ostrealyceum.nl

.nl ok HTTP/1.1 200 323 ms

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

NL · 87.233.9.171 · AS15703 TrueFullstaq B.V.

Reputation 92/100 no dmarc policy

sector education subsector education media type homepage

HTML metadata

Title
Ostrea Lyceum Goes
Language
nl
Canonical
https://www.ostrealyceum.nl

Contact

Technology

Server
nginx
jQuery
1.10 known XSS (<3.5)
Stack
Java
Analytics
  • Google Tag Manager

Third-party hosts loaded (3)

  • cdn.jsdelivr.net×1
  • ostrealyceum.schoolwiki.nl×1
  • www.googletagmanager.com×1

Social

DNS records live

NS
  • ns0.transip.net
  • ns1.transip.nl
  • ns2.transip.eu
MX
  • 10 spamfilter1.fastware-hosting.com
  • 20 spamfilter2.fastware-hosting.com
  • 30 spamfilter3.fastware-hosting.com

Email authentication weak

SPF
v=spf1 mx a:smtp.ostrealyceum.nl include:spf.customer.wis.nl include:spf.eu.exclaimer.net include:spf.protection.outlook.com include:_spf.salesforce.com include:_spf.transip.email include:_spf.fastware-hosting.com ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-05-11 to 2026-08-09
Expires in 49 days

HTTP security headers

Header hygiene 50/100 Checked live page: https://ostrealyceum.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 (5)

Linked from (1)

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