defence-college.dk

📜 Historical scan 2026-06-17 01:30:03 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

defence-college.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.47.247.18 is hosted by One.com A/S (AS51468). The zone is DNSSEC-signed and validates, 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#

2 records 52ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	—	—	—
ns02.one.com	—	—	—

🌍 A Records#

1 records 53ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.47.247.18	—	one.com.webforward.g1i.one	AS51468	One.com A/S	195.47.247.0/24	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 157ms

TXT Record
v=spf1 -all

✉️ SPF#

Policy	Record (defence-college.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC#

Policy	Record (_dmarc.defence-college.dk)
p=reject	v=DMARC1; p=reject; sp=reject; rua=mailto:dmarc@fak.dk;

📬 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 23:11:59

www CNAME	defence-college.dk (all on defence-college.dk) → 195.47.247.18 (AS51468)
www vs bare domain	Same network defence-college.dk: 195.47.247.18 (AS51468) www.defence-college.dk: 195.47.247.18 (AS51468)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

136ms

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

🏷️ SOA#

47ms

Field	Value
Serial	2026061201
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

52ms

53ms

54ms

AAAA

52ms

TXT

157ms

CAA

54ms

HTTPS

51ms

TLSA

34ms

SOA

47ms

MTA-STS

64ms

DNSSEC

136ms

SRV

0ms

Total

400ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-25 23:11:59	484ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-13 01:51:40	565ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-01 07:26:46	667ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-29 15:14:44	1219ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-17 15:24:08	615ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-07 15:46:45	1019ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 00:38:15	728ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-13 10:20:23	8760ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-19 16:47:47	487ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-14 10:13:14	8449ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-07 02:19:43	2297ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-04 21:42:18	988ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 10:18:52	506ms	2 NS 1 A 1 MX	⚠️ Bogus
2026-06-23 20:43:05	699ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-23 08:16:29	952ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-23 05:32:54	538ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-22 19:22:44	1092ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 01:32:31	1191ms	2 NS 1 A 0 MX	🔒 Secure
2026-06-17 01:30:03 shown	400ms	2 NS 1 A 0 MX	🔒 Secure