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openresearch.amsterdam

https://openresearch.amsterdam· First analyzed 21 May 2026· Updated 21 May 2026
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openresearch.amsterdam
Desktop screenshot of openresearch.amsterdam
Mobile screenshot of openresearch.amsterdam
Mobile

Sponsored

Hosting Provider

Driebit Hosting B.V.

IP Address

83.98.140.23

Site Location

🇳🇱 Netherlandsvia ip

Server Location

🇳🇱 Amsterdam, The Netherlands

ASN

AS8315

Organization

Driebit Hosting B.V.

Nameservers

ns1.driebit.net.ns2.driebit.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
544 ms10%
Speed Index
707 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.1 MB
67 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
Infrastructure
Hosting
Driebit Hosting B.V.

Technology Stack

4 Technologies Detected

CSS Frameworks

2
Tailwind CSS
Bootstrap

Libraries

1
jQuery UI

UI Components

1
Fancybox

SEO Analysis

B77/100
23
6
0
Meta Tags14/15
Content12/12
Headings6/8
Technical21/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social3/5
Freshness2/4
Mobile4/4
Indexability3/3
O
openresearch.amsterdamopenresearch.amsterdam

The Amsterdam knowledge platform - openresearch.amsterdam

openresearch.amsterdam is a digital platform for research, knowledge, and innovation about Amsterdam and the metropolitan area. The goal of the platform is t...

Description truncated.
Title Length57 chars

Recommended: 50-60 chars (~363px / 580px)

Description Length194 chars

Recommended: 120-160 chars

Issues (0)

    6 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    11 URLs

    11 sub-sitemaps

    robots.txt

    2 rules

    Allows all crawlers

    Local SEO

    Local Search Readiness

    10/100
    Poor
    3 13 2

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

    Sponsored

    AI & LLM Readiness

    D50/100
    Bot Access
    20/25
    Machine Read.
    13/25
    Schema Data
    0/25
    Citation
    17/25

    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:524
    Token eff.:Optimal
    Sections/1K:24.8
    Depth:1/5

    Structured Data

    4 JSON-LD

    Citation Readiness

    Opening Summary55w
    Descriptive Headingsavg 3.2w
    Canonical URL
    Open Graph3/3
    Twitter Card0/3
    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.
    C
    66/100
    9
    Passed
    2
    Critical
    2
    Warnings
    Images & Alt Text
    15/20
    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
    13/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    0/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    3 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.
    28/100
    D
    268 mg
    CO₂e / view
    2.1 MB
    Page Weight
    50%
    Cleaner Than
    New Visitor
    306 mg
    vs
    Returning (cached)
    153 mg
    Annual (10K/mo)
    32.2 kg
    Emission Segments
    Data Center
    60 mg
    Network
    64 mg
    Device
    144 mg
    Resource Breakdown
    JavaScript
    275.4 KB
    Images
    1.5 MB
    CSS
    121.6 KB
    Fonts
    166.6 KB
    HTML
    49.4 KB
    Green Hosting Not Verified
    Driebit Hosting B.V.
    6 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    A

    Security Score

    81%Very Good
    Interactive

    HTTPS

    No WAF

    72d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    ECDSA (secp384r1) (384 bit)

    Signature

    ECDSA with SHA-384

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    04.05.2026

    Valid Until

    02.08.2026

    Subject Alternative Names (2)

    openresearch.amsterdamwww.openresearch.amsterdam

    SHA-256 Fingerprint

    20:6C:FE:D1:CD:47:ED:A1:61:31:6D:3C:7F:A4:88:E3:49:D3:A7:B2...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    content-length
    50238
    content-security-policy
    default-src 'self'; object-src 'none'; style-src 'self' 'non...
    content-type
    text/html;charset=utf-8
    date
    Thu, 21 May 2026 15:34:43 GMT
    expect-ct
    max-age=86400, enforce
    feature-policy
    autoplay 'none';camera 'none';fullscreen 'self';geolocation ...
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    45

    SPF
    DKIM
    DMARC

    MX Records (1)

    ext02.hlm1.driebit.net

    Domain Information

    openresearch.amsterdam

    Domain Age
    9 years

    Created

    09.05.2017

    Expires

    09.05.2027

    Last Updated

    09.05.2026

    Registrar

    Key-Systems LLC

    DNSSEC
    Not Enabled

    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
    61/100
    Mobile Friendly1 breakpoint
    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
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Avenir

    WCAG Partial
    68/100
    Readability
    /30
    21/30

    16px · LH 1.22

    Hierarchy
    /20
    17/20

    2.78x ratio

    WCAG
    /25
    19/25

    1:1 min contrast

    Performance
    /25
    11/25

    1 font · 9 req

    Heading Font

    Avenir

    Sans45px

    Body Font

    Avenir

    Sans16px

    Contrast Ratio

    1:1

    1 issue

    Reading Comfort

    ~41 CPL

    Narrow lines
    45px
    h1
    40px
    h2
    20px
    h3
    18px
    h4
    16px
    p

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

    ⚠️ Tight line spacing (1.22). Increase to 1.4–1.6 for better readability.

    ❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

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

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

    ✅ Strong hierarchy: Headlines are 2.8x larger than body text.

    Buy on MyFontsFlesch 0

    Color Palette

    5 unique colors
    3.83:1 AA Large Light
    #ffffff
    Background· 66.3%
    #888087
    Other· 5.1%
    #f5f2e9
    Primary· 20.599999999999998%
    #9a323b
    Accent· 4.1%

    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

    Sponsored

    Scripts & Styles

    9 Resources

    5
    Scripts
    4
    Styles
    2
    Async
    1
    Defer

    Top Script Sources

    local(3)dap.amsterdam.nl(2)

    Website Identity

    openresearch.amsterdam

    9 years old
    Location detected: 🇳🇱 Netherlandsvia ip
    Key-Systems LLCen

    Social Profiles

    InstagramLinkedIn

    Sponsored

    Last analyzed: 21 May 2026 at 15:34

    Historical Analysis & Change Tracking