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ijb.de

https://ijb.de· First analyzed 24 May 2026· Updated 24 May 2026
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ijb.de
Desktop screenshot of ijb.de
Mobile screenshot of ijb.de
Mobile

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Hosting Provider

Mittwald CM Service GmbH und Co.

IP Address

178.16.57.141

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Espelkamp, Germany

ASN

AS15817

Organization

Mittwald CM Service GmbH und Co.

Server

Apache

Nameservers

dns1.dpn.de.dns2.dpn.de.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
447 ms10%
Speed Index
581 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
6.1 MB
25 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
TYPO3

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

4 Technologies Detected

Libraries

1
jQuery

CSS Frameworks

1
Tailwind CSS

Analytics

1
Matomo

Web Servers

1
Apache

SEO Analysis

C67/100
20
4
1
Meta Tags13/15
Content11/12
Headings3/8
Technical20/25
E-E-A-T0/7
Images0/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
I
ijb.deijb.de

Internationale Jugendbibliothek - Internationale Jugendbibliothek

Die Internationale Jugendbibliothek ist weltweit die größte Bibliothek für internationale Kinder- und Jugendliteratur.

Title Length65 chars

Recommended: 50-60 chars (~376px / 580px)

Description Length118 chars

Recommended: 120-160 chars

Issues (1)

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

5 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

3 URLs

3 sub-sitemaps

robots.txt

2 rules

Allows all crawlers

Local SEO

Local Search Readiness

10/100
Poor
3 13 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

D44/100
Bot Access
20/25
Machine Read.
8/25
Schema Data
0/25
Citation
16/25

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
header/footer
Text ratio:7%
Words:620
Token eff.:Optimal
Sections/1K:12.9
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary139w
Descriptive Headingsavg 5.5w
Canonical URL
Open Graph3/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
AI readiness recommendation preview...
Upgrade to view recommendations

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.
C
64/100
8
Passed
4
Critical
1
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
5/15
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
4/15
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.
35/100
F
629 mg
CO₂e / view
6.1 MB
Page Weight
5%
Cleaner Than
New Visitor
719 mg
vs
Returning (cached)
359 mg
Annual (10K/mo)
75.4 kg
Emission Segments
Data Center
31 mg
Network
185 mg
Device
413 mg
Resource Breakdown
JavaScript
121.6 KB
Images
1.3 KB
CSS
5.9 MB
HTML
14.7 KB
Green Hosting Verified
Mittwald CM Service GmbH & Co. KG
GWF Verified
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

31%Critical
Interactive

HTTPS

No WAF

77d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

11.05.2026

Valid Until

09.08.2026

Subject Alternative Names (1)

www.ijb.de

SHA-256 Fingerprint

C5:26:DE:4B:F6:40:1E:3A:B4:F3:13:C4:40:96:DD:54:D2:A0:FC:66...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🟡 0s(max-age=0)
content-encoding
📦 Gzip(gzip)
content-language
de-DE
content-length
14767
content-type
text/html; charset=utf-8
date
Sun, 24 May 2026 01:43:31 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

50

SPF
DKIM
DMARC

MX Records (3)

avas.vianetworks.de
mxsink.vianetworks.de
mx2.vianetworks.de

Domain Information

ijb.de

Last Updated

05.07.2013

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
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
74/100
Mobile Friendly3 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
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Droid Serif W01 + Arial

WCAG Partial
66/100
Readability
/30
24/30

17px · LH 1.40

Hierarchy
/20
8/20
WCAG
/25
13/25

2.05:1 min contrast

Performance
/25
21/25

System fonts

Heading Font

Droid Serif W01

Serif

Body Font

Arial

Sans17px

Contrast Ratio

2.05:1

45 issues

Reading Comfort

~37 CPL

Narrow lines
18px
h2
22px
h4
17px
p
Major Third
Scale

✅ Excellent readability: 17px body text is ideal for all devices.

✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

⚠️ Partial contrast: 45 elements below WCAG AA threshold (min 2.0:1).

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

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

✅ System fonts: Zero font loading delay — best possible LCP impact.

Buy on MyFonts

Color Palette

8 unique colors
2.49:1 Fail Light
#ffffff
Primary· 56.50000000000001%
#9ba7a2
Other· 4.9%
#e6e3dc
Secondary· 11.7%
#957762
Secondary· 6.8%
#d0a77b
Secondary· 6.3%
#3f2721
Secondary· 4.6%

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

9 Resources

4
Scripts
5
Styles
1
Async
2
Defer

Top Script Sources

local(4)

Website Identity

ijb.de

Location detected: 🇩🇪 Germanyvia tld
de

Social Profiles

FacebookInstagram

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Last analyzed: 24 May 2026 at 01:43

Historical Analysis & Change Tracking