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narcis.nl

https://narcis.nl· First analyzed 12 May 2026· Updated 12 May 2026
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narcis.nl
Desktop screenshot of narcis.nl
Mobile screenshot of narcis.nl
Mobile

Sponsored

Hosting Provider

Knaw

IP Address

194.171.144.106

Site Location

🇳🇱 Netherlandsvia phone

Server Location

🇳🇱 Terschelling Municipality, Netherlands

ASN

AS1103

Organization

Knaw

Server

Nginx

Nameservers

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

Performance

98

Core Web Vitals

Weight

First Contentful Paint
924 ms10%
Speed Index
1.2 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
999 KB
78 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.9.4
cms
DiviCustom

Technology Stack

20 Technologies Detected

Plugins

11
Wpdatatables
WPML
Email Encoder Bundle
Divi Machine
Gravity Forms
Stop User EnumerationGravityformsrecaptchaWp Statistics
Yoast SEO
Gravity Forms
WPML

Libraries

1
jQueryv3.5.1

UI Components

1
Slick Carousel

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

Analytics

1
Matomo

Web Servers

1
Nginxv1.14.1

Languages

1
PHPv7.4.33

Security

1
reCAPTCHA

SEO Analysis

B72/100
22
10
0
Meta Tags8/15
Content8/12
Headings8/8
Technical24/25
E-E-A-T0/7
Images4/7
Links4/5
URL5/5
Social3/5
Freshness4/4
Mobile1/4
Indexability3/3
N
narcis.nlnarcis.nl

NARCIS | DANS

NARCIS is dé nationale portal voor wie zoekt naar wetenschappelijke informatie, onderzoeksdata, onderzoekssoftware, beschrijvingen van onderzoeksprojecten en...

Description truncated.
Title Length13 chars

Recommended: 50-60 chars (~76px / 580px)

Description Length163 chars

Recommended: 120-160 chars

Issues (0)

    10 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    11 URLs

    11 sub-sitemaps

    robots.txt

    3 rules

    Local SEO

    Local Search Readiness

    20/100
    Needs Work
    6 10 1

    Sponsored

    AI & LLM Readiness

    D45/100
    Bot Access
    20/25
    Machine Read.
    7/25
    Schema Data
    4/25
    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.txt
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    Text ratio:1%
    Words:369
    Token eff.:Optimal

    Structured Data

    3 JSON-LD
    WebSiteBreadcrumbListSearchAction

    Citation Readiness

    Opening Summary45w
    Descriptive Headingsavg 3.5w
    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.
    A
    82/100
    14
    Passed
    3
    Critical
    1
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    20/20
    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
    14/15
    Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
    Keyboard & Focus
    8/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    10/15
    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.
    50/100
    B
    124 mg
    CO₂e / view
    999.1 KB
    Page Weight
    70%
    Cleaner Than
    New Visitor
    141 mg
    vs
    Returning (cached)
    71 mg
    Annual (10K/mo)
    14.8 kg
    Emission Segments
    Data Center
    28 mg
    Network
    30 mg
    Device
    66 mg
    Resource Breakdown
    JavaScript
    201.4 KB
    Images
    354.2 KB
    CSS
    406.9 KB
    HTML
    36.4 KB
    Other
    315 B
    Green Hosting Not Verified
    Knaw
    4 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    C

    Security Score

    66%Fair
    Interactive

    HTTPS

    No WAF

    32d

    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/1.1

    Valid From

    16.03.2026

    Valid Until

    14.06.2026

    Subject Alternative Names (2)

    dans.knaw.nlwww.dans.knaw.nl

    SHA-256 Fingerprint

    C7:10:39:24:C9:48:EC:79:C1:1C:C6:F5:9A:CC:E2:4D:63:1A:46:C1...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    connection
    keep-alive
    content-encoding
    📦 Gzip(gzip)
    content-length
    36927
    content-type
    text/html; charset=UTF-8
    date
    Tue, 12 May 2026 17:21:03 GMT
    link
    <https://dans.knaw.nl/nl/wp-json/>; rel="https://api.w.org/"...
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    30

    SPF
    DKIM
    DMARC

    Domain Information

    narcis.nl

    Domain Age
    26y 2m

    Created

    22.02.2000

    Last Updated

    31.03.2026

    Registrar

    SURF B.V.

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    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.
    B
    75/100
    Mobile Friendly25 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=1.0, user-scalable=0
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Glegoo + Open Sans

    WCAG Partial
    73/100
    Readability
    /30
    19/30

    16px · LH 1.70

    Hierarchy
    /20
    19/20

    3x ratio · ✓ H1→H6

    WCAG
    /25
    19/25

    1:1 min contrast

    Performance
    /25
    16/25

    2 fonts · 13 req

    Heading Font

    Glegoo

    Sans48px

    Body Font

    Open Sans

    Sans16px

    Contrast Ratio

    1:1

    2 issues

    Reading Comfort

    ~34 CPL

    Narrow lines
    48px
    h1
    32px
    h2
    24px
    h3
    24px
    h4
    16px
    p

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

    ❌ Very complex text: Flesch score 23/100. Consider shorter sentences and simpler words.

    ⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 1.0:1).

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

    ✅ Strong hierarchy: Headlines are 3.0x larger than body text.

    ✅ Lean font stack: 2 font families keeps load times fast.

    Buy on MyFontsFlesch 23

    Color Palette

    7 unique colors
    Light
    #ffffff
    Background· 85.3%
    #e5f8ff
    Primary· 5.4%
    #a7b5b9
    Secondary· 3.6%
    #cbd6d8
    Secondary· 2.2%
    #6d838b
    Secondary· 1.8%
    #96cdd9
    Secondary· 0.8%

    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

    30 Resources

    20
    Scripts
    10
    Styles
    2
    Async
    8
    Defer

    Top Script Sources

    dans.knaw.nl(14)gstatic.com(1)stats.dans.knaw.nl(1)ajax.googleapis.com(1)kit.fontawesome.com(1)

    Website Identity

    NARCIS | DANS

    NARCIS is dé nationale portal voor wie zoekt naar wetenschappelijke informatie, onderzoeksdata, onderzoekssoftware, beschrijvingen van onderzoeksprojecten en meer.

    +31 88 003 46 66
    dans.knaw.nl/nl/data-diensten/narcis/
    26 years old
    Location detected: 🇳🇱 Netherlandsvia phone
    SURF B.V.nl-NL

    Social Profiles

    LinkedInYouTubeBluesky

    Sponsored

    Last analyzed: 12 May 2026 at 17:21

    Historical Analysis & Change Tracking