centerforcybersikkerhed.dk DNS records

🖥️ Nameservers5 records 40ms

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 Records2 records 35ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
5.22.145.121	600s	relay.mail-forwarder.io	AS16509	Amazon.com, Inc.	5.22.145.0/24	🇩🇪 Germany	—
5.22.145.16	600s	relay.mail-forwarder.io	AS16509	Amazon.com, Inc.	5.22.145.0/24	🇩🇪 Germany	—

📧 MX Records3 records 40ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	21600s	cluster1.comendo.dk	192.162.219.155 2a01:77c0:1619:4100:6fa6:1315:2bd2:51cd	mx41.electric.net mx11.electric.net	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
20	21600s	cluster2.comendo.dk	192.162.219.255 2a01:77c0:1619:4101:d99:c22:fb4d:290e	mx41.electric.net mx10.electric.net	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
30	21600s	cluster3.virusprotectionsystems.dk	—	—	—

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	centerforcybersikkerhed.dk → 5.22.145.16
🔶 Autoconfig	centerforcybersikkerhed.dk → 5.22.145.121

🔷 AAAA Records (IPv6)2 records 43ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a00:18e0:5:2:7577:4e4d:413b:f507	600s	relay.mail-forwarder.io	AS16509	Amazon.com, Inc.	2a00:18e0:5:0:0:0:0:0/48	🇩🇪 Germany	—
2a00:18e0:5:3:dfe2:c743:85aa:61bc	600s	relay.mail-forwarder.io	AS16509	Amazon.com, Inc.	2a00:18e0:5:0:0:0:0:0/48	🇩🇪 Germany	—

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records5 records 203ms

TXT Record
_globalsign-domain-verification=8uPRGkvZynDDYOIKHv-NjvsZTLqL0DA4m-xOg0hQsC
_globalsign-domain-verification=izol87OhPehpdFw6JEX-ppblE7xPOzt1oe3F-L7TjE
_globalsign-domain-verification=Nh_gUsrGe2cgKOe2H_5tzWbuSdBYfO3dGPHcD96PLd
_globalsign-domain-verification=xpAJ1PLAP_izHtJpaNyc99a_ukgBirjrCfVf_0xyg_
v=spf1 mx -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.centerforcybersikkerhed.dk)
p=reject	v=DMARC1; p=reject; sp=reject; rua=mailto:dmarc-rua@fe-ddis.dk; ruf=mailto:dmarc-ruf@fe-ddis.dk; fo=1; pct=100

📬 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

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.centerforcybersikkerhed.dk	centerforcybersikkerhed.dk

🔗 TLSA / DANE

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

🔐 DNSSEC108ms

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

🏷️ SOA0ms

Field	Value
Serial	2025035771
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

40ms

A

35ms

MX

40ms

AAAA

43ms

TXT

203ms

CAA

46ms

HTTPS

35ms

TLSA

90ms

SOA

0ms

MTA-STS

51ms

DNSSEC

108ms

SRV

77ms

Total

1730ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 17:55:40	1730ms	5 NS 2 A 3 MX	🔒 Secure	View
2026-08-21 00:15:46	3017ms	5 NS 2 A 3 MX	🔒 Secure	View
2026-08-14 00:35:34	1378ms	5 NS 2 A 3 MX	🔒 Secure	View
2026-08-09 18:44:05	4154ms	5 NS 2 A 3 MX	🔒 Secure	View
2026-08-02 14:07:54	2463ms	5 NS 2 A 3 MX	🔒 Secure	View
2026-07-24 02:08:55	1794ms	5 NS 2 A 3 MX	🔒 Secure	View
2026-07-17 18:10:50	10295ms	5 NS 2 A 3 MX	🔒 Secure	View
2026-07-10 01:41:29	2029ms	5 NS 2 A 3 MX	🔒 Secure	View
2026-07-03 20:48:55	3434ms	5 NS 2 A 3 MX	🔒 Secure	View
2026-06-28 02:36:14	1513ms	5 NS 2 A 3 MX	🔒 Secure	View
2026-06-25 01:44:57	4163ms	5 NS 2 A 3 MX	🔒 Secure	View
2026-06-25 00:17:43	1674ms	5 NS 2 A 3 MX	🔒 Secure	View
2026-06-20 15:43:30	716ms	5 NS 2 A 3 MX	🔒 Secure	View
2026-06-16 20:06:44	863ms	5 NS 2 A 3 MX	🔒 Secure	View