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dke.de

https://dke.de· First analyzed 15 May 2026· Updated 15 May 2026
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dke.de
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Mobile

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Hosting Provider

VDE Verband der Elektrotechnik Elektronik Informationstechnik e.V

IP Address

91.105.243.113

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS33873

Organization

VDE Verband der Elektrotechnik Elektronik Informationstechnik e.V

Server

Apache

Nameservers

ns27.cinetic21.de.ns26.cinetic21.de.ns25.cinetic21.de.ns.vde.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
485 ms10%
Speed Index
630 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2 MB
76 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
VDE Verband der Elektrotechnik Elektronik Informationstechnik e.V

Technology Stack

5 Technologies Detected

UI Components

1
Fancybox

CSS Frameworks

1
Tailwind CSS

Analytics

1
Google Analytics

Tag Managers

1
Google Tag Manager

Web Servers

1
Apache

SEO Analysis

C68/100
20
8
0
Meta Tags8/15
Content10/12
Headings8/8
Technical16/25
E-E-A-T0/7
Images6/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
D
dke.dedke.de

Electrotechnical standardization – DKE

We are the expertise centre for electrotechnical standardization.

Title Length38 chars

Recommended: 50-60 chars (~224px / 580px)

Description Length67 chars

Recommended: 120-160 chars

Issues (0)

    8 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    1 URLs

    1 sub-sitemaps

    robots.txt

    4 rules

    Sitemap reference found

    Allows all crawlers

    Local SEO

    Local Search Readiness

    10/100
    Poor
    3 12 2

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

    Sponsored

    AI & LLM Readiness

    D45/100
    Bot Access
    20/25
    Machine Read.
    13/25
    Schema Data
    0/25
    Citation
    12/25

    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:5%
    Words:874
    Token eff.:Optimal
    Sections/1K:4.6
    Depth:1/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary103w
    Descriptive Headingsavg 8.2w
    Canonical URL
    Open Graph2/3
    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.
    B
    76/100
    13
    Passed
    2
    Critical
    3
    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
    7/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    4/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    3 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.
    41/100
    D
    257 mg
    CO₂e / view
    2.0 MB
    Page Weight
    50%
    Cleaner Than
    New Visitor
    293 mg
    vs
    Returning (cached)
    147 mg
    Annual (10K/mo)
    30.8 kg
    Emission Segments
    Data Center
    57 mg
    Network
    62 mg
    Device
    138 mg
    Resource Breakdown
    JavaScript
    862.8 KB
    Images
    923.2 KB
    CSS
    250.2 KB
    HTML
    9.4 KB
    Other
    28.9 KB
    Green Hosting Not Verified
    VDE Verband der Elektrotechnik Elektronik Informationstechnik e.V
    5 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    B

    Security Score

    76%Good
    Interactive

    HTTPS

    No WAF

    94d

    Certificate Details

    Type

    Organization Validated (OV)

    Certificate Authority

    DigiCert Inc

    Key Algorithm

    RSA (4096 bit)

    Signature

    SHA-512 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/1.1

    Valid From

    17.07.2025

    Valid Until

    17.08.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (20)

    www.vde.comdke.dewww.dke.devde-baden-wuerttemberg.dewww.vde-baden-wuerttemberg.devde-bayern.dewww.vde-bayern.devde-bergisch-land.de+12 more

    SHA-256 Fingerprint

    72:6F:41:E4:7D:08:A9:A2:96:F2:AD:EB:FA:78:F9:84:06:3A:04:24...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🔴 No Cache(no-cache, no-store, max-age=0, must-revalidate)
    connection
    Keep-Alive
    content-encoding
    📦 Gzip(gzip)
    content-language
    en-US
    content-length
    9375
    content-security-policy
    frame-ancestors 'self' http://*.vde.com;
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    20

    SPF
    DKIM
    DMARC

    MX Records (2)

    dke-de.mail.protection.outlook.com
    smtp.dke.de

    Domain Information

    dke.de

    Last Updated

    25.08.2023

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Usercentrics

    Cookie Consent Banner
    Usercentrics
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: Usercentrics
    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.
    D
    57/100
    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, maximum-scale=1
    3 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    HelveticaNeueW01-Thin + HelveticaNeueW01-55Roma

    WCAG Partial
    71/100
    Readability
    /30
    25/30

    16px · LH 1.50

    Hierarchy
    /20
    16/20

    2.19x ratio · ✓ H1→H6

    WCAG
    /25
    17/25

    2.42:1 min contrast

    Performance
    /25
    13/25

    2 fonts · 5 req

    Heading Font

    HelveticaNeueW01-Thin

    Sans35px

    Body Font

    HelveticaNeueW01-55Roma

    Sans16px

    Contrast Ratio

    2.42:1

    19 issues

    Reading Comfort

    ~40 CPL

    Narrow lines
    35px
    h1
    35px
    h2
    26px
    h3
    16px
    p

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

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

    ❌ Very complex text: Flesch score 25/100. Consider shorter sentences and simpler words.

    ⚠️ Partial contrast: 19 elements below WCAG AA threshold (min 2.4:1).

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

    ✅ Strong hierarchy: Headlines are 2.2x larger than body text.

    Buy on MyFontsFlesch 25

    Color Palette

    11 unique colors
    13.52:1 AAA Light
    #ffffff
    Background· 33.2%
    #2f2e2f
    Other· 3.4%
    #0d6bad
    Primary· 7.1%
    #dce2e5
    Secondary· 5.4%
    #82a4ac
    Secondary· 2.8%
    #435b6d
    Secondary· 0.1%

    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

    6 Resources

    4
    Scripts
    2
    Styles
    3
    Async
    0
    Defer

    Top Script Sources

    local(2)app.eu.usercentrics.eu(1)privacy-proxy.usercentrics.eu(1)

    Website Identity

    dke.de

    //dke@vde.com
    Location detected: 🇩🇪 Germanyvia tld
    📧 Microsoft 365en

    Social Profiles

    YouTube

    Sponsored

    Last analyzed: 15 May 2026 at 13:56

    Historical Analysis & Change Tracking