vdi-nachrichten.com

https://vdi-nachrichten.com· First analyzed 01 May 2026· Updated 01 May 2026

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vdi-nachrichten.com

Mobile

Sponsored

Hosting Provider

Flying Circus Internet Operations GmbH

IP Address

185.105.252.254

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Oberhausen, Germany

ASN

AS41981

Organization

Flying Circus Internet Operations GmbH

Server

Nginx

CDN

Varnish

Nameservers

ns2-08.azure-dns.net.ns3-08.azure-dns.org.ns4-08.azure-dns.info.ns1-08.azure-dns.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.2 s10%

Speed Index

1.5 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.1 MB

36 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

vdi-nachrichten.com ThemeCustom

by pooliestudios

Technology Stack

12 Technologies Detected

Plugins

Wordpress Popular Posts

Analytics

CSS Frameworks

Icon Libraries

Tag Managers

Web Servers

Languages

SEO Analysis

A82/100

Meta Tags15/15

Content11/12

Headings5/8

Technical24/25

E-E-A-T2/7

Images3/7

Links2/5

URL5/5

Social4/5

Freshness4/4

Mobile4/4

Indexability3/3

vdi-nachrichten.comvdi-nachrichten.com

VDI nachrichten - Das Nachrichtenportal für Ingenieure

VDI nachrichten bieten Fachinformationen für Ingenieure und technische Fach- und Führungskräfte rund um Technik, Wirtschaft, Gesellschaft.

Title Length54 chars

Recommended: 50-60 chars (~321px / 580px)

Description Length138 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (25/26) — critical for accessibility and SEO

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

9 URLs

9 sub-sitemaps

robots.txt

6 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

14/100

Poor

4 13

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

Sponsored

AI & LLM Readiness

D53/100

Bot Access

20/25

Machine Read.

11/25

Schema Data

7/25

Citation

15/25

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:4%

Words:757

Token eff.:Optimal

Sections/1K:27.7

Depth:1/5

Structured Data

4 JSON-LD

Organization×1.1WebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary166w

Descriptive Headingsavg 7.2w

Canonical URL

Open Graph3/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (9)

AI readiness recommendation preview...

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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.

80/100

Passed

Critical

Warnings

Images & Alt Text

18/20

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

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.

1 recommendation

•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.

73/100

116 mg

CO₂e / view

1.1 MB

Page Weight

70%

Cleaner Than

New Visitor

132 mg

Returning (cached)

66 mg

Annual (10K/mo)

13.9 kg

Emission Segments

Data Center

6 mg

Network

34 mg

Device

76 mg

Resource Breakdown

JavaScript

749.7 KB

Images

242.0 KB

CSS

34.1 KB

Fonts

100.5 KB

HTML

18.5 KB

Other

1.0 KB

Green Hosting Verified

dogado

GWF Verified

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

41%Poor

Interactive

HTTPS

No WAF

36d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

09.03.2026

Valid Until

07.06.2026

Subject Alternative Names (1)

www.vdi-nachrichten.com

SHA-256 Fingerprint

63:EB:9B:45:71:1D:B9:E5:5E:77:DD:9A:B7:95:73:51:9A:7C:16:AB...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

age

5325

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=UTF-8

date

Fri, 01 May 2026 21:32:04 GMT

link

<https://www.vdi-nachrichten.com/wp-json/>; rel="https://api...

referrer-policy

no-referrer-when-downgrade

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

MX Records (1)

vdinachrichten-com0i.mail.protection.outlook.com

Domain Information

vdi-nachrichten.com

Domain Age

29y 6m

Created

30.10.1996

Expires

29.10.2026

Last Updated

28.10.2025

Registrar

Mesh Digital Limited

DNSSEC

Not Enabled

Privacy & Compliance

Quantcast Choice

Cookie Consent Banner

Quantcast Choice

GDPR Indicators

Cookie consent banner detected

CMP: Quantcast Choice

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.

78/100

Mobile Friendly13 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, shrink-to-fit=no

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

Open Sans

WCAG Partial

68/100

Readability

/30

19/30

15px · LH 1.60

Hierarchy

/20

14/20

2.13x ratio

WCAG

/25

19/25

2.85:1 min contrast

Performance

/25

16/25

1 font · 4 req

Heading Font

Open Sans

Sans32px

Body Font

Open Sans

Sans15px

Contrast Ratio

2.85:1

2 issues

Reading Comfort

~45 CPL

Optimal (45–75)

32px

24px

18px

15px

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

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

✅ Optimal line length: ~45 chars/line (ideal 45–75 CPL).

❌ Very complex text: Flesch score 21/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 2.9:1).

⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

Buy on MyFontsFlesch 21

Color Palette

7 unique colors

15.91:1 AAA Light

#ffffff

Background· 62.800000000000004%

#222222

Other· 8.4%

#b3a793

Primary· 5.8%

#e0e3e6

Secondary· 4.7%

#64747c

Secondary· 4.6%

Business & Marketing Stack

3 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

PlausibleSMB

User behavior and product analytics

Sponsored

Scripts & Styles

17 Resources

Scripts

Styles

Async

Defer

Top Script Sources

vdi-nachrichten.com(5)googletagmanager.com(2)cdn.privacy-mgmt.com(2)plausible.io(1)storage.googleapis.com(1)

Website Identity

VDI Verlag GmbH

Organization

VDI nachrichten bieten Fachinformationen für Ingenieure und technische Fach- und Führungskräfte rund um Technik, Wirtschaft, Gesellschaft.

www.vdi-nachrichten.com/

29 years old

Location detected: 🇩🇪 Germanyvia ip

Mesh Digital Limited📧 Microsoft 365de

Sponsored

Last analyzed: 01 May 2026 at 21:32

Historical Analysis & Change Tracking