0-20.dk

Records from scan: 2026-10-08 06:53:37 · 1100ms total · last checked 2026-10-15 21:50 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

0-20.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 9 March 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.47.247.18 is hosted by One.com A/S (AS51468). Mail is handled by 020-dk0c.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a 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 42ms

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 34ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.47.247.18	3600s	one.com.webforward.g1i.one	AS51468	One.com A/S	195.47.247.0/24	—	—

📧 MX Records#

1 records 42ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	020-dk0c.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::b 2a01:111:f403:ca09::28 2a01:111:f403:ca21::a 52.101.103.162 52.101.68.12 52.101.68.29 52.101.91.21	mail-dbapr03cu00100.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-am6pr02cu00300.inbound.protection.outlook.com mail-maspr04cu00102.inbound.protection.outlook.com mail-miypr03cu00202.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-matpr05cu00105.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 → 52.98.154.136
🔶 Autoconfig	195.47.247.18

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 52ms

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

📝 TXT Records#

2 records 176ms

TXT Record
ca3-3d6f7dd0eceb4f3a8a02ed33330541fe
v=spf1 include:spf.protection.outlook.com a:ldx106.ldasp.dk include:relay.kinstamailservice.com include:relay.mailchannels.net ip4:162.159.135.42 -all

✉️ SPF#

Policy	Record (0-20.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com a:ldx106.ldasp.dk include:relay.kinstamailservice.com include:relay.mailchannels.net ip4:162.159.135.42 -all

📨 DMARC#

Policy	Record (_dmarc.0-20.dk)
p=quarantine	v=DMARC1; p=quarantine; pct=100;

📬 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 2026-10-08 06:53:37

www	195.47.247.18 (AS51468) (address records, no CNAME)
www vs bare domain	Same network 0-20.dk: 195.47.247.18 (AS51468) www.0-20.dk: 195.47.247.18 (AS51468)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 4/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

59ms

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

🏷️ SOA#

37ms

Field	Value
Serial	2026100401
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 2026-10-12 22:51:50

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2004-03-09
Expires	2027-03-31 (165d)

🔗 Same registrant#

3 domains

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
ajaxalarm.dk	Punktum dk A/S (direct)
amstrup-sikring.dk	Punktum dk A/S (direct)
trygogsikker.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

42ms

34ms

42ms

AAAA

29ms

TXT

176ms

CAA

27ms

HTTPS

33ms

TLSA

636ms

SOA

37ms

MTA-STS

51ms

DNSSEC

59ms

SRV

52ms

Total

1100ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 06:53:37 shown	1100ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-04 22:47:19	1245ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-29 22:28:40	1051ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-22 03:50:14	608ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-19 12:32:14	3090ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 12:31:45	1378ms	2 NS 1 A 1 MX	🔒 Secure