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rvko.nl

.nl ok HTTP/1.1 200 2090 ms

First seen 2026-06-14 · Last seen 2026-06-14 · crawled 2026-06-14

US · 198.202.211.1 · AS209242 Cloudflare London, LLC

Reputation 100/100

Classifying

HTML metadata

Title
Stichting RVKO - Home
Description
Stichting RVKO (Rotterdamse Vereniging voor Katholiek Onderwijs) biedt ouders en leerlingen hoogwaardig en eigentijds primair onderwijs, met hart en ziel.
Language
nl

Open Graph

title
Stichting RVKO - Home
description
Stichting RVKO (Rotterdamse Vereniging voor Katholiek Onderwijs) biedt ouders en leerlingen hoogwaardig en eigentijds primair onderwijs, met hart en ziel.

Contact

Technology

CDN
Cloudflare
jQuery
3.5.1
Analytics
  • Google Tag Manager
Fonts
  • Adobe Fonts
  • Google Fonts
Third-party hosts loaded (8)
  • cdn.prod.website-files.com×119
  • ajax.googleapis.com×1
  • cdn.jsdelivr.net×1
  • d3e54v103j8qbb.cloudfront.net×1
  • fonts.googleapis.com×1
  • fonts.gstatic.com×1
  • use.typekit.net×1
  • www.googletagmanager.com×1

Social

Registration

Registrar
Previder B.V.
Created
1999-06-24
Updated
2023-11-20
Name servers
  • nsauth1.introweb.nl
  • nsauth2.introweb.nl
  • nsauth3.introweb.net

DNS records live

NS
  • nsauth1.introweb.nl
  • nsauth2.introweb.nl
  • nsauth3.introweb.net
MX
  • 1 rvko-nl.j-v1.mx.microsoft
TXT
  • msfpkey=5tqbsmmxvk56upd77q0kvxvtw
Verified for
  • Adobe
  • Apple
  • Google
  • Microsoft 365
  • TeamViewer

Email authentication strong

SPF
v=spf1 include:spf.protection.outlook.com include:sendgrid.net ip4:185.46.182.1 ip4:185.46.182.200/29 ip4:185.46.182.208/31 include:spf.eprov.nl include:spf.topdesk.net ip4:91.218.37.0/24 ip4:104.40.229.156 ip4:52.169.0.179 ip4:20.50.220.144/28 ip4:40.127.253.48/28 ip4:84.241.177.49 ip4:87.253.232.0/21 ip4:185.189.236.0/22 ip4:185.211.120.0/22 ip4:185.250.236.0/22 ip4:45.14.148.0/22 include:_spf.flexkids.nl ~all
softfail (~all)
DMARC
v=DMARC1; p=quarantine; pct=100; aspf=r;
policy: quarantine
DKIM
  • selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAoZt5D7aiizX88QEgjaNeDeBprUEeTjhwe2TbaWw9+tF8X4oOBzHIJCNLLmuwSQiqsKsILOhHu3IoPU…
  • selector2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzfc5YR/qgh/tJp+4nQ5ty5EmYxfXDWgN4VPNjvw/UGV/KDqW7WaVG7qVdOTZ935izrx9EQ1cam/lfW…
selectors probed

Certificate (current)

WE1
from 2026-05-08 to 2026-08-06
Expires in 47 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://www.rvko.nl/

present
  • strict-transport-security
findings
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
strict-transport-security
max-age=31536000; includeSubDomains; preload

Links to (5)

Linked from (2)

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