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burgtheater.at

https://burgtheater.at· First analyzed 04 May 2026· Updated 04 May 2026
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burgtheater.at
Desktop screenshot of burgtheater.at
Mobile screenshot of burgtheater.at
Mobile

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Hosting Provider

Ipax Virtualline11

IP Address

185.119.117.8

Site Location

🇦🇹 Austriavia phone

Server Location

🇦🇹 Vienna, Austria

ASN

AS44133

Organization

Ipax Virtualline11

Server

Apache

Nameservers

ns2.theaterservice.at.ns3.theaterservice.at.ns1.theaterservice.at.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
640 ms10%
Speed Index
832 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
24.3 MB
22 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Drupal

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

5 Technologies Detected

CSS Frameworks

2
Tailwind CSS
Bootstrap

Libraries

1
jQuery

Analytics

1
Matomo

Web Servers

1
Apache

SEO Analysis

D56/100
18
8
3
Meta Tags4/15
Content8/12
Headings3/8
Technical19/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social1/5
Freshness2/4
Mobile4/4
Indexability3/3
B
burgtheater.atburgtheater.at

Startseite | Burgtheater

No description available for this page.

Title Length24 chars

Recommended: 50-60 chars (~144px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

  • • Missing meta description — important for click-through rates in SERPs
  • • Missing H1 tag — every page should have exactly one H1
  • • Most images missing alt text (32/37) — critical for accessibility and SEO

11 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

4 URLs

4 sub-sitemaps

robots.txt

41 rules

Local SEO

Local Search Readiness

19/100
Poor
5 10 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

F38/100
Bot Access
20/25
Machine Read.
8/25
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
nav
Text ratio:2%
Words:541
Token eff.:Optimal
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary
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 (11)
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
84/100
14
Passed
2
Critical
1
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
13/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
8/15
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.
35/100
F
3.07 g
CO₂e / view
24.3 MB
Page Weight
5%
Cleaner Than
New Visitor
3.51 g
vs
Returning (cached)
1.76 g
Annual (10K/mo)
368.6 kg
Emission Segments
Data Center
686 mg
Network
737 mg
Device
1.65 g
Resource Breakdown
JavaScript
184.0 KB
Images
106.3 KB
CSS
169.5 KB
HTML
43.7 KB
Other
23.8 MB
Green Hosting Not Verified
Ipax Virtualline11
4 recommendations
  • •Carbon footprint recommendation preview...
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A

Security Score

81%Very Good
Interactive

HTTPS

No WAF

188d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

24.04.2026

Valid Until

08.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.burgtheater.atburgtheater.at

SHA-256 Fingerprint

05:60:B6:79:C9:24:26:FC:AC:B7:27:0B:E1:2F:49:0D:5F:C6:E5:06...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🔴 No Cache(must-revalidate, no-cache, private, no-store, max-age=0, s-m...)
content-encoding
📦 Gzip(gzip)
content-language
de
content-length
44440
content-security-policy
upgrade-insecure-requests
content-type
text/html; charset=UTF-8
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

95

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

burgtheater-at.mail.protection.outlook.com

Domain Information

burgtheater.at

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.
B
72/100
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
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Avantt-Bold + Avantt-SemiBold

WCAG AAA
64/100
Readability
/30
17/30

30px · LH 1.20

Hierarchy
/20
7/20
WCAG
/25
25/25

9.54:1 min contrast

Performance
/25
15/25

2 fonts · 2 req

Heading Font

Avantt-Bold

Sans

Body Font

Avantt-SemiBold

Sans30px

Contrast Ratio

9.54:1

WCAG AAA (≥7:1)

Reading Comfort

Dual Sans-Serif

left aligned
60px
h2
30px
p

✅ Excellent readability: 30px body text is ideal for all devices.

⚠️ Tight line spacing (1.20). Increase to 1.4–1.6 for better readability.

❌ Very complex text: Flesch score 21/100. Consider shorter sentences and simpler words.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 9.5:1).

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

✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

Buy on MyFontsFluid Type (rem)Flesch 21

Color Palette

12 unique colors
Light
#ffffff
Primary· 11.9%
#e1d2cb
Secondary· 19.000000000000004%
#d1ebd6
Secondary· 16.299999999999997%
#f2c4c2
Primary· 15.2%
#b17c56
Secondary· 10.2%
#f4b3b1
Primary· 7.5%
#a58f66
Secondary· 6.2%
#52443b
Secondary· 4.3%

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

8 Resources

5
Scripts
3
Styles
2
Async
0
Defer

Top Script Sources

static.clickskeks.at(2)local(2)burgtheater.at(1)

Website Identity

burgtheater.at

info@burgtheater.at
+431514444140
Location detected: 🇦🇹 Austriavia phone
📧 Microsoft 365de

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Last analyzed: 04 May 2026 at 15:13

Historical Analysis & Change Tracking