arbocentrum.nl

https://arbocentrum.nl· First analyzed 01 Jun 2026· Updated 01 Jun 2026

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arbocentrum.nl

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

104.21.18.84

Site Location

🇳🇱 Netherlandsvia phone

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

alexis.ns.cloudflare.com.chloe.ns.cloudflare.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

954 ms10%

Speed Index

1.2 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.8 MB

86 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

Hello Elementor ChildCustom

Technology Stack

42 Technologies Detected

Plugins

Duracelltomi Google Tag Manager

Feedback Company Shortcodes Link Whisper Premium

Facebook For Woocommerce

Gravityformsrecaptcha Megamenu

Analytics

Libraries

UI Components

Swiper Owl Carousel Lightbox

Customer Support

Tidio Zendesk

Advertising

Google Ads LinkedIn Ads

Other

CSS Frameworks

Icon Libraries

Fonts

Tag Managers

Other

CDN

Security

SEO Analysis

B75/100

Meta Tags15/15

Content3/12

Headings3/8

Technical24/25

E-E-A-T2/7

Images6/7

Links5/5

URL5/5

Social4/5

Freshness2/4

Mobile3/4

Indexability3/3

arbocentrum.nlarbocentrum.nl

Voor veiligheidsopleidingen en artikelen | ARBO centrum

ARBO centrum is de plek voor veiligheid, kortom compleet veilig ✅Veiligheidsopleidingen ✅Veiligheidsartikelen ✅Veiligheidsadvies

Title Length55 chars

Recommended: 50-60 chars (~324px / 580px)

Description Length128 chars

Recommended: 120-160 chars

Issues (2)

• Very thin content (7 words). Search engines need substantial content for ranking.
• Missing H1 tag — every page should have exactly one H1

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

8 URLs

8 sub-sitemaps

robots.txt

55 rules

Sitemap reference found

Local SEO

Local Search Readiness

41/100

Fair

10 8 2

Sponsored

AI & LLM Readiness

F32/100

Bot Access

15/25

Machine Read.

7/25

Schema Data

8/25

Citation

2/25

AI Bot Access

6/14 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:1%

Words:1,303

Token eff.:Optimal

Structured Data

5 JSON-LD

Organization×1.1WebSiteLocalBusiness×1.1(min)microdataBreadcrumbListSearchAction

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (12)

AI readiness recommendation preview...

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Sponsored

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.

68/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

6/20

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

11/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

1/15

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.

45/100

183 mg

CO₂e / view

1.8 MB

Page Weight

60%

Cleaner Than

New Visitor

209 mg

Returning (cached)

105 mg

Annual (10K/mo)

22.0 kg

Emission Segments

Data Center

9 mg

Network

54 mg

Device

120 mg

Resource Breakdown

JavaScript

604.9 KB

Images

250.5 KB

CSS

572.2 KB

Fonts

219.5 KB

HTML

158.6 KB

Other

7.0 KB

Green Hosting Verified

Cloudflare

GWF Verified

7 recommendations

•Carbon footprint recommendation preview...

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Security Score

56%Poor

Interactive

HTTPS

WAF

52d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

25.04.2026

Valid Until

24.07.2026

Subject Alternative Names (2)

*.arbocentrum.nlarbocentrum.nl

SHA-256 Fingerprint

28:8C:20:9C:2C:F0:47:58:56:E4:A2:6B:42:8E:61:EC:0A:7A:B0:68...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cf-cache-status

DYNAMIC

cf-ray

a04faa290deaf78f-EWR

content-encoding

zstd

content-type

text/html; charset=UTF-8

date

Mon, 01 Jun 2026 16:41:14 GMT

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

arbocentrum-nl.mail.protection.outlook.com

Domain Information

arbocentrum.nl

Domain Age

8y 11m

Created

04.07.2017

Last Updated

25.02.2026

Registrar

team.blue nl B.V.

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Data Protection Officer mentioned

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.

74/100

Mobile Friendly97 breakpoints

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

Montserrat

WCAG Partial

51/100

Readability

/30

14/30

15px · LH 1.87

Hierarchy

/20

7/20

WCAG

/25

10/25

1:1 min contrast

Performance

/25

20/25

System fonts

Heading Font

Montserrat

Sans

Body Font

Montserrat

Sans15px

Contrast Ratio

1:1

23 issues

Reading Comfort

~41 CPL

Narrow lines

37px

31px

15px

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

⚠️ Wide line spacing (1.87). 1.4–1.6 is optimal for body text.

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 23 elements below WCAG AA threshold (min 1.0:1).

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

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

Buy on MyFontsFlesch 0

Color Palette

9 unique colors

12.88:1 AAA Light

#ffffff

Background· 26.199999999999996%

#2f3236

Text· 13.2%

#0090e3

Primary· 33.7%

#e8f4fb

Accent· 10.1%

#d06019

Accent· 6.4%

#82bddc

Accent· 4.2%

#3086bc

Accent· 3.8%

#e3dbd2

Secondary· 2.2%

Business & Marketing Stack

4 Tools Detected

Enterprise

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

Advertising

Google AdsEnterprise

Ad platforms and retargeting pixels

A/B Testing & Optimization

VWO (Visual Website Optimizer)Mid-Market

Experimentation and conversion optimization

Sponsored

Scripts & Styles

21 Resources

Scripts

Styles

Async

Defer

Top Script Sources

arbocentrum.nl(13)gstatic.com(2)local(2)googletagmanager.com(1)googleads.g.doubleclick.net(1)

Website Identity

ARBO centrum

Organization

ARBO centrum is de plek voor veiligheid, kortom compleet veilig ✅Veiligheidsopleidingen ✅Veiligheidsartikelen ✅Veiligheidsadvies

[email protected]

+31881230888

www.arbocentrum.nl/

8 years old

Location detected: 🇳🇱 Netherlandsvia phone

team.blue nl B.V.📧 Microsoft 365nl-NL

Sponsored

Last analyzed: 01 Jun 2026 at 16:41

Historical Analysis & Change Tracking