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katwijk.nl

https://katwijk.nl· First analyzed 24 May 2026· Updated 24 May 2026
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katwijk.nl
Desktop screenshot of katwijk.nl
Mobile screenshot of katwijk.nl
Mobile

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Hosting Provider

Leaseweb
leaseweb.com

IP Address

185.71.61.49

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇳🇱 Houten, The Netherlands

ASN

AS60781

Organization

Cobytes B.V

Server

Nginx

Nameservers

ns3.cobytes.eu.ns2.cobytes.com.ns1.cobytes.io.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
507 ms10%
Speed Index
659 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
318 KB
74 requests

Image Optimization

Responsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
TYPO3

Technology Stack

2 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Web Servers

1
Nginx

SEO Analysis

B75/100
23
5
1
Meta Tags8/15
Content10/12
Headings8/8
Technical21/25
E-E-A-T2/7
Images1/7
Links5/5
URL5/5
Social4/5
Freshness4/4
Mobile4/4
Indexability3/3
K
katwijk.nlkatwijk.nl

Gemeente Katwijk | Gemeente Katwijk

Website van de gemeente Katwijk waarop u zelf van alles kunt regelen.

Title Length35 chars

Recommended: 50-60 chars (~227px / 580px)

Description Length69 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (3/4) — critical for accessibility and SEO

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

348 URLs

robots.txt

19 rules

Sitemap reference found

Local SEO

Local Search Readiness

27/100
Needs Work
8 8 1

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AI & LLM Readiness

D48/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
4/25
Citation
17/25

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:3%
Words:295
Token eff.:Too Short
Sections/1K:61
Depth:2/5

Structured Data

2 JSON-LD
WebSiteSearchAction
sameAs entity links

Citation Readiness

Opening Summary57w
Descriptive Headingsavg 2.4w
Canonical URL
Open Graph2/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (7)
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
17
Passed
1
Critical
0
Warnings
Images & Alt Text
18/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
20/20
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
13/15
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.

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.
74/100
A+
32 mg
CO₂e / view
317.6 KB
Page Weight
90%
Cleaner Than
New Visitor
37 mg
vs
Returning (cached)
18 mg
Annual (10K/mo)
3.9 kg
Emission Segments
Data Center
2 mg
Network
9 mg
Device
21 mg
Resource Breakdown
JavaScript
13.6 KB
Images
113.4 KB
CSS
176.0 KB
HTML
14.4 KB
Other
323 B
Green Hosting Verified
Leaseweb Global BV
GWF Verified
3 recommendations
  • •Carbon footprint recommendation preview...
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A

Security Score

86%Very Good
Interactive

HTTPS

No WAF

50d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

14.07.2025

Valid Until

13.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (8)

katwijk.nlafspraak.katwijk.nlextra.katwijk.nlrijnsburg.nlvalkenburgzh.nlwww.katwijk.nlwww.rijnsburg.nlwww.valkenburgzh.nl

SHA-256 Fingerprint

42:28:AB:73:95:53:B7:A4:AD:40:B3:1E:61:50:DA:5E:BC:92:8E:80...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🔴 No Cache(no-cache)
content-encoding
📦 Gzip(gzip)
content-language
nl-NL
content-security-policy
default-src 'self'; script-src 'self' https://piwik.swis.nl ...
content-type
text/html; charset=utf-8
date
Sun, 24 May 2026 09:35:57 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

100

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

katwijk-nl.b-v1.mx.microsoft

Domain Information

katwijk.nl

Domain Age
26y 6m

Created

03.11.1999

Last Updated

28.05.2025

Registrar

RegistrarHub

DNSSEC
Not Enabled

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
67/100
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
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Maax

WCAG AAA
81/100
Readability
/30
20/30

18px · LH 1.60

Hierarchy
/20
17/20

1.78x ratio · ✓ H1→H6

WCAG
/25
24/25

9.4:1 min contrast

Performance
/25
20/25

1 font · 2 req

Heading Font

Maax

Sans32px

Body Font

Maax

Sans18px

Contrast Ratio

9.4:1

WCAG AAA (≥7:1)

Reading Comfort

~34 CPL

Narrow lines
32px
h1
30px
h2
21px
h3
18px
p

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 9.4:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ Lean font stack: 1 font families keeps load times fast.

Buy on MyFontsFlesch 0

Color Palette

6 unique colors
Light
#ffffff
Background· 72.2%
#296598
Accent· 7.7%
#007a99
Primary· 0%
#259b79
Accent· 6.4%
#4a9f79
Secondary· 5.5%
#88ba9d
Secondary· 4.5%
#dee2e4
Secondary· 3.7%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

23 Resources

13
Scripts
10
Styles
1
Async
10
Defer

Top Script Sources

local(12)siteimproveanalytics.com(1)

Website Identity

Gemeente Katwijk • Gemeente Katwijk

Website van de gemeente Katwijk waarop u zelf van alles kunt regelen.

info@katwijk.nl
0714065000
www.katwijk.nl/
26 years old

Koningin Julianalaan 32224 EW Katwijk

Location detected: 🇳🇱 Netherlandsvia tld
RegistrarHubnl

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Last analyzed: 24 May 2026 at 09:36

Historical Analysis & Change Tracking