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codegym.cc

https://codegym.cc· First analyzed 14 May 2026· Updated 14 May 2026
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codegym.cc
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Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

18.210.138.7

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Ashburn, United States

ASN

AS14618

Organization

AWS EC2 (us-east-1)

Server

Nginx

Nameservers

ns-1737.awsdns-25.co.uk.ns-431.awsdns-53.com.ns-1000.awsdns-61.net.ns-1369.awsdns-43.org.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
475 ms10%
Speed Index
618 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
440 KB
81 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Medium

Technology Stack

8 Technologies Detected

Analytics

4
Google Analytics
Google Analytics 4
Facebook PixelMicrosoft Clarity

Other

1
Lottie

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Web Servers

1
Nginx

SEO Analysis

B79/100
23
7
0
Meta Tags12/15
Content10/12
Headings8/8
Technical24/25
E-E-A-T2/7
Images5/7
Links5/5
URL5/5
Social2/5
Freshness0/4
Mobile3/4
Indexability3/3
C
codegym.cccodegym.cc

Learn Java - Online Java Course

CodeGym is an online course to learn Java. For beginners and for experienced programmers. Contains a Java tutorial and 1200 Java practice tasks!

Title Length31 chars

Recommended: 50-60 chars (~190px / 580px)

Description Length144 chars

Recommended: 120-160 chars

Issues (0)

    7 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    19 URLs

    19 sub-sitemaps

    robots.txt

    174 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    25/100
    Needs Work
    7 11 1

    Sponsored

    AI & LLM Readiness

    D50/100
    Bot Access
    20/25
    Machine Read.
    7/25
    Schema Data
    5/25
    Citation
    18/25

    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:4%
    Words:1,569
    Token eff.:Optimal

    Structured Data

    1 JSON-LD
    Person×1.3Organization×1.1

    Citation Readiness

    Opening Summary
    Descriptive Headingsavg 7w
    Canonical URL
    Open Graph3/3
    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
    76/100
    12
    Passed
    4
    Critical
    1
    Warnings
    Images & Alt Text
    15/20
    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
    14/15
    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
    7/15
    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.
    77/100
    A
    44 mg
    CO₂e / view
    439.7 KB
    Page Weight
    90%
    Cleaner Than
    New Visitor
    51 mg
    vs
    Returning (cached)
    25 mg
    Annual (10K/mo)
    5.3 kg
    Emission Segments
    Data Center
    2 mg
    Network
    13 mg
    Device
    29 mg
    Resource Breakdown
    JavaScript
    247.6 KB
    Images
    73.1 KB
    CSS
    54.5 KB
    Fonts
    32.6 KB
    HTML
    31.9 KB
    Green Hosting Verified
    Amazon Web Services (AWS)
    Provider Match
    3 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    A+

    Security Score

    96%Excellent
    Static / Informational

    HTTPS

    No WAF

    82d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Sectigo Limited

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    29.07.2025

    Valid Until

    04.08.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    *.codegym.cccodegym.cc

    SHA-256 Fingerprint

    88:0C:48:EA:96:ED:D6:14:6A:87:02:9F:32:93:54:35:02:89:63:38...

    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🔴 No Cache(no-store, no-cache, must-revalidate, proxy-revalidate, max-a...)
    content-encoding
    ⚡ Brotli(br)
    content-security-policy
    default-src 'self' 'unsafe-inline' 'unsafe-eval' https: wss:...
    content-type
    text/html
    date
    Thu, 14 May 2026 16:53:03 GMT
    etag
    W/"69d4b209-37394"
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    98

    SPF
    DKIM
    DMARC

    DMARC Policy

    Quarantine (Moderate)

    MX Records (1)

    codegym-cc.mail.protection.outlook.com

    Domain Information

    codegym.cc

    Domain Age
    7y 10m

    Created

    03.07.2018

    Expires

    03.07.2027

    Last Updated

    20.06.2025

    Registrar

    GoDaddy.com, LLC

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookiebot

    Cookie Consent Banner
    Cookiebot
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: Cookiebot

    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
    72/100
    Mobile Friendly520 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
    1 recommendation
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Montserrat Variable

    WCAG Partial
    70/100
    Readability
    /30
    20/30

    16px · LH 1.15

    Hierarchy
    /20
    20/20

    3.75x ratio · ✓ H1→H6

    WCAG
    /25
    10/25

    1.25:1 min contrast

    Performance
    /25
    20/25

    1 font · 2 req

    Heading Font

    Montserrat Variable

    Sans60px

    Body Font

    Montserrat Variable

    Sans16px

    Contrast Ratio

    1.25:1

    5 issues

    Reading Comfort

    Single Font Family

    left aligned
    60px
    h1
    38px
    h2
    21px
    h3

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

    ⚠️ Tight line spacing (1.15). Increase to 1.4–1.6 for better readability.

    ⚠️ Hard to read: Flesch score 43/100. Simplify sentences for wider reach.

    ⚠️ Partial contrast: 5 elements below WCAG AA threshold (min 1.2:1).

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

    ✅ Strong hierarchy: Headlines are 3.8x larger than body text.

    Buy on MyFontsFlesch 43

    Color Palette

    7 unique colors
    Dark
    #2d3135
    Border· 5.9%
    #0d1017
    Background· 73.59999999999998%
    #cef568
    Primary· 11%
    #1c1f24
    Secondary· 4.2%
    #697057
    Secondary· 3.6%
    #ebfdbc
    Primary· 1.5%

    Business & Marketing Stack

    7 Tools Detected

    Enterprise

    Customer Support

    1
    IntercomMid-Market

    Live chat and helpdesk tools

    Behavior Analytics

    3
    Google Tag ManagerFree
    Google AnalyticsFree
    Microsoft ClarityFree

    User behavior and product analytics

    Advertising

    1
    Facebook PixelMid-Market

    Ad platforms and retargeting pixels

    Privacy & Cookies

    1
    CookiebotMid-Market

    Cookie consent and privacy compliance tools

    Social Media

    1
    Facebook SDKFree

    Social widgets and sharing tools

    5

    Categories

    7

    Total Tools

    0

    Enterprise

    3

    Mid-Market

    Assessment: Sophisticated marketing and sales technology infrastructure

    Sponsored

    Scripts & Styles

    17 Resources

    11
    Scripts
    6
    Styles
    10
    Async
    0
    Defer

    Top Script Sources

    consent.cookiebot.com(2)scripts.clarity.ms(2)connect.facebook.net(2)googletagmanager.com(2)clarity.ms(1)

    Website Identity

    Learn Java Online in a Fun Way

    Course

    You can code. No matter your age, previous knowledge, or origin. It's like riding a bicycle: all you need is to practice. And CodeGym, the online Java programming course, is your bicycle with training wheels. Practice in Java coding without pressure, at your pace, from the first lessons. Try to lear

    7 years old
    Location detected: 🇺🇸 United Statesvia ip
    GoDaddy.com, LLC📧 Microsoft 365en

    Sponsored

    Last analyzed: 14 May 2026 at 16:53

    Historical Analysis & Change Tracking