onderwijsraad.nl

https://onderwijsraad.nl· First analyzed 27 May 2026· Updated 27 May 2026

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onderwijsraad.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.ns2.rijksoverheidnl.eu.ns0.rijksoverheidnl.com.ns3.rijksoverheidnl.org.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.3 s10%

Speed Index

1.6 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

3.6 MB

35 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

Next.js

CSS Frameworks

Tailwind CSS

Analytics

Matomo

SEO Analysis

B73/100

Meta Tags7/15

Content8/12

Headings8/8

Technical20/25

E-E-A-T2/7

Images3/7

Links4/5

URL5/5

Social5/5

Freshness4/4

Mobile4/4

Indexability3/3

onderwijsraad.nlonderwijsraad.nl

Home | Onderwijsraad

Goed onderwijs voor iedereen: dat is waar de Onderwijsraad met zijn adviezen aan bijdraagt. De Onderwijsraad is al ruim 100 jaar hét onafhankelijke adviescol...

Description truncated.

Title Length20 chars

Recommended: 50-60 chars (~128px / 580px)

Description Length371 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (12/13) — critical for accessibility and SEO

6 issues found

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Crawlability

Sitemap

Type: index

10 URLs

10 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

D52/100

Bot Access

20/25

Machine Read.

13/25

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:311

Token eff.:Optimal

Sections/1K:41.8

Depth:2/5

Structured Data

2 JSON-LD

WebSite

Citation Readiness

Opening Summary66w

Descriptive Headingsavg 3.7w

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

Passed

Critical

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.

32/100

462 mg

CO₂e / view

3.6 MB

Page Weight

15%

Cleaner Than

New Visitor

528 mg

Returning (cached)

264 mg

Annual (10K/mo)

55.4 kg

Emission Segments

Data Center

103 mg

Network

111 mg

Device

248 mg

Resource Breakdown

JavaScript

966.2 KB

Images

1.2 MB

CSS

1.2 MB

HTML

51.8 KB

Other

259.8 KB

Green Hosting Not Verified

Prolocation B.V.

6 recommendations

•Carbon footprint recommendation preview...

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Security Score

89%Very Good

Interactive

HTTPS

No WAF

49d

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

16.07.2025

Valid Until

15.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.onderwijsraad.nl

SHA-256 Fingerprint

A4:36:32:C0:54:B3:E5:A3:77:69:41:A7:3D:31:16:9E:3A:F1:B4:8C...

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

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

filter.sliweb.nl

Domain Information

onderwijsraad.nl

Domain Age

28y 5m

Created

19.12.1997

Last Updated

31.05.2021

Registrar

Rijksoverheid

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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.

68/100

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 Partial

72/100

Readability

/30

25/30

24px · LH 1.42

Hierarchy

/20

17/20

1.67x ratio · ✓ H1→H6

WCAG

/25

19/25

1.06:1 min contrast

Performance

/25

11/25

3 fonts · 2 req

Heading Font

Noto Sans

Sans40px

Body Font

Noto Sans

Sans24px

Contrast Ratio

1.06:1

2 issues

Reading Comfort

~32 CPL

Narrow lines

40px

32px

23px

24px

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

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

⚠️ Hard to read: Flesch score 33/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 1.1:1).

✅ 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 33

Color Palette

10 unique colors

14.47:1 AAA Light

#ffffff

Text· 12%

#2c2925

Secondary· 9.5%

#01466f

Primary· 16%

#f0f2f3

Secondary· 14.3%

#d1b573

Accent· 11.5%

#0a1012

Secondary· 11.1%

#554a42

Secondary· 8.8%

#c24436

Accent· 6.7%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

20 Resources

Scripts

Styles

Async

Defer

Top Script Sources

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

Website Identity

Ministerie van Onderwijs, Cultuur en Wetenschap

GovernmentOrganization

Goed onderwijs voor iedereen: dat is waar de Onderwijsraad met zijn adviezen aan bijdraagt. De Onderwijsraad is al ruim 100 jaar hét onafhankelijke adviescollege over onderwijs van de regering en het parlement. De raad beziet het hele onderwijs: van voorschoolse opvang en basisschool tot voortgezet

www.onderwijsraad.nl/

28 years old

Location detected: 🇳🇱 Netherlandsvia tld

Rijksoverheidnl

Social Profiles

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Last analyzed: 27 May 2026 at 18:34

Historical Analysis & Change Tracking