format-4.dk DNS records

🖥️ Nameservers2 records 41ms

Nameserver	IP addresses	PTR	ASN / ISP
rocco.ns.cloudflare.com	108.162.195.121 162.159.44.121 172.64.35.121 2606:4700:58::a29f:2c79 2803:f800:50::6ca2:c379 2a06:98c1:50::ac40:2379	rocco.ns.cloudflare.com rocco.ns.cloudflare.com rocco.ns.cloudflare.com rocco.ns.cloudflare.com rocco.ns.cloudflare.com rocco.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
sandra.ns.cloudflare.com	108.162.194.34 162.159.38.34 172.64.34.34 2606:4700:50::a29f:2622 2803:f800:50::6ca2:c222 2a06:98c1:50::ac40:2222	sandra.ns.cloudflare.com sandra.ns.cloudflare.com sandra.ns.cloudflare.com sandra.ns.cloudflare.com sandra.ns.cloudflare.com sandra.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 62ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.30.10	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.150.46	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 50ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	. Null MX — domain accepts no email (RFC 7505)

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	172.67.150.46
🔶 Autoconfig	104.21.30.10

🔷 AAAA Records (IPv6)2 records 51ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::ac43:962e	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3032::6815:1e0a	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 51ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.30.10,172.67.150.46 ech=AEX+DQBB3AAgACAYhJP2jDWZP3VDeMg0y3bnJz+x8Q9dt+oeiOoeUA3eCwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:962e,2606:4700:3032::6815:1e0a

📝 TXT Records1 records 227ms

TXT Record
v=spf1 -all

✉️ SPF

Policy	Record (format-4.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC

Policy	Record (_dmarc.format-4.dk)
p=reject	v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s;

📬 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)

🔐 DNSSEC97ms

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	2410715914
Primary NS (MNAME)	rocco.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

41ms

A

62ms

MX

50ms

AAAA

51ms

TXT

227ms

CAA

46ms

HTTPS

51ms

TLSA

70ms

SOA

0ms

MTA-STS

75ms

DNSSEC

97ms

SRV

100ms

Total

1230ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-02 09:38:19	1230ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-28 14:46:48	1486ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-27 12:15:48	1883ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-02 00:18:14	882ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-17 09:21:06	870ms	2 NS 2 A 0 MX	🔓 Insecure	View