datacenter-insider.de

https://datacenter-insider.de· First analyzed 07 May 2026· Updated 07 May 2026

Export

Mobile

Sponsored

Hosting Provider

IONOS (1&1)

ionos.com

IP Address

212.227.224.235

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS8560

Organization

De Fra Ionos Cloud Fra

Nameservers

secondary006.dtag.net.dns.vogel-net.de.pns.dtag.de.

Performance

Core Web Vitals

Weight

First Contentful Paint

699 ms10%

Speed Index

909 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

131 KB

51 requests

Image Optimization

Lazy LoadWebPResponsiveThumbor

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

IONOS (1&1)

Technology Stack

6 Technologies Detected

Advertising

Google Ads Google AdSense

CSS Frameworks

Analytics

Tag Managers

Customer Support

SEO Analysis

C60/100

Meta Tags7/15

Content10/12

Headings1/8

Technical18/25

E-E-A-T0/7

Images6/7

Links5/5

URL5/5

Social1/5

Freshness0/4

Mobile4/4

Indexability3/3

datacenter-insider.dedatacenter-insider.de

DataCenter-Insider - das Rechenzentrums-Fachportal zu Software Defi...

Tipps, Wissen und Information zu Rechenzentren, Virtualisierung und Software Defined Datacenter: Tools und Anwendungen, IT- und RZ-Infrastruktur von USV bis ...

Title truncated. Description truncated.

Title Length182 chars

Recommended: 50-60 chars (~1085px / 580px)

Description Length246 chars

Recommended: 120-160 chars

Issues (2)

• Title is too long (182 chars, ~1085px). Will be truncated in search results.
• Missing H1 tag — every page should have exactly one H1

10 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

118 URLs

118 sub-sitemaps

robots.txt

20 rules

Sitemap reference found

Local SEO

Local Search Readiness

10/100

Poor

3 13 1

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

Sponsored

AI & LLM Readiness

F31/100

Bot Access

20/25

Machine Read.

3/25

Schema Data

3/25

Citation

5/25

AI Bot Access

13/14 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

Text ratio:6%

Words:4,823

Token eff.:Poor Structure

Structured Data

1 JSON-LD

WebSiteSearchAction

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 (12)

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

11/20

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

Forms & Inputs

10/15

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

2/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

4 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.

83/100

A+

13 mg

CO₂e / view

130.8 KB

Page Weight

95%

Cleaner Than

New Visitor

15 mg

Returning (cached)

8 mg

Annual (10K/mo)

1.6 kg

Emission Segments

Data Center

<0.001 g

Network

4 mg

Device

9 mg

Resource Breakdown

Images

2.8 KB

HTML

128.0 KB

Green Hosting Verified

IONOS SE

GWF Verified

3 recommendations

•Carbon footprint recommendation preview...

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Security Score

76%Good

Interactive

HTTPS

No WAF

86d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

03.05.2026

Valid Until

01.08.2026

Subject Alternative Names (2)

datacenter-insider.dewww.datacenter-insider.de

SHA-256 Fingerprint

D5:4C:82:B0:F9:1D:11:6D:F9:C2:DE:F2:C6:2A:DF:4F:0A:4B:C7:6E...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control

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

content-encoding

📦 Gzip(gzip)

content-security-policy

frame-ancestors 'self'

content-type

text/html; charset=UTF-8

date

Thu, 07 May 2026 08:50:29 GMT

expires

Thu, 19 Nov 1981 08:52:00 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

datacenterinsider-de02e.r-v1.mx.microsoft

Domain Information

datacenter-insider.de

Last Updated

16.10.2024

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.

61/100

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=1.0

4 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Fira Sans VF

WCAG AA

62/100

Readability

/30

16/30

15px · LH 1.50

Hierarchy

/20

8/20

WCAG

/25

22/25

5.64:1 min contrast

Performance

/25

16/25

1 font

Heading Font

Fira Sans VF

Sans

Body Font

Fira Sans VF

Sans15px

Contrast Ratio

5.64:1

WCAG AA (≥4.5:1)

Reading Comfort

~43 CPL

Narrow lines

27px

15px

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

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

❌ Very complex text: Flesch score 3/100. Consider shorter sentences and simpler words.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.6:1).

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

✅ Lean font stack: 1 font families keeps load times fast.

Buy on MyFontsFlesch 3

Color Palette

6 unique colors

4.48:1 AA Large Light

#ffffff

Primary· 44.599999999999994%

#777777

Other· 38.49999999999999%

#214268

Accent· 2.9%

#4189d9

Accent· 2.5%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

8 Resources

Scripts

Styles

Async

Defer

Top Script Sources

cdn.consentmanager.net(3)googletagmanager.com(1)cp.datacenter-insider.de(1)cdn2.vogel.de(1)b.delivery.consentmanager.net(1)

Website Identity

DataCenter-Insider

www.datacenter-insider.de

Location detected: 🇩🇪 Germanyvia tld

Social Profiles

Facebook X (Twitter)YouTube

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Last analyzed: 07 May 2026 at 08:50

Historical Analysis & Change Tracking