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brucknerhaus.at

https://brucknerhaus.at· First analyzed 16 May 2026· Updated 16 May 2026
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brucknerhaus.at
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Hosting Provider

interneX GmbH

IP Address

5.132.161.124

Site Location

🇦🇹 Austriavia phone

Server Location

🇦🇹 Gmünd, Austria

ASN

AS44453

Server

Apache

Nameservers

ns2.domaintechnik.at.ns1.domaintechnik.at.ns4.domaintechnik.at.ns3.domaintechnik.at.

Performance

100

Core Web Vitals

Weight

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

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
Infrastructure
Hosting
interneX GmbH

Technology Stack

10 Technologies Detected

CSS Frameworks

2
Bootstrapv4.0.0
Tailwind CSS

Icon Libraries

2
Font AwesomeIonicons

Analytics

2
Google Analytics
Matomo

Libraries

1
jQueryv3.2.1

UI Components

1
Slick Carousel

Tag Managers

1
Google Tag Manager

Web Servers

1
Apache

SEO Analysis

C64/100
18
6
2
Meta Tags15/15
Content10/12
Headings0/8
Technical16/25
E-E-A-T3/7
Images1/7
Links5/5
URL5/5
Social2/5
Freshness0/4
Mobile4/4
Indexability3/3
B
brucknerhaus.atbrucknerhaus.at

Das Brucknerhaus Linz – Konzerthaus in Oberösterreich

Das Brucknerhaus Linz präsentiert erstklassige Konzertveranstaltungen in den Bereichen Klassik, Jazz, Orchester- und Weltmusik.

Title Length53 chars

Recommended: 50-60 chars (~324px / 580px)

Description Length127 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing H1 tag — every page should have exactly one H1
  • • Most images missing alt text (20/20) — critical for accessibility and SEO

8 issues found

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Crawlability

Sitemap

Type: standard

33 URLs

robots.txt

4 rules

Sitemap reference found

Local SEO

Local Search Readiness

13/100
Poor
4 11 2

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

D40/100
Bot Access
20/25
Machine Read.
10/25
Schema Data
0/25
Citation
10/25

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:4%
Words:384
Token eff.:Optimal
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary18w
Descriptive Headings
Canonical URL
Open Graph2/3
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.
C
62/100
8
Passed
4
Critical
2
Warnings
Images & Alt Text
15/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
9/20
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
4/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
6 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.
17/100
E
348 mg
CO₂e / view
2.7 MB
Page Weight
30%
Cleaner Than
New Visitor
398 mg
vs
Returning (cached)
199 mg
Annual (10K/mo)
41.7 kg
Emission Segments
Data Center
78 mg
Network
84 mg
Device
187 mg
Resource Breakdown
JavaScript
287.3 KB
Images
2.3 MB
CSS
173.8 KB
HTML
9.3 KB
Green Hosting Not Verified
interneX GmbH
7 recommendations
  • •Carbon footprint recommendation preview...
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D

Security Score

46%Poor
Interactive

HTTPS

No WAF

23d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

10.03.2026

Valid Until

08.06.2026

Subject Alternative Names (2)

brucknerhaus.atwww.brucknerhaus.at

SHA-256 Fingerprint

63:04:6B:8E:83:E7:74:C0:19:B7:FC:4C:95:DE:40:8D:1C:88:7E:62...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

age
23554
cache-control
🔴 No Cache(must-revalidate, no-cache, private)
content-encoding
📦 Gzip(gzip)
content-length
9217
content-type
text/html; charset=UTF-8
date
Sat, 16 May 2026 04:40:46 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

45

SPF
DKIM
DMARC

MX Records (1)

mailx.brucknerhaus.at

Domain Information

brucknerhaus.at

Registrar

Ledl.net GmbH & Co. KG ( https://nic.at/registrar/32 )

DNSSEC
Not Enabled

Privacy & Compliance

consentmanager

Cookie Consent Banner
consentmanager
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: consentmanager
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
60/100
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, minimum-scale=1
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Open Sans

WCAG Partial
55/100
Readability
/30
21/30

16px · LH 1.56

Hierarchy
/20
10/20
WCAG
/25
10/25

1:1 min contrast

Performance
/25
14/25

1 font · 11 req

Heading Font

Open Sans

Body Font

Open Sans

Sans16px

Contrast Ratio

1:1

4 issues

Reading Comfort

~39 CPL

Narrow lines
16px
p

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

✅ Optimal line spacing: 1.56 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 37/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 4 elements below WCAG AA threshold (min 1.0:1).

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

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

Buy on MyFontsFlesch 37

Color Palette

5 unique colors
Light
#e7e7e7
Other· 73.49999999999999%
#c7d3c2
Primary· 2.3%
#6c5654
Secondary· 2%

Business & Marketing Stack

3 Tools Detected

Growing

Behavior Analytics

3
Google Tag ManagerFree
Matomo (Piwik)Mid-Market
Google AnalyticsFree

User behavior and product analytics

1

Categories

3

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

30 Resources

20
Scripts
10
Styles
7
Async
12
Defer

Top Script Sources

cdnjs.cloudflare.com(6)cdn.consentmanager.net(3)googletagmanager.com(2)cdn.matomo.cloud(1)rup-digital.matomo.cloud(1)

Website Identity

brucknerhaus.at

[email protected]
+4373276120
Location detected: 🇦🇹 Austriavia phone
Ledl.net GmbH & Co. KG ( https://nic.at/registrar/32 )

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Last analyzed: 16 May 2026 at 04:41

Historical Analysis & Change Tracking