kastellet.dk DNS records

🖥️ Nameservers5 records 42ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.brandshelter.com	193.227.117.9 2a04:2b00:14cc::9	ns1.brandshelter.com —	AS1921 ipcom GmbH AS1921 ipcom GmbH
ns2.brandshelter.de	194.50.187.11 2a04:2b00:14dd::11	ns2.brandshelter.de ns11.j.centralnic-dns.com	AS207021 ipcom GmbH AS207021 ipcom GmbH
ns3.brandshelter.info	194.0.182.12 2a04:2b00:14ee::12	ns3.brandshelter.info ns12.k.centralnic-dns.com	AS1921 ipcom GmbH AS1921 ipcom GmbH
ns4.brandshelter.net	193.227.117.10 2a04:2b00:14cc::10	ns4.brandshelter.net ns10.i.centralnic-dns.com	AS1921 ipcom GmbH AS1921 ipcom GmbH
ns5.brandshelter.us	194.50.187.14 2a04:2b00:14dd::14	ns5.brandshelter.us ns14.j.centralnic-dns.com	AS207021 ipcom GmbH AS207021 ipcom GmbH

🌍 A Records1 records 150ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
51.158.216.235	300s	235-216-158-51.instances.scw.cloud	AS12876	Scaleway SAS	51.158.0.0/15	🇳🇱 The Netherlands	Haarlem

📧 MX Records2 records 123ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	21600s	relay1.netnames.net	185.26.230.83	relay1.netnames.net	AS34922 CSC Administrative Services Limited
20	21600s	relay2.netnames.net	185.26.230.89	relay2.netnames.net	AS34922 CSC Administrative Services Limited

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records5 records 323ms

TXT Record
_globalsign-domain-verification=5Cmeeyj12ZrMJX_3nwcKwwCEGb_aO86dGwNRB4GF7r
_globalsign-domain-verification=bRDZsrBm8Fw28ws4cC_GxzuBZhGu0VR8ZqsaCPyD39
_globalsign-domain-verification=E2QlHHZcEVriljhJe6sTIbwB6jmDzehWKhUkfGzMsA
_globalsign-domain-verification=EK5nDLxvNdoUsdxBN5iuJRQ08FWwU3gq_Ff49GLyKu
v=spf1 mx -all

✉️ SPF

Policy	Record (kastellet.dk)
-all (hard fail)	v=spf1 mx -all

📨 DMARC

Policy	Record (_dmarc.kastellet.dk)
p=reject	v=DMARC1; p=reject; sp=reject;

📬 MTA-STS

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records

✗ No CAA records — any CA may issue certificates

🔗 TLSA / DANE

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC212ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA0ms

Field	Value
Serial	2025114069
Primary NS (MNAME)	ns1.brandshelter.com
Responsible (RNAME)	tech@brandshelter.com
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	300s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

42ms

A

150ms

MX

123ms

AAAA

60ms

TXT

323ms

CAA

57ms

HTTPS

60ms

TLSA

134ms

SOA

0ms

MTA-STS

202ms

DNSSEC

212ms

SRV

166ms

Total

1147ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 04:31:51	1147ms	5 NS 1 A 2 MX	🔒 Secure	View
2026-08-27 12:42:36	620ms	5 NS 1 A 2 MX	🔒 Secure	View
2026-08-20 02:11:19	3078ms	5 NS 1 A 2 MX	🔒 Secure	View
2026-08-15 11:26:27	3273ms	5 NS 1 A 2 MX	🔒 Secure	View
2026-08-09 07:28:39	1142ms	5 NS 1 A 2 MX	🔒 Secure	View
2026-07-31 12:54:09	1100ms	5 NS 1 A 2 MX	🔒 Secure	View
2026-07-23 18:34:21	10112ms	5 NS 1 A 2 MX	🔒 Secure	View
2026-07-16 13:42:06	2380ms	5 NS 1 A 2 MX	🔒 Secure	View
2026-07-09 04:03:29	2248ms	5 NS 1 A 2 MX	🔒 Secure	View
2026-07-02 14:04:11	1001ms	5 NS 1 A 2 MX	🔒 Secure	View
2026-06-26 18:00:16	2038ms	5 NS 1 A 2 MX	🔒 Secure	View
2026-06-23 12:50:24	4448ms	5 NS 1 A 2 MX	🔒 Secure	View
2026-06-22 11:50:50	932ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-22 05:28:20	997ms	5 NS 1 A 2 MX	🔒 Secure	View
2026-06-21 00:17:11	3020ms	5 NS 1 A 2 MX	🔒 Secure	View
2026-06-17 14:02:02	4008ms	5 NS 1 A 2 MX	🔒 Secure	View