cffs.dk DNS records

🖥️ Nameservers4 records 41ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records1 records 32ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.103.100	600s	dnsforward.simply.com	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records1 records 43ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	cffs-dk.mail.protection.outlook.com	2a01:111:f403:ca04::5 2a01:111:f403:ca09::2 2a01:111:f403:ca09::b 2a01:111:f403:ca48::12 52.101.73.123 52.101.73.19 52.101.73.2 52.101.73.26	mail-db3pr0202cu00205.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-miypr05cu00202.inbound.protection.outlook.com mail-am6pr02cu00203.inbound.protection.outlook.com mail-as8pr04cu00803.inbound.protection.outlook.com mail-as9pr07cu00302.inbound.protection.outlook.com mail-as9pr05cu01302.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

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 147ms

TXT Record
protonmail-verification=b8e05e273e88a72689a98792b0d92ec527d7e0aa
v=spf1 include:spf.protection.outlook.com ip4:20.61.125.223 -all

✉️ SPF

Policy	Record (cffs.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com ip4:20.61.125.223 -all

📨 DMARC

Policy	Record (_dmarc.cffs.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:kw4mtjma@ag.eu.dmarcian.com; ruf=mailto:kw4mtjma@fr.eu.dmarcian.com; fo=1;

📬 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

🏷️ SOA0ms

Field	Value
Serial	2026060900
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

41ms

A

32ms

MX

43ms

AAAA

53ms

TXT

147ms

CAA

35ms

HTTPS

41ms

TLSA

331ms

SOA

0ms

MTA-STS

51ms

DNSSEC

83ms

SRV

62ms

Total

847ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-01 14:48:06	847ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-08-26 13:45:50	1197ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-07-02 00:27:43	1147ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 20:10:43	674ms	4 NS 1 A 1 MX	🔒 Secure	View