4dd0.dk

📜 Historical scan 2026-09-28 11:40:43 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

4dd0.dk is a .dk domain served by 2 nameservers (chad.ns.cloudflare.com, kate.ns.cloudflare.com). It was registered on 9 June 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.41.41 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is DNSSEC-signed and validates, 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 39ms

Nameserver	IP addresses	PTR	ASN / ISP
chad.ns.cloudflare.com	108.162.193.82 172.64.33.82 173.245.59.82 2606:4700:58::adf5:3b52 2803:f800:50::6ca2:c152 2a06:98c1:50::ac40:2152	chad.ns.cloudflare.com chad.ns.cloudflare.com chad.ns.cloudflare.com chad.ns.cloudflare.com chad.ns.cloudflare.com chad.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
kate.ns.cloudflare.com	108.162.192.124 172.64.32.124 173.245.58.124 2606:4700:50::adf5:3a7c 2803:f800:50::6ca2:c07c 2a06:98c1:50::ac40:207c	kate.ns.cloudflare.com kate.ns.cloudflare.com kate.ns.cloudflare.com kate.ns.cloudflare.com kate.ns.cloudflare.com kate.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 35ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.41.41	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.159.249	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

5 records 37ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	86400s	aspmx.l.google.com	209.85.233.26 2a00:1450:4010:c07::1b 2a00:1450:4010:c07::1b	lr-in-f26.1e100.net lf-in-x1b.1e100.net lf-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	86400s	alt1.aspmx.l.google.com	192.178.158.26 2404:6800:4013:813::1b	lcdels-in-f26.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	86400s	alt2.aspmx.l.google.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1b	mad01s14-in-f27.1e100.net yukulwh-in-f27.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	86400s	aspmx2.googlemail.com	192.178.158.26 2404:6800:4013:813::1a	lcdels-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	86400s	aspmx3.googlemail.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1b	mad01s14-in-f27.1e100.net yukulwh-in-f27.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records 39ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:2929	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3031::ac43:9ff9	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 39ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.41.41,172.67.159.249 ech=AEX+DQBBfAAgACBWCsRplS/msfOCRmIoI2EtABHrM05CU7Ko+VIGtpAuRgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:2929,2606:4700:3031::ac43:9ff9

📝 TXT Records#

3 records 156ms

TXT Record
google-site-verification=_W0Ca7aDWWCt3sLwsQ2wYRdLSwRk3JqJGkrpt7_C3ns
v=DMARC1; p=none; rua=mailto:postmaster@4dd0.dk
v=spf1 include:_spf.google.com ~all

✉️ SPF#

Policy	Record (4dd0.dk)
~all (soft fail)	v=spf1 include:_spf.google.com ~all

📨 DMARC#

Policy	Record (_dmarc.4dd0.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:43f936901bc0466086fef82333671a3c@dmarc-reports.cloudflare.net

📬 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 2026-10-14 22:10:27

www	104.21.41.41 172.67.159.249 2606:4700:3031::6815:2929 2606:4700:3031::ac43:9ff9 (AS13335) (address records, no CNAME)
www vs bare domain	Same network 4dd0.dk: 104.21.41.41 172.67.159.249 2606:4700:3031::6815:2929 2606:4700:3031::ac43:9ff9 (AS13335) www.4dd0.dk: 104.21.41.41 172.67.159.249 2606:4700:3031::6815:2929 2606:4700:3031::ac43:9ff9 (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

106ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

0ms

Field	Value
Serial	2416000315
Primary NS (MNAME)	chad.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 02:23:36

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2011-06-09
Expires	2027-06-30 (255d)

📋 WHOIS#

⏱️ Lookup Timing#

39ms

35ms

37ms

AAAA

39ms

TXT

156ms

CAA

32ms

HTTPS

39ms

TLSA

195ms

SOA

0ms

MTA-STS

57ms

DNSSEC

106ms

SRV

59ms

Total

937ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-14 22:10:27	852ms	2 NS 2 A 5 MX	🔒 Secure
2026-10-09 13:11:56	579ms	2 NS 2 A 5 MX	🔒 Secure
2026-09-30 21:58:26	1206ms	2 NS 2 A 5 MX	🔒 Secure
2026-09-28 11:40:43 shown	937ms	2 NS 2 A 5 MX	🔒 Secure
2026-09-23 11:14:06	1224ms	2 NS 2 A 5 MX	🔒 Secure
2026-09-18 10:59:44	1403ms	2 NS 2 A 5 MX	🔒 Secure
2026-08-27 14:52:57	1149ms	2 NS 2 A 5 MX	🔒 Secure
2026-08-09 13:29:59	1653ms	2 NS 2 A 5 MX	🔒 Secure
2026-07-31 19:44:30	2130ms	2 NS 2 A 5 MX	🔒 Secure
2026-07-20 08:52:10	1254ms	2 NS 2 A 5 MX	🔒 Secure
2026-07-12 04:58:11	1633ms	2 NS 2 A 5 MX	🔒 Secure
2026-06-23 04:31:16	1171ms	2 NS 2 A 5 MX	🔒 Secure
2026-06-16 13:14:20	790ms	2 NS 2 A 5 MX	🔒 Secure