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piper.de

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

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Hosting Provider

DSI

IP Address

81.201.148.165

Site Location

🇩🇪 München, Germanyvia schema_nap

Server Location

🇩🇪 Dresden, Germany

ASN

AS16205

Organization

DSI

Server

Apache

Nameservers

ns81.domaincontrol.com.ns82.domaincontrol.com.

Performance

94

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%
10.1 MB
48 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
TYPO3

Technology Stack

4 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Analytics

1
Google Analytics

Tag Managers

1
Google Tag Manager

Web Servers

1
Apache

SEO Analysis

B74/100
21
7
1
Meta Tags14/15
Content11/12
Headings3/8
Technical20/25
E-E-A-T3/7
Images5/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile1/4
Indexability3/3
P
piper.depiper.de

Bücher, Bestseller, Neuerscheinungen - Piper Verlag

Willkommen bei Piper: Romane, Sachbücher, Thriller und mehr. Stöbern Sie durch unsere Bestseller, Neuerscheinungen und Klassiker - jetzt versandkostenfrei be...

Description truncated.
Title Length51 chars

Recommended: 50-60 chars (~300px / 580px)

Description Length165 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

Type: standard

318 URLs

robots.txt

7 rules

Sitemap reference found

Local SEO

Local Search Readiness

25/100
Needs Work
6 15

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AI & LLM Readiness

D49/100
Bot Access
20/25
Machine Read.
10/25
Schema Data
7/25
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:5%
Words:1,361
Token eff.:Optimal
Sections/1K:1.5
Depth:1/5

Structured Data

3 JSON-LD
Organization×1.1WebSiteSearchAction
sameAs entity links

Citation Readiness

Opening Summary394w
Descriptive Headingsavg 5w
Canonical URL
Open Graph2/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (9)
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.
B
73/100
12
Passed
4
Critical
2
Warnings
Images & Alt Text
18/20
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
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
8/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
3 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.
32/100
F
1.28 g
CO₂e / view
10.1 MB
Page Weight
5%
Cleaner Than
New Visitor
1.46 g
vs
Returning (cached)
732 mg
Annual (10K/mo)
153.7 kg
Emission Segments
Data Center
286 mg
Network
307 mg
Device
687 mg
Resource Breakdown
JavaScript
156.5 KB
Images
9.4 MB
CSS
539.5 KB
HTML
33.1 KB
Other
1.0 KB
Green Hosting Not Verified
DSI
6 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
C

Security Score

66%Fair
Interactive

HTTPS

No WAF

92d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

30.06.2025

Valid Until

30.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

piper.dewww.piper.de

SHA-256 Fingerprint

4D:63:E3:53:B8:10:D5:39:61:9F:FA:8B:D5:FE:02:33:0F:FD:47:9A...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🔴 No Cache(private, no-store, max-age=0)
content-encoding
📦 Gzip(gzip)
content-language
de-DE
content-type
text/html; charset=utf-8
date
Wed, 29 Apr 2026 10:59:48 GMT
expires
Wed, 29 Apr 2026 10:59:48 GMT
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

98

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

piper-de.mail.protection.outlook.com

Domain Information

piper.de

Last Updated

12.11.2025

DNSSEC
Not Enabled

Privacy & Compliance

Usercentrics

Cookie Consent Banner
Usercentrics
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Usercentrics
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
67/100
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
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Jost

WCAG Partial
64/100
Readability
/30
23/30

18px · LH 1.50

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

1:1 min contrast

Performance
/25
18/25

1 font · 5 req

Heading Font

Jost

Sans

Body Font

Jost

Sans18px

Contrast Ratio

1:1

6 issues

Reading Comfort

~36 CPL

Narrow lines
40px
h2
22px
h3
18px
h4
18px
p

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

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

❌ Very complex text: Flesch score 14/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 6 elements below WCAG AA threshold (min 1.0:1).

❌ 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 14

Color Palette

11 unique colors
Light
#ffffff
Background· 19.400000000000002%
#384967
Primary· 19.700000000000003%
#c9be90
Secondary· 10.4%
#e5d7af
Accent· 6.6%
#6c97b5
Secondary· 5.6%
#c4a663
Secondary· 5.5%
#d3d5c6
Secondary· 5.5%
#a99f6a
Secondary· 5%

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

12 Resources

11
Scripts
1
Styles
5
Async
7
Defer

Top Script Sources

local(6)app.usercentrics.eu(2)piper.de(1)privacy-proxy.usercentrics.eu(1)100021108.collect.igodigital.com(1)

Website Identity

Piper Verlag GmbH

Organization

In unserem Shop finden sie Bücher und Infos zu Autoren und Veranstaltungen aus den Verlagen Piper, Pendo, Malik, Malik National Geographic, Piper Fantasy und ivi.

www.piper.de/

Georgenstraße 4, München

80799, München, Bayern

Deutschland

Location detected: 🇩🇪 Germany, Münchenvia schema_nap
📧 Microsoft 365de

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Last analyzed: 29 Apr 2026 at 11:00

Historical Analysis & Change Tracking