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koentact.nl

https://koentact.nl· First analyzed 02 Jun 2026· Updated 02 Jun 2026
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koentact.nl
Desktop screenshot of koentact.nl
Mobile screenshot of koentact.nl
Mobile

Sponsored

Hosting Provider

AMEN Networks

IP Address

85.10.135.83

Site Location

🇳🇱 Amsterdam, Netherlandsvia schema_nap

Server Location

🇫🇷 Paris, France

ASN

AS20857

Server

Nginx

Nameservers

ns02.hostnet.nl.ns01.hostnet.nl.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
829 ms10%
Speed Index
1.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
910 KB
56 requests

Image Optimization

Lazy LoadWebP
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms
Koentactv10.0.3.3
by Expat Audience
View Theme

Technology Stack

15 Technologies Detected

Plugins

6
Popup Maker
Easy Bootstrap Shortcodes
Custom Facebook Feed ProInstagram Feed
Yoast SEO
Elementor

CSS Frameworks

2
Tailwind CSS
Bootstrap

Analytics

2
Google Analytics
Matomo

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

Web Servers

1
Nginxv1.24.0

Security

1
reCAPTCHA

SEO Analysis

A84/100
24
5
0
Meta Tags14/15
Content10/12
Headings8/8
Technical24/25
E-E-A-T0/7
Images5/7
Links4/5
URL5/5
Social4/5
Freshness4/4
Mobile3/4
Indexability3/3
K
koentact.nlkoentact.nl

Learn Dutch the fun way in Amsterdam at Koentact!

Koentact is a Dutch Language School in Amsterdam. We offer Dutch Intensive and semi-intensive group courses, individual courses and corporate training.

Title Length49 chars

Recommended: 50-60 chars (~307px / 580px)

Description Length151 chars

Recommended: 120-160 chars

Issues (0)

    5 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    3 URLs

    3 sub-sitemaps

    robots.txt

    4 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    46/100
    Fair
    13 6 1

    Sponsored

    AI & LLM Readiness

    D49/100
    Bot Access
    20/25
    Machine Read.
    7/25
    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
    Text ratio:6%
    Words:2,224
    Token eff.:Optimal

    Structured Data

    4 JSON-LD
    Person×1.3WebSiteBreadcrumbListSearchAction
    sameAs entity links

    Citation Readiness

    Opening Summary139w
    Descriptive Headingsavg 4.7w
    Canonical URL
    Open Graph2/3
    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.
    C
    67/100
    11
    Passed
    4
    Critical
    1
    Warnings
    Images & Alt Text
    13/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    17/20
    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
    11/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    6/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    3 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.
    66/100
    B
    92 mg
    CO₂e / view
    909.9 KB
    Page Weight
    80%
    Cleaner Than
    New Visitor
    105 mg
    vs
    Returning (cached)
    53 mg
    Annual (10K/mo)
    11.0 kg
    Emission Segments
    Data Center
    5 mg
    Network
    27 mg
    Device
    60 mg
    Resource Breakdown
    JavaScript
    157.1 KB
    Images
    302.5 KB
    CSS
    420.4 KB
    Fonts
    2.2 KB
    HTML
    27.0 KB
    Other
    658 B
    Green Hosting Verified
    Transip
    GWF Verified
    4 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    D

    Security Score

    56%Poor
    Interactive

    HTTPS

    No WAF

    61d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    ECDSA (secp256r1) (256 bit)

    Signature

    ECDSA with SHA-384

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/1.1

    Valid From

    04.05.2026

    Valid Until

    02.08.2026

    Subject Alternative Names (2)

    koentact.nlwww.koentact.nl

    SHA-256 Fingerprint

    6F:99:10:27:22:B3:CB:E9:28:CB:B6:86:6F:BC:D9:DD:64:88:C8:02...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    ⚪ Custom(must-revalidate)
    connection
    keep-alive
    content-encoding
    📦 Gzip(gzip)
    content-security-policy
    frame-ancestors 'self'
    content-type
    text/html; charset=UTF-8
    date
    Tue, 02 Jun 2026 06:14:00 GMT
    Good Warning Issue

    Email Infrastructure

    Google Workspace

    Score

    65

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (5)

    aspmx3.googlemail.com
    alt1.aspmx.l.google.com
    aspmx2.googlemail.com
    alt2.aspmx.l.google.com

    +1 more

    Domain Information

    koentact.nl

    Domain Age
    17y 1m

    Created

    01.05.2009

    Last Updated

    14.04.2022

    Registrar

    Hostnet B.V.

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookiebot

    Cookie Consent Banner
    Cookiebot
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: Cookiebot
    Privacy policy page linked
    Data Protection Officer mentioned
    Legitimate interest basis 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
    74/100
    Mobile Friendly24 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
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Signika + Open Sans

    WCAG Partial
    67/100
    Readability
    /30
    28/30

    21px · LH 1.40

    Hierarchy
    /20
    12/20

    1.71x ratio · ✓ H1→H6

    WCAG
    /25
    16/25

    1.98:1 min contrast

    Performance
    /25
    11/25

    3 fonts · 3 req

    Heading Font

    Signika

    Sans36px

    Body Font

    Open Sans

    Sans21px

    Contrast Ratio

    1.98:1

    15 issues

    Reading Comfort

    ~39 CPL

    Narrow lines
    36px
    h1
    30px
    h2
    24px
    h3
    21px
    p

    ✅ Excellent readability: 21px body text is ideal for all devices.

    ✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

    ✅ Easy to read: Flesch score 70/100 — accessible to general audiences.

    ⚠️ Partial contrast: 15 elements below WCAG AA threshold (min 2.0:1).

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

    ✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

    GGoogle FontsFluid Type (rem)Flesch 70

    Color Palette

    11 unique colors
    Light
    #ffffff
    Background· 33%
    #eff2e9
    Secondary· 11.700000000000001%
    #8fc23a
    Primary· 8.4%
    #673e2c
    Secondary· 6.7%
    #151310
    Text· 6.6%
    #7d5a44
    Secondary· 6.3%
    #b8937b
    Secondary· 5.7%
    #2d2d23
    Text· 5.5%

    Business & Marketing Stack

    3 Tools Detected

    Advanced

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    Privacy & Cookies

    1
    CookiebotMid-Market

    Cookie consent and privacy compliance tools

    2

    Categories

    3

    Total Tools

    0

    Enterprise

    1

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Sponsored

    Scripts & Styles

    18 Resources

    12
    Scripts
    6
    Styles
    3
    Async
    1
    Defer

    Top Script Sources

    koentact.nl(6)consent.cookiebot.com(2)gstatic.com(1)consentcdn.cookiebot.com(1)google.com(1)

    Website Identity

    Koentact

    Koentact

    EducationalOrganization

    Dutch language school in Amsterdam offering group, intensive, conversation, business and private Dutch courses since 2009.

    +310207371616
    17 years old

    Elandsgracht 70, Amsterdam

    1016TX, Amsterdam

    NL

    Location detected: 🇳🇱 Netherlands, Amsterdamvia schema_nap
    Hostnet B.V.📧 Google Workspaceen-USEst. 2009

    Sponsored

    Last analyzed: 02 Jun 2026 at 06:14

    Historical Analysis & Change Tracking

    koentact.nl Technology Stack - Built With Tailwind CSS, Font Awesome, Google Fonts, Google Analytics, Google Tag Manager | StackOptic | StackOptic