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kalender-365.nl

https://kalender-365.nl· First analyzed 22 May 2026· Updated 22 May 2026
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kalender-365.nl
Desktop screenshot of kalender-365.nl
Mobile screenshot of kalender-365.nl
Mobile

Sponsored

Hosting Provider

Flexwebhosting BV

IP Address

109.70.2.215

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇳🇱 Amsterdam, The Netherlands

ASN

AS48635

Organization

Flexwebhosting BV

Server

Apache

Nameservers

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

Performance

100

Core Web Vitals

Weight

First Contentful Paint
436 ms10%
Speed Index
567 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
581 KB
32 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Flexwebhosting BV

Technology Stack

12 Technologies Detected

Advertising

4
Google AdsGoogle AdSenseCriteoOutbrain

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
jQueryv3.5.1

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Material Icons

Fonts

1
Google Fonts

Payments

1
Square

Web Servers

1
Apache

SEO Analysis

D58/100
15
11
0
Meta Tags9/15
Content10/12
Headings6/8
Technical15/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile3/4
Indexability3/3
K
kalender-365.nlkalender-365.nl

Kalender 2026

Kalender 2026. Overzichtelijke jaarkalender van 2026, de data worden per maand getoond inclusief weeknummers. Bekijk hier de online kalender 2026.

Title Length13 chars

Recommended: 50-60 chars (~78px / 580px)

Description Length146 chars

Recommended: 120-160 chars

Issues (0)

    11 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    2,591 URLs

    robots.txt

    Local SEO

    Local Search Readiness

    10/100
    Poor
    3 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

    F37/100
    Bot Access
    20/25
    Machine Read.
    9/25
    Schema Data
    0/25
    Citation
    8/25

    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.txtinvalid
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    Text ratio:12%
    Words:8,287
    Token eff.:Excessive
    Sections/1K:0.2

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary10w
    Descriptive Headingsavg 4.7w
    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.
    B
    71/100
    11
    Passed
    4
    Critical
    0
    Warnings
    Images & Alt Text
    10/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    14/20
    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
    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.
    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.
    50/100
    A
    72 mg
    CO₂e / view
    580.8 KB
    Page Weight
    80%
    Cleaner Than
    New Visitor
    82 mg
    vs
    Returning (cached)
    41 mg
    Annual (10K/mo)
    8.6 kg
    Emission Segments
    Data Center
    16 mg
    Network
    17 mg
    Device
    39 mg
    Resource Breakdown
    JavaScript
    487.7 KB
    Images
    37.8 KB
    CSS
    41.7 KB
    Fonts
    6.2 KB
    HTML
    7.1 KB
    Other
    303 B
    Green Hosting Not Verified
    Flexwebhosting BV
    4 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    0%Critical
    Critical / Transactional

    HTTPS

    No WAF

    65d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    RSA (4096 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    27.04.2026

    Valid Until

    26.07.2026

    Subject Alternative Names (4)

    kalender-365.nlkalender365.nlwww.kalender-365.nlwww.kalender365.nl

    SHA-256 Fingerprint

    3F:3E:02:2A:C9:4D:F7:21:8D:5C:22:C8:99:C3:2D:91:CB:38:11:B7...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🟡 2 Hours(max-age=7200)
    content-encoding
    📦 Gzip(gzip)
    content-type
    text/html; charset=UTF-8
    date
    Fri, 22 May 2026 18:34:42 GMT
    etag
    fc3196f795e8c4d76773548f03c10c46
    expires
    Fri, 22 May 2026 20:11:53 GMT
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    75

    SPF
    DKIM
    DMARC

    MX Records (1)

    kalender-365.nl

    Domain Information

    kalender-365.nl

    Domain Age
    17y 2m

    Created

    26.02.2009

    Last Updated

    17.04.2023

    Registrar

    team.blue nl B.V.

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Quantcast Choice

    Cookie Consent Banner
    Quantcast Choice
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: Quantcast Choice
    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.
    B
    74/100
    Mobile Friendly20 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
    3 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Helvetica Neue + Open Sans

    WCAG Partial
    69/100
    Readability
    /30
    16/30

    12px · LH 1.33

    Hierarchy
    /20
    15/20

    3.17x ratio

    WCAG
    /25
    16/25

    1:1 min contrast

    Performance
    /25
    22/25

    System fonts

    Heading Font

    Helvetica Neue

    Sans38px

    Body Font

    Open Sans

    Sans12px

    Contrast Ratio

    1:1

    4 issues

    Reading Comfort

    ~39 CPL

    Narrow lines
    38px
    h1
    28px
    h2
    12px
    p

    ❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

    ⚠️ Tight line spacing (1.33). Increase to 1.4–1.6 for better readability.

    ⚠️ Hard to read: Flesch score 45/100. Simplify sentences for wider reach.

    ⚠️ Partial contrast: 4 elements below WCAG AA threshold (min 1.0:1).

    ⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

    ✅ Strong hierarchy: Headlines are 3.2x larger than body text.

    GGoogle FontsFlesch 45

    Color Palette

    7 unique colors
    5.74:1 AA Dark
    #666666
    Other· 63%
    #ffffff
    Background· 24.3%
    #aeb6be
    Primary· 3.5%
    #2b3743
    Secondary· 2.5%
    #4e5865
    Secondary· 2.2%
    #55667d
    Secondary· 1.8%

    Business & Marketing Stack

    2 Tools Detected

    Advanced

    Behavior Analytics

    1
    Google AnalyticsFree

    User behavior and product analytics

    Advertising

    1
    Google AdsEnterprise

    Ad platforms and retargeting pixels

    2

    Categories

    2

    Total Tools

    1

    Enterprise

    0

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Ad Networks

    Google AdSenseMedia.netSovrnPubMaticOpenXIndex Exchange

    Sponsored

    Scripts & Styles

    8 Resources

    6
    Scripts
    2
    Styles
    2
    Async
    3
    Defer

    Top Script Sources

    pagead2.googlesyndication.com(2)fundingchoicesmessages.google.com(2)ajax.googleapis.com(1)local(1)

    Website Identity

    kalender-365.nl

    17 years old
    Location detected: 🇳🇱 Netherlandsvia tld
    team.blue nl B.V.nl

    Sponsored

    Last analyzed: 22 May 2026 at 18:34

    Historical Analysis & Change Tracking