hanser-fachbuch.de

https://hanser-fachbuch.de· First analyzed 21 May 2026· Updated 21 May 2026

Export

hanser-fachbuch.de

Mobile

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Hosting Provider

proIO GmbH

IP Address

185.20.191.124

Site Location

🇩🇪 Germanyvia phone

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS206293

Organization

proIO GmbH

Server

Apache

Nameservers

dns.noris.de.dns.noris.ch.dns.noris.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

566 ms10%

Speed Index

736 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

2.1 MB

71 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Tailwind CSS

Infrastructure

Hosting

proIO GmbH

Technology Stack

5 Technologies Detected

CSS Frameworks

Analytics

Tag Managers

Web Servers

Security

SEO Analysis

A80/100

Meta Tags14/15

Content9/12

Headings8/8

Technical21/25

E-E-A-T3/7

Images4/7

Links5/5

URL5/5

Social4/5

Freshness0/4

Mobile4/4

Indexability3/3

hanser-fachbuch.dehanser-fachbuch.de

Fachbücher online kaufen | Hanser Fachbuch

Fachliteratur aus den Bereichen Computer, Technik, Wirtschaft. Als gedrucktes Buch, E-Book, eLearning oder Ki-Chat. Einfacher Zugang zu Fachwissen.

Title Length42 chars

Recommended: 50-60 chars (~253px / 580px)

Description Length147 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (26/44) — critical for accessibility and SEO

4 issues found

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Crawlability

Sitemap

Type: index

1 URLs

1 sub-sitemaps

robots.txt

2 rules

Allows all crawlers

Local SEO

Local Search Readiness

18/100

Poor

5 11 2

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

D41/100

Bot Access

20/25

Machine Read.

8/25

Schema Data

0/25

Citation

13/25

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:2%

Words:1,235

Token eff.:Optimal

Depth:1/5

Structured Data

Microdata

Citation Readiness

Opening Summary55w

Descriptive Headings

Canonical URL

Open Graph3/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (11)

AI readiness recommendation preview...

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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.

86/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

20/20

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

7/15

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

2 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.

39/100

269 mg

CO₂e / view

2.1 MB

Page Weight

50%

Cleaner Than

New Visitor

307 mg

Returning (cached)

154 mg

Annual (10K/mo)

32.2 kg

Emission Segments

Data Center

60 mg

Network

65 mg

Device

144 mg

Resource Breakdown

JavaScript

220.8 KB

Images

1.7 MB

CSS

96.1 KB

HTML

64.1 KB

Other

4.7 KB

Green Hosting Not Verified

proIO GmbH

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

61%Fair

Interactive

HTTPS

No WAF

85d

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

17.05.2026

Valid Until

15.08.2026

Subject Alternative Names (5)

dozierende.hanser.dehanser-fachbuch.dehanserpublications.comwww.hanser-fachbuch.dewww.hanserpublications.com

SHA-256 Fingerprint

ED:CF:A1:71:DF:84:86:08:F4:19:B6:E5:F7:06:C3:AA:F1:8D:E7:F5...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

age

2207

cache-control

🔴 No Cache(no-cache, private)

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=UTF-8

date

Thu, 21 May 2026 11:44:24 GMT

referrer-policy

strict-origin-when-cross-origin

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (2)

mx.noris.net

mx.noris.de

Domain Information

hanser-fachbuch.de

Last Updated

23.10.2025

DNSSEC

Not Enabled

Privacy & Compliance

consentmanager

Cookie Consent Banner

consentmanager

GDPR Indicators

Cookie consent banner detected

CMP: consentmanager

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.

70/100

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, shrink-to-fit=no

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Noto Sans

WCAG Partial

72/100

Readability

/30

24/30

16px · LH 1.50

Hierarchy

/20

19/20

2.25x ratio · ✓ H1→H6

WCAG

/25

13/25

1:1 min contrast

Performance

/25

16/25

1 font · 4 req

Heading Font

Noto Sans

Sans36px

Body Font

Noto Sans

Sans16px

Contrast Ratio

1:1

9 issues

Reading Comfort

~34 CPL

Narrow lines

36px

28px

16px

✅ Excellent readability: 16px body text is ideal for all devices.

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

❌ Very complex text: Flesch score 15/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 9 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 2.2x larger than body text.

Buy on MyFontsFlesch 15

Color Palette

10 unique colors

Light

#ffffff

Primary· 70.5%

#335275

Primary· 5.8%

#116181

Accent· 4.7%

#003e65

Accent· 4.3%

#002d52

Accent· 3.2%

#497fa2

Secondary· 3%

#73aac4

Secondary· 2.5%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

15 Resources

Scripts

Styles

Async

Defer

Top Script Sources

hanser-fachbuch.de(9)cdn.consentmanager.net(3)delivery.consentmanager.net(1)d.delivery.consentmanager.net(1)

Website Identity

hanser-fachbuch.de

[email protected]

+49 89 99830-111

Location detected: 🇩🇪 Germanyvia phone

de-DE

Social Profiles

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Last analyzed: 21 May 2026 at 12:21

Historical Analysis & Change Tracking