format-4.dk

📜 Historical scan 2026-09-11 20:00:15 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

format-4.dk is a .dk domain served by 2 nameservers (rocco.ns.cloudflare.com, sandra.ns.cloudflare.com). It was registered on 19 April 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.30.10 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by .. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 48ms

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 Records#

2 records 71ms

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 Records#

1 records 74ms

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	172.67.150.46

🔷 AAAA Records (IPv6)#

2 records 55ms

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 Records#

1 records 56ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.30.10,172.67.150.46 ech=AEX+DQBBCwAgACCc0TGv9Vauo9O0ySjJxAK6ZMTRc3ZzZmchKcjBvnm/YgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:962e,2606:4700:3032::6815:1e0a

📝 TXT Records#

1 records 258ms

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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-11 21:48:13

www	104.21.30.10 172.67.150.46 2606:4700:3031::ac43:962e 2606:4700:3032::6815:1e0a (AS13335) (address records, no CNAME)
www vs bare domain	Same network format-4.dk: 104.21.30.10 172.67.150.46 2a06:98c1:3120::1 2a06:98c1:3121::1 (AS13335) www.format-4.dk: 104.21.30.10 172.67.150.46 2606:4700:3031::ac43:962e 2606:4700:3032::6815:1e0a (AS13335)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

97ms

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

🏷️ SOA#

0ms

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#

WHOIS fetched 2026-10-10 09:23:56

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2006-04-19
Expires	2027-04-30 (192d)

📋 WHOIS#

⏱️ Lookup Timing#

48ms

71ms

74ms

AAAA

55ms

TXT

258ms

CAA

41ms

HTTPS

56ms

TLSA

83ms

SOA

0ms

MTA-STS

69ms

DNSSEC

97ms

SRV

111ms

Total

1271ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-01 07:06:38	609ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-25 18:17:47	709ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-24 18:05:05	1906ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-11 20:00:15 shown	1271ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-02 09:38:19	1230ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-28 14:46:48	1486ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-27 12:15:48	1883ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-02 00:18:14	882ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 09:21:06	870ms	2 NS 2 A 0 MX	🔓 Insecure