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dueren.de

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

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Hosting Provider

Hetzner
hetzner.com

IP Address

85.10.213.53

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Nuremberg, Germany

ASN

AS24940

Organization

Hetzner Online GmbH

Server

Apache

Nameservers

ns3.as12759.de.ns2.as12759.de.ns1.as12759.de.

Performance

94

Core Web Vitals

Weight

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

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Hetzner

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

6 Technologies Detected

UI Components

2
Slick CarouselFancybox

CSS Frameworks

2
Tailwind CSS
Normalize.css

Libraries

1
jQuery

Web Servers

1
Apache

SEO Analysis

C65/100
19
8
0
Meta Tags5/15
Content12/12
Headings8/8
Technical14/25
E-E-A-T3/7
Images4/7
Links5/5
URL5/5
Social2/5
Freshness0/4
Mobile4/4
Indexability3/3
D
dueren.dedueren.de

STADT DÜREN | Startseite

dueren.de - Offizielle Webseite der Stadt Düren

Title Length24 chars

Recommended: 50-60 chars (~144px / 580px)

Description Length47 chars

Recommended: 120-160 chars

Issues (0)

    8 issues found

    Upgrade to view details

    Crawlability

    Sitemap
    robots.txt

    3 rules

    Local SEO

    Local Search Readiness

    13/100
    Poor
    3 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
    20/25
    Machine Read.
    14/25
    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
    navheader/footer
    Text ratio:10%
    Words:1,410
    Token eff.:Optimal
    Sections/1K:29.8
    Depth:2/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary24w
    Descriptive Headingsavg 3.1w
    Canonical URL
    Open Graph1/3
    Twitter Card1/3
    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.
    A
    80/100
    13
    Passed
    1
    Critical
    2
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    20/20
    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
    6/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    2 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.
    29/100
    F
    1.77 g
    CO₂e / view
    17.1 MB
    Page Weight
    5%
    Cleaner Than
    New Visitor
    2.02 g
    vs
    Returning (cached)
    1.01 g
    Annual (10K/mo)
    212.5 kg
    Emission Segments
    Data Center
    87 mg
    Network
    521 mg
    Device
    1.16 g
    Resource Breakdown
    JavaScript
    64.2 KB
    Images
    15.6 MB
    CSS
    1.5 MB
    HTML
    11.7 KB
    Other
    300 B
    Green Hosting Verified
    Hetzner Online GmbH
    GWF Verified
    6 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    0%Critical
    Critical / Transactional

    HTTPS

    No WAF

    108d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    DigiCert Inc

    Key Algorithm

    RSA (3072 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    01.09.2025

    Valid Until

    06.09.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    *.dueren.dedueren.de

    SHA-256 Fingerprint

    E3:4A:B1:84:6C:7D:CD:E4:8B:CA:90:9F:BE:00:A8:8F:0E:59:F4:98...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    access-control-allow-headers
    Content-Type, Authorization
    access-control-allow-methods
    GET, POST, OPTIONS, PUT, DELETE
    access-control-allow-origin
    *
    cache-control
    🔴 No Cache(no-store, no-cache, must-revalidate)
    content-encoding
    📦 Gzip(gzip)
    content-type
    text/html; charset=UTF-8
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    45

    SPF
    DKIM
    DMARC

    MX Records (3)

    mail12.regioit-aachen.de
    mail11.regioit-aachen.de
    mail10.regioit-aachen.de

    Domain Information

    dueren.de

    Last Updated

    09.04.2020

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    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
    60/100
    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, user-scalable=no
    3 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Open Sans

    WCAG Partial
    66/100
    Readability
    /30
    23/30

    16px · LH 1.60

    Hierarchy
    /20
    14/20

    1.75x ratio · ✓ H1→H6

    WCAG
    /25
    14/25

    1:1 min contrast

    Performance
    /25
    15/25

    1 font · 3 req

    Heading Font

    Open Sans

    Sans28px

    Body Font

    Open Sans

    Sans16px

    Contrast Ratio

    1:1

    10 issues

    Reading Comfort

    ~45 CPL

    Narrow lines
    28px
    h1
    28px
    h2
    22px
    h3
    14px
    h4
    16px
    p

    ✅ Excellent readability: 16px body text is ideal for all devices.

    ✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

    ⚠️ Partial contrast: 10 elements below WCAG AA threshold (min 1.0:1).

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

    ✅ Lean font stack: 1 font families keeps load times fast.

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

    Buy on MyFonts

    Color Palette

    13 unique colors
    16.72:1 AAA Light
    #ffffff
    Background· 15.7%
    #1d1e1d
    Other· 4.6%
    #000a0d
    Primary· 19.299999999999997%
    #e9e5dd
    Secondary· 8.5%
    #8d5422
    Accent· 7.1%
    #273533
    Secondary· 7.1%
    #dda960
    Accent· 6.9%
    #3f544f
    Secondary· 5.8%

    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

    24 Resources

    14
    Scripts
    10
    Styles
    1
    Async
    0
    Defer

    Top Script Sources

    application(7)themes(3)assets(2)prod-chat-app.neurabot.neuraflow.de(1)cdnjs.cloudflare.com(1)

    Website Identity

    dueren.de

    02421250
    Location detected: 🇩🇪 Germanyvia tld
    de

    Sponsored

    Last analyzed: 21 May 2026 at 02:42

    Historical Analysis & Change Tracking