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4j.com

https://4j.com· First analyzed 11 May 2026· Updated 11 May 2026
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4j.com
Desktop screenshot of 4j.com
Mobile screenshot of 4j.com
Mobile

Sponsored

Hosting Provider

Cloudflare
cloudflare.com

IP Address

104.18.26.38

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

raina.ns.cloudflare.com.bart.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
368 ms10%
Speed Index
478 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.2 MB
128 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Cloudflare
CDN
Cloudflare

Technology Stack

10 Technologies Detected

Advertising

4
Google AdsGoogle AdSenseCriteoTaboola

Analytics

2
Google Analytics
Google Analytics 4

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Material Icons

Fonts

1
Google Fonts

CDN

1
Cloudflare

SEO Analysis

C63/100
18
9
0
Meta Tags9/15
Content10/12
Headings6/8
Technical18/25
E-E-A-T0/7
Images5/7
Links4/5
URL5/5
Social0/5
Freshness0/4
Mobile3/4
Indexability3/3
4
4j.com4j.com

Free Online Games - 4J.Com

Play Free Online Games On 4J.Com without annoying advertisement. New Games are added daily. Click To Play Games For FREE!

Title Length26 chars

Recommended: 50-60 chars (~165px / 580px)

Description Length121 chars

Recommended: 120-160 chars

Issues (0)

    9 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    1,893 URLs

    robots.txt

    2 rules

    Allows all crawlers

    Local SEO

    Local Search Readiness

    7/100
    Poor
    2 14 2

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

    Sponsored

    AI & LLM Readiness

    F32/100
    Bot Access
    20/25
    Machine Read.
    1/25
    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
    Text ratio:12%
    Words:8,872
    Token eff.:Excessive

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary33w
    Descriptive Headingsavg 4.5w
    Canonical URL
    Open Graph0/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (12)
    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.
    C
    69/100
    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
    12/20
    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
    11/15
    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.
    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.
    55/100
    B
    127 mg
    CO₂e / view
    1.2 MB
    Page Weight
    70%
    Cleaner Than
    New Visitor
    145 mg
    vs
    Returning (cached)
    72 mg
    Annual (10K/mo)
    15.2 kg
    Emission Segments
    Data Center
    6 mg
    Network
    37 mg
    Device
    83 mg
    Resource Breakdown
    JavaScript
    403.2 KB
    Images
    828.9 KB
    CSS
    8.0 KB
    Fonts
    6.2 KB
    HTML
    8.0 KB
    Other
    300 B
    Green Hosting Verified
    Cloudflare
    GWF Verified
    5 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    26%Critical
    Interactive

    HTTPS

    WAF

    87d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Google Trust Services

    Key Algorithm

    ECDSA (secp256r1) (256 bit)

    Signature

    ECDSA with SHA-256

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    08.05.2026

    Valid Until

    06.08.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    4j.com*.4j.com

    SHA-256 Fingerprint

    9A:60:D1:5F:83:7E:43:BA:30:87:4F:28:E4:B9:A3:68:CA:99:BD:79...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cf-cache-status
    DYNAMIC
    cf-ray🇩🇪 Frankfurt
    9fa00a7eab79e85a-FRA
    content-encoding
    📦 Gzip(gzip)
    content-type
    text/html; charset=UTF-8
    date
    Mon, 11 May 2026 09:08:46 GMT
    server
    cloudflare
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    90

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (1)

    _dc-mx.95c43a23b753.4j.com

    Domain Information

    4j.com

    Domain Age
    27y 3m

    Created

    26.01.1999

    Expires

    26.01.2027

    Last Updated

    12.11.2025

    Registrar

    GoDaddy.com, LLC

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Quantcast Choice

    Cookie Consent Banner
    Quantcast Choice
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: Quantcast Choice
    Privacy policy page linked
    Legitimate interest basis 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
    64/100
    Mobile Friendly15 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=1.0, maximum-scale=5.0, minimum-scale=1.0
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Open Sans + Verdana

    WCAG Fail
    70/100
    Readability
    /30
    22/30

    14px · LH 1.43

    Hierarchy
    /20
    14/20

    1.29x ratio · ✓ H1→H6

    WCAG
    /25
    14/25

    1:1 min contrast

    Performance
    /25
    20/25

    2 fonts · 2 req

    Heading Font

    Open Sans

    Sans18px

    Body Font

    Verdana

    Sans14px

    Contrast Ratio

    1:1

    50 issues

    Reading Comfort

    ~51 CPL

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

    ⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

    ✅ Optimal line spacing: 1.43 ratio (ideal range 1.4–1.6).

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

    ❌ Low contrast: 50 elements fail WCAG AA (min 1.0:1). Increase text/background contrast.

    ✅ 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.

    GGoogle FontsFlesch 54

    Color Palette

    11 unique colors
    5.51:1 AA Light
    #ffffff
    Background· 21.2%
    #6b695f
    Other· 5.7%
    #05394f
    Primary· 20.400000000000002%
    #161a1e
    Secondary· 12%
    #072535
    Accent· 8.4%
    #5e492e
    Secondary· 7.5%
    #473338
    Secondary· 7.3%
    #335458
    Secondary· 6.1%

    Business & Marketing Stack

    2 Tools Detected

    Advanced

    Behavior Analytics

    1
    Google AnalyticsFree

    User behavior and product analytics

    Advertising

    1
    Google AdsEnterprise

    Ad platforms and retargeting pixels

    2

    Categories

    2

    Total Tools

    1

    Enterprise

    0

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Ad Networks

    Google AdSenseSovrnPubMaticOpenXIndex Exchange

    Sponsored

    Scripts & Styles

    10 Resources

    8
    Scripts
    2
    Styles
    4
    Async
    0
    Defer

    Top Script Sources

    local(3)pagead2.googlesyndication.com(2)fundingchoicesmessages.google.com(2)googletagmanager.com(1)

    Website Identity

    4j.com

    27 years old
    Location detected: 🇨🇦 Canadavia ip
    GoDaddy.com, LLCen

    Sponsored

    Last analyzed: 11 May 2026 at 09:09

    Historical Analysis & Change Tracking