airbornemuseum.nl

https://airbornemuseum.nl· First analyzed 27 May 2026· Updated 27 May 2026

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airbornemuseum.nl

Mobile

Sponsored

Hosting Provider

Hostnet B.V.

IP Address

185.85.18.252

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇳🇱 Amsterdam, The Netherlands

ASN

AS197902

Organization

Hostnet B.V.

Server

Nginx

Nameservers

ns02.hostnet.nl.ns01.hostnet.nl.

Performance

Core Web Vitals

Weight

First Contentful Paint

979 ms10%

Speed Index

1.3 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

4.4 MB

57 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

Technology Stack

17 Technologies Detected

Libraries

Analytics

Plugins

Frameworks

UI Components

Other

CSS Frameworks

Icon Libraries

Fonts

Tag Managers

Web Servers

Languages

Security

SEO Analysis

A84/100

Meta Tags15/15

Content10/12

Headings8/8

Technical23/25

E-E-A-T2/7

Images1/7

Links5/5

URL5/5

Social4/5

Freshness4/4

Mobile4/4

Indexability3/3

airbornemuseum.nlairbornemuseum.nl

Airborne Museum Hartenstein – Ontdek de Slag om Arnhem

Ontdek de wereldberoemde Slag om Arnhem in Villa Hartenstein, het hoofdkwartier van de Britse luchtlandingstroepen in september 1944.

Title Length54 chars

Recommended: 50-60 chars (~342px / 580px)

Description Length133 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (24/31) — critical for accessibility and SEO

6 issues found

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Crawlability

Sitemap

Type: index

9 URLs

9 sub-sitemaps

robots.txt

10 rules

Sitemap reference found

Local SEO

Local Search Readiness

20/100

Needs Work

6 11

Sponsored

AI & LLM Readiness

D54/100

Bot Access

20/25

Machine Read.

11/25

Schema Data

8/25

Citation

15/25

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:8%

Words:868

Token eff.:Optimal

Sections/1K:61.1

Depth:2/5

Structured Data

5 JSON-LD

Organization×1.1WebSiteBreadcrumbListSearchAction

sameAs entity links

Citation Readiness

Opening Summary17w

Descriptive Headingsavg 1.7w

Canonical URL

Open Graph3/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (9)

AI readiness recommendation preview...

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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.

54/100

Passed

Critical

Warnings

Images & Alt Text

3/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

17/20

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

0/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

4 recommendations

•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.

20/100

560 mg

CO₂e / view

4.4 MB

Page Weight

15%

Cleaner Than

New Visitor

640 mg

Returning (cached)

320 mg

Annual (10K/mo)

67.2 kg

Emission Segments

Data Center

125 mg

Network

134 mg

Device

301 mg

Resource Breakdown

JavaScript

206.1 KB

Images

2.9 MB

CSS

1.3 MB

Fonts

1.2 KB

HTML

11.3 KB

Green Hosting Not Verified

Hostnet B.V.

8 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

39d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

07.04.2026

Valid Until

06.07.2026

Subject Alternative Names (14)

airborneatthebridge.comairborneatthebridge.nlairbornemuseum.comairbornemuseum.euairbornemuseum.netairbornemuseum.nlairbornemuseum.orgwww.airborneatthebridge.com+6 more

SHA-256 Fingerprint

31:B0:9E:36:E4:FE:42:F8:B7:EB:40:F4:74:25:75:BB:DF:F2:CD:C7...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-length

11302

content-type

text/html; charset=UTF-8

date

Wed, 27 May 2026 14:29:14 GMT

expires

Thu, 19 Nov 1981 08:52:00 GMT

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

100

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

airbornemuseum-nl.mail.protection.outlook.com

Domain Information

airbornemuseum.nl

Domain Age

25y 7m

Created

19.10.2000

Last Updated

13.04.2022

Registrar

Hostnet B.V.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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.

54/100

Mobile Friendly1 breakpoint

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, shrink-to-fit=no

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

NoeDisplayRegular + Helvetica Neue

WCAG Partial

58/100

Readability

/30

17/30

14px · LH 1.36

Hierarchy

/20

16/20

3.57x ratio · ✓ H1→H6

WCAG

/25

15/25

1:1 min contrast

Performance

/25

10/25

System fonts

Heading Font

NoeDisplayRegular

Sans50px

Body Font

Helvetica Neue

Sans14px

Contrast Ratio

1:1

24 issues

Reading Comfort

~39 CPL

Narrow lines

50px

40px

25px

14px

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

⚠️ Tight line spacing (1.36). Increase to 1.4–1.6 for better readability.

⚠️ Hard to read: Flesch score 33/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 24 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 3.6x larger than body text.

GGoogle Fonts Buy on MyFontsFlesch 33

Color Palette

11 unique colors

Dark

#6e685e

Secondary· 15.799999999999999%

#d4ccbc

Primary· 34%

#e4edec

Secondary· 12%

#aea89c

Secondary· 4.9%

#3c282c

Secondary· 4.5%

#fbfcfc

Secondary· 3.1%

#835845

Secondary· 1.4%

#b6c8b3

Secondary· 1.4%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

17 Resources

Scripts

Styles

Async

Defer

Top Script Sources

airbornemuseum.nl(3)youtube.com(2)googletagmanager.com(2)google-analytics.com(1)gstatic.com(1)

Website Identity

Airborne Museum Hartenstein

Organization

Ontdek de wereldberoemde Slag om Arnhem in Villa Hartenstein, het hoofdkwartier van de Britse luchtlandingstroepen in september 1944.

www.airbornemuseum.nl/

25 years old

Location detected: 🇳🇱 Netherlandsvia tld

Hostnet B.V.📧 Microsoft 365nl

Social Profiles

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Last analyzed: 27 May 2026 at 14:29

Historical Analysis & Change Tracking