os-data.dk DNS records

🖥️ Nameservers2 records 114ms

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 Records1 records 112ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
212.237.183.73	86400s	mail.osdata.dk	AS204151	EWII Bredbaand A/S	212.237.176.0/21	🇩🇰 Denmark	Kolding

📧 MX Records1 records 93ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	osdata-dk0e.mail.eo.outlook.com	2a01:111:f403:ca04::5 2a01:111:f403:ca09::26 2a01:111:f403:ca09::5 2a01:111:f403:ca09::6 52.101.68.0 52.101.68.12 52.101.68.15 52.101.73.26	mail-db3pr0202cu00205.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-as9pr05cu01302.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 → 40.104.116.24

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 173ms

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

📝 TXT Records2 records 377ms

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

🔗 TLSA / DANE

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

🔐 DNSSEC338ms

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

🏷️ SOA0ms

Field	Value
Serial	2023062337
Primary NS (MNAME)	ns1.one.com
Responsible (RNAME)	ole@stanstrup.dk
Refresh	10800s
Retry	1800s
Expire	2592000s
Minimum (neg-cache TTL)	86400s

📋 RegistrationWHOIS fetched 2026-08-19 01:39:25

Field	Value
Registrar	ONE.COM A/S
Registered	2008-03-10
Expires	2027-03-31 (210d)

📋 WHOIS

⏱️ Lookup Timing

NS

114ms

A

112ms

MX

93ms

AAAA

76ms

TXT

377ms

CAA

88ms

HTTPS

140ms

TLSA

4753ms

SOA

0ms

MTA-STS

183ms

DNSSEC

338ms

SRV

173ms

Total

7323ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 00:08:27	7323ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-28 12:50:45	920ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-27 12:34:44	4751ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-21 02:25:25	11229ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-20 02:11:28	3175ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-19 01:38:49	5264ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-11 22:54:32	1975ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-10 18:58:32	6901ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-07 07:00:23	1929ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-01 17:42:44	9775ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-25 18:46:42	18027ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-23 17:07:28	10539ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-22 14:38:03	3116ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-16 11:03:08	11319ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-08 19:56:40	2730ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-05 19:08:03	4283ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-04 15:00:31	2033ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-28 12:05:54	4531ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-27 07:54:48	1614ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-26 06:17:00	3661ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-24 06:59:58	4680ms	2 NS 1 A 1 MX	❓ Unknown	View
2026-06-19 05:55:52	3826ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-18 03:56:48	4410ms	2 NS 1 A 1 MX	🔓 Insecure	View