cff.dk DNS records

🖥️ Nameservers2 records 50ms

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 33ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
212.97.141.159	600s	web16.curanet.dk	AS48854	team.blue Denmark A/S	212.97.140.0/22	🇩🇰 Denmark	—

📧 MX Records1 records 67ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	cff-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca09::2 2a01:111:f403:ca09::5 2a01:111:f403:ca09::6 52.101.103.140 52.101.181.153 52.101.68.27 52.101.73.145	mail-db7pr03cu00401.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-wa4pr04cu00101.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-am6pr02cu00301.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 → 40.104.188.248

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records3 records 177ms

TXT Record
ca3-9e254e697d274066b5f32e546d33d1db
MS=ms25304379
v=spf1 mx a include:dedicated.mysmtp.com a:mail.hhdrift.dk include:spf.protection.outlook.com include:rpost.net -all

✉️ SPF

Policy	Record (cff.dk)
-all (hard fail)	v=spf1 mx a include:dedicated.mysmtp.com a:mail.hhdrift.dk include:spf.protection.outlook.com include:rpost.net -all

📨 DMARC

Policy	Record (_dmarc.cff.dk)
p=none (monitor only)	v=DMARC1; p=none; sp=none; adkim=r; aspf=r; rua=mailto:abuse@cff.dk; ruf=mailto:abuse@cff.dk; fo=0; pct=100; ri=86400

📬 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)

🔐 DNSSEC85ms

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

🏷️ SOA0ms

Field	Value
Serial	2026033101
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

50ms

A

33ms

MX

67ms

AAAA

34ms

TXT

177ms

CAA

49ms

HTTPS

65ms

TLSA

238ms

SOA

0ms

MTA-STS

48ms

DNSSEC

85ms

SRV

65ms

Total

856ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 11:53:13	856ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 00:44:16	3076ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 00:24:33	950ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-21 04:01:10	700ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-19 20:23:12	1333ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 20:10:41	667ms	2 NS 1 A 1 MX	🔒 Secure	View