rexx-systems.com

https://rexx-systems.com· First analyzed 30 Apr 2026· Updated 30 Apr 2026

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rexx-systems.com

Mobile

Sponsored

Hosting Provider

rexx systems GmbH

IP Address

213.95.153.122

Site Location

🇩🇪 Hamburg, Germanyvia schema

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS12337

Organization

rexx systems GmbH

Server

Nginx

Nameservers

pdns02.domaincontrol.com.ns3.routing.net.ns2.routing.net.ns1.routing.net.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.1 s10%

Speed Index

1.5 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

341 KB

106 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

rexx2021Custom

Technology Stack

24 Technologies Detected

Plugins

Dynamic Content For Elementor

Libraries

Frameworks

UI Components

Other

CSS Frameworks

Icon Libraries

Analytics

Tag Managers

Web Servers

Security

SEO Analysis

A+90/100

Meta Tags15/15

Content3/12

Headings8/8

Technical25/25

E-E-A-T7/7

Images7/7

Links5/5

URL5/5

Social5/5

Freshness4/4

Mobile3/4

Indexability3/3

rexx-systems.comrexx-systems.com

Innovative Software, die Mittelstand & Konzerne begeistert

3.000 Kunden✔️ Mittelstand & Konzerne✔️ Cloud & on premise✔️ International✔️ Modular✔️. Seit 25 Jahren: HR Software, Recruiting, Talentmanagement und KI.

Title Length58 chars

Recommended: 50-60 chars (~349px / 580px)

Description Length153 chars

Recommended: 120-160 chars

Issues (1)

• Very thin content (7 words). Search engines need substantial content for ranking.

2 issues found

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Crawlability

Sitemap

Type: index

6 URLs

6 sub-sitemaps

robots.txt

29 rules

Sitemap reference found

Local SEO

Local Search Readiness

53/100

Fair

13 11

Sponsored

AI & LLM Readiness

D55/100

Bot Access

21/25

Machine Read.

13/25

Schema Data

19/25

Citation

2/25

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

Text ratio:2%

Words:1,864

Token eff.:Optimal

Structured Data

9 JSON-LD

FAQPage×1.5Article×1.2Person×1.3Organization×1.1WebSiteVideoObjectSearchAction

sameAs entity links

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (11)

AI readiness recommendation preview...

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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.

67/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

6/20

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

14/15

Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.

Keyboard & Focus

11/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

1/15

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.

80/100

A+

34 mg

CO₂e / view

340.7 KB

Page Weight

90%

Cleaner Than

New Visitor

39 mg

Returning (cached)

20 mg

Annual (10K/mo)

4.1 kg

Emission Segments

Data Center

2 mg

Network

10 mg

Device

23 mg

Resource Breakdown

JavaScript

32.5 KB

Images

39.7 KB

CSS

8.8 KB

Fonts

155.9 KB

HTML

103.8 KB

Green Hosting Verified

noris network AG

GWF Verified

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

89%Very Good

Interactive

HTTPS

No WAF

18d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

ZeroSSL

Key Algorithm

ECDSA (secp384r1) (384 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

17.02.2026

Valid Until

18.05.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.rexx-systems.comrexx-systems.com

SHA-256 Fingerprint

EA:0D:E3:0D:68:7A:94:39:49:68:0D:3A:AD:70:76:A7:A3:DF:E0:73...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

access-control-allow-origin

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-security-policy

default-src 'self' https: data: blob:; script-src 'self' htt...

content-type

text/html; charset=UTF-8

cross-origin-opener-policy

same-origin-allow-popups

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

mx002.rexx-systems.com

Domain Information

rexx-systems.com

Domain Age

18y 7m

Created

01.10.2007

Expires

01.10.2026

Last Updated

02.10.2025

Registrar

HTTP.NET INTERNET GMBH

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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.

80/100

Mobile Friendly83 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

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Open Sans Condensed + Overpass

WCAG Partial

70/100

Readability

/30

26/30

18px · LH 1.50

Hierarchy

/20

14/20

1.11x ratio · ✓ H1→H6

WCAG

/25

16/25

1:1 min contrast

Performance

/25

14/25

3 fonts · 4 req

Heading Font

Open Sans Condensed

Sans20px

Body Font

Overpass

Sans18px

Contrast Ratio

1:1

12 issues

Reading Comfort

~36 CPL

Narrow lines

20px

70px

35px

18px

Octave

Scale

✅ 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 21/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 12 elements below WCAG AA threshold (min 1.0:1).

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

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

Buy on MyFontsFluid Type (rem)Flesch 21

Color Palette

12 unique colors

7.49:1 AAA Light

#ffffff

Text· 14.200000000000001%

#505655

Text· 6.9%

#05262d

Primary· 19.299999999999997%

#040e11

Accent· 6.4%

#637478

Secondary· 6.1%

#473936

Secondary· 4.5%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

24 Resources

Scripts

Styles

Async

Defer

Top Script Sources

cdn.rexx-systems.com(17)cdn.ccm19.de(2)gstatic.com(1)

Website Identity

Rexx Systems

ProfessionalService

Rai ist Ihr KI-Assistent in der rexx Suite, der Sie bei allen Fragen und Aufgaben in der Anwendung unterstützt. Ob es um die Nutzung der rexx Suite geht, um ...

info@rexx-systems.com

+49408900800

www.rexx-systems.com

18 years old

Süderstrasse 75-79, Hamburg

20097, Hamburg

Deutschland

Location detected: 🇩🇪 Germany, Hamburgvia schema

HTTP.NET INTERNET GMBHde-DE

Social Profiles

Facebook Instagram LinkedIn Bluesky

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Last analyzed: 30 Apr 2026 at 11:39

Historical Analysis & Change Tracking