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ctgb.nl

https://ctgb.nl· First analyzed 31 May 2026· Updated 31 May 2026
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ctgb.nl
Desktop screenshot of ctgb.nl
Mobile screenshot of ctgb.nl
Mobile

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Hosting Provider

Prolocation B.V.

IP Address

178.22.85.68

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇳🇱 Delft, The Netherlands

ASN

AS41887

Organization

Prolocation B.V.

Nameservers

ns1.rijksoverheidnl.nl.ns0.rijksoverheidnl.com.ns2.rijksoverheidnl.eu.ns3.rijksoverheidnl.org.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
488 ms10%
Speed Index
634 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.3 MB
27 requests

Image Optimization

Lazy LoadResponsiveVercel Image Optimization
0–49
50–89
90–100

Architecture Stack

Hybrid
🔀 Hybrid
Frontend
Framework
Next.js
Infrastructure
Hosting
Prolocation B.V.
CDN
Vercel Image

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

3 Technologies Detected

Meta Frameworks

1
Next.js

CSS Frameworks

1
Tailwind CSS

Analytics

1
Matomo

SEO Analysis

B75/100
26
2
2
Meta Tags8/15
Content8/12
Headings8/8
Technical20/25
E-E-A-T2/7
Images3/7
Links5/5
URL5/5
Social5/5
Freshness4/4
Mobile4/4
Indexability3/3
C
ctgb.nlctgb.nl

Home | College voor de toelating van gewasbeschermingsmiddelen en b...

Het College voor de toelating van gewasbeschermingsmiddelen en biociden (Ctgb) beoordeelt of gewasbeschermingsmiddelen en biociden veilig zijn voor mens, die...

Title truncated. Description truncated.
Title Length74 chars

Recommended: 50-60 chars (~448px / 580px)

Description Length196 chars

Recommended: 120-160 chars

Issues (2)

  • • Title is too long (74 chars, ~448px). Will be truncated in search results.
  • • Most images missing alt text (4/5) — critical for accessibility and SEO

4 issues found

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Crawlability

Sitemap

Type: index

16 URLs

16 sub-sitemaps

robots.txt

2 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

10/100
Poor
3 13 1

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

D46/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
2/25
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:1%
Words:249
Token eff.:Too Short
Sections/1K:60.2
Depth:2/5

Structured Data

2 JSON-LD
WebSite

Citation Readiness

Opening Summary20w
Descriptive Headingsavg 3.3w
Canonical URL
Open Graph3/3
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+
90/100
15
Passed
0
Critical
0
Warnings
Images & Alt Text
20/20
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
7/15
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.
38/100
E
285 mg
CO₂e / view
2.3 MB
Page Weight
50%
Cleaner Than
New Visitor
326 mg
vs
Returning (cached)
163 mg
Annual (10K/mo)
34.2 kg
Emission Segments
Data Center
64 mg
Network
69 mg
Device
153 mg
Resource Breakdown
JavaScript
966.2 KB
Images
3.5 KB
CSS
1.2 MB
HTML
50.7 KB
Other
33.6 KB
Green Hosting Not Verified
Prolocation B.V.
4 recommendations
  • •Carbon footprint recommendation preview...
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A

Security Score

89%Very Good
Interactive

HTTPS

No WAF

165d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Ireland Limited

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

13.11.2025

Valid Until

12.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.ctgb.nl

SHA-256 Fingerprint

C2:66:F5:B7:5A:32:D5:E2:22:59:64:7D:55:60:49:C2:30:74:34:63...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges
bytes
alt-svc
h3=":443"; ma=93600
cache-control
🟡 60s(must-revalidate, max-age=60)
content-encoding
📦 Gzip(gzip)
content-security-policy
default-src 'self'; img-src 'self' data: blob: https://stati...
content-type
text/html; charset=utf-8
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

98

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

externemail.ctgb.nl

Domain Information

ctgb.nl

Domain Age
20y 9m

Created

25.08.2005

Last Updated

25.09.2021

Registrar

Rijksoverheid

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

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...
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Typography & Readability

Noto Sans

WCAG AA
72/100
Readability
/30
22/30

24px · LH 1.42

Hierarchy
/20
17/20

1.67x ratio · ✓ H1→H6

WCAG
/25
22/25

5.86:1 min contrast

Performance
/25
11/25

3 fonts · 2 req

Heading Font

Noto Sans

Sans40px

Body Font

Noto Sans

Sans24px

Contrast Ratio

5.86:1

WCAG AA (≥4.5:1)

Reading Comfort

~33 CPL

Narrow lines
40px
h1
32px
h2
24px
h3
24px
p

✅ Excellent readability: 24px body text is ideal for all devices.

✅ Optimal line spacing: 1.42 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 12/100. Consider shorter sentences and simpler words.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.9:1).

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

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

Buy on MyFontsFluid Type (rem)Flesch 12

Color Palette

10 unique colors
Light
#c9e1eb
Secondary· 16.4%
#e3eccd
Secondary· 13.7%
#5d2d20
Primary· 13.6%
#fffffe
Primary· 12.4%
#645e2b
Secondary· 9.9%
#ac966a
Secondary· 8.5%
#f8c192
Accent· 6.3%
#d3c3b8
Secondary· 5.7%

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

20 Resources

17
Scripts
3
Styles
16
Async
1
Defer

Top Script Sources

local(15)statistiek.rijksoverheid.nl(2)

Website Identity

Ministerie van Landbouw, Natuur en Voedselkwaliteit

GovernmentOrganization
www.ctgb.nl/
20 years old
Location detected: 🇳🇱 Netherlandsvia tld
Rijksoverheidnl

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Last analyzed: 31 May 2026 at 18:23

Historical Analysis & Change Tracking