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vde-verlag.de

https://vde-verlag.de· First analyzed 05 May 2026· Updated 05 May 2026
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vde-verlag.de
Desktop screenshot of vde-verlag.de
Mobile screenshot of vde-verlag.de
Mobile

Sponsored

Hosting Provider

Cronon GmbH

IP Address

85.215.16.69

Site Location

🇩🇪 Germanyvia phone

Server Location

🇩🇪 Berlin, Germany

ASN

AS6786

Organization

Cronon GmbH

Server

Microsoft IIS

Nameservers

ns1.telekom.net.pns.dtag.de.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
421 ms10%
Speed Index
547 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
854 KB
31 requests

Image Optimization

WebP
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Cronon GmbH

Technology Stack

6 Technologies Detected

UI Components

1
Fancybox

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Web Servers

1
Microsoft IISv10.0

Languages

1
PHPv8.2.30

Frameworks

1
ASP.NET

SEO Analysis

B70/100
20
8
0
Meta Tags15/15
Content12/12
Headings5/8
Technical19/25
E-E-A-T0/7
Images3/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile3/4
Indexability3/3
V
vde-verlag.devde-verlag.de

DIN-VDE-Normen, Fachliteratur und Seminare - VDE VERLAG

Ihr Fachverlag rund um die Elektrotechnik: DIN-VDE-Normen, bzw. VDE-Bestimmungen, IEC-Normen, Fachbücher, Tagungsbände, Zeitschriften und Seminare.

Title Length55 chars

Recommended: 50-60 chars (~338px / 580px)

Description Length147 chars

Recommended: 120-160 chars

Issues (0)

    8 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    30,466 URLs

    robots.txt

    39 rules

    Sitemap reference found

    Allows all crawlers

    Local SEO

    Local Search Readiness

    16/100
    Poor
    5 11 2

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

    Sponsored

    AI & LLM Readiness

    D43/100
    Bot Access
    20/25
    Machine Read.
    11/25
    Schema Data
    3/25
    Citation
    9/25

    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:7%
    Words:707
    Token eff.:Optimal
    Sections/1K:1.4
    Depth:2/5

    Structured Data

    1 JSON-LD
    WebSiteSearchAction

    Citation Readiness

    Opening Summary30w
    Descriptive Headingsavg 2w
    Canonical URL
    Open Graph0/3
    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.
    C
    67/100
    11
    Passed
    4
    Critical
    2
    Warnings
    Images & Alt Text
    15/20
    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
    5/15
    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
    8/15
    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.
    42/100
    B
    106 mg
    CO₂e / view
    853.8 KB
    Page Weight
    80%
    Cleaner Than
    New Visitor
    121 mg
    vs
    Returning (cached)
    60 mg
    Annual (10K/mo)
    12.7 kg
    Emission Segments
    Data Center
    24 mg
    Network
    25 mg
    Device
    57 mg
    Resource Breakdown
    JavaScript
    231.5 KB
    Images
    366.5 KB
    CSS
    170.6 KB
    HTML
    85.1 KB
    Green Hosting Not Verified
    Cronon GmbH
    5 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    B

    Security Score

    76%Good
    Interactive

    HTTPS

    No WAF

    171d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Sectigo Limited

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.2

    HTTP Protocol

    HTTP/2

    Valid From

    08.04.2026

    Valid Until

    23.10.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    *.vde-verlag.devde-verlag.de

    SHA-256 Fingerprint

    5F:45:46:FE:83:D2:BE:50:66:98:36:E0:93:73:9D:DB:13:1E:C9:B1...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🟣 Private(private)
    content-length
    86824
    content-security-policy
    frame-ancestors 'self';
    content-type
    text/html; charset=UTF-8
    date
    Tue, 05 May 2026 18:49:10 GMT
    expires
    Thu, 19 Nov 1981 08:52:00 GMT
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    70

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (1)

    mx-31513577.mail.eu.retarus.com

    Domain Information

    vde-verlag.de

    Last Updated

    19.08.2021

    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
    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
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Barlow

    WCAG Partial
    58/100
    Readability
    /30
    22/30

    16px · LH 1.50

    Hierarchy
    /20
    7/20

    0.93x ratio

    WCAG
    /25
    16/25

    1:1 min contrast

    Performance
    /25
    13/25

    1 font · 2 req

    Heading Font

    Barlow

    Sans15px

    Body Font

    Barlow

    Sans16px

    Contrast Ratio

    1:1

    11 issues

    Reading Comfort

    ~39 CPL

    Narrow lines
    15px
    h1
    17px
    h3
    17px
    h4
    16px
    p
    Minor Second
    Scale

    ✅ 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 0/100. Consider shorter sentences and simpler words.

    ⚠️ Partial contrast: 11 elements below WCAG AA threshold (min 1.0:1).

    ❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

    ⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

    Buy on MyFontsFlesch 0

    Color Palette

    10 unique colors
    Light
    #ffffff
    Primary· 28.5%
    #307db9
    Primary· 15.4%
    #d4e8f3
    Accent· 11%
    #aaccd9
    Secondary· 4.9%
    #7f98a5
    Secondary· 3.7%
    #496581
    Secondary· 2.4%
    #e3c69f
    Accent· 2.3%
    #ccd8e2
    Secondary· 1.8%

    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

    7 Resources

    4
    Scripts
    3
    Styles
    0
    Async
    0
    Defer

    Top Script Sources

    local(2)etracker.de(1)code.etracker.com(1)

    Website Identity

    vde-verlag.de

    seminare@vde-verlag.de
    +4930348001222
    Location detected: 🇩🇪 Germanyvia phone
    de

    Sponsored

    Last analyzed: 05 May 2026 at 18:49

    Historical Analysis & Change Tracking