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leonberg.de

https://leonberg.de· First analyzed 29 May 2026· Updated 29 May 2026
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leonberg.de
Desktop screenshot of leonberg.de
Mobile screenshot of leonberg.de
Mobile

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Hosting Provider

TNG Stadtnetz GmbH

IP Address

213.178.85.216

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Kiel, Germany

ASN

AS13101

Organization

TNG Stadtnetz GmbH

Server

Nginx

Nameservers

ns2.advantic.net.ns1.advantic.net.

Performance

88

Core Web Vitals

Weight

First Contentful Paint
1.6 s10%
Speed Index
2.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
7 MB
89 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
TNG Stadtnetz GmbH

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

7 Technologies Detected

Libraries

3
jQueryv3.6.1
jQuery UI
Slick Carousel

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Web Servers

1
Nginx

Analytics

1
FullStory

SEO Analysis

C69/100
21
6
1
Meta Tags4/15
Content10/12
Headings8/8
Technical16/25
E-E-A-T3/7
Images4/7
Links5/5
URL5/5
Social5/5
Freshness2/4
Mobile4/4
Indexability3/3
L
leonberg.deleonberg.de

Startseite / Stadt Leonberg

No description available for this page.

Title Length27 chars

Recommended: 50-60 chars (~165px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing meta description — important for click-through rates in SERPs

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

2,826 URLs

robots.txt

8 rules

Sitemap reference found

Local SEO

Local Search Readiness

18/100
Poor
5 11 2

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

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AI & LLM Readiness

F39/100
Bot Access
20/25
Machine Read.
8/25
Schema Data
0/25
Citation
11/25

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:6%
Words:2,232
Token eff.:Optimal
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary10w
Descriptive Headings
Canonical URL
Open Graph2/3
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

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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
89/100
17
Passed
1
Critical
1
Warnings
Images & Alt Text
20/20
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
15/15
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.

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.
15/100
F
891 mg
CO₂e / view
7.0 MB
Page Weight
5%
Cleaner Than
New Visitor
1.02 g
vs
Returning (cached)
509 mg
Annual (10K/mo)
106.9 kg
Emission Segments
Data Center
199 mg
Network
214 mg
Device
478 mg
Resource Breakdown
JavaScript
527.7 KB
Images
1.5 MB
CSS
5.0 MB
HTML
36.4 KB
Green Hosting Not Verified
TNG Stadtnetz GmbH
8 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
C

Security Score

66%Fair
Interactive

HTTPS

No WAF

189d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

03.11.2025

Valid Until

04.12.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.leonberg.deleonberg.de

SHA-256 Fingerprint

F0:77:C1:00:D6:02:91:5B:69:B2:1B:FC:E0:02:F4:3C:2D:C2:B6:B2...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-origin
https://kufer-web.leonberg.de
content-encoding
📦 Gzip(gzip)
content-security-policy
frame-ancestors default-src 'self' https://ikiss.intra.leonb...
content-type
text/html; charset=utf-8
date
Fri, 29 May 2026 00:35:08 GMT
referrer-policy
no-referrer-when-downgrade
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

65

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (4)

mx6.kvnbw.de
mx9.kvnbw.de
mx7.kvnbw.de
mx8.kvnbw.de

Domain Information

leonberg.de

Last Updated

16.12.2016

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
74/100
Mobile Friendly4 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...
Upgrade to view recommendations

Typography & Readability

Open Sans

WCAG AA
78/100
Readability
/30
22/30

20px · LH 1.60

Hierarchy
/20
19/20

2x ratio · ✓ H1→H6

WCAG
/25
21/25

5.17:1 min contrast

Performance
/25
16/25

1 font · 9 req

Heading Font

Open Sans

Sans40px

Body Font

Open Sans

Sans20px

Contrast Ratio

5.17:1

WCAG AA (≥4.5:1)

Reading Comfort

~41 CPL

Narrow lines
40px
h1
40px
h2
25px
h3
20px
p

✅ Excellent readability: 20px body text is ideal for all devices.

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

❌ Very complex text: Flesch score 6/100. Consider shorter sentences and simpler words.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.2:1).

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

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

Buy on MyFontsFlesch 6

Color Palette

12 unique colors
Light
#ffffff
Primary· 18.4%
#d7d5ce
Secondary· 17.3%
#f4f1e8
Secondary· 12.299999999999999%
#f9cf36
Accent· 9.8%
#24292e
Secondary· 9.1%
#2053a1
Accent· 7.5%
#71848b
Secondary· 7.3%
#465766
Secondary· 7.2%

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

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Scripts & Styles

27 Resources

20
Scripts
7
Styles
1
Async
0
Defer

Top Script Sources

local(15)assets.viind.com(1)cdn-eu.readspeaker.com(1)sdp-knowledge.cluster02.viind.io(1)static.conword.io(1)

Website Identity

leonberg.de

[email protected]
071529900
Location detected: 🇩🇪 Germanyvia tld
de

Social Profiles

Facebook

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Last analyzed: 29 May 2026 at 00:35

Historical Analysis & Change Tracking

leonberg.de Technology Stack - Built With jQuery, jQuery UI, Tailwind CSS, Font Awesome, Nginx | StackOptic | StackOptic