indexo.dev

sonnenborgh.nl

.nl crawl

First seen 2026-06-01 · Last seen 2026-06-02 · ok HTTP/1.1 200 781 ms crawled 2026-06-01

NL · 91.142.254.112 · AS20857 Signet B.V.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
Sonnenborgh - museum en sterrenwacht - in Utrecht - Sonnenborgh museum & sterrenwacht
Description
Op museum en sterrenwacht Sonnenborgh in Utrecht komt ver weg dichterbij. Ga op reis door het heelal en het monumentale en wetenschappelijke erfgoed.
Language
nl
Canonical
https://www.sonnenborgh.nl/home

Open Graph

title
Sonnenborgh - museum en sterrenwacht - in Utrecht - Sonnenborgh museum & sterrenwacht
site name
Sonnenborgh - museum & sterrenwacht

Technology

Server
nginx
Stack
PHP
Analytics
  • Google Tag Manager
Fonts
  • Google Fonts

Third-party hosts loaded (3)

  • cdnjs.cloudflare.com×5
  • fonts.googleapis.com×1
  • www.googletagmanager.com×1

Social

Contact

Email
Phone
Address
Zonnenburg 2, 3512 NL, Utrecht, Utrecht, NL

DNS records live

NS
  • auth01-peer.ib.routit.net
  • auth02-peer.ib.routit.net
MX
  • 5 sonnenborgh-nl.mail.protection.outlook.com
Verified for
  • Google
  • Microsoft 365

Email authentication partial

SPF
v=spf1 include:spf.protection.outlook.com include:spf.antispamcloud.com a:msa1.cramgo.nl a:msa2.cramgo.nl -all
strict (-all)
DMARC
v=DMARC1; p=none
policy: none (monitoring only)
DKIM
  • selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQChCCASIxc/mK60QCqKGC5Ho2W3SBAveKEcqAoaFlegXGciwXEdFa3M2sZ9KftPeFK6J9ZLmzmO/vUkk0P7iL…
selectors probed

Certificate (current)

R13
from 2026-05-13 to 2026-08-11
Expires in 70 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 45/100 Checked live page: https://www.sonnenborgh.nl/

present
  • strict-transport-security
findings
  • short HSTS max-age
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
strict-transport-security
max-age=60; includeSubDomains

Links to (8)

Linked from (2)