fff.dk DNS records

🖥️ Nameservers2 records 129ms

Nameserver	IP addresses	PTR	ASN / ISP
lisa.ns.cloudflare.com	108.162.192.131 172.64.32.131 173.245.58.131 2606:4700:50::adf5:3a83 2803:f800:50::6ca2:c083 2a06:98c1:50::ac40:2083	lisa.ns.cloudflare.com lisa.ns.cloudflare.com lisa.ns.cloudflare.com lisa.ns.cloudflare.com lisa.ns.cloudflare.com lisa.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
max.ns.cloudflare.com	108.162.193.132 172.64.33.132 173.245.59.132 2606:4700:58::adf5:3b84 2803:f800:50::6ca2:c184 2a06:98c1:50::ac40:2184	max.ns.cloudflare.com max.ns.cloudflare.com max.ns.cloudflare.com max.ns.cloudflare.com max.ns.cloudflare.com max.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 91ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.33.19	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.157.153	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 121ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	fff-dk.mail.protection.outlook.com	2a01:111:f403:ca04::5 2a01:111:f403:ca04::8 2a01:111:f403:ca09::20 2a01:111:f403:ca09::3 52.101.68.0 52.101.68.5 52.101.73.12 52.101.73.30	mail-db3pr0202cu00205.inbound.protection.outlook.com mail-db5pr02cu00100.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-am4pr0401cu00104.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)2 records 136ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::ac43:9d99	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::6815:2113	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 126ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.33.19,172.67.157.153 ech=AEX+DQBBWwAgACAt91oP6QVGkKWSxlyoN2RIo/TaatRgOaebxvLOi+SdLgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:9d99,2606:4700:3035::6815:2113

📝 TXT Records1 records 277ms

TXT Record
v=spf1 ip4:213.199.132.245 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (fff.dk)
-all (hard fail)	v=spf1 ip4:213.199.132.245 include:spf.protection.outlook.com -all

📨 DMARC

Policy	Record (_dmarc.fff.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:it-infrastruktur@fff.dk; ruf=mailto:it-infrastruktur@fff.dk;

📬 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)

🔐 DNSSEC167ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA0ms

Field	Value
Serial	2409530958
Primary NS (MNAME)	lisa.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

129ms

A

91ms

MX

121ms

AAAA

136ms

TXT

277ms

CAA

131ms

HTTPS

126ms

TLSA

186ms

SOA

0ms

MTA-STS

133ms

DNSSEC

167ms

SRV

257ms

Total

1709ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-07-16 06:01:11	1709ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-02 00:04:04	1417ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-17 09:19:23	2515ms	2 NS 2 A 1 MX	🔓 Insecure	View