dtm.dk

📜 Historical scan 2026-08-10 14:07:23 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

dtm.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 31 January 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 217.116.232.218 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by dtm-dk.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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 43ms

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 49ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
217.116.232.218	14400s	—	AS47292	Sentia Denmark A/S	217.116.224.0/20	🇩🇰 Denmark	—

📧 MX Records#

1 records 49ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	14400s	dtm-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::f 2a01:111:f403:ca09::3 2a01:111:f403:ca09::9 52.101.68.0 52.101.68.15 52.101.68.36 52.101.73.1	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-am3pr04cu00501.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 → 40.104.116.40

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 193ms

TXT Record
v=spf1 mx ip4:85.129.119.192/28 ip4:212.27.12.146 include:servers.mcsv.net include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (dtm.dk)
-all (hard fail)	v=spf1 mx ip4:85.129.119.192/28 ip4:212.27.12.146 include:servers.mcsv.net include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.dtm.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:jan@dtm.dk

📬 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 2026-10-13 04:10:18

www CNAME	dtm.dk (all on dtm.dk) → 217.116.232.218 (AS47292)
www vs bare domain	Same network dtm.dk: 217.116.232.218 (AS47292) www.dtm.dk: 217.116.232.218 (AS47292)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector2	selector2-dtm-dk._domainkey.dtm1.onmicrosoft.com	RSA · ~1024 bit below 2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

88ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026080901
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 2026-10-13 04:25:37

Field	Value
Registrar	ONE.COM A/S
Registered	1997-01-31
Expires	2027-03-31 (165d)

🔗 Same registrant#

0 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).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

43ms

49ms

AAAA

52ms

TXT

193ms

CAA

66ms

HTTPS

67ms

TLSA

4035ms

SOA

0ms

MTA-STS

64ms

DNSSEC

88ms

SRV

96ms

Total

5021ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 04:10:18	2253ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-09 22:48:43	1358ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-05 14:44:01	2750ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 14:21:23	1066ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-27 15:29:02	845ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-10 00:19:18	1857ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 20:46:12	2829ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-10 14:07:23 shown	5021ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-06 15:02:38	1152ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-20 17:41:37	1131ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-02 02:45:08	1349ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 04:50:21	792ms	2 NS 1 A 1 MX	🔒 Secure