n20.dk

📜 Historical scan 2026-09-10 11:51:39 · ← Latest scan

⬇ 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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 45ms

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 44ms

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 Records#

1 records 44ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	n20-dk.mail.protection.outlook.com	2a01:111:f403:ca04::8 2a01:111:f403:ca21::a 2a01:111:f403:ca21::e 2a01:111:f403:ca3c::6 52.101.181.156 52.101.209.28 52.101.68.16 52.101.73.145	mail-db5pr02cu00100.inbound.protection.outlook.com mail-maspr04cu00102.inbound.protection.outlook.com mail-matpr04cu00306.inbound.protection.outlook.com mail-zrxpr04cu00106.inbound.protection.outlook.com mail-wa4pr05cu00104.inbound.protection.outlook.com mail-cpjpr05cu00104.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-am6pr02cu00301.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 137ms

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#

latest probe, not this scan · 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#

136ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026090901
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 (378d)

📋 WHOIS#

⏱️ Lookup Timing#

45ms

44ms

AAAA

48ms

TXT

137ms

CAA

45ms

HTTPS

33ms

TLSA

621ms

SOA

0ms

MTA-STS

62ms

DNSSEC

136ms

SRV

68ms

Total

1280ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-10 20:39:13	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 shown	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