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cognitiveclass.ai

https://cognitiveclass.ai· First analyzed 15 May 2026· Updated 15 May 2026
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cognitiveclass.ai
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Mobile

Sponsored

Hosting Provider

IBM Cloud
ibm.com/cloud

IP Address

52.118.190.252

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Armonk, United States

ASN

AS36351

Organization

IBM Cloud

Nameservers

ns132.name.cloud.ibm.com.ns043.name.cloud.ibm.com.

Performance

98

Core Web Vitals

Weight

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

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
Infrastructure
Hosting
IBM Cloud

Technology Stack

6 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Frameworks

1
Alpine.js

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Email Marketing

1
Mailchimp

SEO Analysis

C66/100
19
7
0
Meta Tags9/15
Content11/12
Headings6/8
Technical15/25
E-E-A-T0/7
Images3/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
C
cognitiveclass.aicognitiveclass.ai

Home

Propel your career forward with free courses in AI, Cloud Computing, Full-Stack Development, Cybersecurity, Data Science and more. Earn certificates and badges!

Title Length4 chars

Recommended: 50-60 chars (~27px / 580px)

Description Length160 chars

Recommended: 120-160 chars

Issues (0)

    7 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    724 URLs

    robots.txt

    11 rules

    Local SEO

    Local Search Readiness

    3/100
    Poor
    1 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

    D47/100
    Bot Access
    20/25
    Machine Read.
    17/25
    Schema Data
    0/25
    Citation
    10/25

    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
    nav
    Text ratio:3%
    Words:546
    Token eff.:Optimal
    Sections/1K:14.7
    Depth:1/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary391w
    Descriptive Headingsavg 3.7w
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (10)
    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
    75/100
    11
    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
    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
    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.
    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.
    50/100
    B
    139 mg
    CO₂e / view
    1.1 MB
    Page Weight
    70%
    Cleaner Than
    New Visitor
    159 mg
    vs
    Returning (cached)
    80 mg
    Annual (10K/mo)
    16.7 kg
    Emission Segments
    Data Center
    31 mg
    Network
    33 mg
    Device
    75 mg
    Resource Breakdown
    JavaScript
    963.4 KB
    Images
    38.6 KB
    CSS
    50.1 KB
    HTML
    74.5 KB
    Green Hosting Not Verified
    IBM Cloud
    5 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    D

    Security Score

    46%Poor
    Interactive

    HTTPS

    No WAF

    85d

    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

    10.05.2026

    Valid Until

    08.08.2026

    Subject Alternative Names (6)

    apps.cognitiveclass.aicognitiveclass.aicompete.cognitiveclass.aicourses.cognitiveclass.aipreview.cognitiveclass.aistudio.cognitiveclass.ai

    SHA-256 Fingerprint

    3F:46:B0:8E:8A:DB:C3:21:53:78:EE:2E:DE:B8:19:0E:DC:28:08:7C...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🟡 0s(max-age=0, private, must-revalidate)
    content-length
    76037
    content-type
    text/html; charset=utf-8
    date
    Fri, 15 May 2026 06:18:01 GMT
    etag
    W/"dec45cc86b9c8ee72bfaffe35902f676"
    link
    </assets/tailwind-0fed5d1e971796ebcdcbcc336281c0951c13286837...
    Good Warning Issue

    Email Infrastructure

    Namecheap Email

    Score

    65

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (1)

    mx1.privateemail.com

    Domain Information

    cognitiveclass.ai

    Domain Age
    8y 5m

    Created

    16.12.2017

    Expires

    27.04.2027

    Last Updated

    04.03.2025

    Registrar

    101domain GRS Limited

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    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
    79/100
    Mobile Friendly23 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

    Apple Color Emoji

    WCAG Partial
    70/100
    Readability
    /30
    23/30

    16px · LH 1.50

    Hierarchy
    /20
    15/20

    3.38x ratio

    WCAG
    /25
    16/25

    1:1 min contrast

    Performance
    /25
    16/25

    2 fonts

    Heading Font

    Apple Color Emoji

    Sans54px

    Body Font

    Apple Color Emoji

    Sans16px

    Contrast Ratio

    1:1

    5 issues

    Reading Comfort

    ~34 CPL

    Narrow lines
    54px
    h1
    24px
    h2
    20px
    h3
    22px
    h4
    16px
    p

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

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

    ⚠️ Hard to read: Flesch score 33/100. Simplify sentences for wider reach.

    ⚠️ Partial contrast: 5 elements below WCAG AA threshold (min 1.0:1).

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

    ✅ Strong hierarchy: Headlines are 3.4x larger than body text.

    Buy on MyFontsFlesch 33

    Color Palette

    7 unique colors
    13.92:1 AAA Light
    #ffffff
    Background· 53.800000000000004%
    #2b2c32
    Secondary· 5.6%
    #ccd7d7
    Primary· 13.7%
    #596075
    Secondary· 6.7%
    #bcafa1
    Secondary· 4.5%

    Business & Marketing Stack

    2 Tools Detected

    Growing

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    1

    Categories

    2

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    8 Resources

    4
    Scripts
    4
    Styles
    2
    Async
    0
    Defer

    Top Script Sources

    googletagmanager.com(2)local(1)cdn.jsdelivr.net(1)

    Website Identity

    cognitiveclass.ai

    8 years old
    Location detected: 🇺🇸 United Statesvia ip
    101domain GRS Limited📧 Namecheap Emailen

    Sponsored

    Last analyzed: 15 May 2026 at 06:18

    Historical Analysis & Change Tracking