🔀 Hybrid
Frontend
Framework
Next.js
Styling
Tailwind CSS
Infrastructure
Platform
AWS CloudFront
CDN
CloudFront

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

6 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Microsoft Clarity

Meta Frameworks

1
Next.js

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

SEO Analysis

A80/100
25
5
0
Meta Tags14/15
Content8/12
Headings6/8
Technical22/25
E-E-A-T2/7
Images7/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile3/4
Indexability3/3
G
g123.jpg123.jp

Play Free Anime Browser Games | No Download Needed - G123

G123 - Instantly play free online browser games on any device without downloading! Explore top Japanese anime and manga adaptations, and dive into the latest...

Description truncated.
Title Length57 chars

Recommended: 50-60 chars (~359px / 580px)

Description Length181 chars

Recommended: 120-160 chars

Issues (0)

    5 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    4 URLs

    robots.txt

    5 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    14/100
    Poor
    4 13 1

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

    Sponsored

    AI & LLM Readiness

    D56/100
    Bot Access
    20/25
    Machine Read.
    17/25
    Schema Data
    6/25
    Citation
    13/25

    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
    Text ratio:2%
    Words:1,238
    Token eff.:Optimal

    Structured Data

    4 JSON-LD
    Person×1.3WebSite
    sameAs entity links

    Citation Readiness

    Opening Summary250w
    Descriptive Headingsavg 5.1w
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (8)
    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.
    A
    83/100
    12
    Passed
    2
    Critical
    0
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    18/20
    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
    4/15
    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.
    64/100
    C
    160 mg
    CO₂e / view
    1.5 MB
    Page Weight
    60%
    Cleaner Than
    New Visitor
    182 mg
    vs
    Returning (cached)
    91 mg
    Annual (10K/mo)
    19.1 kg
    Emission Segments
    Data Center
    8 mg
    Network
    47 mg
    Device
    105 mg
    Resource Breakdown
    Images
    1.4 MB
    CSS
    72.1 KB
    HTML
    111.6 KB
    Other
    9.0 KB
    Green Hosting Verified
    Amazon Web Services (AWS)
    Provider Match
    4 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    A

    Security Score

    81%Very Good
    Static / Informational

    HTTPS

    No WAF

    127d

    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

    Valid From

    20.08.2025

    Valid Until

    16.09.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    g123.jp*.g123.jp

    SHA-256 Fingerprint

    90:36:2C:B7:4E:6E:6B:65:A7:82:57:A9:60:79:50:FE:26:4F:2A:0D...

    Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🟡 1800s(public, max-age=1800, stale-while-revalidate=7200)
    content-encoding
    📦 Gzip(gzip)
    content-security-policy
    default-src 'self'; script-src 'self' 'unsafe-inline' 'unsaf...
    content-type
    text/html; charset=utf-8
    date
    Tue, 12 May 2026 12:34:03 GMT
    link
    <https://platform-sc.g123.jp/web/_next/static/media/e4af272c...
    Good Warning Issue

    Email Infrastructure

    Amazon SES

    Score

    50

    SPF
    DKIM
    DMARC

    MX Records (1)

    inbound-smtp.us-east-1.amazonaws.com

    Domain Information

    g123.jp

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Termly

    Cookie Consent Banner
    Termly
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: Termly
    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.
    B
    73/100
    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, viewport-fit=cover
    1 recommendation
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Inter

    WCAG AAA
    68/100
    Readability
    /30
    18/30

    12px · LH 1.50

    Hierarchy
    /20
    12/20

    1x ratio · ✓ H1→H6

    WCAG
    /25
    23/25

    7:1 min contrast

    Performance
    /25
    15/25

    1 font · 1 req

    Heading Font

    Inter

    Sans12px

    Body Font

    Inter

    Sans12px

    Contrast Ratio

    7:1

    WCAG AAA (≥7:1)

    Reading Comfort

    ~46 CPL

    Optimal (45–75)
    12px
    h1
    20px
    h2
    14px
    h3
    12px
    p
    Minor Third
    Scale

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

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

    ✅ Optimal line length: ~46 chars/line (ideal 45–75 CPL).

    ⚠️ Hard to read: Flesch score 50/100. Simplify sentences for wider reach.

    ✅ WCAG AAA contrast: All text meets 7:1 ratio (min 7.0:1).

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

    Buy on MyFontsFlesch 50

    Color Palette

    8 unique colors
    12.43:1 AAA Light
    #fafafa
    Background· 51.699999999999996%
    #303136
    Text· 16.6%
    #a26f8d
    Primary· 6.7%
    #b099a4
    Secondary· 6%
    #563752
    Secondary· 5%
    #dfd4d7
    Secondary· 4.8%
    #201f2f
    Secondary· 2.1%

    Business & Marketing Stack

    4 Tools Detected

    Advanced

    Behavior Analytics

    3
    Google Tag ManagerFree
    Google AnalyticsFree
    Microsoft ClarityFree

    User behavior and product analytics

    Privacy & Cookies

    1
    TermlySMB

    Cookie consent and privacy compliance tools

    2

    Categories

    4

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Sponsored

    Scripts & Styles

    25 Resources

    19
    Scripts
    6
    Styles
    14
    Async
    0
    Defer

    Top Script Sources

    platform-sc.g123.jp(6)googletagmanager.com(3)clarity.ms(2)s.yimg.jp(2)scripts.clarity.ms(1)

    Website Identity

    G123

    G123

    Brand

    [{'@value': 'G123はCTW株式会社が運営するブラウザゲームプラットフォームです。会員登録やダウンロード不要で、人気アニメ作品を題材にした本格的なブラウザゲームを楽しめます。', '@language': 'ja'}, {'@value': 'G123 is a browser game platform operated by CTW Inc. It allows users to play officially licensed anime-based browser games instantly, with no registration or downloads req

    g123.jp/
    Location detected: 🇯🇵 Japanvia tld
    📧 Amazon SESenEst. 2013

    Sponsored

    Last analyzed: 12 May 2026 at 12:34

    Historical Analysis & Change Tracking

    g123.jp Technology Stack - Built With Next.js, Tailwind CSS, Google Analytics, Google Analytics 4, Google Tag Manager | StackOptic