kubi-online.de

https://kubi-online.de· First analyzed 20 May 2026· Updated 20 May 2026

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kubi-online.de

Mobile

Sponsored

Hosting Provider

IONOS (1&1)

ionos.com

IP Address

217.160.35.43

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Essen, Germany

ASN

AS8560

Organization

De Fra Ionos Cloud Fra

Server

Nginx

Nameservers

vc8-16.mol-nameserver.de.nsb9.schlundtech.de.nsc9.schlundtech.de.nsd9.schlundtech.de.

Performance

Core Web Vitals

Weight

First Contentful Paint

760 ms10%

Speed Index

988 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.3 MB

37 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

IONOS (1&1)

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

8 Technologies Detected

Analytics

Libraries

CSS Frameworks

Icon Libraries

Web Servers

Languages

SEO Analysis

C60/100

Meta Tags7/15

Content11/12

Headings3/8

Technical16/25

E-E-A-T3/7

Images4/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile3/4

Indexability3/3

kubi-online.dekubi-online.de

Kulturelle Bildung Online | kubi-online

No description available for this page.

Title Length39 chars

Recommended: 50-60 chars (~220px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description — important for click-through rates in SERPs
• Missing H1 tag — every page should have exactly one H1

10 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

52 rules

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.

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AI & LLM Readiness

D44/100

Bot Access

20/25

Machine Read.

12/25

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:10%

Words:1,415

Token eff.:Optimal

Sections/1K:17.7

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary13w

Descriptive Headingsavg 5.6w

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...

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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.

79/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

17/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

12/15

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

6/15

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.

62/100

137 mg

CO₂e / view

1.3 MB

Page Weight

70%

Cleaner Than

New Visitor

156 mg

Returning (cached)

78 mg

Annual (10K/mo)

16.4 kg

Emission Segments

Data Center

7 mg

Network

40 mg

Device

90 mg

Resource Breakdown

JavaScript

56.6 KB

Images

11.4 KB

CSS

1.2 MB

HTML

13.4 KB

Green Hosting Verified

IONOS SE

GWF Verified

2 recommendations

•Carbon footprint recommendation preview...

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Security Score

56%Poor

Interactive

HTTPS

No WAF

25d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

17.03.2026

Valid Until

15.06.2026

Subject Alternative Names (6)

kubi-online.dekulturelle-bildung-online.demail.kubi-online.dewebmail.kubi-online.dewww.kubi-online.dewww.kulturelle-bildung-online.de

SHA-256 Fingerprint

19:3D:C3:03:0B:E4:B9:BD:BF:5C:5D:1B:FC:62:3A:0B:F2:27:62:6C...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cache-control

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

content-encoding

📦 Gzip(gzip)

content-language

content-length

13398

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

mail.kubi-online.de

Domain Information

kubi-online.de

Last Updated

05.03.2025

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Notice (WP)

Cookie Consent Banner

Cookie Notice (WP)

GDPR Indicators

Cookie consent banner detected

CMP: Cookie Notice (WP)

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.

76/100

Mobile Friendly6 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, minimum-scale=1, shrink-to-fit=no

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Open Sans

WCAG Partial

65/100

Readability

/30

16/30

15px · LH 1.40

Hierarchy

/20

19/20

2.4x ratio · ✓ H1→H6

WCAG

/25

16/25

1:1 min contrast

Performance

/25

14/25

2 fonts · 9 req

Heading Font

Open Sans

Sans36px

Body Font

Open Sans

Sans15px

Contrast Ratio

1:1

15 issues

Reading Comfort

~44 CPL

Narrow lines

36px

32px

16px

15px

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 15 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 2.4x larger than body text.

Buy on MyFontsFlesch 0

Color Palette

12 unique colors

Light

#7f7f7f

Other· 20.2%

#333426

Secondary· 16%

#ffffff

Primary· 0%

#71651e

Accent· 13.899999999999999%

#3d5d64

Secondary· 8.7%

#777657

Secondary· 7.5%

#614d1a

Accent· 6.4%

#060504

Secondary· 6.2%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

Matomo (Piwik)Mid-Market

User behavior and product analytics

Sponsored

Scripts & Styles

10 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(4)stats.mol.domains(1)googletagmanager.com(1)cdn.kiprotect.com(1)code.jquery.com(1)

Website Identity

kubi-online.de

Location detected: 🇩🇪 Germanyvia tld

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Last analyzed: 20 May 2026 at 22:36

Historical Analysis & Change Tracking