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concertgebouw.be

https://concertgebouw.be· First analyzed 19 May 2026· Updated 19 May 2026
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concertgebouw.be
Desktop screenshot of concertgebouw.be
Mobile screenshot of concertgebouw.be
Mobile

Sponsored

Hosting Provider

Exonet

IP Address

178.22.60.117

Site Location

🇧🇪 Belgiumvia tld

Server Location

🇳🇱 Zevenaar, The Netherlands

ASN

AS12859

Server

Nginx

Nameservers

ns1.transip.nl.ns0.transip.net.ns2.transip.eu.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
827 ms10%
Speed Index
1.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
3.4 MB
41 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Exonet

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

9 Technologies Detected

Analytics

5
Google Analytics
Google Analytics 4
Hotjar
SegmentFullStory

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Customer Support

1
Tawk.to

Web Servers

1
Nginx

SEO Analysis

B71/100
22
7
0
Meta Tags8/15
Content10/12
Headings8/8
Technical19/25
E-E-A-T0/7
Images5/7
Links5/5
URL5/5
Social3/5
Freshness2/4
Mobile3/4
Indexability3/3
C
concertgebouw.beconcertgebouw.be

Concertgebouw Brugge

Concertgebouw Brugge is een kunstinstelling voor muziek en hedendaagse dans, literatuur, beeldende kunst en klankkunst met een gereputeerde akoestiek in de C...

Description truncated.
Title Length20 chars

Recommended: 50-60 chars (~126px / 580px)

Description Length184 chars

Recommended: 120-160 chars

Issues (0)

    7 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    20,759 URLs

    robots.txt

    5 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    13/100
    Poor
    4 12 2

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

    Sponsored

    AI & LLM Readiness

    F31/100
    Bot Access
    20/25
    Machine Read.
    1/25
    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
    Text ratio:5%
    Words:3,619
    Token eff.:Poor Structure

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary101w
    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 (12)
    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
    75/100
    13
    Passed
    2
    Critical
    2
    Warnings
    Images & Alt Text
    18/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    18/20
    Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
    Forms & Inputs
    5/15
    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
    15/15
    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...
    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.
    48/100
    E
    347 mg
    CO₂e / view
    3.4 MB
    Page Weight
    15%
    Cleaner Than
    New Visitor
    396 mg
    vs
    Returning (cached)
    198 mg
    Annual (10K/mo)
    41.6 kg
    Emission Segments
    Data Center
    17 mg
    Network
    102 mg
    Device
    228 mg
    Resource Breakdown
    JavaScript
    231.0 KB
    Images
    2.9 MB
    CSS
    167.5 KB
    HTML
    39.4 KB
    Other
    546 B
    Green Hosting Verified
    BIT
    GWF Verified
    5 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    21%Critical
    Interactive

    HTTPS

    No WAF

    71d

    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

    01.05.2026

    Valid Until

    30.07.2026

    Subject Alternative Names (2)

    *.concertgebouw.beconcertgebouw.be

    SHA-256 Fingerprint

    55:44:4E:74:43:AD:A7:AD:8A:CE:60:D8:6B:1B:F3:27:B0:74:FF:75...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🟡 0s(max-age=0, must-revalidate, private)
    content-encoding
    📦 Gzip(gzip)
    content-type
    text/html; charset=UTF-8
    date
    Tue, 19 May 2026 23:50:26 GMT
    expires
    Tue, 19 May 2026 23:50:26 GMT
    server
    nginx
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    100

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (1)

    concertgebouw-be.mail.protection.outlook.com

    Domain Information

    concertgebouw.be

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookiebot

    Cookie Consent Banner
    Cookiebot
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: Cookiebot
    Privacy policy page linked
    Data Protection Officer mentioned
    Legitimate interest basis 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
    80/100
    Mobile Friendly24 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
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Roobert

    WCAG Fail
    74/100
    Readability
    /30
    22/30

    16px · LH 1.50

    Hierarchy
    /20
    17/20

    6.25x ratio · ✓ H1→H6

    WCAG
    /25
    15/25

    1:1 min contrast

    Performance
    /25
    20/25

    1 font · 2 req

    Heading Font

    Roobert

    Sans100px

    Body Font

    Roobert

    Sans16px

    Contrast Ratio

    1:1

    41 issues

    Reading Comfort

    ~41 CPL

    Narrow lines
    100px
    h1
    58px
    h2
    38px
    h3
    22px
    h4
    16px
    p

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

    ✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

    ❌ Low contrast: 41 elements fail WCAG AA (min 1.0:1). Increase text/background contrast.

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

    ✅ Strong hierarchy: Headlines are 6.2x larger than body text.

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

    Buy on MyFonts

    Color Palette

    9 unique colors
    17.58:1 AAA Dark
    #191919
    Text· 17.6%
    #ffffff
    Primary· 17.4%
    #643b4d
    Secondary· 15.4%
    #351213
    Secondary· 14.6%
    #7c5666
    Secondary· 11.1%
    #090505
    Primary· 9.1%
    #4e1e9f
    Accent· 6.7%

    Business & Marketing Stack

    3 Tools Detected

    Advanced

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    Privacy & Cookies

    1
    CookiebotMid-Market

    Cookie consent and privacy compliance tools

    2

    Categories

    3

    Total Tools

    0

    Enterprise

    1

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Sponsored

    Scripts & Styles

    12 Resources

    11
    Scripts
    1
    Styles
    5
    Async
    4
    Defer

    Top Script Sources

    local(4)consent.cookiebot.com(2)googletagmanager.com(2)analytics.ahrefs.com(1)secure.adnxs.com(1)

    Website Identity

    concertgebouw.be

    Location detected: 🇧🇪 Belgiumvia tld
    📧 Microsoft 365nl

    Sponsored

    Last analyzed: 19 May 2026 at 23:50

    Historical Analysis & Change Tracking