usno.dk

Records from scan: 2026-09-30 18:28:37 · 1234ms total · last checked 2026-10-05 18:58 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

usno.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 15 March 2005 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.211.38 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by usno-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, 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 61ms

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 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.211.38	600s	domain-parking.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records

1 records 51ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	usno-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::a 2a01:111:f403:ca04::b 2a01:111:f403:ca21::e 52.101.209.31 52.101.68.29 52.101.73.120 52.101.73.155	mail-dbapr03cu00100.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-matpr04cu00306.inbound.protection.outlook.com mail-cpjpr05cu00207.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-am7pr02cu00300.inbound.protection.outlook.com mail-am7pr02cu00203.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

🔌 SRV Records

1 records 76ms

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

📝 TXT Records

2 records 202ms

TXT Record
MS=ms83176139
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (usno.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 2026-09-30 18:28:37

www	Address record (no CNAME)
Wildcard	No

🔎 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

111ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA

52ms

Field	Value
Serial	2026092501
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 2026-10-05 21:00:52

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2005-03-15
Expires	2027-03-31 (176d)

📋 WHOIS

⏱️ Lookup Timing

61ms

43ms

51ms

AAAA

34ms

TXT

202ms

CAA

50ms

HTTPS

28ms

TLSA

641ms

SOA

52ms

MTA-STS

92ms

DNSSEC

111ms

SRV

76ms

Total

1234ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-30 18:28:37 shown	1234ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-26 06:34:48	1014ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-02 12:01:22	1306ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-27 21:34:06	14053ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-23 18:27:08	5675ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-27 16:36:16	1653ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-18 02:30:31	2726ms	2 NS 1 A 1 MX	🔓 Insecure