cyber-sitcen.dk

📜 Historical scan 2026-06-20 18:00:59 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cyber-sitcen.dk is a .dk domain served by 5 nameservers (ns1.brandshelter.com, ns2.brandshelter.de, ns3.brandshelter.info and 2 more). It was registered on 28 September 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 5.22.145.121 is hosted by Amazon.com, Inc. (AS16509) in Germany. Mail is handled by custmx.cscdns.net. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

5 records 119ms

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 AS1921 ipcom GmbH
ns3.brandshelter.info	194.0.182.12 2a04:2b00:14ee::12	ns3.brandshelter.info ns12.k.centralnic-dns.com	AS207021 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 AS1921 ipcom GmbH

🌍 A Records#

2 records 104ms

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 Records#

1 records 118ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	14400s	custmx.cscdns.net	198.58.121.58	198-58-121-58.ip.linodeusercontent.com	AS63949 Akamai Connected Cloud

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	5.22.145.16
🔶 Autoconfig	5.22.145.16

🔷 AAAA Records (IPv6)#

2 records 106ms

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 Records#

1 records 413ms

TXT Record
v=spf1 mx -all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.cyber-sitcen.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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-25 18:21:21

www	5.22.145.121 5.22.145.16 2a00:18e0:5:2:7577:4e4d:413b:f507 2a00:18e0:5:3:dfe2:c743:85aa:61bc (AS16509) (address records, no CNAME)
www vs bare domain	Same network cyber-sitcen.dk: 5.22.145.121 5.22.145.16 2a00:18e0:5:2:7577:4e4d:413b:f507 2a00:18e0:5:3:dfe2:c743:85aa:61bc (AS16509) www.cyber-sitcen.dk: 5.22.145.121 5.22.145.16 2a00:18e0:5:2:7577:4e4d:413b:f507 2a00:18e0:5:3:dfe2:c743:85aa:61bc (AS16509)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

237ms

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

🏷️ SOA#

94ms

Field	Value
Serial	2025035758
Primary NS (MNAME)	ns1.brandshelter.com
Responsible (RNAME)	tech@brandshelter.com
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-08 17:35:05

Field	Value
Registrar	Key-Systems GmbH
Registered	2018-09-28
Expires	2027-09-30 (337d)

📋 WHOIS#

⏱️ Lookup Timing#

119ms

104ms

118ms

AAAA

106ms

TXT

413ms

CAA

103ms

HTTPS

113ms

TLSA

192ms

SOA

94ms

MTA-STS

193ms

DNSSEC

237ms

SRV

237ms

Total

1189ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-25 18:21:21	953ms	5 NS 2 A 1 MX	🔒 Secure
2026-10-22 12:12:42	1959ms	5 NS 2 A 1 MX	🔒 Secure
2026-10-16 01:14:49	2094ms	5 NS 2 A 1 MX	🔒 Secure
2026-10-08 17:20:17	2410ms	5 NS 2 A 1 MX	🔒 Secure
2026-10-07 17:13:54	583ms	5 NS 2 A 1 MX	🔒 Secure
2026-10-01 05:04:18	3096ms	5 NS 2 A 1 MX	🔒 Secure
2026-09-28 04:27:34	1302ms	5 NS 2 A 1 MX	🔒 Secure
2026-09-24 17:53:49	778ms	5 NS 2 A 1 MX	🔒 Secure
2026-09-22 10:00:12	745ms	5 NS 2 A 1 MX	🔒 Secure
2026-09-19 17:39:16	1058ms	5 NS 2 A 1 MX	🔒 Secure
2026-09-12 21:51:10	1136ms	5 NS 2 A 1 MX	🔒 Secure
2026-09-09 01:52:52	2608ms	5 NS 2 A 1 MX	🔒 Secure
2026-08-28 07:14:34	984ms	5 NS 2 A 1 MX	🔒 Secure
2026-08-27 16:55:06	888ms	5 NS 2 A 1 MX	🔒 Secure
2026-08-20 21:47:58	2877ms	5 NS 2 A 1 MX	🔒 Secure
2026-08-14 16:21:29	1467ms	5 NS 2 A 1 MX	🔒 Secure
2026-08-06 16:36:41	1229ms	5 NS 2 A 1 MX	🔒 Secure
2026-07-30 12:20:38	1243ms	5 NS 2 A 1 MX	🔒 Secure
2026-07-24 00:19:42	2827ms	5 NS 2 A 1 MX	🔒 Secure
2026-07-18 00:43:51	1893ms	5 NS 2 A 1 MX	🔒 Secure
2026-07-11 16:40:48	1257ms	5 NS 2 A 1 MX	🔒 Secure
2026-07-03 17:53:30	10069ms	5 NS 2 A 1 MX	🔒 Secure
2026-06-28 02:03:58	1256ms	5 NS 2 A 1 MX	🔒 Secure
2026-06-24 22:13:23	894ms	5 NS 2 A 1 MX	🔒 Secure
2026-06-22 21:34:41	1138ms	0 NS 0 A 0 MX	❓ Unknown