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cassiopaea.org

https://cassiopaea.org· First analyzed 14 May 2026· Updated 14 May 2026
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cassiopaea.org
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Mobile

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Hosting Provider

Hetzner
hetzner.com

IP Address

5.9.16.201

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Falkenstein, Germany

ASN

AS24940

Organization

Hetzner

Server

LiteSpeed

CDN

Cloudflare

WAF

Cloudflare

Nameservers

kim.ns.cloudflare.com.rick.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
506 ms10%
Speed Index
658 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
777 KB
35 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.9.4
cms
DiviCustom

Technology Stack

8 Technologies Detected

Plugins

3
Contact Form 7
Wpb Accordion Menu Or Category Pro
Jetpack

Libraries

1
jQueryv3.7.1

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

Web Servers

1
LiteSpeed

SEO Analysis

C63/100
18
11
0
Meta Tags10/15
Content10/12
Headings5/8
Technical19/25
E-E-A-T0/7
Images4/7
Links2/5
URL5/5
Social4/5
Freshness0/4
Mobile1/4
Indexability3/3
C
cassiopaea.orgcassiopaea.org

Cassiopaea | Home of the Cassiopaean Experiment

Home of the Cassiopaean Experiment

Title Length47 chars

Recommended: 50-60 chars (~288px / 580px)

Description Length34 chars

Recommended: 120-160 chars

Issues (0)

    11 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    2 URLs

    2 sub-sitemaps

    robots.txt

    7 rules

    Local SEO

    Local Search Readiness

    6/100
    Poor
    2 13 2

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

    Sponsored

    AI & LLM Readiness

    F37/100
    Bot Access
    20/25
    Machine Read.
    6/25
    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.txtinvalid
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    Text ratio:17%
    Words:9,840
    Token eff.:Excessive

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary18w
    Descriptive Headingsavg 8w
    Canonical URL
    Open Graph3/3
    Twitter Card1/3
    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.
    A
    80/100
    12
    Passed
    3
    Critical
    0
    Warnings
    Images & Alt Text
    20/20
    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.
    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.
    73/100
    A
    78 mg
    CO₂e / view
    776.7 KB
    Page Weight
    80%
    Cleaner Than
    New Visitor
    90 mg
    vs
    Returning (cached)
    45 mg
    Annual (10K/mo)
    9.4 kg
    Emission Segments
    Data Center
    4 mg
    Network
    23 mg
    Device
    52 mg
    Resource Breakdown
    JavaScript
    203.4 KB
    Images
    40.5 KB
    CSS
    476.1 KB
    Fonts
    2.6 KB
    HTML
    54.1 KB
    Green Hosting Verified
    Hetzner Online GmbH
    GWF Verified
    3 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    21%Critical
    Interactive

    HTTPS

    No WAF

    32d

    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

    Valid From

    18.03.2026

    Valid Until

    16.06.2026

    Subject Alternative Names (3)

    cassiopaea.orgmail.cassiopaea.orgwww.cassiopaea.org

    SHA-256 Fingerprint

    00:D7:90:FC:C1:FC:11:B8:E8:E5:33:71:90:5B:CC:0B:96:8D:61:8F...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    alt-svc
    h3=":443"; ma=2592000, h3-29=":443"; ma=2592000, h3-Q050=":4...
    content-encoding
    ⚡ Brotli(br)
    content-type
    text/html; charset=UTF-8
    date
    Thu, 14 May 2026 18:11:09 GMT
    link
    <https://cassiopaea.org/wp-json/>; rel="https://api.w.org/",...
    server
    LiteSpeed
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    70

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (1)

    mail.cassiopaea.org

    Domain Information

    cassiopaea.org

    Domain Age
    26y 9m

    Created

    25.07.1999

    Expires

    25.07.2033

    Last Updated

    30.06.2024

    Registrar

    Cloudflare, Inc.

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    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.
    D
    59/100
    Not Mobile Friendly38 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.
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Arial

    WCAG Partial
    65/100
    Readability
    /30
    21/30

    18px · LH 1.60

    Hierarchy
    /20
    9/20

    1.67x ratio

    WCAG
    /25
    17/25

    1.18:1 min contrast

    Performance
    /25
    18/25

    System fonts

    Heading Font

    Arial

    Sans30px

    Body Font

    Arial

    Sans18px

    Contrast Ratio

    1.18:1

    32 issues

    Reading Comfort

    Single Font Family

    left aligned
    30px
    h1
    22px
    h3
    18px
    p

    ✅ Excellent readability: 18px body text is ideal for all devices.

    ✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

    ⚠️ Hard to read: Flesch score 39/100. Simplify sentences for wider reach.

    ⚠️ Partial contrast: 32 elements below WCAG AA threshold (min 1.2:1).

    ❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

    ✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

    GGoogle FontsFluid Type (rem)Flesch 39

    Color Palette

    5 unique colors
    Dark
    #0b0b0b
    Background· 73.80000000000001%
    #2a5a5f
    Primary· 4.4%
    #cce0e2
    Secondary· 4.3%
    #122e32
    Secondary· 1.6%

    Business & Marketing Stack

    1 Tools Detected

    Growing

    Behavior Analytics

    1
    Google AnalyticsFree

    User behavior and product analytics

    1

    Categories

    1

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    20 Resources

    12
    Scripts
    8
    Styles
    1
    Async
    1
    Defer

    Top Script Sources

    cassiopaea.org(10)mc.yandex.ru(1)stats.wp.com(1)

    Website Identity

    cassiopaea.org

    26 years old
    Location detected: 🇩🇪 Germanyvia ip
    Cloudflare, Inc.en-US

    Sponsored

    Last analyzed: 14 May 2026 at 18:11

    Historical Analysis & Change Tracking