prf.dk

📜 Historical scan 2026-06-29 15:47:03 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

prf.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 28 June 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.103.100 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by prf-dk.mail.protection.outlook.com. 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#

3 records 42ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 32ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.103.100	600s	dnsforward.simply.com	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records#

1 records 36ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	prf-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::5 2a01:111:f403:ca04::b 2a01:111:f403:ca04::e 52.101.68.39 52.101.68.8 52.101.73.22 52.101.73.8	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db3pr0202cu00205.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-am7pr05cu00106.inbound.protection.outlook.com mail-am0pr04cu00500.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.24
🔶 Autoconfig	94.231.106.109

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 185ms

TXT Record
MS=ms10213480
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (prf.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.prf.dk)
p=reject	v=DMARC1; p=reject; pct=100

📬 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 20:21:57

www	94.231.106.109 (AS48854) (address records, no CNAME)
www vs bare domain	Same network prf.dk: 94.231.103.100 (AS48854) www.prf.dk: 94.231.106.109 (AS48854)
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

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-prf-dk._domainkey.planetaryresponsibility.onmicrosoft.com	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

59ms

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

🏷️ SOA#

32ms

Field	Value
Serial	2025052800
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 2026-10-12 20:45:08

Field	Value
Registrar	Simply.com A/S
Registered	2022-06-28
Expires	2027-06-27 (250d)

🔗 Same registrant#

20 domains

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
alfacowork.dk	Simply.com A/S
alfacoworks.dk	Simply.com A/S
alfahabitat.dk	Punktum dk A/S (direct)
alfahome.dk	Simply.com A/S
alfaliving-irmabyen.dk	Punktum dk A/S (direct)
alfalivingroom.dk	Punktum dk A/S (direct)
alfaplay.dk	Punktum dk A/S (direct)
alfaresidence.dk	Simply.com A/S
alfawork.dk	Simply.com A/S
andreea-kaiser.dk	Simply.com A/S
ib-alfaliving.dk	Punktum dk A/S (direct)
ibalfaliving.dk	Punktum dk A/S (direct)
korsdalsvej.dk	Simply.com A/S
maisonirmabyen.dk	Punktum dk A/S (direct)
morkhoj-bygade.dk	Simply.com A/S
seedalfaventures.dk	Simply.com A/S
soborg-skovby.dk	Simply.com A/S
soeborg-skovby.dk	Simply.com A/S
soeborgskovby.dk	Simply.com A/S
treetrek.dk	Simply.com A/S

📋 WHOIS#

⏱️ Lookup Timing#

42ms

32ms

36ms

AAAA

37ms

TXT

185ms

CAA

50ms

HTTPS

36ms

TLSA

251ms

SOA

32ms

MTA-STS

52ms

DNSSEC

59ms

SRV

49ms

Total

1045ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 20:21:57	1194ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-03 01:32:15	2394ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-29 15:47:03 shown	1045ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-24 05:56:47	1080ms	3 NS 1 A 1 MX	⚠️ Bogus
2026-06-23 21:52:39	842ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-23 05:18:32	941ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-18 10:42:42	1516ms	3 NS 1 A 1 MX	🔒 Secure