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tinbergen.nl

https://tinbergen.nl· First analyzed 21 May 2026· Updated 21 May 2026
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tinbergen.nl
Desktop screenshot of tinbergen.nl
Mobile screenshot of tinbergen.nl
Mobile

Sponsored

Hosting Provider

Exonet

IP Address

178.22.57.73

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇳🇱 Zevenaar, The Netherlands

ASN

AS12859

Server

Nginx

Nameservers

ns2.surfnet.nl.ns3.surfnet.nl.ns1.zurich.surf.net.ns1.surfnet.nl.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
679 ms10%
Speed Index
883 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
3 MB
29 requests

Image Optimization

Responsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Exonet

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

4 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Analytics

1
Google Analytics

Tag Managers

1
Google Tag Manager

Web Servers

1
Nginx

SEO Analysis

C63/100
16
10
0
Meta Tags7/15
Content11/12
Headings6/8
Technical16/25
E-E-A-T0/7
Images3/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
T
tinbergen.nltinbergen.nl

Tinbergen Institute

Graduate school and research institute in economics, econometrics and finance.

Title Length19 chars

Recommended: 50-60 chars (~111px / 580px)

Description Length78 chars

Recommended: 120-160 chars

Issues (0)

    10 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    201 URLs

    robots.txt

    1 rules

    Allows all crawlers

    Local SEO

    Local Search Readiness

    5/100
    Poor
    2 14 2

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

    Sponsored

    AI & LLM Readiness

    F39/100
    Bot Access
    20/25
    Machine Read.
    8/25
    Schema Data
    0/25
    Citation
    11/25

    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:1,470
    Token eff.:Optimal
    Depth:1/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary473w
    Descriptive Headingsavg 9.5w
    Canonical URL
    Open Graph2/3
    Twitter Card1/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (11)
    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.
    D
    58/100
    8
    Passed
    5
    Critical
    2
    Warnings
    Images & Alt Text
    8/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    15/20
    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
    9/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    1/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    5 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.
    42/100
    E
    311 mg
    CO₂e / view
    3.0 MB
    Page Weight
    30%
    Cleaner Than
    New Visitor
    356 mg
    vs
    Returning (cached)
    178 mg
    Annual (10K/mo)
    37.4 kg
    Emission Segments
    Data Center
    15 mg
    Network
    92 mg
    Device
    205 mg
    Resource Breakdown
    JavaScript
    105.9 KB
    Images
    2.8 MB
    CSS
    113.1 KB
    HTML
    33.0 KB
    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

    47d

    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

    09.04.2026

    Valid Until

    08.07.2026

    Subject Alternative Names (2)

    *.tinbergen.nltinbergen.nl

    SHA-256 Fingerprint

    CF:0D:E5:9E:FA:59:C7:23:AA:68:27:CE:DA:C5:27:25:0C:0D:66:CA...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🔴 No Cache(no-cache, private)
    content-encoding
    📦 Gzip(gzip)
    content-type
    text/html; charset=UTF-8
    date
    Thu, 21 May 2026 23:16:25 GMT
    server
    nginx
    vary
    Accept-Encoding
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    68

    SPF
    DKIM
    DMARC

    DMARC Policy

    Quarantine (Moderate)

    MX Records (1)

    tinbergen-nl.mail.protection.outlook.com

    Domain Information

    tinbergen.nl

    Domain Age
    26y 6m

    Created

    16.11.1999

    Last Updated

    09.04.2026

    Registrar

    Erasmus Universiteit Rotterdam

    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.
    C
    64/100
    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
    4 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    catamaran

    WCAG Partial
    70/100
    Readability
    /30
    22/30

    18px · LH 1.65

    Hierarchy
    /20
    18/20

    2.67x ratio

    WCAG
    /25
    17/25

    2.1:1 min contrast

    Performance
    /25
    13/25

    1 font · 4 req

    Heading Font

    catamaran

    Sans48px

    Body Font

    catamaran

    Sans18px

    Contrast Ratio

    2.1:1

    7 issues

    Reading Comfort

    ~35 CPL

    Narrow lines
    48px
    h1
    32px
    h2
    18px
    p

    ✅ Excellent readability: 18px body text is ideal for all devices.

    ❌ Very complex text: Flesch score 10/100. Consider shorter sentences and simpler words.

    ⚠️ Partial contrast: 7 elements below WCAG AA threshold (min 2.1:1).

    ⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

    ✅ Strong hierarchy: Headlines are 2.7x larger than body text.

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

    Buy on MyFontsFlesch 10

    Color Palette

    13 unique colors
    9.12:1 AAA Light
    #ffffff
    Primary· 13.2%
    #464946
    Other· 11.8%
    #02040a
    Accent· 12.600000000000001%
    #3c3428
    Secondary· 7.6%
    #141727
    Secondary· 7%
    #76522e
    Secondary· 6.8%
    #6c6652
    Secondary· 6.4%
    #9e7b47
    Secondary· 6.2%

    Business & Marketing Stack

    2 Tools Detected

    Growing

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    1

    Categories

    2

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    6 Resources

    5
    Scripts
    1
    Styles
    3
    Async
    2
    Defer

    Top Script Sources

    local(3)google-analytics.com(1)googletagmanager.com(1)

    Website Identity

    tinbergen.nl

    26 years old
    Location detected: 🇳🇱 Netherlandsvia tld
    Erasmus Universiteit Rotterdam📧 Microsoft 365

    Social Profiles

    FacebookBluesky

    Sponsored

    Last analyzed: 21 May 2026 at 23:16

    Historical Analysis & Change Tracking

    tinbergen.nl Technology Stack - Built With Tailwind CSS, Google Analytics, Google Tag Manager, Nginx | StackOptic | StackOptic