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sbo-aventurijn.nl

.nl ok HTTP/1.1 200 391 ms

First seen 2026-06-17 · Last seen 2026-06-17 · crawled 2026-06-17

NL · 84.247.9.169 · AS20857 Signet B.V.

Reputation 92/100 no dmarc policy

sector education subsector school type homepage

HTML metadata

Title
Speciaal basisonderwijs in Volendam | De Aventurijn
Description
Leerlingen met leer- en sociaal emotionele problemen kunnen voor speciaal basisonderwijs terecht bij de Aventurijn in Volendam.
Language
nl
Canonical
https://deskov.nl/

Open Graph

url
https://deskov.nl/
title
Stichting Katholiek Onderwijs Volendam
site name
De Aventurijn
description
Leerlingen met leer- en sociaal emotionele problemen kunnen voor speciaal basisonderwijs terecht bij de Aventurijn in Volendam.

Contact

Technology

Server
nginx
jQuery
1.11.2 known XSS (<3.5)
Analytics
  • Google Tag Manager
Fonts
  • Google Fonts
Third-party hosts loaded (7)
  • ajax.googleapis.com×3
  • unpkg.com×2
  • consent.cookiefirst.com×1
  • deskov.nl×1
  • fonts.googleapis.com×1
  • kit.fontawesome.com×1
  • www.googletagmanager.com×1

DNS records live

NS
  • ns1.premiumdns.zone
  • ns2.premiumdns.zone
MX
  • 10 sboaventurijn-nl0i.mail.protection.outlook.com
Verified for
  • Microsoft 365

Email authentication weak

SPF
v=spf1 a mx include:spf.protection.outlook.com include:relay.smartlockr.eu -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

YR1
from 2026-06-09 to 2026-09-07
Expires in 79 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 60/100 Checked live page: https://sbo-aventurijn.nl/

present
  • strict-transport-security
  • x-frame-options
findings
  • missing Content Security Policy
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-frame-options
SAMEORIGIN
strict-transport-security
max-age=63072000; includeSubDomains

Links to (6)

Linked from (2)

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