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zeehondencentrum.nl

https://zeehondencentrum.nl· First analyzed 29 May 2026· Updated 29 May 2026
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zeehondencentrum.nl
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Hosting Provider

Cloud86 B.V

IP Address

45.82.191.48

Site Location

🇳🇱 Netherlandsvia phone

Server Location

🇳🇱 Drachten, The Netherlands

ASN

AS31477

Organization

Cloud86 B.V

Server

LiteSpeed

Nameservers

ns1.openprovider.nl.ns3.openprovider.eu.ns2.openprovider.be.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
774 ms10%
Speed Index
1.0 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.5 MB
70 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv7.0
cms
YOOthemev4.3.5Custom
by YOOtheme
View Theme

Technology Stack

13 Technologies Detected

Plugins

5
Translatepress MultilingualGdpr Cookie ComplianceWp Simple Firewall
WP Rocket
Yoast SEO

CSS Frameworks

2
Tailwind CSS
UIkit

Libraries

1
jQueryv3.6.0

Analytics

1
Google Analytics

Tag Managers

1
Google Tag Manager

Advertising

1
Microsoft Advertising

Web Servers

1
LiteSpeed

Languages

1
PHPv8.3.31

SEO Analysis

A84/100
25
6
1
Meta Tags14/15
Content10/12
Headings6/8
Technical25/25
E-E-A-T2/7
Images3/7
Links5/5
URL5/5
Social4/5
Freshness4/4
Mobile3/4
Indexability3/3
Z
zeehondencentrum.nlzeehondencentrum.nl

Home - Stichting Zeehondencentrum Pieterburen

Kom langs bij Zeehondencentrum Pieterburen en neem een kijkje in het grootste en gespecialiseerde Zeehondenziekenhuis van Europa!

Title Length45 chars

Recommended: 50-60 chars (~278px / 580px)

Description Length129 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (25/47) — critical for accessibility and SEO

7 issues found

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Crawlability

Sitemap

Type: index

7 URLs

7 sub-sitemaps

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

30/100
Needs Work
9 9

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AI & LLM Readiness

D50/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
7/25
Citation
16/25

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
Text ratio:5%
Words:2,381
Token eff.:Optimal

Structured Data

5 JSON-LD
Organization×1.1WebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary139w
Descriptive Headings
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.
A+
93/100
16
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
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
15/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
10/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

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.
33/100
E
317 mg
CO₂e / view
2.5 MB
Page Weight
30%
Cleaner Than
New Visitor
362 mg
vs
Returning (cached)
181 mg
Annual (10K/mo)
38.0 kg
Emission Segments
Data Center
71 mg
Network
76 mg
Device
170 mg
Resource Breakdown
JavaScript
120.4 KB
Images
2.2 MB
CSS
139.2 KB
HTML
24.4 KB
Other
29.6 KB
Green Hosting Not Verified
Cloud86 B.V
5 recommendations
  • •Carbon footprint recommendation preview...
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F

Security Score

36%Critical
Interactive

HTTPS

No WAF

76d

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

16.05.2026

Valid Until

14.08.2026

Subject Alternative Names (2)

www.zeehondencentrum.nlzeehondencentrum.nl

SHA-256 Fingerprint

27:53:0C:94:16:B3:B9:A4:94:9E:E0:DC:2B:76:8D:77:70:4E:48:74...

Top 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...
cache-control
🟡 0s(public, max-age=0)
content-encoding
⚡ Brotli(br)
content-type
text/html; charset=UTF-8
date
Fri, 29 May 2026 21:06:08 GMT
expires
Fri, 29 May 2026 21:06:08 GMT
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

100

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

Zeehondencentrum-nl.mail.protection.outlook.com

Domain Information

zeehondencentrum.nl

Domain Age
10y 11m

Created

19.06.2015

Last Updated

22.05.2026

Registrar

Registrar.eu

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
Legitimate interest basis mentioned

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.
A
82/100
Mobile Friendly29 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

LFT Etica Condensed + Acumin Pro

WCAG Partial
74/100
Readability
/30
20/30

20px · LH 1.31

Hierarchy
/20
18/20

3.6x ratio

WCAG
/25
16/25

1:1 min contrast

Performance
/25
20/25

2 fonts · 2 req

Heading Font

LFT Etica Condensed

Sans72px

Body Font

Acumin Pro

Sans20px

Contrast Ratio

1:1

15 issues

Reading Comfort

~35 CPL

Narrow lines
72px
h1
72px
h2
32px
h3
20px
p

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

⚠️ Tight line spacing (1.31). Increase to 1.4–1.6 for better readability.

⚠️ Hard to read: Flesch score 46/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 15 elements below WCAG AA threshold (min 1.0:1).

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

✅ Strong hierarchy: Headlines are 3.6x larger than body text.

Buy on MyFontsFlesch 46

Color Palette

6 unique colors
10.37:1 AAA Light
#ffffff
Background· 30%
#404040
Other· 25.099999999999994%
#203032
Primary· 17.799999999999997%
#23211b
Secondary· 14.2%

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

Advertising

1
Microsoft AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

2
CookiebotMid-Market
GDPR Cookie ConsentFree

Cookie consent and privacy compliance tools

3

Categories

5

Total Tools

1

Enterprise

1

Mid-Market

Assessment: Sophisticated marketing and sales technology infrastructure

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Scripts & Styles

19 Resources

14
Scripts
5
Styles
5
Async
0
Defer

Top Script Sources

zeehondencentrum.nl(9)consent.cookiebot.com(2)bat.bing.com(2)googletagmanager.com(1)

Website Identity

Zeehondencentrum Pieterburen

Zeehondencentrum Pieterburen

Organization

Kom langs bij Zeehondencentrum Pieterburen en neem een kijkje in het grootste en gespecialiseerde Zeehondenziekenhuis van Europa!

info@ontdekwec.nl
+31595526526
www.zeehondencentrum.nl/
10 years old
Location detected: 🇳🇱 Netherlandsvia phone
Registrar.eu📧 Microsoft 365nl-NL

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Last analyzed: 29 May 2026 at 21:06

Historical Analysis & Change Tracking