rfe.dk

📜 Historical scan 2026-08-27 18:02:46 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rfe.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 8 March 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.42.65 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by rfe-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#

2 records 30ms

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 27ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.42.65	3600s	vm1379.enterprisecloud.nu	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 30ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	rfe-dk.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca09::26 2a01:111:f403:ca09::c 2a01:111:f403:ca38::8 52.101.68.3 52.101.68.8 52.101.73.15 52.101.73.28	mail-du2pr03cu00102.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-am7pr05cu00204.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 → 40.104.116.56
🔶 Autoconfig	185.21.42.65

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 56ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records#

3 records 144ms

TXT Record
apple-domain-verification=wmDA8PYIIwfDs6zB
uvmid=473301
v=spf1 include:spf.protection.outlook.com include:skoleintra.dk include:spf.mailjet.com ip4:80.210.94.205/32 -all

✉️ SPF#

Policy	Record (rfe.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:skoleintra.dk include:spf.mailjet.com ip4:80.210.94.205/32 -all

📨 DMARC#

Policy	Record (_dmarc.rfe.dk)
p=quarantine	v=DMARC1; p=quarantine; 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 2026-10-16 11:19:04

www	185.21.42.65 (AS48854) (address records, no CNAME)
www vs bare domain	Same network rfe.dk: 185.21.42.65 (AS48854) www.rfe.dk: 185.21.42.65 (AS48854)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-rfe-dk._domainkey.rfe.onmicrosoft.com	RSA · ~1024 bit below 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: 4/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

103ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026082702
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 2026-10-14 03:40:55

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2001-03-08
Expires	2027-03-31 (164d)

🔗 Same registrant#

2 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
ringe-fsk.dk	Punktum dk A/S (direct)
ringeefterskole.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

30ms

27ms

30ms

AAAA

32ms

TXT

144ms

CAA

26ms

HTTPS

30ms

TLSA

588ms

SOA

0ms

MTA-STS

49ms

DNSSEC

103ms

SRV

56ms

Total

1086ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-16 11:19:04	1457ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-15 04:25:56	2025ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-14 03:20:11	1270ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-25 10:29:22	889ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-31 17:39:29	2534ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 18:02:46 shown	1086ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-25 01:53:33	1523ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 22:33:26	1096ms	2 NS 1 A 1 MX	🔒 Secure