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michaelbach.de

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

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Hosting Provider

VAUTRON

IP Address

83.243.58.20

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Regensburg, Germany

ASN

AS25504

Server

Apache

Nameservers

ns1.n5q.de.ns2.n5q.de.

Performance

95

Core Web Vitals

Weight

First Contentful Paint
1.1 s10%
Speed Index
1.5 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
408 KB
15 requests

Image Optimization

Lazy LoadWebPAVIFResponsive
0–49
50–89
90–100

Architecture Stack

JAMstack
⚡ SSG
Frontend
Framework
Jekyllv4.4.1
Styling
Bootstrap
Infrastructure
Hosting
VAUTRON

Technology Stack

3 Technologies Detected

CSS Frameworks

2
Bootstrap
Tailwind CSS

Web Servers

1
Apachev2.4.66

SEO Analysis

B72/100
22
5
0
Meta Tags5/15
Content9/12
Headings7/8
Technical19/25
E-E-A-T5/7
Images6/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile4/4
Indexability3/3
M
michaelbach.demichaelbach.de

Home

Michael Bach’s home page, starting point for all content

Title Length4 chars

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

Description Length56 chars

Recommended: 120-160 chars

Issues (0)

    5 issues found

    Upgrade to view details

    Crawlability

    Sitemap
    robots.txt

    13 rules

    Local SEO

    Local Search Readiness

    5/100
    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

    D42/100
    Bot Access
    19/25
    Machine Read.
    4/25
    Schema Data
    5/25
    Citation
    14/25

    AI Bot Access

    13/14 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:286
    Token eff.:Too Short
    Sections/1K:24.5
    Depth:1/5

    Structured Data

    1 JSON-LD
    Person×1.3WebSite

    Citation Readiness

    Opening Summary11w
    Descriptive Headingsavg 3.3w
    Canonical URL
    Open Graph2/3
    Twitter Card1/3
    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
    72/100
    7
    Passed
    4
    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
    12/15
    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
    1/15
    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.
    71/100
    A
    50 mg
    CO₂e / view
    407.9 KB
    Page Weight
    90%
    Cleaner Than
    New Visitor
    58 mg
    vs
    Returning (cached)
    29 mg
    Annual (10K/mo)
    6.0 kg
    Emission Segments
    Data Center
    11 mg
    Network
    12 mg
    Device
    27 mg
    Resource Breakdown
    JavaScript
    24.2 KB
    Images
    200.9 KB
    CSS
    177.5 KB
    HTML
    5.4 KB
    Green Hosting Not Verified
    VAUTRON
    2 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    21%Critical
    Interactive

    HTTPS

    No WAF

    51d

    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/1.1

    Valid From

    22.03.2026

    Valid Until

    20.06.2026

    Subject Alternative Names (2)

    michaelbach.dewww.michaelbach.de

    SHA-256 Fingerprint

    A1:FA:A2:EC:33:4F:A0:98:8B:CA:DA:2E:CB:B4:37:6B:8B:A9:5B:D9...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    accept-ranges
    bytes
    cache-control
    🔴 No Cache(no-cache, no-store, must-revalidate)
    connection
    Keep-Alive
    content-encoding
    📦 Gzip(gzip)
    content-length
    5258
    content-type
    text/html; charset=utf-8
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    45

    SPF
    DKIM
    DMARC

    MX Records (1)

    mail.netbeat.de

    Domain Information

    michaelbach.de

    Last Updated

    06.02.2026

    DNSSEC
    Not Enabled

    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.
    C
    63/100
    Mobile Friendly2 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=1.0, user-scalable=yes
    2 recommendations
    • •Mobile compatibility recommendation preview...
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    Typography & Readability

    -apple-system + Palatino

    WCAG AAA
    73/100
    Readability
    /30
    23/30

    19px · LH 1.35

    Hierarchy
    /20
    11/20

    1.65x ratio

    WCAG
    /25
    20/25

    7.17:1 min contrast

    Performance
    /25
    19/25

    System fonts

    Heading Font

    -apple-system

    Sans32px

    Body Font

    Palatino

    Serif19px

    Contrast Ratio

    7.17:1

    WCAG AAA (≥7:1)

    Reading Comfort

    ~31 CPL

    Narrow lines
    32px
    h1
    28px
    h2
    19px
    p

    ✅ Excellent readability: 19px body text is ideal for all devices.

    ⚠️ Tight line spacing (1.35). Increase to 1.4–1.6 for better readability.

    ⚠️ Hard to read: Flesch score 38/100. Simplify sentences for wider reach.

    ✅ WCAG AAA contrast: All text meets 7:1 ratio (min 7.2:1).

    ❌ Broken heading hierarchy: 2 level skip(s). Screen readers rely on sequential headings (h1→h2→h3).

    ❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

    Flesch 38

    Color Palette

    8 unique colors
    Light
    #f7f7f7
    Background· 72.80000000000001%
    #1f271b
    Primary· 5.4%
    #98897e
    Secondary· 5%
    #d4d3c8
    Secondary· 3.6%
    #643b2a
    Secondary· 3.4%
    #557653
    Secondary· 3.2%
    #ede0cf
    Secondary· 2.4%

    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

    5 Resources

    2
    Scripts
    3
    Styles
    0
    Async
    1
    Defer

    Top Script Sources

    local(2)

    Website Identity

    michaelbach.de

    bach@uni-freiburg.de
    Location detected: 🇩🇪 Germanyvia tld
    en

    Sponsored

    Last analyzed: 29 Apr 2026 at 02:29

    Historical Analysis & Change Tracking