dfdadministration.dk DNS records

🖥️ Nameservers2 records 37ms

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 54ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
178.33.221.84	7200s	ip84.ip-178-33-221.eu	AS16276	OVH SAS	178.32.0.0/15	🇫🇷 France	—

📧 MX Records1 records 51ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	dfdadministration-dk.mail.protection.outlook.com	2a01:111:f403:ca04::5 2a01:111:f403:ca09::2 2a01:111:f403:ca09::4 2a01:111:f403:ca48::a 52.101.68.29 52.101.68.36 52.101.73.22 52.101.73.30	mail-db3pr0202cu00205.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-am7pr05cu00106.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 → 40.104.116.40

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 84ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records2 records 170ms

TXT Record
MS=ms39740650
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (dfdadministration.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

🔗 TLSA / DANE

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

🔐 DNSSEC83ms

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

🏷️ SOA65ms

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

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

37ms

A

54ms

MX

51ms

AAAA

51ms

TXT

170ms

CAA

50ms

HTTPS

75ms

TLSA

622ms

SOA

65ms

MTA-STS

62ms

DNSSEC

83ms

SRV

84ms

Total

5188ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-25 19:37:05	3325ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-25 00:49:31	5188ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-09 20:01:41	1733ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-17 03:57:51	5665ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-15 10:04:47	1557ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-29 08:03:45	705ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-28 07:05:00	1864ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 20:58:38	1512ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 01:50:17	1614ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 02:35:43	683ms	2 NS 1 A 1 MX	🔒 Secure	View