format-4.dk

📜 Historical scan 2026-07-02 00:18:14 · ← 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 49ms

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 47ms

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 63ms

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

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	104.21.30.10
🔶 Autoconfig	104.21.30.10

🔷 AAAA Records (IPv6)#

2 records 45ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::ac43:962e	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:1e0a	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 54ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.30.10,172.67.150.46 ech=AEX+DQBBbQAgACDRh8EBBYsg5gKR/MjDbn7NihoT9MYyzy/BWffmjeQMZwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:962e,2606:4700:3036::6815:1e0a

📝 TXT Records#

1 records 224ms

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#

149ms

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

🏷️ SOA#

43ms

Field	Value
Serial	2405602556
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#

49ms

47ms

63ms

AAAA

45ms

TXT

224ms

CAA

45ms

HTTPS

54ms

TLSA

53ms

SOA

43ms

MTA-STS

59ms

DNSSEC

149ms

SRV

77ms

Total

882ms

🕐 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	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 shown	882ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 09:21:06	870ms	2 NS 2 A 0 MX	🔓 Insecure