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vlissingen.nl

https://vlissingen.nl· First analyzed 22 May 2026· Updated 22 May 2026
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vlissingen.nl
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Mobile

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Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

54.72.60.200

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇮🇪 Dublin, Ireland

ASN

AS16509

Organization

AWS EC2 (eu-west-1)

Nameservers

ns0.transip.net.ns2.transip.eu.ns1.transip.nl.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
697 ms10%
Speed Index
906 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
432 KB
91 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Hybrid
⚙️ SSR
Frontend
Framework
Next.js
CMS
Drupal
Infrastructure
Hosting
Amazon Web Services (AWS)

Progressive Web App

Web ManifestTheme Color

Technology Stack

7 Technologies Detected

Icon Libraries

2
Font AwesomeIonicons

Analytics

2
Google Analytics
Matomo

Meta Frameworks

1
Next.jsv2.10.1

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

SEO Analysis

B74/100
23
5
2
Meta Tags4/15
Content10/12
Headings8/8
Technical23/25
E-E-A-T2/7
Images2/7
Links5/5
URL5/5
Social4/5
Freshness4/4
Mobile4/4
Indexability3/3
V
vlissingen.nlvlissingen.nl

Home | Gemeente Vlissingen

No description available for this page.

Title Length26 chars

Recommended: 50-60 chars (~160px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing meta description — important for click-through rates in SERPs
  • • Most images missing alt text (10/10) — critical for accessibility and SEO

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

1,027 URLs

robots.txt

10 rules

Local SEO

Local Search Readiness

18/100
Poor
5 12

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

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AI & LLM Readiness

D56/100
Bot Access
20/25
Machine Read.
11/25
Schema Data
4/25
Citation
21/25

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:2%
Words:624
Token eff.:Optimal
Sections/1K:25.6
Depth:2/5

Structured Data

2 JSON-LD
Person×1.3(min)Organization×1.1

Citation Readiness

Opening Summary31w
Descriptive Headingsavg 4.1w
Canonical URL
Open Graph2/3
Twitter Card2/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (9)
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
86/100
15
Passed
3
Critical
0
Warnings
Images & Alt Text
18/20
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
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
12/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
1 recommendation
  • •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.
80/100
A
44 mg
CO₂e / view
431.7 KB
Page Weight
90%
Cleaner Than
New Visitor
50 mg
vs
Returning (cached)
25 mg
Annual (10K/mo)
5.2 kg
Emission Segments
Data Center
2 mg
Network
13 mg
Device
29 mg
Resource Breakdown
HTML
40.9 KB
Other
390.7 KB
Green Hosting Verified
Amazon Web Services (AWS)
Provider Match
2 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
B

Security Score

71%Good
Interactive

HTTPS

No WAF

121d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

06.03.2026

Valid Until

20.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.vlissingen.nlvlissingen.nl

SHA-256 Fingerprint

02:6F:A9:19:02:FF:0E:24:68:1F:9A:A8:3A:01:91:84:87:A7:E3:86...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-headers
content-type
access-control-allow-methods
POST, GET, OPTIONS
cache-control
🟡 30s(public, s-maxage=60, max-age=30, stale-while-revalidate=59)
content-encoding
📦 Gzip(gzip)
content-security-policy
default-src 'self'; img-src * data: 'unsafe-inline' blob:; s...
content-security-policy-report-only
default-src 'self'; img-src * data: blob:; style-src * 'unsa...
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

98

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

vlissingen-nl.c-v1.mx.microsoft

Domain Information

vlissingen.nl

Domain Age
28y 8m

Created

30.09.1997

Last Updated

29.03.2022

Registrar

team.blue nl B.V.

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
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.
B
71/100
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
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Open Sans + -apple-system

WCAG Partial
79/100
Readability
/30
23/30

16px · LH 1.50

Hierarchy
/20
17/20

2.5x ratio · ✓ H1→H6

WCAG
/25
19/25

1:1 min contrast

Performance
/25
20/25

System fonts

Heading Font

Open Sans

Sans40px

Body Font

-apple-system

Sans16px

Contrast Ratio

1:1

2 issues

Reading Comfort

~34 CPL

Narrow lines
40px
h1
27px
h2
27px
h3
16px
p

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

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

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

⚠️ Partial contrast: 2 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 2.5x larger than body text.

Buy on MyFontsFlesch 21

Color Palette

9 unique colors
2.89:1 Fail Light
#ffffff
Background· 44.4%
#9598a0
Other· 6.2%
#000000
Primary· 0%
#19365e
Primary· 18.3%
#669cb6
Secondary· 7.6%
#06808a
Primary· 7.1%
#a3b2c0
Secondary· 6.9%
#4f596b
Secondary· 3.8%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Matomo (Piwik)Mid-Market
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

30 Resources

20
Scripts
10
Styles
1
Async
20
Defer

Top Script Sources

cuatro.sim-cdn.nl(19)vlissingen.logging.simanalytics.nl(1)

Website Identity

Gemeente Vlissingen

Gemeente Vlissingen

Organization

Bezoek de website van Gemeente Vlissingen voor meer informatie.

14 0118
www.vlissingen.nl
28 years old
Location detected: 🇳🇱 Netherlandsvia tld
team.blue nl B.V.nl

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Last analyzed: 22 May 2026 at 14:18

Historical Analysis & Change Tracking