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elektronik-kompendium.de

https://elektronik-kompendium.de· First analyzed 29 Apr 2026· Updated 29 Apr 2026
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elektronik-kompendium.de
Desktop screenshot of elektronik-kompendium.de
Mobile screenshot of elektronik-kompendium.de
Mobile

Sponsored

Hosting Provider

IONOS (1&1)
ionos.com

IP Address

217.160.0.96

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Essen, Germany

ASN

AS8560

Organization

Ionos Inf

Server

Apache

Nameservers

ns1120.ui-dns.biz.ns1120.ui-dns.de.ns1120.ui-dns.org.ns1120.ui-dns.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
544 ms10%
Speed Index
707 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
808 KB
24 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
Infrastructure
Hosting
IONOS (1&1)

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

5 Technologies Detected

CSS Frameworks

2
Bootstrap
Tailwind CSS

Libraries

1
jQuery

Icon Libraries

1
Font Awesome

Web Servers

1
Apache

SEO Analysis

D58/100
15
7
1
Meta Tags11/15
Content8/12
Headings3/8
Technical15/25
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
E
elektronik-kompendium.deelektronik-kompendium.de

Elektronik-Kompendium.de - Elektronik einfach und leicht verständlich

Elektronik, Computertechnik, Kommunikationstechnik und Netzwerktechnik einfach und leicht verständlich erklärt.

Title Length69 chars

Recommended: 50-60 chars (~409px / 580px)

Description Length111 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing H1 tag — every page should have exactly one H1

8 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

6 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.

Sponsored

AI & LLM Readiness

F33/100
Bot Access
20/25
Machine Read.
4/25
Schema Data
0/25
Citation
9/25

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
blockquotesnavheader/footer
Text ratio:10%
Words:282
Token eff.:Too Short
Sections/1K:46.1
Depth:3/5

Structured Data

No Schema

Citation Readiness

Opening Summary10w
Descriptive Headingsavg 3.8w
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...
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.
C
63/100
9
Passed
5
Critical
1
Warnings
Images & Alt Text
15/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
13/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
5/15
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.
4 recommendations
  • •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.
64/100
B
82 mg
CO₂e / view
808.4 KB
Page Weight
80%
Cleaner Than
New Visitor
93 mg
vs
Returning (cached)
47 mg
Annual (10K/mo)
9.8 kg
Emission Segments
Data Center
4 mg
Network
24 mg
Device
54 mg
Resource Breakdown
JavaScript
50.5 KB
Images
148.7 KB
CSS
603.2 KB
HTML
5.9 KB
Green Hosting Verified
IONOS SE
GWF Verified
2 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

100d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

24.07.2025

Valid Until

07.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.elektronik-kompendium.deelektronik-kompendium.de

SHA-256 Fingerprint

E5:69:E5:02:C6:79:5E:11:94:67:CF:BD:D8:49:5D:DA:DB:4D:88:6D...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🟡 0s(max-age=0)
content-encoding
📦 Gzip(gzip)
content-type
text/html
date
Wed, 29 Apr 2026 19:21:34 GMT
expires
Wed, 29 Apr 2026 19:21:34 GMT
server
Apache
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

65

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mx00.ionos.de
mx01.ionos.de

Domain Information

elektronik-kompendium.de

Last Updated

18.08.2018

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
69/100
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

Helvetica Neue

WCAG Partial
66/100
Readability
/30
24/30

21px · LH 1.50

Hierarchy
/20
6/20
WCAG
/25
17/25

2.42:1 min contrast

Performance
/25
19/25

System fonts

Heading Font

Helvetica Neue

Sans

Body Font

Helvetica Neue

Sans21px

Contrast Ratio

2.42:1

14 issues

Reading Comfort

Single Font Family

left aligned
24px
h2
22px
h3
18px
h4
21px
p

✅ Excellent readability: 21px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

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

⚠️ Partial contrast: 14 elements below WCAG AA threshold (min 2.4:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

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

Flesch 0

Color Palette

7 unique colors
Light
#ffffff
Background· 82.10000000000001%
#bf2b2b
Primary· 6.300000000000001%
#c49c94
Secondary· 3.6%
#f7efef
Primary· 1.9%
#d81515
Accent· 1.5%
#b1535c
Secondary· 1.4%

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

3 Resources

2
Scripts
1
Styles
0
Async
0
Defer

Top Script Sources

local(2)

Website Identity

elektronik-kompendium.de

Location detected: 🇩🇪 Germanyvia tld
de-DE

Sponsored

Last analyzed: 29 Apr 2026 at 19:21

Historical Analysis & Change Tracking