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dsm.museum

https://dsm.museum· First analyzed 17 May 2026· Updated 17 May 2026
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dsm.museum
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Mobile

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Hosting Provider

DSM Museum

IP Address

195.37.172.92

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS680

Organization

DSM Museum

Server

Apache

Nameservers

ns-02.briteline.de.ns-01.briteline.de.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
562 ms10%
Speed Index
731 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
11.1 MB
48 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
TYPO3

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

4 Technologies Detected

Libraries

1
jQuery

CSS Frameworks

1
Tailwind CSS

Analytics

1
Matomo

Web Servers

1
Apache

SEO Analysis

B70/100
21
7
0
Meta Tags8/15
Content11/12
Headings5/8
Technical22/25
E-E-A-T0/7
Images3/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile4/4
Indexability3/3
D
dsm.museumdsm.museum

Deutsches Schifffahrtsmuseum

Das Deutsche Schifffahrtsmuseum in Bremerhaven ist ein Forschungsmuseum der Leibniz-Gemeinschaft und ein Ort der Bildung und des Dialogs im Herzen des Museum...

Description truncated.
Title Length28 chars

Recommended: 50-60 chars (~177px / 580px)

Description Length165 chars

Recommended: 120-160 chars

Issues (0)

    7 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    1,000 URLs

    robots.txt

    13 rules

    Local SEO

    Local Search Readiness

    23/100
    Needs Work
    6 11 3

    Sponsored

    AI & LLM Readiness

    D47/100
    Bot Access
    20/25
    Machine Read.
    11/25
    Schema Data
    2/25
    Citation
    14/25

    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:6%
    Words:1,549
    Token eff.:Optimal
    Sections/1K:25.2
    Depth:1/5

    Structured Data

    Microdata
    WebSitemicrodataSearchActionmicrodata

    Citation Readiness

    Opening Summary29w
    Descriptive Headingsavg 4.4w
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    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.
    A
    85/100
    14
    Passed
    2
    Critical
    1
    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
    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.
    25/100
    F
    1.41 g
    CO₂e / view
    11.1 MB
    Page Weight
    5%
    Cleaner Than
    New Visitor
    1.61 g
    vs
    Returning (cached)
    805 mg
    Annual (10K/mo)
    169.0 kg
    Emission Segments
    Data Center
    315 mg
    Network
    338 mg
    Device
    756 mg
    Resource Breakdown
    JavaScript
    62.1 KB
    Images
    10.8 MB
    CSS
    193.0 KB
    HTML
    39.5 KB
    Green Hosting Not Verified
    DSM Museum
    6 recommendations
    • •Carbon footprint recommendation preview...
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    C

    Security Score

    61%Fair
    Interactive

    HTTPS

    No WAF

    179d

    Certificate Details

    Type

    Organization Validated (OV)

    Certificate Authority

    Hellenic Academic and Research Institutions CA

    Key Algorithm

    RSA (4096 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/1.1

    Valid From

    13.11.2025

    Valid Until

    13.11.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (4)

    www.dsm.museumlehre.dsm.museumwww.lehre.dsm.museumdigital.dsm.museum

    SHA-256 Fingerprint

    62:2C:5F:FE:73:12:CB:F5:96:56:22:16:CB:07:BA:16:6B:1B:E4:F5...

    Top Recommendations

    Security recommendation preview

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    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🔴 No Cache(private, no-store, max-age=0)
    connection
    Keep-Alive
    content-encoding
    📦 Gzip(gzip)
    content-language
    de
    content-length
    40102
    content-type
    text/html; charset=utf-8
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    50

    SPF
    DKIM
    DMARC

    MX Records (2)

    kronos.dsm.museum
    rhea.dsm.museum

    Domain Information

    dsm.museum

    Domain Age
    18y 6m

    Created

    30.10.2007

    Expires

    30.10.2027

    Last Updated

    04.11.2025

    Registrar

    COREhub S.R.L.

    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.
    C
    64/100
    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...
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    Typography & Readability

    Montserrat-Variable

    WCAG Partial
    73/100
    Readability
    /30
    19/30

    18px · LH 1.33

    Hierarchy
    /20
    20/20

    2.78x ratio · ✓ H1→H6

    WCAG
    /25
    19/25

    1:1 min contrast

    Performance
    /25
    15/25

    1 font · 1 req

    Heading Font

    Montserrat-Variable

    Sans50px

    Body Font

    Montserrat-Variable

    Sans18px

    Contrast Ratio

    1:1

    1 issue

    Reading Comfort

    ~43 CPL

    Narrow lines
    50px
    h1
    30px
    h2
    24px
    h3
    18px
    h4
    18px
    p

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

    ⚠️ Tight line spacing (1.33). Increase to 1.4–1.6 for better readability.

    ⚠️ Hard to read: Flesch score 34/100. Simplify sentences for wider reach.

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

    ✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

    ✅ Strong hierarchy: Headlines are 2.8x larger than body text.

    Buy on MyFontsFlesch 34

    Color Palette

    13 unique colors
    Light
    #bddee5
    Primary· 25.400000000000002%
    #eba895
    Accent· 9.5%
    #ffffff
    Primary· 0%
    #f5833b
    Accent· 9%
    #78abc0
    Secondary· 8.8%
    #8b6d41
    Secondary· 7.4%
    #9b8228
    Accent· 7.2%
    #080507
    Secondary· 7.1%

    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

    12 Resources

    9
    Scripts
    3
    Styles
    1
    Async
    0
    Defer

    Top Script Sources

    local(8)analytics.dsm.museum(1)

    Website Identity

    dsm.museum

    TouristAttraction
    info@dsm.museum
    18 years old
    Location detected: 🇩🇪 Germanyvia ip
    COREhub S.R.L.de-DE

    Sponsored

    Last analyzed: 17 May 2026 at 10:58

    Historical Analysis & Change Tracking