4xk.dk

📜 Historical scan 2026-09-23 16:43:02 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

4xk.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 8 January 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 162.159.143.30 is hosted by Cloudflare, Inc. (AS13335) in United States. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. 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
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

2 records 33ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
162.159.143.30	3600s	—	AS13335	Cloudflare, Inc.	162.159.128.0/19	🇺🇸 United States	—
172.66.3.26	3600s	—	AS13335	Cloudflare, Inc.	172.66.0.0/22	🇺🇸 United States	—

📧 MX Records#

5 records 53ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	43200s	aspmx.l.google.com	209.85.233.27 2a00:1450:4010:c20::1a	lr-in-f27.1e100.net yulppbn-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	43200s	alt1.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1b	lcdels-in-f27.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	43200s	alt2.aspmx.l.google.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1a	yukulwh-in-f27.1e100.net mad01s14-in-f27.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	43200s	alt3.aspmx.l.google.com	172.253.158.26 2404:6800:4003:c26::1a	so-in-f26.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	43200s	alt4.aspmx.l.google.com	108.177.125.27 2404:6800:4008:c01::1b	tp-in-f27.1e100.net tp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 163ms

TXT Record
google-site-verification=QqCFNsQwGFUieSYe8Bz_3dR28vcG0zaWDb-bomYWFjE

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-13 19:04:57

www CNAME	custom-domains.chatgpt.site (all on chatgpt.site) → 104.18.22.186 104.18.23.186 2606:4700::6812:16ba 2606:4700::6812:17ba (AS13335)
www vs bare domain	Same network 4xk.dk: 162.159.143.30 172.66.3.26 (AS13335) www.4xk.dk: 104.18.22.186 104.18.23.186 2606:4700::6812:16ba 2606:4700::6812:17ba (AS13335)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

77ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026091101
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-12 20:36:43

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2001-01-08
Expires	2027-03-31 (164d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

48ms

33ms

53ms

AAAA

36ms

TXT

163ms

CAA

38ms

HTTPS

48ms

TLSA

120ms

SOA

0ms

MTA-STS

52ms

DNSSEC

77ms

SRV

59ms

Total

723ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 19:04:57	697ms	2 NS 2 A 5 MX	🔒 Secure
2026-10-08 01:28:24	565ms	2 NS 2 A 5 MX	🔒 Secure
2026-09-30 19:30:00	768ms	2 NS 2 A 5 MX	🔒 Secure
2026-09-23 16:43:02 shown	723ms	2 NS 2 A 5 MX	🔒 Secure
2026-09-15 08:43:46	998ms	2 NS 2 A 5 MX	🔒 Secure
2026-08-13 08:11:57	4526ms	2 NS 2 A 5 MX	🔒 Secure
2026-07-29 12:02:01	2361ms	2 NS 2 A 5 MX	🔒 Secure
2026-07-14 16:12:42	1334ms	2 NS 0 A 5 MX	🔒 Secure
2026-07-01 04:56:14	657ms	2 NS 0 A 5 MX	🔒 Secure
2026-06-16 12:39:00	706ms	2 NS 0 A 5 MX	🔒 Secure