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lob.de

https://lob.de· First analyzed 28 May 2026· Updated 28 May 2026
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lob.de
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Mobile

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Hosting Provider

Versatel Deutschland

IP Address

217.9.63.90

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Berlin, Germany

ASN

AS8881

Organization

Versatel Deutschland

Server

asc/1.0.1p7

Nameservers

dns2.lehmanns.de.dns.lehmanns.de.ns1.de.colt.net.dns1.lehmanns.de.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
625 ms10%
Speed Index
812 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
4.9 MB
250 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Versatel Deutschland

Technology Stack

4 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

SEO Analysis

B73/100
21
6
1
Meta Tags9/15
Content11/12
Headings8/8
Technical19/25
E-E-A-T5/7
Images5/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile3/4
Indexability3/3
L
lob.delob.de

Lehmanns.de: Fachbücher und eBooks versandkostenfrei bestellen - Le...

Bücher versandkostenfrei und ohne Mindestbestellwert kaufen. Fachliteratur schnell auf Rechnung geliefert. Fachbuchhandlung Lehmanns, online seit 1993

Title truncated.
Title Length76 chars

Recommended: 50-60 chars (~463px / 580px)

Description Length150 chars

Recommended: 120-160 chars

Issues (1)

  • • Title is too long (76 chars, ~463px). Will be truncated in search results.

7 issues found

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Crawlability

Sitemap
robots.txt

540 rules

Sitemap reference found

Local SEO

Local Search Readiness

16/100
Poor
4 14

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

D45/100
Bot Access
17/25
Machine Read.
11/25
Schema Data
7/25
Citation
10/25

AI Bot Access

11/14 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:6%
Words:2,205
Token eff.:Optimal
Sections/1K:2.3
Depth:1/5

Structured Data

2 JSON-LD
Organization×1.1WebSiteSearchAction
sameAs entity links

Citation Readiness

Opening Summary37w
Descriptive Headingsavg 5.3w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (8)
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.
B
70/100
11
Passed
5
Critical
3
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
7/15
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.
3 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.
13/100
F
621 mg
CO₂e / view
4.9 MB
Page Weight
15%
Cleaner Than
New Visitor
709 mg
vs
Returning (cached)
355 mg
Annual (10K/mo)
74.5 kg
Emission Segments
Data Center
139 mg
Network
149 mg
Device
333 mg
Resource Breakdown
JavaScript
257.2 KB
Images
2.9 MB
CSS
1.0 MB
HTML
22.7 KB
Other
735.8 KB
Green Hosting Not Verified
Versatel Deutschland
7 recommendations
  • •Carbon footprint recommendation preview...
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B

Security Score

76%Good
Interactive

HTTPS

No WAF

258d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

10.02.2026

Valid Until

10.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.lehmanns.delehmanns.de

SHA-256 Fingerprint

9D:91:CC:B9:6E:38:F9:1A:2B:7E:AF:1D:52:0E:02:EE:4D:0E:7A:66...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🔴 No Cache(no-store, no-cache, must-revalidate)
content-encoding
📦 Gzip(gzip)
content-language
de
content-length
22953
content-security-policy
frame-ancestors 'self' lob.de *.lehmanns.de *.lehmanns.ch le...
content-type
text/html; charset=utf-8
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

45

SPF
DKIM
DMARC

MX Records (2)

mx1.lehmanns.de
m2.lehmanns.de

Domain Information

lob.de

Last Updated

26.10.2011

DNSSEC
Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner
Cookiebot
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Cookiebot
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.
B
71/100
Mobile Friendly1 breakpoint
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
2 recommendations
  • •Mobile compatibility recommendation preview...
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Typography & Readability

Antic

WCAG Partial
53/100
Readability
/30
24/30

16px · LH 1.43

Hierarchy
/20
8/20

1.25x ratio

WCAG
/25
14/25

1:1 min contrast

Performance
/25
7/25

System fonts

Heading Font

Antic

Sans20px

Body Font

Antic

Sans16px

Contrast Ratio

1:1

8 issues

Reading Comfort

~40 CPL

Narrow lines
20px
h1
40px
h2
44px
h3
16px
p
Perfect Fifth
Scale

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

✅ Optimal line spacing: 1.43 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 19/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 8 elements below WCAG AA threshold (min 1.0:1).

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

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

Buy on MyFontsFlesch 19

Color Palette

8 unique colors
Light
#ffffff
Background· 45%
#f8b909
Primary· 25.6%
#006c69
Primary· 13.8%
#e4e1ba
Secondary· 4.4%
#2f8682
Secondary· 3.9%
#d69f27
Accent· 3.7%
#e9ba28
Accent· 3.2%
#2e6354
Secondary· 0.6%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

11 Resources

6
Scripts
5
Styles
2
Async
0
Defer

Top Script Sources

lehmanns.de(3)local(2)googletagmanager.com(1)

Website Identity

Lehmanns Media GmbH

Lehmanns Media GmbH

Organization
www.lehmanns.de
Location detected: 🇩🇪 Germanyvia tld
de

Social Profiles

Facebook

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Last analyzed: 28 May 2026 at 18:17

Historical Analysis & Change Tracking

lob.de Technology Stack - Built With Tailwind CSS, Google Fonts, Google Analytics, Google Analytics 4 | StackOptic | StackOptic