n20.dk DNS records

🖥️ Nameservers2 records 44ms

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 50ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
157.55.231.50	86400s	—	AS8075	Microsoft Corporation	157.55.0.0/16	🇺🇸 United States	Addison

📧 MX Records1 records 52ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	n20-dk.mail.protection.outlook.com	2a01:111:f403:ca04::8 2a01:111:f403:ca04::e 2a01:111:f403:ca09::20 2a01:111:f403:ca09::4 52.101.68.5 52.101.73.11 52.101.73.16 52.101.73.26	mail-db5pr02cu00100.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-as9pr05cu01302.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

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 146ms

TXT Record
MS=ms90687665
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (n20.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -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

🔗 TLSA / DANE

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

🔐 DNSSEC81ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081001
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

44ms

A

50ms

MX

52ms

AAAA

50ms

TXT

146ms

CAA

49ms

HTTPS

41ms

TLSA

808ms

SOA

0ms

MTA-STS

66ms

DNSSEC

81ms

SRV

59ms

Total

1708ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-11 10:45:35	1708ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-17 07:04:06	2195ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-12 08:36:31	1724ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 23:50:15	1365ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 16:58:45	1765ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-22 10:05:41	1124ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 15:03:07	766ms	2 NS 1 A 1 MX	🔒 Secure	View