Back to Search
cz.nl favicon

cz.nl

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

Sponsored

Hosting Provider

KPN B.V

IP Address

194.151.60.61

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇳🇱 Amsterdam, Netherlands

ASN

AS1136

Server

Kestrel

Nameservers

ns1.kpn.net.ns11.kpn.net.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
792 ms10%
Speed Index
1.0 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.1 MB
43 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Ghost

Technology Stack

7 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Matomo

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Tag Managers

1
Google Tag Manager

Other

1
VWO

SEO Analysis

B71/100
19
8
0
Meta Tags12/15
Content10/12
Headings8/8
Technical19/25
E-E-A-T2/7
Images4/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile3/4
Indexability3/3
C
cz.nlcz.nl

Zorgverzekering van CZ: ruime keuze en gratis zorgadvies - CZ - CZ

Ruime keuze aan zorgverzekeringen, scherpe premie, hulp bij het regelen van zorg en eenvoudig online declareren. Bekijk alle voordelen van CZ en stap over.

Title Length66 chars

Recommended: 50-60 chars (~401px / 580px)

Description Length155 chars

Recommended: 120-160 chars

Issues (0)

    8 issues found

    Upgrade to view details

    Crawlability

    Sitemap
    robots.txt

    4 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    17/100
    Poor
    5 12 1

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

    Sponsored

    AI & LLM Readiness

    F26/100
    Bot Access
    20/25
    Machine Read.
    1/25
    Schema Data
    1/25
    Citation
    4/25

    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:9%
    Words:3,694
    Token eff.:Poor Structure

    Structured Data

    Microdata
    Organization×1.1(min)microdata

    Citation Readiness

    Opening Summary167w
    Descriptive Headings
    Canonical URL
    Open Graph0/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (12)
    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
    89/100
    15
    Passed
    1
    Critical
    0
    Warnings
    Images & Alt Text
    20/20
    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
    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
    15/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    7/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

    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.
    47/100
    B
    139 mg
    CO₂e / view
    1.1 MB
    Page Weight
    70%
    Cleaner Than
    New Visitor
    159 mg
    vs
    Returning (cached)
    80 mg
    Annual (10K/mo)
    16.7 kg
    Emission Segments
    Data Center
    31 mg
    Network
    33 mg
    Device
    75 mg
    Resource Breakdown
    JavaScript
    190.1 KB
    Images
    391.7 KB
    CSS
    340.3 KB
    Fonts
    164.8 KB
    HTML
    10.1 KB
    Other
    28.6 KB
    Green Hosting Not Verified
    KPN B.V
    5 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    A

    Security Score

    81%Very Good
    Interactive

    HTTPS

    No WAF

    172d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Trust Provider B.V.

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/1.1

    Valid From

    07.04.2026

    Valid Until

    22.10.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (6)

    www.cz.nlcdstatic-sc.cz.nlcz.nlczdirect.cz.nlmijnczzakelijk.cz.nlwww.cz-zorgkantoor.nl

    SHA-256 Fingerprint

    19:EE:CF:C6:D6:04:B6:79:85:71:43:14:D9:F8:3F:62:E9:05:C9:1C...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🟡 600s(must-revalidate, max-age=600)
    connection
    keep-alive
    content-encoding
    📦 Gzip(gzip)
    content-language
    nl-NL
    content-length
    10026
    content-security-policy
    frame-ancestors 'self';
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    100

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (1)

    cz-nl.mail.protection.outlook.com

    Domain Information

    cz.nl

    Domain Age
    28y 6m

    Created

    17.10.1997

    Last Updated

    24.08.2020

    Registrar

    KPN 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
    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.
    C
    68/100
    Mobile Friendly26 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,shrink-to-fit=no
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    TheMix B4 + TheSans B4

    WCAG Partial
    73/100
    Readability
    /30
    25/30

    18px · LH 1.56

    Hierarchy
    /20
    18/20

    2.33x ratio · ✓ H1→H6

    WCAG
    /25
    17/25

    1:1 min contrast

    Performance
    /25
    13/25

    2 fonts · 4 req

    Heading Font

    TheMix B4

    Sans42px

    Body Font

    TheSans B4

    Sans18px

    Contrast Ratio

    1:1

    6 issues

    Reading Comfort

    ~35 CPL

    Narrow lines
    42px
    h1
    32px
    h2
    26px
    h3
    18px
    p

    ✅ Excellent readability: 18px body text is ideal for all devices.

    ✅ Optimal line spacing: 1.56 ratio (ideal range 1.4–1.6).

    ⚠️ Partial contrast: 6 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 2.3x larger than body text.

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

    Buy on MyFontsFluid Type (rem)Flesch 60

    Color Palette

    9 unique colors
    17.39:1 AAA Light
    #ffffff
    Background· 29.3%
    #1b1a18
    Text· 4.9%
    #000000
    Primary· 0%
    #371b14
    Secondary· 11.7%
    #503932
    Secondary· 0.4%

    Business & Marketing Stack

    4 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

    A/B Testing & Optimization

    1
    VWO (Visual Website Optimizer)Mid-Market

    Experimentation and conversion optimization

    3

    Categories

    4

    Total Tools

    0

    Enterprise

    2

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Sponsored

    Scripts & Styles

    12 Resources

    11
    Scripts
    1
    Styles
    5
    Async
    1
    Defer

    Top Script Sources

    dev.visualwebsiteoptimizer.com(3)consent.cookiebot.com(2)local(2)czgroep.containers.piwik.pro(1)inzicht.cz.nl(1)

    Website Identity

    cz.nl

    28 years old
    Location detected: 🇳🇱 Netherlandsvia tld
    KPN B.V.📧 Microsoft 365nl-NL

    Social Profiles

    Facebook

    Sponsored

    Last analyzed: 03 May 2026 at 08:48

    Historical Analysis & Change Tracking

    cz.nl Technology Stack - Built With Tailwind CSS, Font Awesome, Google Analytics, Google Analytics 4, Google Tag Manager | StackOptic | StackOptic