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nationaltheater-mannheim.de

https://nationaltheater-mannheim.de· First analyzed 18 May 2026· Updated 18 May 2026
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nationaltheater-mannheim.de
Desktop screenshot of nationaltheater-mannheim.de
Mobile screenshot of nationaltheater-mannheim.de
Mobile

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Hosting Provider

integration.net GmbH

IP Address

185.158.13.214

Site Location

🇩🇪 Germanyvia phone

Server Location

🇩🇪 Gemmrigheim, Germany

ASN

AS61183

Organization

integration.net GmbH

Server

Apache

Nameservers

pdns13.domaincontrol.com.pdns14.domaincontrol.com.

Performance

82

Core Web Vitals

Weight

First Contentful Paint
2.0 s10%
Speed Index
2.6 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
10.4 MB
67 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
integration.net GmbH

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

3 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Web Servers

1
Apache

Frameworks

1
ASP.NET

SEO Analysis

C63/100
16
9
1
Meta Tags8/15
Content10/12
Headings8/8
Technical16/21
E-E-A-T3/7
Images1/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
N
nationaltheater-mannheim.denationaltheater-mannheim.de

Startseite | Nationaltheater Mannheim

Nationaltheater Mannheim

Title Length37 chars

Recommended: 50-60 chars (~224px / 580px)

Description Length24 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (97/111) — critical for accessibility and SEO

10 issues found

Upgrade to view details

Local SEO

Local Search Readiness

18/100
Poor
5 10 2

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

Sponsored

AI & LLM Readiness

D41/100
Bot Access
20/25
Machine Read.
11/25
Schema Data
2/25
Citation
8/25

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:4%
Words:3,326
Token eff.:Good
Sections/1K:4.5
Depth:1/5

Structured Data

Microdata
Eventmicrodata
sameAs entity links

Citation Readiness

Opening Summary
Descriptive Headingsavg 2.7w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (9)
AI readiness recommendation preview...
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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.
A
80/100
13
Passed
1
Critical
2
Warnings
Images & Alt Text
18/20
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
13/15
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.
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.
7/100
F
1.31 g
CO₂e / view
10.4 MB
Page Weight
5%
Cleaner Than
New Visitor
1.50 g
vs
Returning (cached)
749 mg
Annual (10K/mo)
157.3 kg
Emission Segments
Data Center
293 mg
Network
315 mg
Device
703 mg
Resource Breakdown
JavaScript
1.0 MB
Images
7.5 MB
CSS
315.0 KB
HTML
486.4 KB
Other
1.0 MB
Green Hosting Not Verified
integration.net GmbH
9 recommendations
  • •Carbon footprint recommendation preview...
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D

Security Score

46%Poor
Interactive

HTTPS

No WAF

276d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

19.02.2026

Valid Until

18.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.nationaltheater-mannheim.denationaltheater-mannheim.de

SHA-256 Fingerprint

A2:DA:13:5B:B6:DC:7F:ED:8E:4C:D1:97:4C:5B:64:37:AB:C3:BF:6E...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🟣 Private(private)
connection
Keep-Alive
content-length
497800
content-type
text/html; charset=utf-8
date
Mon, 18 May 2026 03:53:49 GMT
keep-alive
timeout=15, max=100
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

50

SPF
DKIM
DMARC

MX Records (2)

mx01.ionos.de
mx00.ionos.de

Domain Information

nationaltheater-mannheim.de

Last Updated

23.12.2025

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.
D
51/100
Mobile Friendly
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, minimum-scale=1.0, maximum-scale=1.0, user-scalable=0
6 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Raptor

WCAG Partial
72/100
Readability
/30
22/30

30px · LH 1.33

Hierarchy
/20
20/20

2.97x ratio · ✓ H1→H6

WCAG
/25
15/25

1:1 min contrast

Performance
/25
15/25

1 font · 3 req

Heading Font

Raptor

Sans89px

Body Font

Raptor

Sans30px

Contrast Ratio

1:1

2 issues

Reading Comfort

Single Font Family

left aligned
89px
h1
50px
h2
90px
h3
Minor Third
Scale

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

⚠️ Tight line spacing (1.33). Increase to 1.4–1.6 for better readability.

❌ Very complex text: Flesch score 3/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 1.0:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ Strong hierarchy: Headlines are 3.0x larger than body text.

Buy on MyFontsFlesch 3

Color Palette

11 unique colors
Light
#ffffff
Background· 52.6%
#ff9600
Accent· 13.399999999999999%
#3829be
Primary· 11.6%
#dfd3d7
Secondary· 7.2%
#3d6e49
Secondary· 5.3%
#86bebb
Secondary· 4.4%
#6a2652
Secondary· 2.5%
#fbbb5d
Accent· 1.1%

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

6 Resources

5
Scripts
1
Styles
2
Async
0
Defer

Top Script Sources

local(2)code.etracker.com(2)etracker.de(1)

Website Identity

nationaltheater-mannheim.de

+49621 1680 150
Location detected: 🇩🇪 Germanyvia phone
de

Sponsored

Last analyzed: 18 May 2026 at 03:54

Historical Analysis & Change Tracking