castellum.com

.com crawl

First seen 2026-06-01 · Last seen 2026-06-02 · ok HTTP/1.1 200 1038 ms crawled 2026-06-01

SE · 217.114.94.2 · AS30811 Optimizely AB

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title: Castellum | The Nordic region’s most sustainable property company
Description: Castellum has a presence in three of the Nordic region’s capitals and growth markets, and own the most properties of any Nordic property company. Read more about us here.
Language: en
Canonical: https://www.castellum.com/

Open Graph

url: https://www.castellum.com/
title: Castellum | The Nordic region’s most sustainable property company
locale: en
site name: Castellum Corporate
description: Castellum has a presence in three of the Nordic region’s capitals and growth markets, and own the most properties of any Nordic property company. Read more about us here.

Technology

CDN: Cloudflare
jQuery: 3.6.0

Analytics

Google Tag Manager

Third-party hosts loaded (2)

cdn.cookietractor.com×2
www.googletagmanager.com×1

Registration

Registrar

Abion AB

Created

1997-06-26

Expires

2026-06-25 22 days left

Updated

2025-10-01

Name servers

a.portsdns.se
b.portsdns.net

DNS records live

NS

a.portsdns.se
b.portsdns.net

MX

0 castellum-com.mail.protection.outlook.com

TXT

vTjyAGyWbWyQaIW543zLv5Dho2xZgxsKmoNZnyh3oBA=

Verified for

Google
Microsoft
Microsoft 365

Email authentication partial

SPF

v=spf1 include:spf.protection.outlook.com -all

strict (-all)

DMARC

v=DMARC1; p=none; rua=mailto:fbhejsql@ag.eu.dmarcadvisor.com,mailto:rua@dmarc.portsgroup.com;

policy: none (monitoring only)

DKIM

selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvPI98vcEdnBmyHtbs0VxPaTMrmnblw3S19Xk8JLTtNewof+qKtgurY5umki2ThVEu90CTRRUNQ28s3…
s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAmUZO8ZS8Ef30sTnSlm1BFqSlmFD4RXg5dzMTJwqop/S7SgovGmob2iCngk3Zu+wONTBAbJr2mMHF8sV1B3…
s2: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2T8W5coW0OCVCW7K/Ws42XbzNwDVfrPbYjYij7EkUpsx1AIZMyUhpxs3iUuqxWUEt0iAJtbObNXC8MzYqz…

selectors probed

Certificate (current)

WE1

from 2026-05-06 to 2026-08-04

Expires in 62 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.castellum.com/

findings

missing HSTS
missing Content Security Policy
missing frame protection
missing content type protection
missing Referrer Policy
missing Permissions Policy