cfu-net.dk DNS records

🖥️ Nameservers2 records 48ms

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 52ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.59.228.202	600s	cfu-net.dk	AS47292	Sentia Denmark A/S	185.59.228.0/22	🇩🇰 Denmark	—

📧 MX Records1 records 35ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	600s	cfunet-dk0i.mail.protection.outlook.com	2a01:111:f403:ca04:: 2a01:111:f403:ca04::9 2a01:111:f403:ca21::e 2a01:111:f403:ca48::12 52.101.209.153 52.101.68.39 52.101.73.145 52.101.73.15	mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-matpr04cu00306.inbound.protection.outlook.com mail-miypr05cu00202.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-am6pr02cu00301.inbound.protection.outlook.com mail-am9pr04cu00107.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 → 40.104.116.8

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 152ms

TXT Record
MS=ms52824267
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (cfu-net.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)

🔐 DNSSEC2069ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081101
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 RegistrationWHOIS fetched 2026-07-12 13:34:27

Field	Value
Registrar	ONE.COM A/S
Registered	1998-09-24
Expires	2026-09-30 (22d)

📋 WHOIS

⏱️ Lookup Timing

NS

48ms

A

52ms

MX

35ms

AAAA

51ms

TXT

152ms

CAA

38ms

HTTPS

41ms

TLSA

371ms

SOA

0ms

MTA-STS

50ms

DNSSEC

2069ms

SRV

53ms

Total

2846ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-05 02:43:53	2846ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-11 23:47:43	1126ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-18 17:12:16	9096ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-12 13:33:04	1302ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 21:06:45	658ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 12:13:50	3190ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 04:36:40	984ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-18 18:28:51	10469ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 20:10:48	763ms	2 NS 1 A 1 MX	🔒 Secure	View