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oreilly.de

https://oreilly.de· First analyzed 05 May 2026· Updated 05 May 2026
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oreilly.de
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Hosting Provider

eCommerce Hosting

IP Address

109.71.73.205

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS47447

Organization

eCommerce Hosting

Server

Nginx

Nameservers

ns1.nanocomp.com.ns2.nanocomp.com.ns3.nanocomp.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
534 ms10%
Speed Index
694 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
6.2 MB
81 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.8.5
cms
WordPress Theme Atomionv1.3.20Custom
by marketpress.com
View Theme

Technology Stack

13 Technologies Detected

Plugins

6
Woocommerce German Market
GutensliderBlock Options
WooCommerce
Wp Carousel Pro
Yoast SEO

Libraries

2
jQueryv3.7.1
Animate.css

UI Components

2
SwiperFancybox

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Web Servers

1
Nginxv1.28.3

SEO Analysis

C63/100
19
11
2
Meta Tags9/15
Content8/12
Headings6/8
Technical19/25
E-E-A-T0/7
Images3/7
Links2/5
URL5/5
Social4/5
Freshness4/4
Mobile3/4
Indexability0/3
O
oreilly.deoreilly.de

Startseite • O'Reilly

O'Reilly-Bücher vermitteln Ihnen praxisorientiertes Know-how zu zukunftsweisenden Technologien und Methoden aus IT, Marketing und Business.

Title Length21 chars

Recommended: 50-60 chars (~122px / 580px)

Description Length139 chars

Recommended: 120-160 chars

Issues (2)

  • • Most images missing alt text (33/34) — critical for accessibility and SEO
  • • Page is set to noindex — will not appear in search results

13 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

5 URLs

5 sub-sitemaps

robots.txt

9 rules

Sitemap reference found

Allows all crawlers

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.

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AI & LLM Readiness

D46/100
Bot Access
20/25
Machine Read.
11/25
Schema Data
4/25
Citation
11/25

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:360
Token eff.:Optimal
Sections/1K:22.2
Depth:1/5

Structured Data

4 JSON-LD
WebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary313w
Descriptive Headingsavg 3.6w
Canonical URL
Open Graph3/3
Twitter Card1/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
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
69/100
13
Passed
3
Critical
4
Warnings
Images & Alt Text
10/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
15/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
8/15
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
15/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
6/15
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.
39/100
F
638 mg
CO₂e / view
6.2 MB
Page Weight
5%
Cleaner Than
New Visitor
729 mg
vs
Returning (cached)
364 mg
Annual (10K/mo)
76.5 kg
Emission Segments
Data Center
31 mg
Network
187 mg
Device
419 mg
Resource Breakdown
JavaScript
107.2 KB
Images
5.6 MB
CSS
443.3 KB
HTML
19.5 KB
Other
532 B
Green Hosting Verified
23M GmbH
GWF Verified
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

0%Critical
Critical / Transactional

HTTPS

No WAF

41d

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

17.03.2026

Valid Until

15.06.2026

Subject Alternative Names (4)

oreilly.atoreilly.dewww.oreilly.atwww.oreilly.de

SHA-256 Fingerprint

F3:CD:A5:3C:31:E4:81:7F:5B:EA:59:C5:31:D5:4F:A5:0C:BA:B5:AB...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

content-encoding
⚡ Brotli(br)
content-length
19675
content-type
text/html; charset=UTF-8
date
Tue, 05 May 2026 01:36:35 GMT
link
<https://oreilly.de/wp-json/>; rel="https://api.w.org/", <ht...
server
nginx/1.28.3
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

70

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (3)

mx3.heinlein-support.de
mx2.heinlein-support.de
mx1.heinlein-support.de

Domain Information

oreilly.de

Last Updated

14.04.2026

DNSSEC
Not Enabled

Privacy & Compliance

Borlabs Cookie

Cookie Consent Banner
Borlabs Cookie
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Borlabs Cookie
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.
B
76/100
Mobile Friendly14 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
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Poppins + SourceSansPro

WCAG Partial
67/100
Readability
/30
23/30

20px · LH 1.50

Hierarchy
/20
11/20

1.4x ratio

WCAG
/25
15/25

4.02:1 min contrast

Performance
/25
18/25

2 fonts · 6 req

Heading Font

Poppins

Sans28px

Body Font

SourceSansPro

Sans20px

Contrast Ratio

4.02:1

5 issues

Reading Comfort

~38 CPL

Narrow lines
28px
h1
24px
h2
64px
h3
18px
h4
20px
p
Major Third
Scale

✅ Excellent readability: 20px body text is ideal for all devices.

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

❌ Very complex text: Flesch score 8/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 5 elements below WCAG AA threshold (min 4.0:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

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

Buy on MyFontsFluid Type (rem)Flesch 8

Color Palette

12 unique colors
Light
#ffffff
Background· 50.4%
#3a4325
Primary· 6.9%
#212f19
Secondary· 6.3%
#0d1409
Secondary· 6.1%
#70734b
Secondary· 4.7%
#615c3a
Secondary· 4.4%
#967867
Secondary· 4%
#dbd2d3
Secondary· 4%

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

30 Resources

20
Scripts
10
Styles
1
Async
5
Defer

Top Script Sources

oreilly.de(18)youtube.com(2)

Website Identity

Startseite • O'Reilly

O'Reilly-Bücher vermitteln Ihnen praxisorientiertes Know-how zu zukunftsweisenden Technologien und Methoden aus IT, Marketing und Business.

oreilly.de/
Location detected: 🇩🇪 Germanyvia tld
de

Social Profiles

FacebookInstagram

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Last analyzed: 05 May 2026 at 01:36

Historical Analysis & Change Tracking