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gsa-online.de

https://gsa-online.de· First analyzed 16 May 2026· Updated 16 May 2026
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gsa-online.de
Desktop screenshot of gsa-online.de
Mobile screenshot of gsa-online.de
Mobile

Sponsored

Hosting Provider

Solid Systems LLC

IP Address

149.5.4.213

Site Location

🇩🇪 Rostock, Germanyvia phone

Server Location

🇳🇱 Amsterdam, Netherlands

ASN

AS399275

Organization

Solid Systems LLC

Server

Apache

CDN

Cloudflare

WAF

Cloudflare

Nameservers

carl.ns.cloudflare.com.jule.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
652 ms10%
Speed Index
848 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
458 KB
49 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Solid Systems LLC
CDN
Cloudflare

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

4 Technologies Detected

UI Components

1
Fancybox

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Web Servers

1
Apache

SEO Analysis

A83/100
25
4
0
Meta Tags11/15
Content11/12
Headings8/8
Technical25/25
E-E-A-T0/7
Images6/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
G
gsa-online.degsa-online.de

GSA SEO & Marketing Software Products

The GSA company develops software products. Especially SEO Software for Search Engine Ranking and Marketing.

Title Length37 chars

Recommended: 50-60 chars (~238px / 580px)

Description Length108 chars

Recommended: 120-160 chars

Issues (0)

    4 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    1,286 URLs

    robots.txt

    3 rules

    Sitemap reference found

    Allows all crawlers

    Local SEO

    Local Search Readiness

    68/100
    Good
    17 8

    Sponsored

    AI & LLM Readiness

    D57/100
    Bot Access
    20/25
    Machine Read.
    18/25
    Schema Data
    6/25
    Citation
    13/25

    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.txtvalid
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    nav
    Text ratio:19%
    Words:4,603
    Token eff.:Good
    Sections/1K:11.3
    Depth:1/5

    Structured Data

    1 JSON-LD
    Person×1.3LocalBusiness×1.1
    sameAs entity links

    Citation Readiness

    Opening Summary
    Descriptive Headingsavg 2.9w
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (6)
    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
    83/100
    12
    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
    4/15
    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.
    66/100
    A
    57 mg
    CO₂e / view
    458.2 KB
    Page Weight
    90%
    Cleaner Than
    New Visitor
    65 mg
    vs
    Returning (cached)
    32 mg
    Annual (10K/mo)
    6.8 kg
    Emission Segments
    Data Center
    13 mg
    Network
    14 mg
    Device
    30 mg
    Resource Breakdown
    JavaScript
    81.6 KB
    Images
    233.4 KB
    CSS
    2.2 KB
    Fonts
    75.6 KB
    HTML
    20.5 KB
    Other
    44.8 KB
    Green Hosting Not Verified
    Solid Systems LLC
    2 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    A

    Security Score

    81%Very Good
    Interactive

    HTTPS

    No WAF

    65d

    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

    21.04.2026

    Valid Until

    20.07.2026

    Subject Alternative Names (5)

    docu.gsa-online.deforum.gsa-online.degsa-online.demail.gsa-online.dewww.gsa-online.de

    SHA-256 Fingerprint

    46:BF:D1:81:70:73:C1:CF:9D:88:B8:A7:B0:D5:F7:2C:0C:16:14:85...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🟢 1 Month(max-age=30758400, public, must-revalidate)
    content-encoding
    📦 Gzip(gzip)
    content-length
    20703
    content-security-policy
    default-src *.gsa-online.de; img-src 'self' i.ytimg.com data...
    content-type
    text/html; charset=UTF-8
    date
    Sat, 16 May 2026 01:44:24 GMT
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    95

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (1)

    gsa-online.de

    Domain Information

    gsa-online.de

    Last Updated

    13.02.2023

    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.
    C
    65/100
    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
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Arial

    WCAG AA
    79/100
    Readability
    /30
    24/30

    18px · LH 1.60

    Hierarchy
    /20
    16/20

    2x ratio · ✓ H1→H6

    WCAG
    /25
    19/25

    5.01:1 min contrast

    Performance
    /25
    20/25

    System fonts

    Heading Font

    Arial

    Sans36px

    Body Font

    Arial

    Sans18px

    Contrast Ratio

    5.01:1

    WCAG AA (≥4.5:1)

    Reading Comfort

    Single Font Family

    left aligned
    36px
    h1
    30px
    h2
    24px
    h3

    ✅ Excellent readability: 18px body text is ideal for all devices.

    ✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

    ✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.0:1).

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

    ✅ Strong hierarchy: Headlines are 2.0x larger than body text.

    ✅ System fonts: Zero font loading delay — best possible LCP impact.

    Flesch 56

    Color Palette

    6 unique colors
    Light
    #ffffff
    Background· 86.8%
    #a9b6c0
    Secondary· 3.1%
    #5f759a
    Primary· 0%
    #9e838a
    Secondary· 2.4%
    #ebeff0
    Secondary· 2.3%

    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
    1
    Defer

    Top Script Sources

    local(1)

    Website Identity

    GSA GmbH

    GSA GmbH

    LocalBusiness

    The GSA company develops software products. Especially SEO Software for Search Engine Ranking and Marketing.

    +493817006224
    www.gsa-online.de/

    Krischanweg 7, Rostock

    18069, Rostock, MV

    Location detected: 🇩🇪 Germany, Rostockvia phone
    enEst. 2005

    Sponsored

    Last analyzed: 16 May 2026 at 01:44

    Historical Analysis & Change Tracking