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operone.de

https://operone.de· First analyzed 30 May 2026· Updated 30 May 2026
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operone.de
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Hosting Provider

Hetzner
hetzner.com

IP Address

88.99.143.13

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Falkenstein, Germany

ASN

AS24940

Organization

Hetzner

Server

Nginx

Nameservers

pdns02.domaincontrol.com.pdns01.domaincontrol.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
357 ms10%
Speed Index
464 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
470 KB
8 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv7.0
cms
Mercuryv3.9.11.1
by MercuryTheme.com
View Theme

Technology Stack

16 Technologies Detected

Plugins

6
Webp Express
WP Rocket
OperoneWp Consent ApiComplianz GdprLuckywp Table Of Contents

Advertising

2
Google AdsGoogle AdSense

Libraries

1
jQueryv3.7.1

UI Components

1
Owl Carousel

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

Analytics

1
Google Analytics

Web Servers

1
Nginx

Languages

1
PHPv8.2.31

SEO Analysis

A+90/100
27
3
0
Meta Tags12/15
Content11/12
Headings8/8
Technical24/25
E-E-A-T7/7
Images6/7
Links2/5
URL5/5
Social5/5
Freshness4/4
Mobile3/4
Indexability3/3
O
operone.deoperone.de

Operone - Bühnenwerke mit Musik

Oper kann ein einzigartiges und belebendes Erlebnis sein, das unser Leben bereichert und uns ein neues Verständnis der Welt vermittelt.

Title Length31 chars

Recommended: 50-60 chars (~199px / 580px)

Description Length135 chars

Recommended: 120-160 chars

Issues (0)

    3 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    311 URLs

    311 sub-sitemaps

    robots.txt

    4 rules

    Sitemap reference found

    Allows all crawlers

    Local SEO

    Local Search Readiness

    11/100
    Poor
    3 14

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

    Sponsored

    AI & LLM Readiness

    D54/100
    Bot Access
    20/25
    Machine Read.
    7/25
    Schema Data
    13/25
    Citation
    14/25

    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.txtinvalid
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    Text ratio:15%
    Words:4,762
    Token eff.:Poor Structure

    Structured Data

    6 JSON-LD
    Article×1.2Person×1.3Organization×1.1WebSiteSearchAction
    sameAs entity links

    Citation Readiness

    Opening Summary10w
    Descriptive Headingsavg 2.2w
    Canonical URL
    Open Graph2/3
    Twitter Card3/3
    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.
    B
    78/100
    14
    Passed
    4
    Critical
    1
    Warnings
    Images & Alt Text
    18/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    16/20
    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
    7/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    12/15
    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.
    86/100
    A
    48 mg
    CO₂e / view
    470.1 KB
    Page Weight
    90%
    Cleaner Than
    New Visitor
    54 mg
    vs
    Returning (cached)
    27 mg
    Annual (10K/mo)
    5.7 kg
    Emission Segments
    Data Center
    2 mg
    Network
    14 mg
    Device
    31 mg
    Resource Breakdown
    JavaScript
    3.1 KB
    Images
    242.3 KB
    CSS
    179.0 KB
    Fonts
    2.0 KB
    HTML
    43.6 KB
    Green Hosting Verified
    Hetzner Online GmbH
    GWF Verified
    2 recommendations
    • •Carbon footprint recommendation preview...
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    F

    Security Score

    21%Critical
    Interactive

    HTTPS

    No WAF

    89d

    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

    30.05.2026

    Valid Until

    28.08.2026

    Subject Alternative Names (2)

    operone.dewww.operone.de

    SHA-256 Fingerprint

    79:A8:74:45:99:6E:80:51:AA:43:E2:BA:79:BC:D0:9F:8A:3A:30:38...

    Top Recommendations

    Security recommendation preview

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    Upgrade to view header details

    HTTP Headers

    Developer Console

    content-encoding
    📦 Gzip(gzip)
    content-type
    text/html; charset=UTF-8
    date
    Sat, 30 May 2026 15:51:47 GMT
    last-modified
    Sat, 30 May 2026 07:45:37 GMT
    server
    nginx
    vary
    Accept-Encoding
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    0

    SPF
    DKIM
    DMARC

    Domain Information

    operone.de

    Last Updated

    16.04.2023

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Complianz

    Cookie Consent Banner
    Complianz
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: Complianz
    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.
    A
    85/100
    Mobile Friendly10 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=1.0, maximum-scale=5.0, minimum-scale=1.0, user-scalable=yes
    1 recommendation
    • •Mobile compatibility recommendation preview...
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    Typography & Readability

    Roboto

    WCAG AA
    79/100
    Readability
    /30
    20/30

    16px · LH 1.85

    Hierarchy
    /20
    19/20

    2.37x ratio · ✓ H1→H6

    WCAG
    /25
    22/25

    5.04:1 min contrast

    Performance
    /25
    18/25

    1 font · 4 req

    Heading Font

    Roboto

    Sans38px

    Body Font

    Roboto

    Sans16px

    Contrast Ratio

    5.04:1

    WCAG AA (≥4.5:1)

    Reading Comfort

    ~39 CPL

    Narrow lines
    38px
    h1
    30px
    h2
    22px
    h3
    21px
    h4
    16px
    p

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

    ⚠️ Wide line spacing (1.85). 1.4–1.6 is optimal for body text.

    ⚠️ Hard to read: Flesch score 49/100. Simplify sentences for wider reach.

    ✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.0:1).

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

    ✅ Strong hierarchy: Headlines are 2.4x larger than body text.

    GGoogle FontsFlesch 49

    Color Palette

    4 unique colors
    20.87:1 AAA Light
    #ffffff
    Primary· 78.2%
    #010101
    Text· 16.200000000000003%

    Business & Marketing Stack

    2 Tools Detected

    Growing

    Behavior Analytics

    1
    Google AnalyticsFree

    User behavior and product analytics

    Privacy & Cookies

    1
    ComplianzSMB

    Cookie consent and privacy compliance tools

    2

    Categories

    2

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Ad Networks

    Google AdSense

    Sponsored

    Scripts & Styles

    2 Resources

    1
    Scripts
    1
    Styles
    1
    Async
    0
    Defer

    Top Script Sources

    operone.de(1)

    Website Identity

    Operone

    Operone

    Organization

    Oper kann ein einzigartiges und belebendes Erlebnis sein, das unser Leben bereichert und uns ein neues Verständnis der Welt vermittelt.

    Location detected: 🇩🇪 Germanyvia tld
    de

    Sponsored

    Last analyzed: 30 May 2026 at 15:52

    Historical Analysis & Change Tracking