cosgun.dk

📜 Historical scan 2026-06-16 22:33:42  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cosgun.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 11 October 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.103.63 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx.simply.com. The zone is DNSSEC-signed but currently fails validation, publishes a DMARC policy and has no IPv6 address. 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#

4 records   234ms
NameserverIP addressesPTRASN / ISP
ns1.simply.com — — —
ns2.simply.com — — —
ns3.simply.com — — —
ns4.simply.com — — —

🌍 A Records#

1 records   277ms
IPTTLPTRASNISP / OrgCIDRCountryCity
94.231.103.63 — linux118.unoeuro.com AS48854 team.blue Denmark A/S 94.231.96.0/20 🇩🇰 Denmark —

📧 MX Records#

1 records   242ms
PriorityTTLMail ServerIP addressesPTRASN
10 — mx.simply.com 94.231.106.20 mx.simply.com AS48854 team.blue Denmark A/S

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records   465ms
TXT Record
v=spf1 include:spf.simply.com -all

✉️ SPF#

PolicyRecord (cosgun.dk)
-all (hard fail) v=spf1 include:spf.simply.com -all

📨 DMARC#

PolicyRecord (_dmarc.cosgun.dk)
p=reject v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com;

📬 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 2026-10-08 14:25:40
www94.231.103.63 (AS48854) (address records, no CNAME)
www vs bare domainSame network
cosgun.dk: 94.231.103.63 (AS48854)
www.cosgun.dk: 94.231.103.63 (AS48854)
WildcardYes: any name under the zone resolves
Denial of existenceNSEC zone can be walked (all names enumerable)
CDS / CDNSKEYPublished: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

2 records   247ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 A9D603AF4D7ED6B9246B4B68500CD6F2…
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 97A3BA009F39C761BFFB6574340E8138…

🔐 DNSSEC#

436ms
CheckResult
Validation Status⚠️ Bogus
AD Flag (resolver validates)✗ Not set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsbroken trust chain resolving 'cosgun.dk/DNSKEY/IN': 127.0.0.1#53

🏷️ SOA#

262ms
FieldValue
Serial2025062400
Primary NS (MNAME)ns1.simply.com
Responsible (RNAME)hostmaster@simply.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)3600s

📋 Registration#

WHOIS fetched 2026-10-14 19:23:09
FieldValue
RegistrarSimply.com A/S
Registered2002-10-11
Expires2026-12-31 (69d)

🔗 Same registrant#

1 domain

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

DomainRegistrar
taktic.dkSimply.com A/S
📋 WHOIS#

⏱️ Lookup Timing#

NS
234ms
A
277ms
MX
242ms
AAAA
329ms
TXT
465ms
CAA
181ms
HTTPS
288ms
TLSA
247ms
SOA
262ms
MTA-STS
308ms
DNSSEC
436ms
SRV
0ms
Total
1764ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-02 09:21:53 531ms 4 NS 1 A 1 MX 🔒 Secure
2026-09-30 09:05:30 423ms 4 NS 1 A 1 MX 🔒 Secure
2026-09-08 05:36:08 545ms 4 NS 1 A 1 MX 🔒 Secure
2026-06-27 08:59:11 1638ms 4 NS 1 A 1 MX 🔒 Secure
2026-06-24 23:14:39 2017ms 4 NS 1 A 1 MX 🔒 Secure
2026-06-16 22:33:42 shown 1764ms 4 NS 1 A 1 MX ⚠️ Bogus
2026-06-16 22:30:40 622ms 4 NS 1 A 1 MX 🔒 Secure
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