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athenaeumscheltema.nl

https://athenaeumscheltema.nl· First analyzed 04 May 2026· Updated 04 May 2026
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athenaeumscheltema.nl
Desktop screenshot of athenaeumscheltema.nl
Mobile screenshot of athenaeumscheltema.nl
Mobile

Sponsored

Hosting Provider

Cloudflare
cloudflare.com

IP Address

104.26.4.20

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

dante.ns.cloudflare.com.jasmine.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
382 ms10%
Speed Index
497 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
113 KB
85 requests

Image Optimization

Lazy LoadWebP
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Ghost

Technology Stack

10 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Facebook Pixel

Fonts

2
Adobe Fonts (Typekit)Adobe Fonts

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Advertising

1
Microsoft Advertising

CDN

1
Cloudflare

Frameworks

1
ASP.NET

SEO Analysis

B73/100
20
7
0
Meta Tags15/15
Content10/12
Headings6/8
Technical17/25
E-E-A-T3/7
Images6/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile3/4
Indexability3/3
A
athenaeumscheltema.nlathenaeumscheltema.nl

Athenaeum | Scheltema, boekhandels in Amsterdam en Haarlem

Athenaeum | Scheltema, de online boekhandel voor lezend Nederland, met 8.000.000 boeken & tijdschriften, recensies, tips & nieuws, en 100 boekverkopers.

Title Length58 chars

Recommended: 50-60 chars (~360px / 580px)

Description Length152 chars

Recommended: 120-160 chars

Issues (0)

    7 issues found

    Upgrade to view details

    Crawlability

    Sitemap
    robots.txt

    33 rules

    Local SEO

    Local Search Readiness

    7/100
    Poor
    2 14 2

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

    Sponsored

    AI & LLM Readiness

    F33/100
    Bot Access
    20/25
    Machine Read.
    4/25
    Schema Data
    0/25
    Citation
    9/25

    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:4%
    Words:3,723
    Token eff.:Poor Structure
    Sections/1K:0.8
    Depth:1/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary
    Descriptive Headingsavg 6w
    Canonical URL
    Open Graph0/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (11)
    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.
    C
    69/100
    9
    Passed
    3
    Critical
    2
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    13/20
    Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
    Forms & Inputs
    10/15
    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
    2/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    3 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.
    76/100
    A+
    11 mg
    CO₂e / view
    113.1 KB
    Page Weight
    95%
    Cleaner Than
    New Visitor
    13 mg
    vs
    Returning (cached)
    7 mg
    Annual (10K/mo)
    1.4 kg
    Emission Segments
    Data Center
    <0.001 g
    Network
    3 mg
    Device
    8 mg
    Resource Breakdown
    Images
    17.1 KB
    HTML
    93.1 KB
    Other
    3.0 KB
    Green Hosting Verified
    Cloudflare
    GWF Verified
    4 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    D

    Security Score

    41%Poor
    Interactive

    HTTPS

    WAF

    79d

    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

    Valid From

    23.04.2026

    Valid Until

    22.07.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    athenaeumscheltema.nl*.athenaeumscheltema.nl

    SHA-256 Fingerprint

    B8:8F:C3:B9:D6:88:36:CF:64:4C:E2:41:E4:B0:4C:9C:3E:11:3F:61...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cf-cache-status
    DYNAMIC
    cf-ray🇫🇷 Paris
    9f68f0f32d2f0494-CDG
    content-encoding
    ⚡ Brotli(br)
    content-type
    text/html; charset=utf-8
    date
    Mon, 04 May 2026 16:39:23 GMT
    nel
    {"report_to":"cf-nel","success_fraction":0.0,"max_age":60480...
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    90

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (1)

    athenaeumscheltema-nl.mail.protection.outlook.com

    Domain Information

    athenaeumscheltema.nl

    Domain Age
    2 years

    Created

    03.05.2024

    Last Updated

    06.01.2025

    Registrar

    Realtime Register

    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

    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 Friendly9 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=1.0, maximum-scale=1.0, user-scalable=no
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    calabri

    WCAG Partial
    64/100
    Readability
    /30
    27/30

    16px · LH 1.50

    Hierarchy
    /20
    15/20

    1.75x ratio

    WCAG
    /25
    13/25

    1.12:1 min contrast

    Performance
    /25
    9/25

    4 fonts · 1 req

    Heading Font

    calabri

    Sans28px

    Body Font

    calabri

    Sans16px

    Contrast Ratio

    1.12:1

    2 issues

    Reading Comfort

    ~40 CPL

    Narrow lines
    28px
    h1
    24px
    h2
    40px
    h3
    16px
    h4
    16px
    p
    Minor Second
    Scale

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

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

    ⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 1.1:1).

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

    ❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

    ⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

    AAdobe FontsBuy on MyFonts

    Color Palette

    7 unique colors
    2.59:1 Fail Light
    #7e7e7e
    Other· 33.4%
    #d2ceca
    Border· 3.8%
    #f6efe7
    Primary· 20.2%
    #4f5160
    Secondary· 19.4%

    Business & Marketing Stack

    4 Tools Detected

    Advanced

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    Advertising

    2
    Facebook PixelMid-Market
    Microsoft AdsEnterprise

    Ad platforms and retargeting pixels

    2

    Categories

    4

    Total Tools

    1

    Enterprise

    1

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Sponsored

    Scripts & Styles

    18 Resources

    13
    Scripts
    5
    Styles
    11
    Async
    0
    Defer

    Top Script Sources

    googletagmanager.com(8)bat.bing.com(2)local(2)connect.facebook.net(1)

    Website Identity

    athenaeumscheltema.nl

    2 years old
    Location detected: 🇳🇱 Netherlandsvia tld
    Realtime Register📧 Microsoft 365nl-NL

    Sponsored

    Last analyzed: 04 May 2026 at 16:40

    Historical Analysis & Change Tracking