ddsa.dk DNS records

🖥️ Nameservers2 records 29ms

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 29ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
130.225.68.7	3600s	www4.compute.dtu.dk	AS1835	IDDQD-AS	130.225.0.0/16	🇩🇰 Denmark	—

📧 MX Records1 records 33ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	ddsa-dk.mail.protection.outlook.com	2a01:111:f403:ca09:: 2a01:111:f403:ca09::20 2a01:111:f403:ca09::a 2a01:111:f403:ca09::b 52.101.68.10 52.101.68.18 52.101.68.39 52.101.73.22	mail-am3pr04cu00500.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-am7pr05cu00106.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
🔶 Autoconfig	77.111.240.167

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records3 records 153ms

TXT Record
5Nl7xagLJ0Lfd4tBG/HgIS2N0u59CElGkpQiQ/i8/QkvUZa2tXjjKA2DyvDKn5TvOs7wx+lAcum7diJ1Ged3kw==
MS=ms68542800
v=spf1 include:spf.dtu.dk include:servers.mcsv.net -all

✉️ SPF

Policy	Record (ddsa.dk)
-all (hard fail)	v=spf1 include:spf.dtu.dk include:servers.mcsv.net -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)

🔐 DNSSEC114ms

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

🏷️ SOA0ms

Field	Value
Serial	2026083101
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

29ms

A

29ms

MX

33ms

AAAA

28ms

TXT

153ms

CAA

34ms

HTTPS

32ms

TLSA

408ms

SOA

0ms

MTA-STS

66ms

DNSSEC

114ms

SRV

71ms

Total

940ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 22:04:13	940ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-18 05:45:03	1904ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-14 21:23:46	5781ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 21:02:15	1221ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 01:29:36	810ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 01:20:34	1367ms	2 NS 1 A 1 MX	🔒 Secure	View