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historischdelfshavenrotterdam.nl

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

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Hosting Provider

Cloudflare
cloudflare.com

IP Address

172.67.191.54

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

gina.ns.cloudflare.com.west.ns.cloudflare.com.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
809 ms10%
Speed Index
1.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
137 KB
15 requests

Image Optimization

Lazy LoadWebP
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Cloudflare
CDN
Cloudflare

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

3 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

CDN

1
Cloudflare

SEO Analysis

A+92/100
30
1
0
Meta Tags14/15
Content12/12
Headings8/8
Technical25/25
E-E-A-T7/7
Images6/7
Links3/5
URL5/5
Social5/5
Freshness2/4
Mobile2/4
Indexability3/3
H
historischdelfshavenrotterdam.nlhistorischdelfshavenrotterdam.nl

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Title Length65 chars

Recommended: 50-60 chars (~392px / 580px)

Description Length160 chars

Recommended: 120-160 chars

Issues (0)

    1 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    10 URLs

    robots.txt

    17 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    24/100
    Needs Work
    7 11

    Sponsored

    AI & LLM Readiness

    B73/100
    Bot Access
    18/25
    Machine Read.
    16/25
    Schema Data
    17/25
    Citation
    22/25

    AI Bot Access

    11/14 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:26%
    Words:2,002
    Token eff.:Optimal
    Sections/1K:9
    Depth:1/5

    Structured Data

    17 JSON-LD
    FAQPage×1.5Article×1.2Person×1.3(min)Organization×1.1WebSiteBreadcrumbListSearchAction

    Citation Readiness

    Opening Summary48w
    Descriptive Headingsavg 7.3w
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (4)
    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
    83/100
    12
    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
    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
    9/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    4/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    1 recommendation
    • •Accessibility recommendation preview...
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    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.
    78/100
    A+
    14 mg
    CO₂e / view
    137.0 KB
    Page Weight
    95%
    Cleaner Than
    New Visitor
    16 mg
    vs
    Returning (cached)
    8 mg
    Annual (10K/mo)
    1.7 kg
    Emission Segments
    Data Center
    <0.001 g
    Network
    4 mg
    Device
    9 mg
    Resource Breakdown
    JavaScript
    7.3 KB
    Images
    109.9 KB
    CSS
    5.6 KB
    Fonts
    1.1 KB
    HTML
    13.1 KB
    Green Hosting Verified
    Cloudflare
    GWF Verified
    4 recommendations
    • •Carbon footprint recommendation preview...
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    B

    Security Score

    71%Good
    Static / Informational

    HTTPS

    WAF

    64d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Google Trust Services

    Key Algorithm

    ECDSA (secp256r1) (256 bit)

    Signature

    ECDSA with SHA-256

    TLS Version

    TLSv1.2

    HTTP Protocol

    HTTP/2+H3

    Valid From

    18.04.2026

    Valid Until

    17.07.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    historischdelfshavenrotterdam.nl*.historischdelfshavenrotterdam.nl

    SHA-256 Fingerprint

    E1:A9:4B:CA:95:4F:F2:95:0C:10:94:37:0B:E1:26:CE:F1:E7:1E:E5...

    Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    alt-svc
    h3=":443"; ma=86400
    cache-control
    🟣 Private(private, must-revalidate)
    cf-cache-status
    DYNAMIC
    cf-ray
    9fb7a99e1d554d0d-BOS
    content-encoding
    zstd
    content-type
    text/html; charset=utf-8
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    0

    SPF
    DKIM
    DMARC

    Domain Information

    historischdelfshavenrotterdam.nl

    Domain Age
    11 months

    Created

    29.05.2025

    Last Updated

    21.12.2025

    Registrar

    Registrar.eu

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    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.
    C
    63/100
    Mobile Friendly5 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...
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    Typography & Readability

    Rubik

    WCAG Partial
    80/100
    Readability
    /30
    23/30

    16px · LH 1.40

    Hierarchy
    /20
    20/20

    3x ratio · ✓ H1→H6

    WCAG
    /25
    17/25

    1:1 min contrast

    Performance
    /25
    20/25

    1 font · 1 req

    Heading Font

    Rubik

    Sans48px

    Body Font

    Rubik

    Sans16px

    Contrast Ratio

    1:1

    9 issues

    Reading Comfort

    ~39 CPL

    Narrow lines
    48px
    h1
    24px
    h2
    19px
    h3
    16px
    p

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

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

    ⚠️ Hard to read: Flesch score 41/100. Simplify sentences for wider reach.

    ⚠️ Partial contrast: 9 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 3.0x larger than body text.

    GGoogle FontsFlesch 41

    Color Palette

    6 unique colors
    Light
    #2d147a
    Primary· 44.800000000000004%
    #110930
    Accent· 32.3%
    #686b97
    Secondary· 6.6%
    #86d6b8
    Secondary· 6.4%
    #1a0c4b
    Accent· 5.7%

    Business & Marketing Stack

    1 Tools Detected

    Growing

    Behavior Analytics

    1
    Google AnalyticsFree

    User behavior and product analytics

    1

    Categories

    1

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    5 Resources

    3
    Scripts
    2
    Styles
    0
    Async
    3
    Defer

    Top Script Sources

    historischdelfshavenrotterdam.nl(2)static.cloudflareinsights.com(1)

    Website Identity

    Lalabet casino

    Organization

    Lalabet biedt spannende snelle winsten! Duik in live spellen en slots van Lala Bet met jackpots met snelle uitbetalingen. Haal hier je 200%+150FS promotiecode!

    350 days old
    Location detected: 🇳🇱 Netherlandsvia tld
    Registrar.eunl

    Sponsored

    Last analyzed: 14 May 2026 at 05:57

    Historical Analysis & Change Tracking