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walburgpers.nl

https://walburgpers.nl· First analyzed 29 May 2026· Updated 29 May 2026
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walburgpers.nl
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Mobile screenshot of walburgpers.nl
Mobile

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Hosting Provider

XL BV

IP Address

83.96.201.73

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇳🇱 Rotterdam, The Netherlands

ASN

AS35470

Organization

XL BV

Server

Nginx

Nameservers

ns1.argewebhosting.eu.ns2.argewebhosting.com.ns3.argewebhosting.nl.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
406 ms10%
Speed Index
528 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
227 KB
31 requests

Image Optimization

Responsive
0–49
50–89
90–100

Architecture Stack

Headless
⚙️ SSR
Decoupled
API
Data Source
Headless CMS
Sanity
Infrastructure
Hosting
XL BV

Progressive Web App

Web ManifestApple Touch IconTheme Color

Detected API Sources

https://cdn.sanity.io/images/f...https://cdn.sanity.io/images/f...

Technology Stack

6 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Email Marketing

1
Mailchimp

Web Servers

1
Nginx

SEO Analysis

C60/100
17
9
0
Meta Tags12/15
Content6/12
Headings4/8
Technical15/25
E-E-A-T0/7
Images5/7
Links5/5
URL5/5
Social1/5
Freshness0/4
Mobile4/4
Indexability3/3
W
walburgpers.nlwalburgpers.nl

Uitgeversmaatschappij Walburg Pers

Walburg Pers geeft toegankelijke en gespecialiseerde boeken uit op het gebied van geschiedenis, recht, kunst en cultuur.

Title Length34 chars

Recommended: 50-60 chars (~209px / 580px)

Description Length120 chars

Recommended: 120-160 chars

Issues (0)

    9 issues found

    Upgrade to view details

    Crawlability

    Sitemap
    robots.txt

    2 rules

    Allows all crawlers

    Local SEO

    Local Search Readiness

    8/100
    Poor
    3 12 2

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

    Sponsored

    AI & LLM Readiness

    F32/100
    Bot Access
    20/25
    Machine Read.
    7/25
    Schema Data
    0/25
    Citation
    5/25

    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
    navheader/footer
    Text ratio:4%
    Words:175
    Token eff.:Too Short
    Depth:2/5

    Structured Data

    Microdata

    Citation Readiness

    Opening Summary
    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 (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.
    A
    84/100
    13
    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
    18/20
    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
    7/15
    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.
    53/100
    A+
    28 mg
    CO₂e / view
    227.1 KB
    Page Weight
    95%
    Cleaner Than
    New Visitor
    32 mg
    vs
    Returning (cached)
    16 mg
    Annual (10K/mo)
    3.4 kg
    Emission Segments
    Data Center
    6 mg
    Network
    7 mg
    Device
    15 mg
    Resource Breakdown
    JavaScript
    75.8 KB
    Images
    28.2 KB
    CSS
    117.6 KB
    HTML
    5.5 KB
    Green Hosting Not Verified
    XL BV
    5 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    A

    Security Score

    86%Very Good
    Interactive

    HTTPS

    No WAF

    85d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.2

    HTTP Protocol

    HTTP/2

    Valid From

    24.05.2026

    Valid Until

    22.08.2026

    Subject Alternative Names (2)

    walburgpers.nlwww.walburgpers.nl

    SHA-256 Fingerprint

    4E:F2:16:71:AA:42:47:7A:02:0C:26:50:05:A9:B5:CF:86:64:38:D8...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    content-encoding
    📦 Gzip(gzip)
    content-security-policy
    default-src 'self'; script-src 'self' https://www.google-ana...
    content-type
    text/html;charset=utf-8
    date
    Fri, 29 May 2026 00:56:39 GMT
    permissions-policy
    geolocation=(),midi=(),sync-xhr=(),microphone=(),camera=(),m...
    referrer-policy
    strict-origin-when-cross-origin
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    75

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (1)

    walburgpers-nl.mail.protection.outlook.com

    Domain Information

    walburgpers.nl

    Domain Age
    26y 8m

    Created

    25.09.1999

    Last Updated

    06.02.2024

    Registrar

    Realtime Register

    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
    62/100
    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
    3 recommendations
    • •Mobile compatibility recommendation preview...
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    Typography & Readability

    Myriad

    WCAG Partial
    69/100
    Readability
    /30
    24/30

    20px · LH 1.50

    Hierarchy
    /20
    13/20

    1x ratio

    WCAG
    /25
    19/25

    1:1 min contrast

    Performance
    /25
    13/25

    1 font · 3 req

    Heading Font

    Myriad

    Sans20px

    Body Font

    Myriad

    Sans20px

    Contrast Ratio

    1:1

    1 issue

    Reading Comfort

    Single Font Family

    left aligned
    20px
    h1

    ✅ Excellent readability: 20px body text is ideal for all devices.

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

    ❌ Very complex text: Flesch score 12/100. Consider shorter sentences and simpler words.

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

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

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

    Buy on MyFontsFlesch 12

    Color Palette

    7 unique colors
    3.02:1 AA Large Light
    #ffffff
    Primary· 72.39999999999999%
    #869897
    Secondary· 4.6%
    #473d37
    Text· 6%
    #76afc0
    Secondary· 4.8%
    #ca9e97
    Secondary· 4.7%

    Business & Marketing Stack

    3 Tools Detected

    Advanced

    Marketing Automation

    1
    MailchimpSMB

    Email marketing and automation platforms

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    2

    Categories

    3

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Sponsored

    Scripts & Styles

    5 Resources

    4
    Scripts
    1
    Styles
    3
    Async
    0
    Defer

    Top Script Sources

    googletagmanager.com(2)google-analytics.com(1)local(1)

    Website Identity

    walburgpers.nl

    [email protected]
    26 years old
    Location detected: 🇳🇱 Netherlandsvia tld
    Realtime Register📧 Microsoft 365nl

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    Last analyzed: 29 May 2026 at 00:56

    Historical Analysis & Change Tracking

    walburgpers.nl Technology Stack - Built With Tailwind CSS, Google Analytics, Google Analytics 4, Google Tag Manager, Mailchimp | StackOptic | StackOptic