oa.dk

Records from scan: 2026-10-12 14:57:55 · 951ms total · last checked 2026-10-21 01:58 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

oa.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 15 October 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.215.31 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by oa-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. 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 41ms

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 39ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.215.31	3600s	webcluster1.webpod15-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records#

1 records 35ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	oa-dk.mail.protection.outlook.com	2a01:111:f403:c967::8 2a01:111:f403:ca04::10 2a01:111:f403:ca38::a 2a01:111:f403:ca48::c 52.101.103.140 52.101.103.39 52.101.68.29 52.101.91.153	mail-cpjpr04cu00100.inbound.protection.outlook.com mail-dbapr03cu00100.inbound.protection.outlook.com mail-wa4pr05cu00102.inbound.protection.outlook.com mail-miypr03cu00104.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-miypr05cu00207.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-matpr04cu00101.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)#

1 records 29ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10e:fe:8711:ede4:55e2	3600s	—	AS51468	One.com A/S	2a02:2350:0:0:0:0:0:0/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 56ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 152ms

TXT Record
MS=ms80649325
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (oa.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 2026-10-12 14:57:55

www	46.30.215.31 2a02:2350:5:10e:fe:8711:ede4:55e2 (AS51468) (address records, no CNAME)
www vs bare domain	Same network oa.dk: 46.30.215.31 2a02:2350:5:10e:fe:8711:ede4:55e2 (AS51468) www.oa.dk: 46.30.215.31 2a02:2350:5:10e:fe:8711:ede4:55e2 (AS51468)
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#

115ms

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

🏷️ SOA#

34ms

Field	Value
Serial	2026101101
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 2026-10-09 19:23:21

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1997-10-15
Expires	2026-12-31 (71d)

📋 WHOIS#

⏱️ Lookup Timing#

41ms

39ms

35ms

AAAA

29ms

TXT

152ms

CAA

43ms

HTTPS

42ms

TLSA

308ms

SOA

34ms

MTA-STS

43ms

DNSSEC

115ms

SRV

56ms

Total

951ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 14:57:55 shown	951ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-09 11:17:12	1440ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-07 10:09:00	1165ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-29 02:15:34	931ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-28 01:54:28	1542ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-28 11:30:53	1490ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-31 10:56:09	14093ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-29 01:48:15	1875ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-28 07:29:21	1280ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-26 05:31:18	1006ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-25 11:24:42	3111ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-18 01:59:54	2028ms	2 NS 1 A 1 MX	🔒 Secure