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isw.nl

.nl ok HTTP/1.1 200 267 ms

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

NL · 35.204.120.88 · AS396982 Google LLC

Reputation 100/100

sector education subsector school type homepage

HTML metadata

Title
ISW Scholengroep - Bij ISW zit je op de juiste plek
Description
ISW biedt voortgezet onderwijs: van praktijkonderwijs tot gymnasium. Dit doen we vanuit 6 locaties in Naaldwijk, ’s-Gravenzande en Poeldijk.
Language
nl-NL
Generator
Site Kit by Google 1.181.0
Canonical
https://isw.nl/

Open Graph

url
https://isw.nl/
title
ISW Scholengroep - Bij ISW zit je op de juiste plek
locale
nl_NL
site name
ISW Corporate
description
ISW biedt voortgezet onderwijs: van praktijkonderwijs tot gymnasium. Dit doen we vanuit 6 locaties in Naaldwijk, ’s-Gravenzande en Poeldijk.

Contact

Technology

CMS
WordPress
jQuery
3.7.1
Analytics
  • Google Tag Manager
Third-party hosts loaded (7)
  • www.googletagmanager.com×3
  • codde.responsivevoice.org×1
  • gmpg.org×1
  • ka-p.fontawesome.com×1
  • kit.fontawesome.com×1
  • px.ads.linkedin.com×1
  • www.facebook.com×1

Social

DNS records live

NS
  • ns0.transip.net
  • ns1.transip.nl
  • ns2.transip.eu
MX
  • 0 isw-nl.mail.protection.outlook.com
Verified for
  • Microsoft 365

Email authentication strong

SPF
v=spf1 include:spf.protection.outlook.com -all
strict (-all)
DMARC
v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s;
policy: reject (enforced) · sp=reject
DKIM
Show 12 DKIM selectors
  • default: v=DKIM1; p=
  • google: v=DKIM1; p=
  • selector1: v=DKIM1; p=
  • selector2: v=DKIM1; p=
  • k1: v=DKIM1; p=
  • k2: v=DKIM1; p=
  • mail: v=DKIM1; p=
  • dkim: v=DKIM1; p=
  • s1: v=DKIM1; p=
  • s2: v=DKIM1; p=
  • mxvault: v=DKIM1; p=
  • smtpapi: v=DKIM1; p=
selectors probed

Certificate (current)

R12
from 2026-05-11 to 2026-08-09
Expires in 50 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://isw.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

Links to (10)

Linked from (6)

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