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brockhaus.de

https://brockhaus.de· First analyzed 07 May 2026· Updated 07 May 2026
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brockhaus.de
Desktop screenshot of brockhaus.de
Mobile screenshot of brockhaus.de
Mobile

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Hosting Provider

RunCloud
aws.amazon.com

IP Address

63.178.159.189

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS16509

Organization

AWS EC2 (eu-central-1)

Server

Nginx

Nameservers

ns-365.awsdns-45.com.ns-938.awsdns-53.net.ns-1099.awsdns-09.org.ns-1817.awsdns-35.co.uk.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
687 ms10%
Speed Index
893 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
62 KB
60 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv.
cms
salientCustom

Technology Stack

13 Technologies Detected

Plugins

5
Js_Composer_SalientSalient PortfolioSalient Core
WooCommerce
Yoast SEO

Libraries

1
jQueryv3.7.1

UI Components

1
Fancybox

Other

1
Anime.js

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Analytics

1
Google Analytics

Tag Managers

1
Google Tag Manager

Web Servers

1
Nginx

SEO Analysis

A80/100
26
5
1
Meta Tags14/15
Content3/12
Headings6/8
Technical24/25
E-E-A-T7/7
Images6/7
Links2/5
URL5/5
Social5/5
Freshness4/4
Mobile1/4
Indexability3/3
B
brockhaus.debrockhaus.de

Entdecke die neue Welt des Lernens! - Brockhaus Startseite

Entdecke die neue Welt des Lernens! ✓ für Schulen ✓ für Bibliotheken ✓ für Zuhause Besuche die Brockhaus Startseite

Title Length58 chars

Recommended: 50-60 chars (~353px / 580px)

Description Length115 chars

Recommended: 120-160 chars

Issues (1)

  • • Very thin content (9 words). Search engines need substantial content for ranking.

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

6 URLs

6 sub-sitemaps

robots.txt

7 rules

Sitemap reference found

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.

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AI & LLM Readiness

D42/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
13/25
Citation
2/25

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
Text ratio:1%
Words:684
Token eff.:Optimal

Structured Data

5 JSON-LD
Article×1.2Person×1.3Organization×1.1WebSiteSearchAction
sameAs entity links

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 (11)
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.
C
64/100
8
Passed
5
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
6/20
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
7/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
1/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 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.
65/100
A+
8 mg
CO₂e / view
62.4 KB
Page Weight
95%
Cleaner Than
New Visitor
9 mg
vs
Returning (cached)
4 mg
Annual (10K/mo)
924 g
Emission Segments
Data Center
2 mg
Network
2 mg
Device
4 mg
Resource Breakdown
Images
3.8 KB
HTML
57.9 KB
Other
641 B
Green Hosting Not Verified
RunCloud
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

25%Critical
Critical / Transactional

HTTPS

No WAF

127d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

13.08.2025

Valid Until

11.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (10)

ne.se*.brockhaus.atord.se*.brockhaus.de*.ne.sebrockhaus.debrockhaus.atbrockhaus.ch+2 more

SHA-256 Fingerprint

F7:35:7E:D8:0C:06:AD:FA:E7:31:F7:DB:35:CD:AB:F5:04:48:63:41...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🔵 1 Week(max-age=604800)
containerbuildtime
manual
content-encoding
⚡ Brotli(br)
content-type
text/html; charset=UTF-8
date
Thu, 07 May 2026 14:17:50 GMT
gatewaydockerversion
611ba6541568f0b0c0b2e318d2a54095817c33cc
Good Warning Issue

Email Infrastructure

Google Workspace

Score

90

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

aspmx.l.google.com
alt2.aspmx.l.google.com
alt3.aspmx.l.google.com
alt4.aspmx.l.google.com

+1 more

Domain Information

brockhaus.de

Last Updated

29.07.2025

DNSSEC
Not Enabled

Privacy & Compliance

Quantcast Choice

Cookie Consent Banner
Quantcast Choice
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Quantcast Choice
Privacy policy page linked
Data Protection Officer mentioned

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
66/100
Mobile Friendly159 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, maximum-scale=1, user-scalable=0
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

DejaVu Sans

WCAG Partial
77/100
Readability
/30
23/30

18px · LH 1.40

Hierarchy
/20
19/20

6.6x ratio · ✓ H1→H6

WCAG
/25
19/25

1:1 min contrast

Performance
/25
16/25

2 fonts · 10 req

Heading Font

DejaVu Sans

Sans119px

Body Font

DejaVu Sans

Sans18px

Contrast Ratio

1:1

1 issue

Reading Comfort

~38 CPL

Narrow lines
119px
h1
36px
h2
20px
h3
20px
h4
18px
p

✅ Excellent readability: 18px body text is ideal for all devices.

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

❌ Very complex text: Flesch score 26/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 1 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 6.6x larger than body text.

Buy on MyFontsFlesch 26

Color Palette

5 unique colors
2.07:1 Fail Light
#b4b4b4
Other· 72.1%
#ffffff
Background· 19.900000000000002%
#5b8aa3
Primary· 1.7%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

20 Resources

20
Scripts
0
Styles
5
Async
14
Defer

Top Script Sources

start.brockhaus.de(15)cdn.consentmanager.net(2)googletagmanager.com(1)delivery.consentmanager.net(1)a.delivery.consentmanager.net(1)

Website Identity

Brockhaus

Brockhaus

Organization

Entdecke die neue Welt des Lernens! ✓ für Schulen ✓ für Bibliotheken ✓ für Zuhause Besuche die Brockhaus Startseite

service@brockhaus.de
//start.brockhaus.de/info
Location detected: 🇩🇪 Germanyvia tld
📧 Google Workspacede

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Last analyzed: 07 May 2026 at 14:18

Historical Analysis & Change Tracking