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a-trust.at

https://a-trust.at· First analyzed 24 May 2026· Updated 24 May 2026
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a-trust.at
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Mobile

Sponsored

Hosting Provider

Nessus GmbH

IP Address

84.242.9.222

Site Location

🇦🇹 Austriavia tld

Server Location

🇦🇹 Vienna, Austria

ASN

AS47692

Organization

Nessus GmbH

Server

Microsoft IIS

Nameservers

ns11.govix.at.dns4.a1.net.dns5.a1.net.ns5.univie.ac.at.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
744 ms10%
Speed Index
967 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.8 MB
28 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Nessus GmbH

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

2 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Web Servers

1
Microsoft IISv10.0

SEO Analysis

C66/100
19
6
0
Meta Tags8/15
Content11/12
Headings8/8
Technical18/25
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
A
a-trust.ata-trust.at

A-Trust - Einfach Sicher.

Wir sind das verlässliche Partner-Unternehmen, wenn es um die Sicherheit im digitalen Raum geht. A-Trust steht seit über 25 Jahren für Compliance, Integrität...

Description truncated.
Title Length25 chars

Recommended: 50-60 chars (~148px / 580px)

Description Length170 chars

Recommended: 120-160 chars

Issues (0)

    6 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    208 URLs

    robots.txt

    22 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    3/100
    Poor
    1 14 2

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

    Sponsored

    AI & LLM Readiness

    D46/100
    Bot Access
    20/25
    Machine Read.
    14/25
    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:21%
    Words:498
    Token eff.:Optimal
    Sections/1K:14.1
    Depth:1/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary28w
    Descriptive Headingsavg 6.4w
    Canonical URL
    Open Graph0/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (7)
    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
    86/100
    14
    Passed
    1
    Critical
    0
    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
    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
    7/15
    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.
    36/100
    D
    226 mg
    CO₂e / view
    1.8 MB
    Page Weight
    60%
    Cleaner Than
    New Visitor
    258 mg
    vs
    Returning (cached)
    129 mg
    Annual (10K/mo)
    27.1 kg
    Emission Segments
    Data Center
    51 mg
    Network
    54 mg
    Device
    121 mg
    Resource Breakdown
    JavaScript
    3.9 KB
    Images
    749.4 KB
    CSS
    1.0 MB
    HTML
    5.3 KB
    Green Hosting Not Verified
    Nessus GmbH
    4 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    B

    Security Score

    76%Good
    Interactive

    HTTPS

    No WAF

    173d

    Certificate Details

    Type

    Organization Validated (OV)

    Certificate Authority

    DigiCert Inc

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.2

    HTTP Protocol

    HTTP/2

    Valid From

    13.10.2025

    Valid Until

    13.11.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    www.a-trust.ata-trust.at

    SHA-256 Fingerprint

    2F:A7:E0:A8:DA:48:44:30:09:37:18:87:8D:44:6F:5A:EA:95:44:0D...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    accept-ranges
    bytes
    content-encoding
    📦 Gzip(gzip)
    content-length
    532
    content-security-policy
    frame-ancestors 'self' *.a-trust.at *.handy-signatur.at a-tr...
    content-type
    text/html
    date
    Sun, 24 May 2026 19:09:40 GMT
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    73

    SPF
    DKIM
    DMARC

    DMARC Policy

    Quarantine (Moderate)

    MX Records (1)

    mail1.a-trust.at

    Domain Information

    a-trust.at

    Registrar

    A1 Telekom Austria AG ( https://nic.at/registrar/16 )

    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.
    C
    60/100
    Mobile Friendly
    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
    3 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Roboto

    WCAG Partial
    77/100
    Readability
    /30
    24/30

    18px · LH 1.50

    Hierarchy
    /20
    18/20

    3.33x ratio · ✓ H1→H6

    WCAG
    /25
    16/25

    1:1 min contrast

    Performance
    /25
    19/25

    System fonts

    Heading Font

    Roboto

    Sans60px

    Body Font

    Roboto

    Sans18px

    Contrast Ratio

    1:1

    16 issues

    Reading Comfort

    ~35 CPL

    Narrow lines
    60px
    h1
    50px
    h2
    23px
    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 20/100. Consider shorter sentences and simpler words.

    ⚠️ Partial contrast: 16 elements below WCAG AA threshold (min 1.0:1).

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

    ✅ Strong hierarchy: Headlines are 3.3x larger than body text.

    Flesch 20

    Color Palette

    7 unique colors
    Light
    #ffffff
    Background· 38.3%
    #e03a2c
    Primary· 10.9%
    #b21c1e
    Primary· 4.5%
    #bc5d52
    Secondary· 3.2%

    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

    2 Resources

    1
    Scripts
    1
    Styles
    0
    Async
    0
    Defer

    Top Script Sources

    local(1)

    Website Identity

    a-trust.at

    Location detected: 🇦🇹 Austriavia tld
    A1 Telekom Austria AG ( https://nic.at/registrar/16 )de

    Sponsored

    Last analyzed: 24 May 2026 at 19:09

    Historical Analysis & Change Tracking