niebuhr.dk DNS records

🖥️ Nameservers2 records 67ms

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 48ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.40.46.22	600s	co3web05-22.wehost.dk	AS62319	Itm8 A/S	185.40.44.0/22	🇩🇰 Denmark	Viby J

📧 MX Records1 records 45ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	600s	niebuhr-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::4 2a01:111:f403:ca09::2 2a01:111:f403:ca09::24 52.101.68.3 52.101.73.123 52.101.73.15 52.101.73.22	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db4pr02cu00204.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-am6pr02cu00203.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-am7pr05cu00106.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 → 52.98.149.136

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 80ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	1	100	1	5061sipfed.online.lync.com

📝 TXT Records4 records 204ms

TXT Record
_globalsign-domain-verification=BfdsZer5asQTqmRT6NWzmgteHoeKEfagjpHAxt0sig
5/qppG85HpfcPCXlBbzpS2X9RUC3KA+ORzDx7+oM+esly2HtL9egipppX1qoh6g5YLIfV4q1mAv/smOb0Ty5tw==
MS=ms37620566
v=spf1 a:mail.niebuhr.dk include:spf.protection.outlook.com include:_spf.wehost.dk ip4:193.106.122.55 -all

✉️ SPF

Policy	Record (niebuhr.dk)
-all (hard fail)	v=spf1 a:mail.niebuhr.dk include:spf.protection.outlook.com include:_spf.wehost.dk ip4:193.106.122.55 -all

📨 DMARC

Policy	Record (_dmarc.niebuhr.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:69aeb25b8e0de@dmarc-dk.centerasecurity.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

🔗 TLSA / DANE

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

🔐 DNSSEC102ms

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

🏷️ SOA0ms

Field	Value
Serial	2026080201
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

67ms

A

48ms

MX

45ms

AAAA

41ms

TXT

204ms

CAA

62ms

HTTPS

77ms

TLSA

317ms

SOA

0ms

MTA-STS

96ms

DNSSEC

102ms

SRV

80ms

Total

969ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 12:56:33	969ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-06 16:01:22	1689ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-28 15:53:38	5394ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-03 14:29:49	1308ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-28 17:45:39	2103ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 16:07:06	2199ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 03:23:29	1004ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-19 09:53:19	5645ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-18 08:36:45	1248ms	2 NS 1 A 1 MX	🔒 Secure	View