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wienbibliothek.at

https://wienbibliothek.at· First analyzed 19 May 2026· Updated 19 May 2026
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wienbibliothek.at
Desktop screenshot of wienbibliothek.at
Mobile screenshot of wienbibliothek.at
Mobile

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Hosting Provider

KN Cloud VSS

IP Address

94.136.22.233

Site Location

🇦🇹 Austriavia phone

Server Location

🇦🇹 Vienna, Austria

ASN

AS48943

Organization

KN Cloud VSS

Server

Apache

Nameservers

ns2.wien.gv.at.ns1.wien.at.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
632 ms10%
Speed Index
822 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
8.7 MB
71 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Drupal

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

4 Technologies Detected

Libraries

1
jQuery

CSS Frameworks

1
Tailwind CSS

Analytics

1
Matomo

Web Servers

1
Apache

SEO Analysis

B70/100
22
5
1
Meta Tags10/15
Content12/12
Headings8/8
Technical15/25
E-E-A-T0/7
Images6/7
Links5/5
URL5/5
Social0/5
Freshness2/4
Mobile4/4
Indexability3/3
W
wienbibliothek.atwienbibliothek.at

Home | Wienbibliothek im Rathaus | Wienbibliothek im Rathaus

No description available for this page.

Title Length60 chars

Recommended: 50-60 chars (~359px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing meta description — important for click-through rates in SERPs

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

33 URLs

robots.txt

53 rules

Local SEO

Local Search Readiness

20/100
Needs Work
6 9 2

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AI & LLM Readiness

D46/100
Bot Access
20/25
Machine Read.
14/25
Schema Data
0/25
Citation
12/25

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
navheader/footer
Text ratio:16%
Words:1,283
Token eff.:Optimal
Sections/1K:16.4
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary75w
Descriptive Headingsavg 4.1w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (7)
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
81/100
13
Passed
1
Critical
1
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
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
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.
33/100
F
1.10 g
CO₂e / view
8.7 MB
Page Weight
5%
Cleaner Than
New Visitor
1.26 g
vs
Returning (cached)
631 mg
Annual (10K/mo)
132.4 kg
Emission Segments
Data Center
247 mg
Network
265 mg
Device
592 mg
Resource Breakdown
JavaScript
51.6 KB
Images
8.4 MB
CSS
207.0 KB
HTML
12.2 KB
Green Hosting Not Verified
KN Cloud VSS
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
D

Security Score

56%Poor
Interactive

HTTPS

No WAF

92d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Hellenic Academic and Research Institutions CA

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

19.08.2025

Valid Until

19.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (4)

wienbibliothek.atwww.wienbibliothek.atstadtbibliothek.wien.atwww.stadtbibliothek.wien.at

SHA-256 Fingerprint

9D:E3:22:96:57:F0:CF:F9:51:48:B7:17:4E:C9:B2:2A:1B:04:AD:5D...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🟡 300s(max-age=300, public)
content-encoding
📦 Gzip(gzip)
content-language
de
content-length
12229
content-type
text/html; charset=UTF-8
date
Tue, 19 May 2026 06:44:33 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

45

SPF
DKIM
DMARC

MX Records (2)

mx02.wien.gv.at
mx01.wien.gv.at

Domain Information

wienbibliothek.at

Registrar

Ledl.net GmbH & Co. KG ( https://nic.at/registrar/407 )

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

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
67/100
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...
Upgrade to view recommendations

Typography & Readability

Case

WCAG Partial
69/100
Readability
/30
21/30

15px · LH 1.53

Hierarchy
/20
12/20

2.47x ratio

WCAG
/25
16/25

1.24:1 min contrast

Performance
/25
20/25

1 font · 3 req

Heading Font

Case

Sans38px

Body Font

Case

Sans15px

Contrast Ratio

1.24:1

2 issues

Reading Comfort

~40 CPL

Narrow lines
38px
h1
36px
h2
24px
h3
15px
p

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.53 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 33/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 1.2:1).

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

✅ Strong hierarchy: Headlines are 2.5x larger than body text.

Buy on MyFontsFlesch 33

Color Palette

13 unique colors
3.33:1 AA Large Light
#ffffff
Background· 32.6%
#8b8f79
Secondary· 8.2%
#c8e9ca
Primary· 10.6%
#3c2f1a
Secondary· 8.6%
#231a0b
Accent· 8.3%
#ca8457
Accent· 5.9%
#654027
Secondary· 5.9%
#6d6649
Secondary· 4.9%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Matomo (Piwik)Mid-Market
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

21 Resources

11
Scripts
10
Styles
1
Async
1
Defer

Top Script Sources

local(10)matomo.wienbibliothek.vss.kapper.net(1)

Website Identity

wienbibliothek.at

post@wienbibliothek.at
+431400084920
Location detected: 🇦🇹 Austriavia phone
Ledl.net GmbH & Co. KG ( https://nic.at/registrar/407 )de

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Last analyzed: 19 May 2026 at 07:29

Historical Analysis & Change Tracking