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deutsche-biographie.de

https://deutsche-biographie.de· First analyzed 28 Apr 2026· Updated 28 Apr 2026
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deutsche-biographie.de
Desktop screenshot of deutsche-biographie.de
Mobile screenshot of deutsche-biographie.de
Mobile

Sponsored

Hosting Provider

Leibniz-Rechenzentrum

IP Address

138.246.102.22

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Munich, Germany

ASN

AS12816

Nameservers

dns2.lrz.de.dns3.lrz.de.dns1.lrz.de.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
672 ms10%
Speed Index
874 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2 MB
41 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
Infrastructure
Hosting
Leibniz-Rechenzentrum

Technology Stack

7 Technologies Detected

Libraries

2
jQueryv3.7.1
jQuery UI

CSS Frameworks

2
Bootstrapv5.3.8
Tailwind CSS

Other

1
Leaflet

UI Components

1
Swiper

Icon Libraries

1
Font Awesome

SEO Analysis

D55/100
17
9
0
Meta Tags5/15
Content10/12
Headings5/8
Technical15/25
E-E-A-T0/7
Images4/7
Links4/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
D
deutsche-biographie.dedeutsche-biographie.de

Deutsche Biographie

Deutsche Biographie

Title Length19 chars

Recommended: 50-60 chars (~113px / 580px)

Description Length19 chars

Recommended: 120-160 chars

Issues (0)

    9 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    50 URLs

    50 sub-sitemaps

    robots.txt

    11 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    4/100
    Poor
    1 15 2

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

    Sponsored

    AI & LLM Readiness

    D40/100
    Bot Access
    20/25
    Machine Read.
    12/25
    Schema Data
    0/25
    Citation
    8/25

    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
    nav
    Text ratio:15%
    Words:382
    Token eff.:Optimal
    Depth:1/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary35w
    Descriptive Headings
    Canonical URL
    Open Graph0/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (8)
    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
    78/100
    12
    Passed
    2
    Critical
    2
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    17/20
    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
    9/15
    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.
    34/100
    D
    249 mg
    CO₂e / view
    2.0 MB
    Page Weight
    50%
    Cleaner Than
    New Visitor
    284 mg
    vs
    Returning (cached)
    142 mg
    Annual (10K/mo)
    29.9 kg
    Emission Segments
    Data Center
    56 mg
    Network
    60 mg
    Device
    134 mg
    Resource Breakdown
    JavaScript
    197.3 KB
    Images
    1.4 MB
    CSS
    335.8 KB
    HTML
    4.8 KB
    Green Hosting Not Verified
    Leibniz-Rechenzentrum
    4 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    D

    Security Score

    41%Poor
    Interactive

    HTTPS

    No WAF

    168d

    Certificate Details

    Type

    Organization Validated (OV)

    Certificate Authority

    Hellenic Academic and Research Institutions CA

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    14.10.2025

    Valid Until

    14.10.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (8)

    www.deutsche-biographie.dewww.allgemeine-deutsche-biographie.dedeutsche-biographie.dewww.neue-deutsche-biographie.deallgemeine-deutsche-biographie.dewww.deutsche-biografie.deneue-deutsche-biographie.dedeutsche-biografie.de

    SHA-256 Fingerprint

    05:F8:BF:83:96:3F:B4:AE:5A:65:F1:2E:73:C1:ED:A9:DB:81:9D:F0...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🔴 No Cache(no-cache, no-store, max-age=0, must-revalidate)
    content-encoding
    ⚡ Brotli(br)
    content-language
    de
    content-type
    text/html;charset=UTF-8
    date
    Tue, 28 Apr 2026 16:36:43 GMT
    expires
    0
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    20

    SPF
    DKIM
    DMARC

    MX Records (1)

    smtp.bsb-muenchen.de

    Domain Information

    deutsche-biographie.de

    Last Updated

    16.12.2024

    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
    59/100
    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
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    -apple-system

    WCAG Partial
    68/100
    Readability
    /30
    23/30

    18px · LH 1.50

    Hierarchy
    /20
    12/20

    2.22x ratio

    WCAG
    /25
    12/25

    2.06:1 min contrast

    Performance
    /25
    21/25

    System fonts

    Heading Font

    -apple-system

    Sans40px

    Body Font

    -apple-system

    Sans18px

    Contrast Ratio

    2.06:1

    1 issue

    Reading Comfort

    ~38 CPL

    Narrow lines
    40px
    h1
    24px
    h4
    18px
    p

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

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

    ❌ Very complex text: Flesch score 19/100. Consider shorter sentences and simpler words.

    ⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 2.1:1).

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

    ✅ Strong hierarchy: Headlines are 2.2x larger than body text.

    Flesch 19

    Color Palette

    10 unique colors
    19.01:1 AAA Light
    #ffffff
    Background· 30.1%
    #11100f
    Text· 5.6%
    #eaf1f7
    Primary· 16.6%
    #382f2d
    Text· 15.5%
    #b7a396
    Secondary· 7.2%
    #3d4e6a
    Secondary· 3.3%
    #d9e1e9
    Secondary· 3.2%

    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

    26 Resources

    16
    Scripts
    10
    Styles
    0
    Async
    0
    Defer

    Top Script Sources

    local(16)

    Website Identity

    deutsche-biographie.de

    Location detected: 🇩🇪 Germanyvia tld
    de

    Sponsored

    Last analyzed: 28 Apr 2026 at 16:36

    Historical Analysis & Change Tracking