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onvz.nl

https://onvz.nl· First analyzed 14 May 2026· Updated 14 May 2026
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onvz.nl
Desktop screenshot of onvz.nl
Mobile screenshot of onvz.nl
Mobile

Sponsored

Hosting Provider

Episerver AB

IP Address

217.114.94.2

Site Location

🇳🇱 Netherlandsvia phone

Server Location

🇸🇪 Stockholm, Sweden

ASN

AS30811

Organization

Episerver AB

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns1.transip.nl.ns2.transip.eu.ns0.transip.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
669 ms10%
Speed Index
870 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
572 KB
26 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Episerver AB
CDN
Cloudflare

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

4 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Analytics

1
Google Analytics

Tag Managers

1
Google Tag Manager

CDN

1
Cloudflare

SEO Analysis

B72/100
22
6
0
Meta Tags9/15
Content6/12
Headings6/8
Technical23/25
E-E-A-T2/7
Images6/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
O
onvz.nlonvz.nl

ONVZ is er voor jou | ONVZ

Kies kwaliteit, kies ONVZ. Met ruime zorgkeuze en zeer ruime vergoedingen behoort ONVZ tot de best gewaardeerde zorgverzekeraars. Ontdek wat bij jou past.

Title Length26 chars

Recommended: 50-60 chars (~162px / 580px)

Description Length154 chars

Recommended: 120-160 chars

Issues (0)

    6 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    254 URLs

    robots.txt

    11 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    27/100
    Needs Work
    7 11

    Sponsored

    AI & LLM Readiness

    D42/100
    Bot Access
    20/25
    Machine Read.
    8/25
    Schema Data
    3/25
    Citation
    11/25

    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:2%
    Words:2,520
    Token eff.:Optimal
    Depth:1/5

    Structured Data

    1 JSON-LD
    Organization×1.1
    sameAs entity links

    Citation Readiness

    Opening Summary17w
    Descriptive Headings
    Canonical URL
    Open Graph3/3
    Twitter Card0/3
    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
    79/100
    11
    Passed
    2
    Critical
    0
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    10/20
    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
    6/15
    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.
    51/100
    A
    71 mg
    CO₂e / view
    572.3 KB
    Page Weight
    80%
    Cleaner Than
    New Visitor
    81 mg
    vs
    Returning (cached)
    40 mg
    Annual (10K/mo)
    8.5 kg
    Emission Segments
    Data Center
    16 mg
    Network
    17 mg
    Device
    38 mg
    Resource Breakdown
    JavaScript
    49.6 KB
    Images
    670 B
    CSS
    452.4 KB
    HTML
    69.6 KB
    Green Hosting Not Verified
    Episerver AB
    4 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    A+

    Security Score

    91%Excellent
    Interactive

    HTTPS

    WAF

    59d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Google Trust Services

    Key Algorithm

    ECDSA (secp256r1) (256 bit)

    Signature

    ECDSA with SHA-256

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2+H3

    Valid From

    14.04.2026

    Valid Until

    13.07.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (1)

    www.onvz.nl

    SHA-256 Fingerprint

    F7:95:56:AD:6E:54:0E:C9:16:89:9B:AF:F3:2E:F5:91:8B:80:5D:BE...

    Upgrade to view header details

    HTTP Headers

    Developer Console

    alt-svc
    h3=":443"; ma=86400
    cf-cache-status
    DYNAMIC
    cf-ray
    9fbca5c5e89b300b-SJC
    content-encoding
    📦 Gzip(gzip)
    content-security-policy
    default-src 'self' data: https://www.google-analytics.com *....
    content-type
    text/html; charset=utf-8
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    100

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (1)

    onvz-nl.w-v1.mx.microsoft

    Domain Information

    onvz.nl

    Domain Age
    28y 6m

    Created

    21.11.1997

    Last Updated

    03.10.2024

    Registrar

    team.blue nl B.V.

    DNSSEC
    Not Enabled

    Privacy & Compliance

    OneTrust

    Cookie Consent Banner
    OneTrust
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: OneTrust
    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.
    C
    68/100
    Mobile Friendly
    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
    3 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Nunito Sans

    WCAG AA
    68/100
    Readability
    /30
    23/30

    16px · LH 1.50

    Hierarchy
    /20
    15/20

    1.25x ratio · ✓ H1→H6

    WCAG
    /25
    17/25

    6.23:1 min contrast

    Performance
    /25
    13/25

    1 font · 4 req

    Heading Font

    Nunito Sans

    Sans20px

    Body Font

    Nunito Sans

    Sans16px

    Contrast Ratio

    6.23:1

    WCAG AA (≥4.5:1)

    Reading Comfort

    ~35 CPL

    Narrow lines
    20px
    h1
    44px
    h2
    32px
    h3
    18px
    h4
    16px
    p
    Minor Third
    Scale

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

    ✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

    ⚠️ Hard to read: Flesch score 39/100. Simplify sentences for wider reach.

    ✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 6.2:1).

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

    ⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

    Buy on MyFontsFlesch 39

    Color Palette

    10 unique colors
    Dark
    #44413c
    Other· 24.3%
    #fcfbf7
    Primary· 13.5%
    #b9c9d9
    Secondary· 11.4%
    #beb3a3
    Secondary· 9.1%
    #2081aa
    Accent· 8.5%
    #a47d61
    Secondary· 7.5%
    #e1dac5
    Secondary· 7%
    #eebe4b
    Accent· 5.3%

    Business & Marketing Stack

    3 Tools Detected

    Advanced

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    Privacy & Cookies

    1
    OneTrustEnterprise

    Cookie consent and privacy compliance tools

    2

    Categories

    3

    Total Tools

    1

    Enterprise

    0

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Sponsored

    Scripts & Styles

    5 Resources

    4
    Scripts
    1
    Styles
    1
    Async
    1
    Defer

    Top Script Sources

    local(2)googletagmanager.com(1)cdn.cookielaw.org(1)

    Website Identity

    ONVZ

    ONVZ

    Organization

    ONVZ verzekert u niet alleen van de beste zorg, wij verzekeren u ook van vrije keuze. Zo bent u bij ONVZ vrij om te bepalen welke arts u consulteert en naar welk ziekenhuis u gaat. En dat is best bijzonder, want zoveel vrijheid is tegenwoordig zeker niet vanzelfsprekend. ONVZ geeft u alle ruimte om

    +31 (0)88 668 97 67
    www.onvz.nl
    28 years old
    Location detected: 🇳🇱 Netherlandsvia phone
    team.blue nl B.V.nl

    Sponsored

    Last analyzed: 14 May 2026 at 20:28

    Historical Analysis & Change Tracking