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vzbv.de

https://vzbv.de· First analyzed 26 Apr 2026· Updated 26 Apr 2026
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vzbv.de
Desktop screenshot of vzbv.de
Mobile screenshot of vzbv.de
Mobile

Sponsored

Hosting Provider

HL komm Telekommunikationsgesellschaft mbH

IP Address

213.187.93.25

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Leipzig, Germany

ASN

AS16097

Organization

HL komm Telekommunikationsgesellschaft mbH

Server

Apache

CDN

CDN

Nameservers

auth54.ns.de.uu.net.auth40.ns.uu.net.auth04.ns.de.uu.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
484 ms10%
Speed Index
629 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.2 MB
57 requests

Image Optimization

Lazy LoadAVIFResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Drupal

Technology Stack

4 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Analytics

1
Matomo

Web Servers

1
Apache

SEO Analysis

A86/100
27
2
0
Meta Tags14/15
Content10/12
Headings8/8
Technical24/25
E-E-A-T2/7
Images6/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
V
vzbv.devzbv.de

vzbv | Verbraucherzentrale Bundesverband e.V.

Der vzbv sorgt dafür, dass die Stimme der Verbraucherinnen und Verbraucher Gehör findet - in Politik, Wirtschaft und Medien.

Title Length45 chars

Recommended: 50-60 chars (~270px / 580px)

Description Length124 chars

Recommended: 120-160 chars

Issues (0)

    2 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    3 URLs

    3 sub-sitemaps

    robots.txt

    93 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    22/100
    Needs Work
    6 11 1

    Sponsored

    AI & LLM Readiness

    D42/100
    Bot Access
    14/25
    Machine Read.
    11/25
    Schema Data
    2/25
    Citation
    15/25

    AI Bot Access

    8/14 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:4%
    Words:1,632
    Token eff.:Optimal
    Sections/1K:6.7
    Depth:1/5

    Structured Data

    Microdata
    Organization×1.1microdata

    Citation Readiness

    Opening Summary28w
    Descriptive Headingsavg 5w
    Canonical URL
    Open Graph3/3
    Twitter Card2/3
    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
    84/100
    14
    Passed
    3
    Critical
    0
    Warnings
    Images & Alt Text
    18/20
    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
    10/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    1 recommendation
    • •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.
    64/100
    D
    227 mg
    CO₂e / view
    2.2 MB
    Page Weight
    50%
    Cleaner Than
    New Visitor
    259 mg
    vs
    Returning (cached)
    130 mg
    Annual (10K/mo)
    27.2 kg
    Emission Segments
    Data Center
    11 mg
    Network
    67 mg
    Device
    149 mg
    Resource Breakdown
    JavaScript
    695.9 KB
    Images
    1.0 MB
    CSS
    371.4 KB
    HTML
    136.4 KB
    Green Hosting Verified
    loswebos.de GmbH
    GWF Verified
    3 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    D

    Security Score

    41%Poor
    Interactive

    HTTPS

    No WAF

    60d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    28.03.2026

    Valid Until

    26.06.2026

    Subject Alternative Names (2)

    vzbv.dewww.vzbv.de

    SHA-256 Fingerprint

    7E:13:07:97:89:FD:14:55:85:65:6B:BC:B4:DC:F6:A5:56:8A:3D:2A...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    accept-ranges
    bytes
    age
    94405
    cache-control
    🟢 1 Year(max-age=31536000, public)
    cache-tags
    config:formtips.settings config:block_list node:15329 user:0...
    content-encoding
    📦 Gzip(gzip)
    content-language
    de
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    75

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (2)

    cust1346-2.in.mailcontrol.com
    cust1346-1.in.mailcontrol.com

    Domain Information

    vzbv.de

    Last Updated

    04.04.2023

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    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
    71/100
    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
    1 recommendation
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Nunito ExtraBold + Nunito

    WCAG Partial
    61/100
    Readability
    /30
    20/30

    16px · LH 1.30

    Hierarchy
    /20
    13/20

    ✓ H1→H6 order

    WCAG
    /25
    15/25

    2.44:1 min contrast

    Performance
    /25
    13/25

    2 fonts · 6 req

    Heading Font

    Nunito ExtraBold

    Sans0

    Body Font

    Nunito

    Sans16px

    Contrast Ratio

    2.44:1

    1 issue

    Reading Comfort

    ~39 CPL

    Narrow lines
    16px
    h1
    25px
    h2
    21px
    h3
    16px
    p

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

    ⚠️ Tight line spacing (1.30). Increase to 1.4–1.6 for better readability.

    ❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

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

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

    ❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

    Buy on MyFontsFlesch 0

    Color Palette

    9 unique colors
    3.22:1 AA Large Light
    #ffffff
    Background· 54.7%
    #948e8d
    Other· 5.2%
    #f3f1f0
    Secondary· 6.9%
    #db0912
    Primary· 6.4%
    #c9b6af
    Secondary· 5.7%
    #4b3330
    Secondary· 5.2%
    #c9937f
    Secondary· 2.9%

    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

    8 Resources

    4
    Scripts
    4
    Styles
    1
    Async
    2
    Defer

    Top Script Sources

    local(3)auswertung.verbraucherzentrale.de(1)

    Website Identity

    vzbv.de

    info@vzbv.de
    Tel.: +49 30 258000 (Der vzbv bietet keine Beratung unter dieser Nummer an)
    Location detected: 🇩🇪 Germanyvia tld
    de

    Sponsored

    Last analyzed: 26 Apr 2026 at 17:00

    Historical Analysis & Change Tracking