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bigregister.nl

https://bigregister.nl· First analyzed 03 May 2026· Updated 03 May 2026
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bigregister.nl
Desktop screenshot of bigregister.nl
Mobile screenshot of bigregister.nl
Mobile

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Hosting Provider

Prolocation B.V.

IP Address

178.22.85.66

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇳🇱 Delft, The Netherlands

ASN

AS41887

Organization

Prolocation B.V.

Nameservers

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

Performance

100

Core Web Vitals

Weight

First Contentful Paint
458 ms10%
Speed Index
595 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.2 MB
36 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

B76/100
26
4
1
Meta Tags9/15
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
B
bigregister.nlbigregister.nl

Home | BIG-register

Het BIG-register geeft duidelijkheid over wat een zorgverlener kan en mag. U kunt bij ons ook terecht voor het erkennen van uw buitenlandse diploma.

Title Length19 chars

Recommended: 50-60 chars (~116px / 580px)

Description Length148 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (18/19) — critical for accessibility and SEO

5 issues found

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Crawlability

Sitemap

Type: index

5 URLs

5 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

D51/100
Bot Access
20/25
Machine Read.
13/25
Schema Data
2/25
Citation
16/25

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:395
Token eff.:Optimal
Sections/1K:58.2
Depth:2/5

Structured Data

2 JSON-LD
WebSite

Citation Readiness

Opening Summary18w
Descriptive Headingsavg 3.6w
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (8)
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.
47/100
C
152 mg
CO₂e / view
1.2 MB
Page Weight
70%
Cleaner Than
New Visitor
174 mg
vs
Returning (cached)
87 mg
Annual (10K/mo)
18.2 kg
Emission Segments
Data Center
34 mg
Network
36 mg
Device
82 mg
Resource Breakdown
JavaScript
912.1 KB
Images
20.9 KB
CSS
147.1 KB
HTML
51.3 KB
Other
96.0 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

256d

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

15.01.2026

Valid Until

14.01.2027

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.bigregister.nl

SHA-256 Fingerprint

8E:F4:AC:68:42:AF:49:90:7B:36:B2:44:DE:9D:42:EE:2D:82:C1:1B...

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

95

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mail2.ssonet.nl
mail.ssonet.nl

Domain Information

bigregister.nl

Domain Age
29y 2m

Created

18.02.1997

Last Updated

20.09.2021

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.
C
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

RijksSans

WCAG Partial
74/100
Readability
/30
22/30

17px · LH 1.58

Hierarchy
/20
19/20

2.32x ratio · ✓ H1→H6

WCAG
/25
18/25

1.55:1 min contrast

Performance
/25
15/25

1 font · 2 req

Heading Font

RijksSans

Sans40px

Body Font

RijksSans

Sans17px

Contrast Ratio

1.55:1

14 issues

Reading Comfort

~33 CPL

Narrow lines
40px
h1
32px
h2
24px
h3
17px
p

✅ Excellent readability: 17px body text is ideal for all devices.

✅ Optimal line spacing: 1.58 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 20/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 14 elements below WCAG AA threshold (min 1.6:1).

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

✅ Strong hierarchy: Headlines are 2.3x larger than body text.

Buy on MyFontsFluid Type (rem)Flesch 20

Color Palette

7 unique colors
Light
#ffffff
Background· 34.300000000000004%
#00689b
Primary· 25.599999999999998%
#d1d9d2
Secondary· 12.8%
#c9c0ad
Secondary· 10.6%
#739397
Secondary· 6%
#f1ede4
Secondary· 5.4%
#213d4b
Secondary· 5.3%

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 Volksgezondheid, Welzijn en Sport

GovernmentOrganization

Het BIG-register geeft duidelijkheid over wat een zorgverlener kan en mag. U kunt bij ons ook terecht voor het erkennen van uw buitenlandse diploma.

www.bigregister.nl/
29 years old
Location detected: 🇳🇱 Netherlandsvia tld
Rijksoverheidnl

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Last analyzed: 03 May 2026 at 09:27

Historical Analysis & Change Tracking