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shaker.de

https://shaker.de· First analyzed 21 May 2026· Updated 21 May 2026
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shaker.de
Desktop screenshot of shaker.de
Mobile screenshot of shaker.de
Mobile

Sponsored

Hosting Provider

Eurolink Consult GmbH

IP Address

212.117.74.180

Site Location

🇩🇪 Germanyvia phone

Server Location

🇩🇪 Cologne, Germany

ASN

AS8422

Organization

Eurolink Consult GmbH

Server

Apache

Nameservers

dns13.netcologne.de.dns12.netcologne.de.dns11.netcologne.de.dns14.netcologne.de.

Performance

98

Core Web Vitals

Weight

First Contentful Paint
917 ms10%
Speed Index
1.2 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.3 MB
46 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
Infrastructure
Hosting
Eurolink Consult GmbH

Technology Stack

10 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Facebook Pixel

CSS Frameworks

2
Tailwind CSS
Bootstrap

Libraries

1
jQueryv3.4.1

Icon Libraries

1
Font Awesome

Tag Managers

1
Google Tag Manager

Web Servers

1
Apache

Frameworks

1
ASP.NET

SEO Analysis

C64/100
15
9
0
Meta Tags13/15
Content11/12
Headings5/8
Technical12/25
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile3/4
Indexability3/3
S
shaker.deshaker.de

Der Verlag für Ihre Dissertationen, Tagungsbände und Fachbücher

Autoren von Dissertationen und Habilitationsschriften werden bei uns seit vielen Jahren professionell betreut. Mittlerweile umfasst unser Programm ca. 30.000...

Description truncated.
Title Length63 chars

Recommended: 50-60 chars (~379px / 580px)

Description Length164 chars

Recommended: 120-160 chars

Issues (0)

    9 issues found

    Upgrade to view details

    Crawlability

    Sitemap
    robots.txt

    3 rules

    Local SEO

    Local Search Readiness

    15/100
    Poor
    5 10 2

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

    Sponsored

    AI & LLM Readiness

    D41/100
    Bot Access
    20/25
    Machine Read.
    11/25
    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.txt
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    navheader/footer
    Text ratio:4%
    Words:733
    Token eff.:Optimal
    Sections/1K:5.5
    Depth:2/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary62w
    Descriptive Headingsavg 2.6w
    Canonical URL
    Open Graph3/3
    Twitter Card0/3
    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.
    D
    56/100
    8
    Passed
    7
    Critical
    4
    Warnings
    Images & Alt Text
    13/20
    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
    0/15
    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
    7/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    6/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    4 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.
    56/100
    B
    138 mg
    CO₂e / view
    1.3 MB
    Page Weight
    70%
    Cleaner Than
    New Visitor
    158 mg
    vs
    Returning (cached)
    79 mg
    Annual (10K/mo)
    16.5 kg
    Emission Segments
    Data Center
    7 mg
    Network
    41 mg
    Device
    91 mg
    Resource Breakdown
    JavaScript
    930.6 KB
    Images
    175.7 KB
    CSS
    238.4 KB
    HTML
    20.1 KB
    Green Hosting Verified
    NetCologne GmbH
    GWF Verified
    5 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    0%Critical
    Critical / Transactional

    HTTPS

    No WAF

    36d

    Certificate Details

    Type

    Organization Validated (OV)

    Certificate Authority

    Sectigo Limited

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-384 with RSA

    TLS Version

    TLSv1.2

    HTTP Protocol

    HTTP/1.1

    Valid From

    26.05.2025

    Valid Until

    26.06.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    www.shaker.deshaker.de

    SHA-256 Fingerprint

    30:F4:68:EC:25:E3:43:33:A5:51:26:8C:D9:2D:47:08:1F:93:FF:AA...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🟣 Private(private)
    connection
    Keep-Alive
    content-encoding
    📦 Gzip(gzip)
    content-length
    20235
    content-type
    text/html
    date
    Thu, 21 May 2026 09:36:20 GMT
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    100

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (1)

    shaker-de.mail.protection.outlook.com

    Domain Information

    shaker.de

    Last Updated

    19.06.2014

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookiebot

    Cookie Consent Banner
    Cookiebot
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: Cookiebot
    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
    70/100
    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, initial-scale=1
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    -apple-system

    WCAG AA
    72/100
    Readability
    /30
    21/30

    14px · LH 1.50

    Hierarchy
    /20
    12/20

    2.86x ratio

    WCAG
    /25
    22/25

    5.06:1 min contrast

    Performance
    /25
    17/25

    System fonts

    Heading Font

    -apple-system

    Sans40px

    Body Font

    -apple-system

    Sans14px

    Contrast Ratio

    5.06:1

    WCAG AA (≥4.5:1)

    Reading Comfort

    ~37 CPL

    Narrow lines
    40px
    h1
    17px
    h2
    28px
    h3
    14px
    p

    ⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

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

    ❌ Very complex text: Flesch score 10/100. Consider shorter sentences and simpler words.

    ✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.1:1).

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

    ✅ Strong hierarchy: Headlines are 2.9x larger than body text.

    Flesch 10

    Color Palette

    6 unique colors
    6.93:1 AA Dark
    #424348
    Text· 66.90000000000002%
    #d7d8dc
    Other· 3.3%
    #2b333e
    Primary· 16.400000000000002%
    #fafbff
    Accent· 8.5%

    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

    25 Resources

    15
    Scripts
    10
    Styles
    3
    Async
    2
    Defer

    Top Script Sources

    Layout(12)googletagmanager.com(3)

    Website Identity

    shaker.de

    info@shaker.de
    +492421990110
    Location detected: 🇩🇪 Germanyvia phone
    📧 Microsoft 365en

    Sponsored

    Last analyzed: 21 May 2026 at 09:36

    Historical Analysis & Change Tracking