cobra-museum.nl

https://cobra-museum.nl· First analyzed 15 May 2026· Updated 15 May 2026

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cobra-museum.nl

Mobile

Sponsored

Hosting Provider

Cloud86 B.V

IP Address

45.82.189.242

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇳🇱 Drachten, The Netherlands

ASN

AS31477

Organization

Cloud86 B.V

Server

LiteSpeed

Nameservers

ns1.cloud86.nl.ns2.cloud86.nl.ns3.cloud86.eu.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

542 ms10%

Speed Index

705 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

24.2 MB

47 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

CMS

WordPressv6.9.4

Infrastructure

Hosting

Cloud86 B.V

Technology Stack

16 Technologies Detected

Plugins

Simple Download Monitor

Contact Form 7

Complianz Gdpr Premium

Analytics

CSS Frameworks

Libraries

Icon Libraries

Fonts

Tag Managers

Advertising

Web Servers

Languages

SEO Analysis

B73/100

Meta Tags7/15

Content11/12

Headings3/8

Technical24/25

E-E-A-T0/7

Images4/7

Links4/5

URL5/5

Social4/5

Freshness4/4

Mobile4/4

Indexability3/3

cobra-museum.nlcobra-museum.nl

Museum Cobra | Amstelveen

Museum Cobra telt de kunst en het gedachtegoed van de Cobra-beweging centraal. Het belang van een alternatieve cultuur, gebaseerd op internationale solidarit...

Description truncated.

Title Length25 chars

Recommended: 50-60 chars (~159px / 580px)

Description Length368 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (12/12) — critical for accessibility and SEO

8 issues found

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Crawlability

Sitemap

Type: index

9 URLs

9 sub-sitemaps

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

19/100

Poor

6 10 1

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

Sponsored

AI & LLM Readiness

D47/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

4/25

Citation

13/25

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

data-nosnippet

Machine Readability

llms.txt

llms-full.txt

Semantic HTML

Heading Hierarchy

navheader/footer

Text ratio:6%

Words:688

Token eff.:Optimal

Sections/1K:37.8

Depth:2/5

Structured Data

4 JSON-LD

WebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary575w

Descriptive Headingsavg 3.5w

Canonical URL

Open Graph3/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

AI readiness recommendation preview...

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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.

68/100

Passed

Critical

Warnings

Images & Alt Text

3/20

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

Semantic Structure

13/20

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

11/15

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

3 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.

25/100

3.07 g

CO₂e / view

24.2 MB

Page Weight

Cleaner Than

New Visitor

3.51 g

Returning (cached)

1.75 g

Annual (10K/mo)

368.4 kg

Emission Segments

Data Center

686 mg

Network

737 mg

Device

1.65 g

Resource Breakdown

JavaScript

240.5 KB

Images

14.0 KB

CSS

24.0 MB

Fonts

881 B

HTML

16.1 KB

Other

404 B

Green Hosting Not Verified

Cloud86 B.V

7 recommendations

•Carbon footprint recommendation preview...

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Security Score

71%Good

Static / Informational

HTTPS

No WAF

59d

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+H3

Valid From

15.04.2026

Valid Until

14.07.2026

Subject Alternative Names (8)

cobra-museum.nlcobramuseum.nlmuseum-cobra.nlmuseumcobra.nlwww.cobra-museum.nlwww.cobramuseum.nlwww.museum-cobra.nlwww.museumcobra.nl

SHA-256 Fingerprint

B4:26:A8:45:F2:36:D3:A5:A9:84:5C:87:2B:1D:D9:5C:62:F1:A4:1E...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=2592000, h3-29=":443"; ma=2592000, h3-Q050=":4...

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=UTF-8

date

Fri, 15 May 2026 23:55:30 GMT

link

<https://cobra-museum.nl/wp-json/>; rel="https://api.w.org/"...

server

LiteSpeed

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

cobramuseum-nl01c.mail.protection.outlook.com

Domain Information

cobra-museum.nl

Domain Age

29y 1m

Created

15.04.1997

Last Updated

27.03.2026

Registrar

Registrar.eu

DNSSEC

Not Enabled

Privacy & Compliance

Complianz

Cookie Consent Banner

Complianz

GDPR Indicators

Cookie consent banner detected

CMP: Complianz

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.

75/100

Mobile Friendly6 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

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

Kontinent + Work Sans

WCAG Partial

60/100

Readability

/30

19/30

16px · LH 1.88

Hierarchy

/20

8/20

WCAG

/25

15/25

1:1 min contrast

Performance

/25

18/25

2 fonts · 2 req

Heading Font

Kontinent

Sans

Body Font

Work Sans

Sans16px

Contrast Ratio

1:1

5 issues

Reading Comfort

~39 CPL

Narrow lines

65px

18px

16px

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

⚠️ Wide line spacing (1.88). 1.4–1.6 is optimal for body text.

❌ Very complex text: Flesch score 21/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 5 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

GGoogle Fonts Buy on MyFontsFluid Type (rem)Flesch 21

Color Palette

6 unique colors

Light

#f4f4f4

Background· 44.400000000000006%

#0d2a52

Primary· 24.999999999999996%

#681e3a

Accent· 11.2%

#a4646e

Secondary· 9.1%

#655263

Secondary· 3.5%

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Privacy & Cookies

ComplianzSMB

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

26 Resources

Scripts

Styles

Async

Defer

Top Script Sources

cobra-museum.nl(10)connect.facebook.net(2)googletagmanager.com(2)local(2)rtb8.adscience.nl(1)

Website Identity

Museum Cobra | Amstelveen

Museum Cobra telt de kunst en het gedachtegoed van de Cobra-beweging centraal. Het belang van een alternatieve cultuur, gebaseerd op internationale solidariteit en creativiteit, is in onze huidige wereld belangrijker dan ooit. Museum Cobra de collectie en de geschiedenis van Cobra dan ook actief aan

info@cobra-museum.nl

0031205475050

cobra-museum.nl/

29 years old

Location detected: 🇳🇱 Netherlandsvia tld

Registrar.eu📧 Microsoft 365nl-NL

Social Profiles

Facebook Instagram LinkedIn

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Last analyzed: 15 May 2026 at 23:55

Historical Analysis & Change Tracking