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vr-elibrary.de

https://vr-elibrary.de· First analyzed 09 May 2026· Updated 09 May 2026
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vr-elibrary.de
Desktop screenshot of vr-elibrary.de
Mobile screenshot of vr-elibrary.de
Mobile

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Hosting Provider

Cloudflare
cloudflare.com

IP Address

104.18.35.248

Site Location

🇩🇪 Germanyvia phone

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

jake.ns.cloudflare.com.rosa.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
343 ms10%
Speed Index
446 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
18 KB
26 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Cloudflare
CDN
Cloudflare

Technology Stack

2 Technologies Detected

CSS Frameworks

1
Tailwind CSS

CDN

1
Cloudflare

SEO Analysis

C69/100
19
8
1
Meta Tags9/15
Content11/12
Headings3/8
Technical20/25
E-E-A-T3/7
Images2/7
Links5/5
URL5/5
Social2/5
Freshness2/4
Mobile4/4
Indexability3/3
V
vr-elibrary.devr-elibrary.de

V&R eLibrary

Willkommen in der elibrary der Vandenhoeck & Ruprecht Verlage. Der Wissenschafts- und Schulbuchverlag mit Standorten in Göttingen, Wien, Köln und Weimar.

Title Length12 chars

Recommended: 50-60 chars (~72px / 580px)

Description Length153 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing H1 tag — every page should have exactly one H1

9 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

33 rules

Sitemap reference found

Local SEO

Local Search Readiness

22/100
Needs Work
7 9 2

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AI & LLM Readiness

D43/100
Bot Access
19/25
Machine Read.
10/25
Schema Data
3/25
Citation
11/25

AI Bot Access

13/14 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
navheader/footer
Text ratio:8%
Words:730
Token eff.:Optimal
Sections/1K:21.9
Depth:2/5

Structured Data

1 JSON-LD
WebSiteSearchAction

Citation Readiness

Opening Summary13w
Descriptive Headingsavg 2.1w
Canonical URL
Open Graph1/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
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.
A
83/100
12
Passed
3
Critical
0
Warnings
Images & Alt Text
20/20
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
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
11/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
9/15
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.
79/100
A+
2 mg
CO₂e / view
17.6 KB
Page Weight
95%
Cleaner Than
New Visitor
2 mg
vs
Returning (cached)
1 mg
Annual (10K/mo)
216 g
Emission Segments
Data Center
<0.001 g
Network
<0.001 g
Device
1 mg
Resource Breakdown
JavaScript
3.1 KB
HTML
14.5 KB
Green Hosting Verified
Cloudflare
GWF Verified
2 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

25%Critical
Critical / Transactional

HTTPS

WAF

67d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

16.04.2026

Valid Until

15.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.vr-elibrary.de

SHA-256 Fingerprint

2E:14:BA:83:D9:B2:30:4D:F8:5D:EE:EE:74:27:4E:59:72:95:3A:AC...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🔴 No Cache(no-cache)
cf-cache-status
DYNAMIC
cf-ray🇩🇪 Frankfurt
9f8d7d7b3bafd2d3-FRA
content-encoding
⚡ Brotli(br)
content-type
text/html;charset=UTF-8
date
Sat, 09 May 2026 03:06:47 GMT
Good Warning Issue

Email Infrastructure

Rackspace Email

Score

45

SPF
DKIM
DMARC

MX Records (1)

mx1.emailsrvr.com

Domain Information

vr-elibrary.de

Last Updated

27.11.2020

DNSSEC
Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner
OneTrust
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: OneTrust
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
63/100
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
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Times New Roman

WCAG AAA
65/100
Readability
/30
22/30

16px · LH --

Hierarchy
/20
8/20
WCAG
/25
21/25

9.4:1 min contrast

Performance
/25
14/25

1 font

Heading Font

Times New Roman

Serif

Body Font

Times New Roman

Serif16px

Contrast Ratio

9.4:1

WCAG AAA (≥7:1)

Reading Comfort

~41 CPL

Narrow lines
24px
h2
19px
h3
16px
h4
16px
p

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

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 9.4:1).

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

✅ Lean font stack: 1 font families keeps load times fast.

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFonts

Color Palette

8 unique colors
5.25:1 AA Light
#ffffff
Background· 94.69999999999999%
#6c6b76
Other· 0.7%
#9c9fae
Primary· 0.9%

Business & Marketing Stack

2 Tools Detected

Advanced

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

1
OneTrustEnterprise

Cookie consent and privacy compliance tools

2

Categories

2

Total Tools

1

Enterprise

0

Mid-Market

Assessment: Well-developed marketing technology stack

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Scripts & Styles

11 Resources

6
Scripts
5
Styles
0
Async
2
Defer

Top Script Sources

local(4)cdn.cookielaw.org(1)static.cloudflareinsights.com(1)

Website Identity

vr-elibrary.de

elibrary@degruyterbrill.com
+495515084355
Location detected: 🇩🇪 Germanyvia phone
📧 Rackspace Emailen

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Last analyzed: 09 May 2026 at 03:07

Historical Analysis & Change Tracking