20011.dk

📜 Historical scan 2026-10-02 09:26:53 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

20011.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 23 January 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by 20011-dk.e-v1.mx.microsoft. The zone is DNSSEC-signed and validates, publishes a 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 36ms

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#

🌍

No A records found

📧 MX Records#

1 records 35ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	20011-dk.e-v1.mx.microsoft	2a01:111:f403:ca04::10 2a01:111:f403:ca04::c 2a01:111:f403:ca04::d 2a01:111:f403:ca09::28 52.101.181.156 52.101.185.21 52.101.68.12 52.101.68.39	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-am6pr02cu00300.inbound.protection.outlook.com mail-wa4pr05cu00104.inbound.protection.outlook.com mail-zrxpr05cu00105.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db7pr03cu00607.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 → 52.98.149.152

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 90ms

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

📝 TXT Records#

2 records 148ms

TXT Record
teamviewer-sso-verification=c358adc6073748e8931b8abe4004257d
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (20011.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.20011.dk)
p=reject	v=DMARC1; p=reject; adkim=s; aspf=s;

📬 MTA-STS#

241ms

Check	Result
Status	⚠️ Invalid
TXT record (_mta-sts)	✓ Found
HTTPS policy	✗ Missing / invalid
Policy ID	2024041900000Z
Policy MX	—

📈 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 2026-10-09 15:30:25

www	46.30.211.38 (AS51468) (address records, no CNAME)
www vs bare domain	Only www resolves 20011.dk: no address www.20011.dk: 46.30.211.38 (AS51468) (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#

4 records 97ms

Service / Owner	Type	Cert association
SMTP _25._tcp.20011-dk.e-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	C1AD7778796D20BCA65C889A26550211…
SMTP _25._tcp.20011-dk.e-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	EA7A25255D111FC3CE4CB8FABE3ADF9C…
SMTP _25._tcp.20011-dk.e-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	54883CC5F1849331E6BF5002C3129D20…
SMTP _25._tcp.20011-dk.e-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	803F7447CC75B208DBCA042346F5D8DF…

🔐 DNSSEC#

123ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

45ms

Field	Value
Serial	2026100101
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 2026-10-14 15:41:23

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2019-01-23
Expires	2027-01-31 (101d)

🔗 Same registrant#

1 domain

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
egesberg.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

36ms

26ms

35ms

AAAA

41ms

TXT

148ms

CAA

30ms

HTTPS

38ms

TLSA

97ms

SOA

45ms

MTA-STS

241ms

DNSSEC

123ms

SRV

90ms

Total

909ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-04 09:28:45	643ms	2 NS 0 A 1 MX	🔒 Secure
2026-10-02 09:26:53 shown	909ms	2 NS 0 A 1 MX	🔒 Secure
2026-09-28 08:15:29	837ms	2 NS 0 A 1 MX	🔒 Secure
2026-08-25 22:00:05	891ms	2 NS 0 A 1 MX	🔒 Secure
2026-07-17 16:38:52	5493ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-29 10:01:23	898ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-16 12:47:37	840ms	2 NS 0 A 1 MX	🔒 Secure