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nbbu.nl

https://nbbu.nl· First analyzed 27 May 2026· Updated 27 May 2026
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nbbu.nl
Desktop screenshot of nbbu.nl
Mobile screenshot of nbbu.nl
Mobile

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Hosting Provider

TrueFullstaq B.V

IP Address

87.233.179.146

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇳🇱 Amsterdam, The Netherlands

ASN

AS15703

Organization

TrueFullstaq B.V

Server

Apache

Nameservers

auth02.dns.trueserver.nl.auth03.dns.trueserver.nl.auth01.dns.trueserver.nl.

Performance

90

Core Web Vitals

Weight

First Contentful Paint
1.4 s10%
Speed Index
1.9 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.7 MB
42 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms

Technology Stack

5 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Web Servers

1
Apache

SEO Analysis

C61/100
17
10
1
Meta Tags7/15
Content9/12
Headings8/8
Technical19/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social2/5
Freshness0/4
Mobile1/4
Indexability3/3
N
nbbu.nlnbbu.nl

Dé brancheorganisatie van professionele intermediairs op de arbeids...

De NBBU is dé brancheorganisatie van professionele intermediairs op de arbeidsmarkt. We behartigen de belangen van ruim 1.400 brede dienstverleners in de fle...

Title truncated. Description truncated.
Title Length79 chars

Recommended: 50-60 chars (~475px / 580px)

Description Length275 chars

Recommended: 120-160 chars

Issues (1)

  • • Title is too long (79 chars, ~475px). Will be truncated in search results.

11 issues found

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Crawlability

Sitemap

Type: index

2 URLs

2 sub-sitemaps

robots.txt

41 rules

Local SEO

Local Search Readiness

8/100
Poor
2 13 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

D46/100
Bot Access
20/25
Machine Read.
13/25
Schema Data
0/25
Citation
13/25

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
header/footer
Text ratio:9%
Words:709
Token eff.:Optimal
Sections/1K:24
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary50w
Descriptive Headingsavg 3.8w
Canonical URL
Open Graph1/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (9)
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
80/100
12
Passed
2
Critical
0
Warnings
Images & Alt Text
15/20
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
9/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
6/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 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.
26/100
E
340 mg
CO₂e / view
2.7 MB
Page Weight
30%
Cleaner Than
New Visitor
388 mg
vs
Returning (cached)
194 mg
Annual (10K/mo)
40.8 kg
Emission Segments
Data Center
76 mg
Network
82 mg
Device
182 mg
Resource Breakdown
JavaScript
898.2 KB
Images
1.4 MB
CSS
104.8 KB
Fonts
121.0 KB
HTML
4.6 KB
Other
186.3 KB
Green Hosting Not Verified
TrueFullstaq B.V
6 recommendations
  • •Carbon footprint recommendation preview...
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A

Security Score

86%Very Good
Static / Informational

HTTPS

No WAF

75d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

13.05.2026

Valid Until

11.08.2026

Subject Alternative Names (3)

app-api.nbbu.nlnbbu.nlwww.nbbu.nl

SHA-256 Fingerprint

B1:3B:11:80:74:ED:F9:72:B0:4B:1D:71:7F:B3:0E:9B:42:55:85:59...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🟡 12 Hours(max-age=43200, public)
content-encoding
📦 Gzip(gzip)
content-language
nl
content-length
4378
content-type
text/html; charset=UTF-8
date
Wed, 27 May 2026 15:06:37 GMT
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

100

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

nbbu-nl.mail.protection.outlook.com

Domain Information

nbbu.nl

Domain Age
29y 1m

Created

08.04.1997

Last Updated

11.07.2025

Registrar

Registrar.eu

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
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
65/100
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=1.0
2 recommendations
  • •Mobile compatibility recommendation preview...
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Typography & Readability

Helvetica Neue Bold + Helvetica Neue Light

WCAG Partial
70/100
Readability
/30
21/30

16px · LH 1.50

Hierarchy
/20
20/20

2.75x ratio · ✓ H1→H6

WCAG
/25
14/25

1.38:1 min contrast

Performance
/25
15/25

2 fonts · 3 req

Heading Font

Helvetica Neue Bold

Sans44px

Body Font

Helvetica Neue Light

Sans16px

Contrast Ratio

1.38:1

11 issues

Reading Comfort

~38 CPL

Narrow lines
44px
h1
30px
h2
22px
h3
16px
p

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 35/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 11 elements below WCAG AA threshold (min 1.4:1).

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

✅ Strong hierarchy: Headlines are 2.8x larger than body text.

Buy on MyFontsFlesch 35

Color Palette

8 unique colors
4.62:1 AA Dark
#4f4d4a
Text· 8.5%
#bdc1bc
Other· 4.9%
#133247
Accent· 51.199999999999996%
#d7e1ea
Secondary· 16.9%
#356a92
Primary· 8.6%
#f3f2e0
Secondary· 3.3%
#2e4c60
Secondary· 2%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

9 Resources

5
Scripts
4
Styles
2
Async
3
Defer

Top Script Sources

local(3)googletagmanager.com(2)

Website Identity

nbbu.nl

29 years old
Location detected: 🇳🇱 Netherlandsvia tld
Registrar.eu📧 Microsoft 365nl

Social Profiles

LinkedInYouTube

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Last analyzed: 27 May 2026 at 16:20

Historical Analysis & Change Tracking

nbbu.nl Technology Stack - Built With Tailwind CSS, Google Analytics, Google Analytics 4, Google Tag Manager, Apache | StackOptic | StackOptic