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kkl-luzern.ch

https://kkl-luzern.ch· First analyzed 12 May 2026· Updated 12 May 2026
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kkl-luzern.ch
Desktop screenshot of kkl-luzern.ch
Mobile screenshot of kkl-luzern.ch
Mobile

Sponsored

Hosting Provider

Vercel
vercel.com

IP Address

76.76.21.21

Site Location

🇨🇭 Switzerlandvia phone

Server Location

🇺🇸 Walnut, United States

ASN

AS16509

Organization

Vercel, Inc

Server

Vercel

Nameservers

ns2.arcade.ch.ns3.arcade.ch.ns1.arcade.ch.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
768 ms10%
Speed Index
998 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.9 MB
116 requests

Image Optimization

Lazy LoadResponsiveVercel Image Optimization
0–49
50–89
90–100

Architecture Stack

JAMstack
🔀 Hybrid
Decoupled
Frontend
Framework
Next.js
Styling
Tailwind CSS
API
Data Source
Headless CMS
DatoCMS
Infrastructure
Platform
Vercel
CDN
Vercel Image

Detected API Sources

/_next/image?url=https%3A%2F%2.../_next/image?url=https%3A%2F%2...

Technology Stack

8 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Meta Frameworks

1
Next.js

Other

1
D3.js

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Email Marketing

1
Mailchimp

Platforms

1
Vercel

SEO Analysis

B71/100
19
8
0
Meta Tags15/15
Content8/12
Headings5/8
Technical17/21
E-E-A-T0/7
Images6/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile3/4
Indexability3/3
K
kkl-luzern.chkkl-luzern.ch

Herzlich willkommen im Kultur- und Kongresszentrum Luzern

Erleben Sie das architektonische Meisterwerk von Jean Nouvel! Kaufen Sie Tickets für Konzerte und weitere Events und entdecken Sie kulinarische Highlights.

Title Length57 chars

Recommended: 50-60 chars (~352px / 580px)

Description Length156 chars

Recommended: 120-160 chars

Issues (0)

    8 issues found

    Upgrade to view details

    Local SEO

    Local Search Readiness

    17/100
    Poor
    5 11 1

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

    Sponsored

    AI & LLM Readiness

    D45/100
    Bot Access
    20/25
    Machine Read.
    13/25
    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
    nav
    Text ratio:1%
    Words:942
    Token eff.:Optimal
    Depth:1/5

    Structured Data

    1 JSON-LD

    Citation Readiness

    Opening Summary
    Descriptive Headingsavg 6.4w
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (8)
    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.
    A
    83/100
    12
    Passed
    4
    Critical
    0
    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
    11/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    9/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    1 recommendation
    • •Accessibility recommendation preview...
    Upgrade to view recommendations

    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.
    43/100
    E
    303 mg
    CO₂e / view
    2.9 MB
    Page Weight
    30%
    Cleaner Than
    New Visitor
    346 mg
    vs
    Returning (cached)
    173 mg
    Annual (10K/mo)
    36.3 kg
    Emission Segments
    Data Center
    15 mg
    Network
    89 mg
    Device
    199 mg
    Resource Breakdown
    JavaScript
    859.2 KB
    Images
    1.6 MB
    CSS
    284.4 KB
    HTML
    62.4 KB
    Other
    118.3 KB
    Green Hosting Verified
    Vercel
    Provider Match
    6 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    36%Critical
    Interactive

    HTTPS

    No WAF

    80d

    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

    03.05.2026

    Valid Until

    01.08.2026

    Subject Alternative Names (1)

    www.kkl-luzern.ch

    SHA-256 Fingerprint

    38:72:B6:B1:B3:43:56:21:C5:E0:AD:C9:DF:E3:57:DB:17:5E:9B:C9...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    age
    130318
    cache-control
    🟡 0s(public, max-age=0, must-revalidate)
    content-encoding
    ⚡ Brotli(br)
    content-type
    text/html; charset=utf-8
    date
    Mon, 11 May 2026 06:17:25 GMT
    etag
    W/"ozemrqzv5a9ufl"
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    95

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (3)

    gateway1.spamcleaner.ch
    gateway2.spamcleaner.ch
    gateway.spamcleaner.ch

    Domain Information

    kkl-luzern.ch

    DNSSEC
    Not Enabled

    Privacy & Compliance

    iubenda

    Cookie Consent Banner
    iubenda
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: iubenda
    Privacy policy page linked
    Data Protection Officer mentioned

    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
    82/100
    Mobile Friendly28 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
    1 recommendation
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Lyon Display Web + -apple-system

    WCAG AAA
    72/100
    Readability
    /30
    20/30

    14px · LH 1.40

    Hierarchy
    /20
    14/20

    6x ratio

    WCAG
    /25
    23/25

    16.03:1 min contrast

    Performance
    /25
    15/25

    System fonts

    Heading Font

    Lyon Display Web

    Sans84px

    Body Font

    -apple-system

    Sans14px

    Contrast Ratio

    16.03:1

    WCAG AAA (≥7:1)

    Reading Comfort

    ~41 CPL

    Narrow lines
    84px
    h1
    64px
    h2
    44px
    h3
    14px
    p

    ⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

    ✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

    ✅ WCAG AAA contrast: All text meets 7:1 ratio (min 16.0:1).

    ⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

    ✅ Strong hierarchy: Headlines are 6.0x larger than body text.

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

    Buy on MyFontsFluid Type (rem)

    Color Palette

    8 unique colors
    4.1:1 AA Large Light
    #ffffff
    Text· 14.399999999999999%
    #7f7e70
    Other· 7.1%
    #030202
    Background· 24.1%
    #4b3d33
    Secondary· 20.9%
    #1f0e08
    Primary· 13.2%
    #452413
    Accent· 11.9%
    #5a503d
    Secondary· 4.5%
    #d0ceb3
    Secondary· 3.8%

    Business & Marketing Stack

    4 Tools Detected

    Enterprise

    Marketing Automation

    1
    MailchimpSMB

    Email marketing and automation platforms

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    Privacy & Cookies

    1
    IubendaSMB

    Cookie consent and privacy compliance tools

    3

    Categories

    4

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Sophisticated marketing and sales technology infrastructure

    Sponsored

    Scripts & Styles

    25 Resources

    20
    Scripts
    5
    Styles
    9
    Async
    1
    Defer

    Top Script Sources

    local(15)cdn.iubenda.com(3)cs.iubenda.com(1)googletagmanager.com(1)

    Website Identity

    Kultur- und Kongresszentrum Luzern (KKL) - Kartenverkauf

    MusicVenue
    +41 41 226 77 77
    Location detected: 🇨🇭 Switzerlandvia phone
    de

    Sponsored

    Last analyzed: 12 May 2026 at 18:29

    Historical Analysis & Change Tracking