indexo.dev

het-erasmusisk.nl

.nl ok HTTP/1.1 200 1052 ms

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

NL · 31.7.4.235 · AS20847 Previder B.V.

Reputation 94/100 dmarc monitor-only

sector education subsector school type landing page

HTML metadata

Title
Het Erasmus ISK - Isk
Language
nl-NL
Canonical
https://www.het-erasmusisk.nl/

Open Graph

url
https://www.het-erasmusisk.nl/
title
Het Erasmus ISK
locale
nl_NL
site name
Isk
locale:alternate
nl_NL

Contact

Technology

Server
Apache
Analytics
  • Google Tag Manager

Third-party hosts loaded (1)

  • www.googletagmanager.com×1

Social

DNS records live

NS
  • ns1.shockmedia.nl
  • ns2.shockmedia.nl
  • ns3.shockmedia.nl
MX
  • 10 mail.het-erasmusisk.nl

Email authentication partial

SPF
v=spf1 a mx include:spf.shockmedia.email ~all
softfail (~all)
DMARC
v=DMARC1; p=none
policy: none (monitoring only)
DKIM
no key found at common selectors

Certificate (current)

Sectigo Public Server Authentication CA DV E36
from 2025-08-26 to 2026-09-04
Expires in 75 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 90/100 Checked live page: https://www.het-erasmusisk.nl/

present
  • strict-transport-security
  • content-security-policy
  • x-content-type-options
  • referrer-policy
  • permissions-policy
findings
  • missing frame protection
Header values
referrer-policy
no-referrer-when-downgrade
permissions-policy
geolocation=self, microphone=self, camera=self, payment=self, accelerometer=self, gyroscope=self, magnetometer=self, midi=self, sync-xhr=self, fullscreen=(self "https://www.youtube.com" "https://www.youtube-nocookie.com" "https://player.vimeo.com")
x-content-type-options
nosniff
content-security-policy
upgrade-insecure-requests; block-all-mixed-content; frame-ancestors 'self' https://www.het-erasmus.nl/ https://www.het-erasmuspro.nl/ https://www.het-erasmusisk.nl/;
strict-transport-security
max-age=31536000; includeSubDomains; preload

Links to (8)

Linked from (1)

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