sef.dk DNS records

🖥️ Nameservers2 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 Records1 records 35ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.101.82	600s	linux80.curanet.dk	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records1 records 38ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	600s	sef-dk.mail.protection.outlook.com	2a01:111:f403:ca04::7 2a01:111:f403:ca09:: 2a01:111:f403:ca09::4 2a01:111:f403:ca09::d 52.101.68.10 52.101.68.18 52.101.73.15 52.101.73.24	mail-db4pr02cu00307.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-as8pr05cu00300.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 → 40.104.116.40
🔶 Autoconfig	94.231.101.82

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 124ms

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

📝 TXT Records15 records 239ms

TXT Record
_globalsign-domain-verification=e6ZNGgra70Yhv9OGkUlfSPs55wFYgAYP3Bh-K3m31_
_globalsign-domain-verification=HQ3BtqRLmw_e0BGY_-w3jrtc2BzHlt11L-ok4IDaK1
_globalsign-domain-verification=lpovOD08NUhJMHcViITXLk5S3tsPnh2Nt1Xlg5-uuf
_globalsign-domain-verification=MxFFMWDSKmszbSYiByn8wMiNpnAr1VlkFzCdWGmSVm
_globalsign-domain-verification=OfFTX-0wEJwIBPJU15fpCqDxgzHDIGyZ_xiOg7kRfo
_globalsign-domain-verification=sp0GmPwrQ2VLtlgnmKcbt2Txa_XHgwTzLFNafVSIBi
_globalsign-domain-verification=t-7zSgxumhGDrRalZX3x3J9SkPAvrEFi3rheMZAj27
_globalsign-domain-verification=yxiQ6xCNuphQipX2WfSOcHNexVIbWCUM5S9fXN3tOh
anthropic-domain-verification-dvwd5y=DBfxWvEhngnjBs2bDZJhdh9ls
apple-domain-verification=7L8yRp6g8ubND9ue
google-site-verification=iviEu2IAvhGPxHCkaAYNM_FuUrRCd8efoRBBM0tmTA0
MS=D0EA6621E350896536EB48CFEF1C67BD9FBF7008
MS=ms60189894
RuUPcH8pobL+ldjD2P810XTUWui95uUkmUBHPl5kOQ2/NJew7F/Mz5KE6MMJsjWq8+Ohjo7eAD5daGydG0Vx6A==
v=spf1 include:spf.curanet.dk include:spf.mailanyone.net include:spf.protection.outlook.com include:spf.dixa.io ip4:176.22.94.75 ip4:13.80.50.37 ip4:85.27.128.30 ip6:2603:10a6:102:245::12 -all

✉️ SPF

Policy	Record (sef.dk)
-all (hard fail)	v=spf1 include:spf.curanet.dk include:spf.mailanyone.net include:spf.protection.outlook.com include:spf.dixa.io ip4:176.22.94.75 ip4:13.80.50.37 ip4:85.27.128.30 ip6:2603:10a6:102:245::12 -all

📨 DMARC

Policy	Record (_dmarc.sef.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:itdrift@sef.dk; ruf=mailto:itdrift@sef.dk; fo=1; 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

🔗 TLSA / DANE

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

🔐 DNSSEC111ms

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

🏷️ SOA0ms

Field	Value
Serial	2026080301
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 — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

30ms

A

35ms

MX

38ms

AAAA

37ms

TXT

239ms

CAA

36ms

HTTPS

40ms

TLSA

333ms

SOA

0ms

MTA-STS

42ms

DNSSEC

111ms

SRV

124ms

Total

1286ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-03 05:59:35	1286ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-03 18:38:43	786ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-02 00:52:06	3690ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-18 13:14:35	3784ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 13:23:39	2649ms	2 NS 1 A 1 MX	🔒 Secure	View