sdfe.dk

📜 Historical scan 2026-06-17 18:08:42 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sdfe.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 3 October 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx01.statens-it.dk, mx02.statens-it.dk and 6 more. 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#

2 records 84ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 98ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
23.88.5.125	—	static.125.5.88.23.clients.your-server.de	AS24940	—	—	—	—

📧 MX Records#

8 records 106ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mx01.statens-it.dk	194.182.109.217	mx01.statens-it.dk	AS58282 Statens IT
10	—	mx02.statens-it.dk	194.182.109.218	mx02.statens-it.dk	AS58282 Statens IT
10	—	mx03.statens-it.dk	194.182.109.219	mx03.statens-it.dk	AS58282 Statens IT
10	—	mx04.statens-it.dk	194.182.109.220	mx04.statens-it.dk	AS58282 Statens IT
10	—	mx05.statens-it.dk	194.182.109.221	mx05.statens-it.dk	AS58282 Statens IT
10	—	mx06.statens-it.dk	194.182.109.222	mx06.statens-it.dk	AS58282 Statens IT
10	—	mx07.statens-it.dk	194.182.109.223	mx07.statens-it.dk	AS58282 Statens IT
10	—	mx08.statens-it.dk	194.182.109.224	mx08.statens-it.dk	AS58282 Statens IT

🔷 AAAA Records (IPv6)#

1 records 86ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a01:4f8:272:3c81::2	—	—	AS24940	—	—	—	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 336ms

TXT Record
v=spf1 include:_spf.sitnet.dk -all

✉️ SPF#

Policy	Record (sdfe.dk)
-all (hard fail)	v=spf1 include:_spf.sitnet.dk -all

📨 DMARC#

Policy	Record (_dmarc.sdfe.dk)
p=reject	v=DMARC1; p=reject; sp=reject; rua=mailto:tcod1eh2@ag.eu.dmarcadvisor.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 08:38:29

www CNAME	sdfe.dk (all on sdfe.dk) → 23.88.5.125 2a01:4f8:272:3c81::2 (AS24940)
www vs bare domain	Same network sdfe.dk: 23.88.5.125 2a01:4f8:272:3c81::2 (AS24940) www.sdfe.dk: 23.88.5.125 2a01:4f8:272:3c81::2 (AS24940)
Wildcard	No
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#

16 records 686ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx01.statens-it.dk	DANE-EE · Full cert · SHA-512	8A12C2B7C0B5B6A9B6026C875909858F…
SMTP _25._tcp.mx01.statens-it.dk	DANE-EE · Full cert · SHA-512	1DFC9477DAE259CF5EC3C684DAAEEA6C…
SMTP _25._tcp.mx02.statens-it.dk	DANE-EE · Full cert · SHA-512	1DFC9477DAE259CF5EC3C684DAAEEA6C…
SMTP _25._tcp.mx02.statens-it.dk	DANE-EE · Full cert · SHA-512	8A12C2B7C0B5B6A9B6026C875909858F…
SMTP _25._tcp.mx03.statens-it.dk	DANE-EE · Full cert · SHA-512	8A12C2B7C0B5B6A9B6026C875909858F…
SMTP _25._tcp.mx03.statens-it.dk	DANE-EE · Full cert · SHA-512	1DFC9477DAE259CF5EC3C684DAAEEA6C…
SMTP _25._tcp.mx04.statens-it.dk	DANE-EE · Full cert · SHA-512	8A12C2B7C0B5B6A9B6026C875909858F…
SMTP _25._tcp.mx04.statens-it.dk	DANE-EE · Full cert · SHA-512	1DFC9477DAE259CF5EC3C684DAAEEA6C…
SMTP _25._tcp.mx05.statens-it.dk	DANE-EE · Full cert · SHA-512	1DFC9477DAE259CF5EC3C684DAAEEA6C…
SMTP _25._tcp.mx05.statens-it.dk	DANE-EE · Full cert · SHA-512	8A12C2B7C0B5B6A9B6026C875909858F…
SMTP _25._tcp.mx06.statens-it.dk	DANE-EE · Full cert · SHA-512	1DFC9477DAE259CF5EC3C684DAAEEA6C…
SMTP _25._tcp.mx06.statens-it.dk	DANE-EE · Full cert · SHA-512	8A12C2B7C0B5B6A9B6026C875909858F…
SMTP _25._tcp.mx07.statens-it.dk	DANE-EE · Full cert · SHA-512	8A12C2B7C0B5B6A9B6026C875909858F…
SMTP _25._tcp.mx07.statens-it.dk	DANE-EE · Full cert · SHA-512	1DFC9477DAE259CF5EC3C684DAAEEA6C…
SMTP _25._tcp.mx08.statens-it.dk	DANE-EE · Full cert · SHA-512	1DFC9477DAE259CF5EC3C684DAAEEA6C…
SMTP _25._tcp.mx08.statens-it.dk	DANE-EE · Full cert · SHA-512	8A12C2B7C0B5B6A9B6026C875909858F…

🔐 DNSSEC#

134ms

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

🏷️ SOA#

92ms

Field	Value
Serial	2026032501
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-09 02:30:45

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2015-10-03
Expires	2027-10-31 (379d)

📋 WHOIS#

⏱️ Lookup Timing#

84ms

98ms

106ms

AAAA

86ms

TXT

336ms

CAA

85ms

HTTPS

84ms

TLSA

686ms

SOA

92ms

MTA-STS

85ms

DNSSEC

134ms

SRV

0ms

Total

2128ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-04 06:17:16	838ms	2 NS 1 A 8 MX	🔒 Secure
2026-10-01 03:22:21	1356ms	2 NS 1 A 8 MX	🔒 Secure
2026-09-23 18:03:31	1633ms	2 NS 1 A 8 MX	🔒 Secure
2026-09-04 22:36:23	1379ms	2 NS 1 A 8 MX	🔒 Secure
2026-09-01 12:01:16	1771ms	2 NS 1 A 8 MX	🔒 Secure
2026-08-31 23:00:57	10065ms	2 NS 0 A 8 MX	🔒 Secure
2026-08-28 02:05:57	1195ms	2 NS 1 A 8 MX	🔒 Secure
2026-08-22 01:02:21	5989ms	2 NS 1 A 8 MX	🔒 Secure
2026-06-29 05:34:59	1554ms	2 NS 1 A 8 MX	🔒 Secure
2026-06-25 05:01:04	1626ms	2 NS 1 A 8 MX	🔒 Secure
2026-06-23 10:08:59	1120ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 18:08:42 shown	2128ms	2 NS 1 A 8 MX	🔒 Secure