StackOptic
Back to Search
npo3.nl favicon

npo3.nl

https://npo3.nl· First analyzed 03 May 2026· Updated 03 May 2026
Export
npo3.nl
Desktop screenshot of npo3.nl
Mobile screenshot of npo3.nl
Mobile

Sponsored

Hosting Provider

Publieke Omroep Nederland

IP Address

145.58.30.3

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇳🇱 Hilversum, Netherlands

ASN

AS25182

CDN

CloudFront

Nameservers

ns3.npohosting.nl.ns1.npohosting.nl.ns2.npohosting.eu.

Performance

94

Core Web Vitals

Weight

First Contentful Paint
1.2 s10%
Speed Index
1.6 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
110 KB
97 requests

Image Optimization

Responsive
0–49
50–89
90–100

Architecture Stack

Hybrid
⚡ SSG
Frontend
Framework
Next.js
Infrastructure
Platform
AWS CloudFront
CDN
CloudFront

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

2 Technologies Detected

Meta Frameworks

1
Next.js

CSS Frameworks

1
Tailwind CSS

SEO Analysis

C65/100
19
8
0
Meta Tags5/15
Content6/12
Headings8/8
Technical20/25
E-E-A-T0/7
Images5/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile4/4
Indexability3/3
N
npo3.nlnpo3.nl

NPO Start NEXT | NPO Start

Check hier je favo online series!

Title Length26 chars

Recommended: 50-60 chars (~164px / 580px)

Description Length33 chars

Recommended: 120-160 chars

Issues (0)

    8 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    11 URLs

    11 sub-sitemaps

    robots.txt

    13 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    6/100
    Poor
    2 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

    D43/100
    Bot Access
    20/25
    Machine Read.
    13/25
    Schema Data
    1/25
    Citation
    9/25

    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:584
    Token eff.:Optimal
    Sections/1K:5.1
    Depth:1/5

    Structured Data

    1 JSON-LD
    BreadcrumbList

    Citation Readiness

    Opening Summary11w
    Descriptive Headingsavg 2.7w
    Canonical URL
    Open Graph3/3
    Twitter Card1/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (10)
    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
    78/100
    11
    Passed
    2
    Critical
    0
    Warnings
    Images & Alt Text
    15/20
    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
    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
    9/15
    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.
    60/100
    A+
    14 mg
    CO₂e / view
    109.5 KB
    Page Weight
    95%
    Cleaner Than
    New Visitor
    16 mg
    vs
    Returning (cached)
    8 mg
    Annual (10K/mo)
    1.6 kg
    Emission Segments
    Data Center
    3 mg
    Network
    3 mg
    Device
    7 mg
    Resource Breakdown
    Images
    2.0 KB
    Fonts
    81.1 KB
    HTML
    8.8 KB
    Other
    17.5 KB
    Green Hosting Not Verified
    Publieke Omroep Nederland
    3 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    A

    Security Score

    81%Very Good
    Static / Informational

    HTTPS

    No WAF

    144d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Amazon

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2+H3

    Valid From

    11.03.2026

    Valid Until

    24.09.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (1)

    npo.nl

    SHA-256 Fingerprint

    79:04:83:97:53:EA:FF:FD:1D:87:B6:AE:BD:CD:27:B2:7A:58:6A:7C...

    Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    age
    38
    alt-svc
    h3=":443"; ma=86400
    cache-control
    ⚪ Custom(s-maxage=60, stale-while-revalidate=31535940)
    content-encoding
    📦 Gzip(gzip)
    content-type
    text/html; charset=utf-8
    date
    Sun, 03 May 2026 02:36:15 GMT
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    95

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (1)

    npo3-nl.mail.protection.outlook.com

    Domain Information

    npo3.nl

    Domain Age
    15y 1m

    Created

    21.03.2011

    Last Updated

    29.12.2025

    Registrar

    NPO

    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.
    B
    71/100
    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
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    NPO Scandia + NPO Sans

    WCAG Partial
    64/100
    Readability
    /30
    11/30

    13px · LH 1.30

    Hierarchy
    /20
    19/20

    3.69x ratio · ✓ H1→H6

    WCAG
    /25
    16/25

    1:1 min contrast

    Performance
    /25
    18/25

    2 fonts · 4 req

    Heading Font

    NPO Scandia

    Sans48px

    Body Font

    NPO Sans

    Sans13px

    Contrast Ratio

    1:1

    17 issues

    Reading Comfort

    Dual Sans-Serif

    left aligned
    48px
    h1
    22px
    h2
    18px
    h3
    13px
    p

    ❌ Critical: 13px body text is too small. Minimum 14px, recommend 16px+.

    ⚠️ Tight line spacing (1.30). Increase to 1.4–1.6 for better readability.

    ⚠️ Hard to read: Flesch score 33/100. Simplify sentences for wider reach.

    ⚠️ Partial contrast: 17 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 3.7x larger than body text.

    Buy on MyFontsFlesch 33

    Color Palette

    9 unique colors
    Light
    #a7a7a2
    Other· 5.4%
    #0a1832
    Primary· 40.5%
    #2c2f3a
    Secondary· 17.5%
    #38484f
    Secondary· 7.9%
    #300b8c
    Accent· 7.4%
    #7f6e5f
    Secondary· 6.9%
    #854b35
    Secondary· 5.9%
    #1e105f
    Accent· 4.5%

    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

    17 Resources

    15
    Scripts
    2
    Styles
    1
    Async
    15
    Defer

    Top Script Sources

    assets-start.npo.nl(14)cookies.npo.nl(1)

    Website Identity

    npo3.nl

    15 years old
    Location detected: 🇳🇱 Netherlandsvia tld
    NPO📧 Microsoft 365nl

    Social Profiles

    FacebookInstagram

    Sponsored

    Last analyzed: 03 May 2026 at 02:37

    Historical Analysis & Change Tracking