n20.dk

Records from scan: 2026-10-10 20:39:13 · 2205ms total · last checked 2026-10-17 09:01 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

n20.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 9 October 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 157.55.231.50 is hosted by Microsoft Corporation (AS8075) in United States. Mail is handled by n20-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 321ms

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 334ms

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

📧 MX Records#

1 records 329ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	n20-dk.mail.protection.outlook.com	2a01:111:f403:ca04::b 2a01:111:f403:ca09::26 2a01:111:f403:ca21::a 2a01:111:f403:ca48::10 52.101.103.39 52.101.209.153 52.101.68.39 52.101.91.159	mail-dbbpr03cu00103.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-maspr04cu00102.inbound.protection.outlook.com mail-miypr05cu00100.inbound.protection.outlook.com mail-miypr05cu00207.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-matpr04cu00207.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

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 552ms

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

🧩 Web & zone#

checked 2026-10-10 20:39:13

www CNAME	prodnet12.sharepointonline.com (all on sharepointonline.com) ⚠ Dangling: the CNAME target does not exist. If that name can be claimed (an unregistered domain, or a free name on a hosting platform), whoever claims it controls www.n20.dk
www vs bare domain	www does not resolve n20.dk: 157.55.231.50 (AS8075) www.n20.dk: no address (all like this)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 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#

501ms

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

🏷️ SOA#

78ms

Field	Value
Serial	2026101001
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 2026-10-10 21:23:40

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2011-10-09
Expires	2027-10-31 (379d)

📋 WHOIS#

⏱️ Lookup Timing#

321ms

334ms

329ms

AAAA

84ms

TXT

552ms

CAA

110ms

HTTPS

358ms

TLSA

832ms

SOA

78ms

MTA-STS

386ms

DNSSEC

501ms

SRV

366ms

Total

2205ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-10 20:39:13 shown	2205ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 08:36:16	625ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-22 06:02:30	898ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-10 11:51:39	1280ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-11 10:45:35	1708ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-17 07:04:06	2195ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-12 08:36:31	1724ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-26 23:50:15	1365ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-26 16:58:45	1765ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-22 10:05:41	1124ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 15:03:07	766ms	2 NS 1 A 1 MX	🔒 Secure