StackOptic
Back to Search
ivn.nl favicon

ivn.nl

https://ivn.nl· First analyzed 30 Apr 2026· Updated 30 Apr 2026
Export
ivn.nl
Desktop screenshot of ivn.nl
Mobile screenshot of ivn.nl
Mobile

Sponsored

Hosting Provider

Poundhost

IP Address

94.76.252.28

Site Location

🇳🇱 Netherlandsvia phone

Server Location

🇬🇧 London, United Kingdom

ASN

AS29550

Organization

Poundhost

Server

Nginx

Nameservers

ns3.emswitch.net.ns1.emswitch.net.ns2.emswitch.net.

Performance

90

Core Web Vitals

Weight

First Contentful Paint
1.5 s10%
Speed Index
1.9 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
4.2 MB
120 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.9.4
cms

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

18 Technologies Detected

Analytics

5
Google Analytics
Google Analytics 4
Facebook Pixel
Hotjar
Microsoft Clarity

Advertising

5
Twitter AdsLinkedIn AdsPinterest TagSnapchat PixelMicrosoft Advertising

Plugins

2
Yoast SEO
WP Rocket

Libraries

1
jQueryv3.6.0

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

Web Servers

1
Nginx

Security

1
reCAPTCHA

SEO Analysis

A83/100
24
6
0
Meta Tags14/15
Content11/12
Headings8/8
Technical24/25
E-E-A-T2/7
Images3/7
Links4/5
URL5/5
Social4/5
Freshness4/4
Mobile1/4
Indexability3/3
I
ivn.nlivn.nl

Samen brengen we de natuur dichterbij - IVN

IVN Natuureducatie laat kinderen en volwassenen beleven hoe leuk, gezond én belangrijk natuur is. Doe je mee? Bezoek onze website.

Title Length43 chars

Recommended: 50-60 chars (~265px / 580px)

Description Length130 chars

Recommended: 120-160 chars

Issues (0)

    6 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    31 URLs

    31 sub-sitemaps

    robots.txt

    106 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    34/100
    Needs Work
    9 11

    Sponsored

    AI & LLM Readiness

    D55/100
    Bot Access
    20/25
    Machine Read.
    13/25
    Schema Data
    8/25
    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
    nav
    Text ratio:3%
    Words:853
    Token eff.:Optimal
    Sections/1K:9.4
    Depth:1/5

    Structured Data

    5 JSON-LD
    Organization×1.1WebSiteBreadcrumbListSearchAction
    sameAs entity links

    Citation Readiness

    Opening Summary688w
    Descriptive Headingsavg 3.1w
    Canonical URL
    Open Graph3/3
    Twitter Card1/3
    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.
    A
    86/100
    15
    Passed
    1
    Critical
    1
    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
    13/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    8/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    1 recommendation
    • •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.
    20/100
    F
    530 mg
    CO₂e / view
    4.2 MB
    Page Weight
    15%
    Cleaner Than
    New Visitor
    606 mg
    vs
    Returning (cached)
    303 mg
    Annual (10K/mo)
    63.6 kg
    Emission Segments
    Data Center
    119 mg
    Network
    127 mg
    Device
    285 mg
    Resource Breakdown
    JavaScript
    587.2 KB
    Images
    3.1 MB
    CSS
    378.0 KB
    Fonts
    131.1 KB
    HTML
    25.5 KB
    Green Hosting Not Verified
    Poundhost
    9 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    21%Critical
    Interactive

    HTTPS

    No WAF

    31d

    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

    03.03.2026

    Valid Until

    01.06.2026

    Subject Alternative Names (1)

    www.ivn.nl

    SHA-256 Fingerprint

    56:4A:EA:DC:7B:00:09:E4:72:75:55:E5:00:9F:EC:7D:62:E6:E7:06...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    content-encoding
    ⚡ Brotli(br)
    content-type
    text/html; charset=UTF-8
    date
    Thu, 30 Apr 2026 03:50:20 GMT
    last-modified
    Wed, 29 Apr 2026 20:48:53 GMT
    server
    nginx
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    90

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (1)

    ivn-nl.mail.protection.outlook.com

    Domain Information

    ivn.nl

    Domain Age
    30y 1m

    Created

    19.03.1996

    Last Updated

    11.07.2025

    Registrar

    Registrar.eu

    DNSSEC
    Not Enabled

    Privacy & Compliance

    CookieYes

    Cookie Consent Banner
    CookieYes
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: CookieYes
    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
    77/100
    Mobile Friendly3 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

    Bree Regular + Open Sans

    WCAG Partial
    77/100
    Readability
    /30
    26/30

    16px · LH 1.60

    Hierarchy
    /20
    17/20

    2.5x ratio · ✓ H1→H6

    WCAG
    /25
    16/25

    1:1 min contrast

    Performance
    /25
    18/25

    2 fonts · 6 req

    Heading Font

    Bree Regular

    Sans40px

    Body Font

    Open Sans

    Sans16px

    Contrast Ratio

    1:1

    20 issues

    Reading Comfort

    ~36 CPL

    Narrow lines
    40px
    h1
    48px
    h2
    36px
    h3
    16px
    p
    Minor Second
    Scale

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

    ✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

    ⚠️ Hard to read: Flesch score 34/100. Simplify sentences for wider reach.

    ⚠️ Partial contrast: 20 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 2.5x larger than body text.

    Buy on MyFontsFlesch 34

    Color Palette

    13 unique colors
    Light
    #ffffff
    Primary· 14.899999999999999%
    #62ba47
    Primary· 15.399999999999999%
    #aac965
    Secondary· 10.100000000000001%
    #e2d9a9
    Secondary· 8.7%
    #9d9f7e
    Secondary· 8.4%
    #3d6f1e
    Primary· 7.9%
    #f2f5e6
    Primary· 5.9%
    #5f5f3c
    Secondary· 5.9%

    Business & Marketing Stack

    10 Tools Detected

    Enterprise

    Behavior Analytics

    3
    Google Tag ManagerFree
    Google AnalyticsFree
    Microsoft ClarityFree

    User behavior and product analytics

    Advertising

    6
    Facebook PixelMid-Market
    Twitter/X AdsMid-Market
    LinkedIn AdsEnterprise
    Pinterest AdsMid-Market
    Microsoft AdsEnterprise
    Snapchat PixelMid-Market

    Ad platforms and retargeting pixels

    Privacy & Cookies

    1
    CookieYesSMB

    Cookie consent and privacy compliance tools

    3

    Categories

    10

    Total Tools

    2

    Enterprise

    4

    Mid-Market

    Assessment: Sophisticated marketing and sales technology infrastructure

    Sponsored

    Scripts & Styles

    30 Resources

    20
    Scripts
    10
    Styles
    19
    Async
    0
    Defer

    Top Script Sources

    connect.facebook.net(7)s.pinimg.com(2)googletagmanager.com(2)tr.snapchat.com(1)clarity.ms(1)

    Website Identity

    IVN Nederland

    IVN Nederland

    Organization

    IVN Natuureducatie laat kinderen en volwassenen beleven hoe leuk, gezond én belangrijk natuur is. Doe je mee? Bezoek onze website.

    +31 20 622 81 15
    www.ivn.nl/
    30 years old

    Postbus 2023, Amsterdam

    1000 HC, Amsterdam

    Location detected: 🇳🇱 Netherlandsvia phone
    Registrar.eu📧 Microsoft 365nl-NL

    Sponsored

    Last analyzed: 30 Apr 2026 at 03:50

    Historical Analysis & Change Tracking