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aachen.de

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

Sponsored

Hosting Provider

regio iT GmbH

IP Address

91.102.137.13

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Würselen, Germany

ASN

AS34928

Server

ext

Nameservers

dns-relaix.regioit-aachen.de.dns01.regioit-aachen.de.

Performance

87

Core Web Vitals

Weight

First Contentful Paint
1.7 s10%
Speed Index
2.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.9 MB
121 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
regio iT GmbH

Progressive Web App

PWA ReadyWeb ManifestService WorkerApple Touch IconTheme Color

Technology Stack

5 Technologies Detected

Libraries

1
Axios

UI Components

1
Fancybox

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Analytics

1
Matomo

SEO Analysis

B77/100
23
8
0
Meta Tags8/15
Content10/12
Headings6/8
Technical21/25
E-E-A-T7/7
Images4/7
Links2/5
URL5/5
Social3/5
Freshness4/4
Mobile4/4
Indexability3/3
A
aachen.deaachen.de

Willkommen in Aachen | Stadt Aachen

Die offizielle Homepage der Stadt Aachen

Title Length35 chars

Recommended: 50-60 chars (~214px / 580px)

Description Length40 chars

Recommended: 120-160 chars

Issues (0)

    8 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    5,077 URLs

    robots.txt

    Local SEO

    Local Search Readiness

    30/100
    Needs Work
    6 12 1

    Sponsored

    AI & LLM Readiness

    D58/100
    Bot Access
    20/25
    Machine Read.
    11/25
    Schema Data
    9/25
    Citation
    18/25

    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:3%
    Words:1,795
    Token eff.:Optimal
    Sections/1K:12.8
    Depth:1/5

    Structured Data

    3 JSON-LD
    Person×1.3(min)Organization×1.1WebSiteLocalBusiness×1.1SearchAction

    Citation Readiness

    Opening Summary20w
    Descriptive Headingsavg 5.1w
    Canonical URL
    Open Graph3/3
    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
    77/100
    13
    Passed
    3
    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
    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
    5/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    5/15
    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.
    36/100
    F
    367 mg
    CO₂e / view
    2.9 MB
    Page Weight
    30%
    Cleaner Than
    New Visitor
    419 mg
    vs
    Returning (cached)
    210 mg
    Annual (10K/mo)
    44.0 kg
    Emission Segments
    Data Center
    82 mg
    Network
    88 mg
    Device
    197 mg
    Resource Breakdown
    JavaScript
    671.1 KB
    Images
    1.2 MB
    CSS
    474.1 KB
    Fonts
    472.5 KB
    HTML
    41.7 KB
    Other
    35.2 KB
    Green Hosting Not Verified
    regio iT GmbH
    6 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    B

    Security Score

    76%Good
    Interactive

    HTTPS

    No WAF

    76d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Sectigo Limited

    Key Algorithm

    RSA (4096 bit)

    Signature

    SHA-384 with RSA

    TLS Version

    TLSv1.2

    HTTP Protocol

    HTTP/1.1

    Valid From

    13.06.2025

    Valid Until

    14.07.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    *.aachen.deaachen.de

    SHA-256 Fingerprint

    51:FB:BA:06:D2:0C:F4:F8:B4:CE:23:AE:12:B9:92:D5:2D:27:FE:EF...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🟡 300s(private, max-age=300)
    connection
    keep-alive
    content-encoding
    ⚡ Brotli(br)
    content-security-policy
    default-src 'self'; child-src 'self' blob: https://aachen.le...
    content-type
    text/html;charset=UTF-8
    date
    Wed, 29 Apr 2026 14:54:19 GMT
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    45

    SPF
    DKIM
    DMARC

    MX Records (3)

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

    Domain Information

    aachen.de

    Last Updated

    23.06.2022

    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
    Data Protection Officer mentioned

    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
    73/100
    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=1.0, user-scalable=1
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    TheMix + TransitPro

    WCAG AAA
    77/100
    Readability
    /30
    20/30

    18px · LH 1.40

    Hierarchy
    /20
    16/20

    2.78x ratio · ✓ H1→H6

    WCAG
    /25
    25/25

    12.08:1 min contrast

    Performance
    /25
    16/25

    2 fonts · 9 req

    Heading Font

    TheMix

    Sans50px

    Body Font

    TransitPro

    Sans18px

    Contrast Ratio

    12.08:1

    WCAG AAA (≥7:1)

    Reading Comfort

    ~32 CPL

    Narrow lines
    50px
    h1
    50px
    h2
    31px
    h3
    18px
    p

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

    ✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

    ❌ Very complex text: Flesch score 16/100. Consider shorter sentences and simpler words.

    ✅ WCAG AAA contrast: All text meets 7:1 ratio (min 12.1:1).

    ✅ 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 MyFontsFluid Type (rem)Flesch 16

    Color Palette

    8 unique colors
    13.01:1 AAA Light
    #ffffff
    Primary· 39.7%
    #32312e
    Text· 6.2%
    #1b1a15
    Secondary· 28.7%
    #0a0a07
    Secondary· 4.8%
    #434036
    Secondary· 4%
    #dedabc
    Secondary· 2.8%

    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

    6 Resources

    5
    Scripts
    1
    Styles
    0
    Async
    3
    Defer

    Top Script Sources

    aachen.de(5)

    Website Identity

    Stadt Aachen

    LocalBusiness

    Das Internetportal der Stadtverwaltung Aachen

    stadt.aachen@mail.aachen.de
    0241 432 0
    www.aachen.de/stadt-aachen/
    Location detected: 🇩🇪 Germanyvia tld
    de

    Sponsored

    Last analyzed: 29 Apr 2026 at 14:54

    Historical Analysis & Change Tracking