dsfn.dk

📜 Historical scan 2026-06-17 04:50:39 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

dsfn.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 2 October 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 213.5.39.133 is hosted by Bo data ApS (AS49974) in Denmark. Mail is handled by ispconfig.eero.dk. The zone is DNSSEC-signed and validates, has no 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#

3 records 29ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	—	—	—
ns2.simply.com	—	—	—
ns3.simply.com	—	—	—

🌍 A Records#

1 records 28ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
213.5.39.133	—	213-5-39-133.static.ip.bodata.dk	AS49974	Bo data ApS	213.5.32.0/21	🇩🇰 Denmark	Vildbjerg

📧 MX Records#

1 records 29ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	ispconfig.eero.dk	213.5.39.153	ispconfig.eero.dk	AS49974 Bo data ApS

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 127ms

TXT Record
v=spf1 a include:ispconfig.eero.dk ~all

✉️ SPF#

Policy	Record (dsfn.dk)
~all (soft fail)	v=spf1 a include:ispconfig.eero.dk ~all

📨 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#

latest probe, not this scan · checked 2026-10-12 20:32:36

www	213.5.39.133 (AS49974) (address records, no CNAME)
www vs bare domain	Same network dsfn.dk: 213.5.39.133 (AS49974) www.dsfn.dk: 213.5.39.133 (AS49974)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: ~all

error include:ispconfig.eero.dk has no SPF record: receivers that reach it return permerror (RFC 7208 §5.2)

🔗 TLSA / DANE#

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

🔐 DNSSEC#

114ms

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

🏷️ SOA#

28ms

Field	Value
Serial	2025052801
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-16 13:43:44

Field	Value
Registrar	Simply.com A/S
Registered	1997-10-02
Expires	2026-12-31 (74d)

🔗 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).

Domain	Registrar
midtpunktetthyholm.dk	CURANET A/S

📋 WHOIS#

⏱️ Lookup Timing#

29ms

28ms

29ms

AAAA

29ms

TXT

127ms

CAA

28ms

HTTPS

32ms

TLSA

75ms

SOA

28ms

MTA-STS

53ms

DNSSEC

114ms

SRV

0ms

Total

484ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 20:32:35	786ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-03 11:55:00	477ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-25 07:19:42	632ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-24 19:58:45	653ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-17 04:50:39 shown	484ms	3 NS 1 A 1 MX	🔒 Secure