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bzst.de

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

Itzbund

IP Address

80.245.152.58

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Troisdorf, Germany

ASN

AS35704

Organization

Itzbund

Server

Apache

Nameservers

secondary006.dtag.net.ns1.itzbund.de.pns.dtag.de.ns2.itzbund.de.

Performance

74

Core Web Vitals

Weight

First Contentful Paint
3.9 s10%
Speed Index
5.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.7 MB
51 requests

Image Optimization

Responsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Itzbund

Technology Stack

4 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Analytics

1
Matomo

Web Servers

1
Apache

SEO Analysis

D57/100
15
9
0
Meta Tags5/15
Content11/12
Headings6/8
Technical16/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
B
bzst.debzst.de

BZSt - Startseite

Homepage des deutschsprachigen Auftritts

Title Length19 chars

Recommended: 50-60 chars (~115px / 580px)

Description Length40 chars

Recommended: 120-160 chars

Issues (0)

    9 issues found

    Upgrade to view details

    Crawlability

    Sitemap
    robots.txt

    9 rules

    Local SEO

    Local Search Readiness

    5/100
    Poor
    2 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.
    13/25
    Schema Data
    0/25
    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:641
    Token eff.:Optimal
    Sections/1K:67.1
    Depth:2/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary78w
    Descriptive Headingsavg 2.8w
    Canonical URL
    Open Graph0/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (9)
    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
    81/100
    13
    Passed
    2
    Critical
    2
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    18/20
    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
    4/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    2 recommendations
    • •Accessibility recommendation preview...
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    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.
    24/100
    E
    337 mg
    CO₂e / view
    2.7 MB
    Page Weight
    30%
    Cleaner Than
    New Visitor
    385 mg
    vs
    Returning (cached)
    192 mg
    Annual (10K/mo)
    40.4 kg
    Emission Segments
    Data Center
    75 mg
    Network
    81 mg
    Device
    181 mg
    Resource Breakdown
    JavaScript
    287.8 KB
    Images
    1.9 MB
    CSS
    438.6 KB
    HTML
    64.3 KB
    Other
    11.4 KB
    Green Hosting Not Verified
    Itzbund
    6 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    A

    Security Score

    81%Very Good
    Interactive

    HTTPS

    No WAF

    176d

    Certificate Details

    Type

    Organization Validated (OV)

    Certificate Authority

    D-Trust GmbH

    Key Algorithm

    RSA (4096 bit)

    Signature

    SHA-512 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/1.1

    Valid From

    05.04.2026

    Valid Until

    20.10.2026

    Subject Alternative Names (20)

    www.bzst.dewww.taxinformationcentre.dewww.taxinformationcenter.dewww.steuerliches-infocenter.dewww.steuerliches-info-center.dewww.steuerinfocenter.dewww.steuer-infocenter.dewww.steuer-info-center.de+12 more

    SHA-256 Fingerprint

    80:CA:FA:FC:A3:26:7A:95:CE:61:E0:8B:31:B5:E5:6E:01:62:C2:F9...

    Top Recommendations

    Security recommendation preview

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    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🟡 0s(max-age=0)
    connection
    Keep-Alive
    content-language
    de-DE
    content-security-policy
    default-src 'self' *.readspeaker.com data: https://zer-poc.b...
    content-type
    text/html;charset=utf-8
    date
    Sun, 26 Apr 2026 22:25:11 GMT
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    75

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (2)

    lxmxext1.bfinv.de
    lxmxext2.bfinv.de

    Domain Information

    bzst.de

    Last Updated

    01.11.2025

    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
    62/100
    Mobile Friendly2 breakpoints
    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, maximum-scale=1.5, user-scalable=1
    3 recommendations
    • •Mobile compatibility recommendation preview...
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    Typography & Readability

    bundesserifweb + bundessansweb

    WCAG AA
    72/100
    Readability
    /30
    24/30

    18px · LH 1.50

    Hierarchy
    /20
    16/20

    2.22x ratio · ✓ H1→H6

    WCAG
    /25
    19/25

    6.49:1 min contrast

    Performance
    /25
    13/25

    2 fonts · 5 req

    Heading Font

    bundesserifweb

    Serif40px

    Body Font

    bundessansweb

    Sans18px

    Contrast Ratio

    6.49:1

    WCAG AA (≥4.5:1)

    Reading Comfort

    ~37 CPL

    Narrow lines
    40px
    h1
    40px
    h2
    24px
    h3
    18px
    p

    ✅ Excellent readability: 18px 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.

    ✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 6.5:1).

    ✅ 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 0

    Color Palette

    6 unique colors
    Light
    #ffffff
    Background· 33.3%
    #aec1ce
    Primary· 14.8%
    #cbd5de
    Secondary· 8.8%
    #6f8783
    Secondary· 6.4%

    Business & Marketing Stack

    2 Tools Detected

    Growing

    Behavior Analytics

    2
    Matomo (Piwik)Mid-Market
    Google AnalyticsFree

    User behavior and product analytics

    1

    Categories

    2

    Total Tools

    0

    Enterprise

    1

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    14 Resources

    4
    Scripts
    10
    Styles
    2
    Async
    1
    Defer

    Top Script Sources

    SiteGlobals(2)piwik.itzbund.de(1)formularbot-viola.bzst.de(1)

    Website Identity

    bzst.de

    Location detected: 🇩🇪 Germanyvia tld
    de

    Social Profiles

    FacebookX (Twitter)

    Sponsored

    Last analyzed: 26 Apr 2026 at 22:25

    Historical Analysis & Change Tracking