stronghold.dk

Records from scan: 2026-10-01 08:05:55  ·  9352ms total  ·  last checked 2026-10-24 20:24 (unchanged)
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

stronghold.dk is a .dk domain served by 4 nameservers (ephemera.nmugroup.se, origo.nmugroup.com, unit.nmugroup.com and 1 more). It was registered on 21 February 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 193.183.80.13 is hosted by Nordisk Media Utveckling AB (AS204074) in Sweden. Mail is handled by .. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

4 records   41ms
NameserverIP addressesPTRASN / ISP
ephemera.nmugroup.se 2a02:80:3ffe::28
85.30.129.28		 ephemera.nmugroup.se
ephemera.nmugroup.se		 AS34244 Teleservice Bredband Skane AB
AS34244 Teleservice Bredband Skane AB
origo.nmugroup.com 193.183.80.4
2001:67c:1b2c::4		 origo.nmugroup.com
origo.nmugroup.com		 AS204074 Nordisk Media Utveckling AB
AS204074 Nordisk Media Utveckling AB
unit.nmugroup.com 2001:4db8:e004::2
217.10.116.210		 unit.nmugroup.com
unit.nmugroup.com		 AS35706 Net at Once Sweden AB
AS35706 Net at Once Sweden AB
vertex.nmugroup.se 195.246.120.244
2a02:752:0:18::18		 vertex.nmugroup.se
vertex.nmugroup.se		 AS42708 Glesys AB
AS42708 Glesys AB

🌍 A Records#

1 records   45ms
IPTTLPTRASNISP / OrgCIDRCountryCity
193.183.80.13 3600s redirect.nmugroup.com AS204074 Nordisk Media Utveckling AB 193.183.80.0/24 🇸🇪 Sweden —

📧 MX Records#

1 records   44ms
PriorityTTLMail ServerIP addressesPTRASN
0 3600s .  Null MX — domain accepts no email (RFC 7505)

🔷 AAAA Records (IPv6)#

1 records   38ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2001:67c:1b2c::4:1 3600s redirect.nmugroup.com AS204074 Nordisk Media Utveckling AB 2001:67c:1b2c:0:0:0:0:0/48 🇸🇪 Sweden —

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝
No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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#

checked 2026-10-08 12:23:06
www CNAMEredirect.nmugroup.com (all on nmugroup.com)
www vs bare domainSame network
WildcardNo

🔗 TLSA / DANE#

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

🔐 DNSSEC#

9059ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

33ms
FieldValue
Serial2022080900
Primary NS (MNAME)origo.nmugroup.com
Responsible (RNAME)dns@nmugroup.com
Refresh86400s
Retry7200s
Expire3600000s
Minimum (neg-cache TTL)3600s

📋 Registration#

WHOIS fetched 2026-10-10 17:37:08
FieldValue
RegistrarInterNetX GmbH
Registered2017-02-21
Expires2027-02-28 (125d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
41ms
A
45ms
MX
44ms
AAAA
38ms
TXT
360ms
CAA
42ms
HTTPS
44ms
TLSA
47ms
SOA
33ms
MTA-STS
53ms
DNSSEC
9059ms
SRV
65ms
Total
9352ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-01 08:05:55 shown 9352ms 4 NS 1 A 1 MX 🔓 Insecure
2026-08-26 23:57:57 894ms 4 NS 1 A 1 MX 🔓 Insecure
2026-06-18 04:06:57 585ms 4 NS 1 A 0 MX 🔓 Insecure
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