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ardalpha.de

https://ardalpha.de· First analyzed 29 Apr 2026· Updated 29 Apr 2026
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ardalpha.de
Desktop screenshot of ardalpha.de
Mobile screenshot of ardalpha.de
Mobile

Sponsored

Hosting Provider

Bayerischer Rundfunk

IP Address

194.187.162.174

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Augsburg, Germany

ASN

AS35739

Organization

Bayerischer Rundfunk

Server

Apache

Nameservers

dns-3.br.de.ns-1.br.de.dns-2.br.de.

Performance

85

Core Web Vitals

Weight

First Contentful Paint
1.8 s10%
Speed Index
2.4 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
19.2 MB
250 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Bayerischer Rundfunk

Technology Stack

4 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Analytics

1
Google Analytics

Tag Managers

1
Google Tag Manager

Web Servers

1
Apache

SEO Analysis

A87/100
26
4
0
Meta Tags14/15
Content10/12
Headings8/8
Technical20/25
E-E-A-T5/7
Images4/7
Links5/5
URL5/5
Social5/5
Freshness4/4
Mobile4/4
Indexability3/3
A
ardalpha.deardalpha.de

ARD alpha: Lernen fürs Leben und die Welt verstehen | ARD alpha

ARD alpha macht euch fit für Schule, Ausbildung, Uni, Beruf und euren Alltag. Hier gibt es Lernangebote, Hintergrundwissen und Tipps, die euch weiterbringen.

Title Length63 chars

Recommended: 50-60 chars (~380px / 580px)

Description Length157 chars

Recommended: 120-160 chars

Issues (0)

    4 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    6 URLs

    6 sub-sitemaps

    robots.txt

    65 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    20/100
    Needs Work
    5 12

    Sponsored

    AI & LLM Readiness

    F36/100
    Bot Access
    5/25
    Machine Read.
    10/25
    Schema Data
    7/25
    Citation
    14/25

    AI Bot Access

    1/14 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
    nav
    Text ratio:11%
    Words:8,710
    Token eff.:Acceptable
    Sections/1K:6.9
    Depth:1/5

    Structured Data

    3 JSON-LD
    Organization×1.1WebSiteBreadcrumbList
    sameAs entity links

    Citation Readiness

    Opening Summary44w
    Descriptive Headingsavg 9.9w
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (6)
    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
    86/100
    13
    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
    9/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    9/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    1 recommendation
    • •Accessibility recommendation preview...
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    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.
    20/100
    F
    2.43 g
    CO₂e / view
    19.2 MB
    Page Weight
    5%
    Cleaner Than
    New Visitor
    2.77 g
    vs
    Returning (cached)
    1.39 g
    Annual (10K/mo)
    291.2 kg
    Emission Segments
    Data Center
    542 mg
    Network
    583 mg
    Device
    1.30 g
    Resource Breakdown
    JavaScript
    840.3 KB
    Images
    16.6 MB
    CSS
    1.7 MB
    HTML
    65.0 KB
    Green Hosting Not Verified
    Bayerischer Rundfunk
    7 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    36%Critical
    Interactive

    HTTPS

    No WAF

    257d

    Certificate Details

    Type

    Organization Validated (OV)

    Certificate Authority

    DigiCert Inc

    Key Algorithm

    ECDSA (secp256r1) (256 bit)

    Signature

    ECDSA with SHA-384

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/1.1

    Valid From

    12.01.2026

    Valid Until

    11.01.2027

    OCSP Stapling

    Enabled

    Subject Alternative Names (8)

    www.br.debr.decomments-staging.br24.decomments.br24.dewww.ard-alpha.dewww.ardalpha.dewww.bayern3.dewww.br-klassik.de

    SHA-256 Fingerprint

    2F:53:3E:4D:1D:A3:9E:22:AD:2E:1B:9C:59:0D:86:36:DF:AA:4D:12...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    accept-ranges
    bytes
    cache-control
    🟡 150s(max-age=150)
    connection
    keep-alive, Transfer-Encoding
    content-encoding
    📦 Gzip(gzip)
    content-type
    text/html
    date
    Wed, 29 Apr 2026 16:21:03 GMT
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    75

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (1)

    ardalpha-de.mail.protection.outlook.com

    Domain Information

    ardalpha.de

    Last Updated

    02.08.2022

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    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.
    D
    55/100
    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, user-scalable=yes, initial-scale=1.0, minimum-scale=1.0
    3 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    ThesisLight + TheMixSemilight

    WCAG Partial
    51/100
    Readability
    /30
    22/30

    20px · LH 1.40

    Hierarchy
    /20
    10/20

    0.8x ratio

    WCAG
    /25
    12/25

    1:1 min contrast

    Performance
    /25
    7/25

    4 fonts · 6 req

    Heading Font

    ThesisLight

    Sans16px

    Body Font

    TheMixSemilight

    Sans20px

    Contrast Ratio

    1:1

    8 issues

    Reading Comfort

    ~34 CPL

    Narrow lines
    16px
    h1
    40px
    h2
    30px
    h3
    20px
    p
    Golden Ratio
    Scale

    ✅ Excellent readability: 20px body text is ideal for all devices.

    ✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

    ⚠️ Partial contrast: 8 elements below WCAG AA threshold (min 1.0:1).

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

    ⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

    ⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

    Buy on MyFonts

    Color Palette

    12 unique colors
    Light
    #ffffff
    Background· 38.1%
    #e68d93
    Primary· 16.4%
    #888562
    Secondary· 8.5%
    #06367e
    Accent· 8.2%
    #d78079
    Accent· 7.6%
    #a7305d
    Accent· 5.3%
    #d8cbb9
    Secondary· 4%
    #98b4af
    Secondary· 3.2%

    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

    10 Resources

    6
    Scripts
    4
    Styles
    3
    Async
    0
    Defer

    Top Script Sources

    local(3)t.ardalpha.de(1)googletagmanager.com(1)tm.ardalpha.de(1)

    Website Identity

    Bayerischer Rundfunk

    Bayerischer Rundfunk

    Organization
    www.br.de/
    Location detected: 🇩🇪 Germanyvia tld
    📧 Microsoft 365de

    Social Profiles

    InstagramYouTube

    Sponsored

    Last analyzed: 29 Apr 2026 at 16:21

    Historical Analysis & Change Tracking