os-data.dk

📜 Historical scan 2026-06-18 03:56:48 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

os-data.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 10 March 2008 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 212.237.183.73 is hosted by EWII Bredbaand A/S (AS204151) in Denmark. Mail is handled by osdata-dk0e.mail.eo.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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 35ms

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 41ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
212.237.183.73	—	mail.osdata.dk	AS204151	EWII Bredbaand A/S	212.237.176.0/21	🇩🇰 Denmark	Ballerup Municipality

📧 MX Records#

1 records 57ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	osdata-dk0e.mail.eo.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca09::4 2a01:111:f403:ca09::5 2a01:111:f403:ca09::9 52.101.68.0 52.101.68.36 52.101.73.26 52.101.73.30	mail-dbapr03cu00100.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-as9pr05cu01302.inbound.protection.outlook.com mail-am7pr05cu00306.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 → 40.104.231.24

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 88ms

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

📝 TXT Records#

2 records 133ms

TXT Record
MS=ms37086983
v=spf1 include:outlook.com ~all

✉️ SPF#

Policy	Record (os-data.dk)
~all (soft fail)	v=spf1 include: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 2026-10-14 16:03:24

www CNAME	host.osdata.dk (all on osdata.dk) → 212.237.183.73 (AS204151)
www vs bare domain	Same network os-data.dk: 212.237.183.73 (AS204151) www.os-data.dk: 212.237.183.73 (AS204151)
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

86ms

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

🏷️ SOA#

32ms

Field	Value
Serial	2023062312
Primary NS (MNAME)	ns1.one.com
Responsible (RNAME)	ole@stanstrup.dk
Refresh	10800s
Retry	1800s
Expire	2592000s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-05 09:13:27

Field	Value
Registrar	ONE.COM A/S
Registered	2008-03-10
Expires	2027-03-31 (164d)

📋 WHOIS#

⏱️ Lookup Timing#

35ms

41ms

57ms

AAAA

84ms

TXT

133ms

CAA

79ms

HTTPS

36ms

TLSA

3800ms

SOA

32ms

MTA-STS

51ms

DNSSEC

86ms

SRV

88ms

Total

4410ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-14 16:03:24	430ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-12 13:26:29	1128ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-11 13:04:57	1676ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-05 08:33:59	751ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-03 08:14:04	2900ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-02 08:11:32	2307ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-28 06:59:52	599ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-26 01:21:51	722ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-25 00:58:54	1100ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-24 00:43:09	703ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-19 16:09:25	1523ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-08 15:48:32	1386ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-31 00:08:27	7323ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-28 12:50:45	920ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-27 12:34:44	4751ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-21 02:25:25	11229ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-20 02:11:28	3175ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-19 01:38:49	5264ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-11 22:54:32	1975ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-10 18:58:32	6901ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-07 07:00:23	1929ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-01 17:42:44	9775ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-25 18:46:42	18027ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-23 17:07:28	10539ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-22 14:38:03	3116ms	2 NS 1 A 1 MX	🔓 Insecure