niod.nl

https://niod.nl· First analyzed 12 May 2026· Updated 12 May 2026

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niod.nl

Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

18.199.132.174

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS16509

Organization

AWS EC2 (eu-central-1)

Server

Apache

Nameservers

ns3.surfnet.nl.ns2.surfnet.nl.ns1.zurich.surf.net.ns1.surfnet.nl.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

377 ms10%

Speed Index

490 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.3 MB

87 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Hybrid

🔀 Hybrid

Frontend

Framework

Next.js

Infrastructure

Hosting

Amazon Web Services (AWS)

Technology Stack

4 Technologies Detected

Meta Frameworks

CSS Frameworks

Analytics

Web Servers

SEO Analysis

C62/100

Meta Tags7/15

Content10/12

Headings3/8

Technical17/25

E-E-A-T0/7

Images6/7

Links5/5

URL5/5

Social2/5

Freshness0/4

Mobile4/4

Indexability3/3

niod.nlniod.nl

Home - NIOD

Het NIOD Instituut voor Oorlogs-, Holocaust- en Genocidestudies is een nationaal en internationaal expertisecentrum voor interdisciplinair onderzoek naar de ...

Description truncated.

Title Length11 chars

Recommended: 50-60 chars (~71px / 580px)

Description Length341 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag — every page should have exactly one H1

10 issues found

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Local SEO

Local Search Readiness

18/100

Poor

5 11 2

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

D41/100

Bot Access

20/25

Machine Read.

7/25

Schema Data

0/25

Citation

14/25

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:6%

Words:1,687

Token eff.:Optimal

Sections/1K:18.4

Structured Data

No Schema

Citation Readiness

Opening Summary90w

Descriptive Headingsavg 6.7w

Canonical URL

Open Graph1/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (11)

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.

72/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

7/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

10/15

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.

3 recommendations

•Accessibility recommendation preview...

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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.

66/100

134 mg

CO₂e / view

1.3 MB

Page Weight

70%

Cleaner Than

New Visitor

153 mg

Returning (cached)

76 mg

Annual (10K/mo)

16.0 kg

Emission Segments

Data Center

7 mg

Network

39 mg

Device

88 mg

Resource Breakdown

JavaScript

425.8 KB

Images

497.5 KB

CSS

363.7 KB

HTML

36.0 KB

Green Hosting Verified

Amazon Web Services (AWS)

Provider Match

3 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

157d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Hellenic Academic and Research Institutions CA

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

31.03.2026

Valid Until

16.10.2026

Subject Alternative Names (16)

niod.nlwww.niod.nlacc.niod.nlwww.acc.niod.nlniod.knaw.nlwww.niod.knaw.nlapi.niod.nlwww.api.niod.nl+8 more

SHA-256 Fingerprint

27:53:D7:A4:28:7D:A8:A1:E3:31:68:35:17:81:F8:81:05:79:52:59...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(private, no-cache, no-store, max-age=0, must-revalidate)

connection

Keep-Alive

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

date

Tue, 12 May 2026 04:30:01 GMT

keep-alive

timeout=5, max=100

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

niod-nl.mail.protection.outlook.com

Domain Information

niod.nl

Domain Age

25 years

Created

19.04.2001

Last Updated

31.03.2026

Registrar

SURF B.V.

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.

73/100

Mobile Friendly

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...

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Typography & Readability

TT Norms Pro

WCAG Partial

63/100

Readability

/30

23/30

18px · LH 1.65

Hierarchy

/20

8/20

WCAG

/25

17/25

1.49:1 min contrast

Performance

/25

15/25

1 font · 2 req

Heading Font

TT Norms Pro

Sans

Body Font

TT Norms Pro

Sans18px

Contrast Ratio

1.49:1

22 issues

Reading Comfort

~32 CPL

Narrow lines

40px

38px

18px

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

❌ Very complex text: Flesch score 22/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 22 elements below WCAG AA threshold (min 1.5:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

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

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFontsFlesch 22

Color Palette

9 unique colors

7.49:1 AAA Light

#ffffff

Background· 18.1%

#515652

Other· 10%

#c5defc

Accent· 22.7%

#00f193

Primary· 12.2%

#1d2525

Secondary· 9.3%

#c0cad3

Secondary· 6.1%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Matomo (Piwik)Mid-Market

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

21 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(19)cdn.matomo.cloud(1)

Website Identity

niod.nl

25 years old

Location detected: 🇳🇱 Netherlandsvia tld

SURF B.V.📧 Microsoft 365nl

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Last analyzed: 12 May 2026 at 04:30

Historical Analysis & Change Tracking