n4s.dk

📜 Historical scan 2026-09-23 19:00:11 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

n4s.dk is a .dk domain served by 2 nameservers (fred.ns.cloudflare.com, iris.ns.cloudflare.com). It was registered on 27 November 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.57.250 is hosted by Cloudflare, Inc. (AS13335). The zone is not DNSSEC-signed, has no 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 38ms

Nameserver	IP addresses	PTR	ASN / ISP
fred.ns.cloudflare.com	108.162.193.113 172.64.33.113 173.245.59.113 2606:4700:58::adf5:3b71 2803:f800:50::6ca2:c171 2a06:98c1:50::ac40:2171	fred.ns.cloudflare.com fred.ns.cloudflare.com fred.ns.cloudflare.com fred.ns.cloudflare.com fred.ns.cloudflare.com fred.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
iris.ns.cloudflare.com	108.162.192.118 172.64.32.118 173.245.58.118 2606:4700:50::adf5:3a76 2803:f800:50::6ca2:c076 2a06:98c1:50::ac40:2076	iris.ns.cloudflare.com iris.ns.cloudflare.com iris.ns.cloudflare.com iris.ns.cloudflare.com iris.ns.cloudflare.com iris.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 36ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.57.250	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.152.238	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	5.186.50.174
🔶 Autoconfig	5.186.50.174

🔷 AAAA Records (IPv6)#

2 records 42ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:39fa	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3030::ac43:98ee	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 34ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.57.250,172.67.152.238 ech=AEX+DQBBugAgACCn1R8fSm59KslxYzTc8XhQZFLqU5RLYGsYztQqgHu2WAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:39fa,2606:4700:3030::ac43:98ee

📝 TXT Records#

📝

No TXT records found

✉️ 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 2026-10-09 17:14:10

www	104.21.57.250 172.67.152.238 2606:4700:3030::6815:39fa 2606:4700:3030::ac43:98ee (AS13335) (address records, no CNAME)
www vs bare domain	Same network n4s.dk: 104.21.57.250 172.67.152.238 2606:4700:3030::6815:39fa 2606:4700:3030::ac43:98ee (AS13335) www.n4s.dk: 104.21.57.250 172.67.152.238 2606:4700:3030::6815:39fa 2606:4700:3030::ac43:98ee (AS13335)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

115ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2415198837
Primary NS (MNAME)	fred.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-05 06:28:13

Field	Value
Registrar	Simply.com A/S
Registered	2021-11-27
Expires	2026-11-26 (37d)

📋 WHOIS#

⏱️ Lookup Timing#

38ms

36ms

45ms

AAAA

42ms

TXT

218ms

CAA

43ms

HTTPS

34ms

TLSA

65ms

SOA

0ms

MTA-STS

59ms

DNSSEC

115ms

SRV

95ms

Total

736ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 17:14:10	402ms	2 NS 2 A 0 MX	🔓 Insecure
2026-10-05 05:57:33	1277ms	2 NS 2 A 0 MX	🔓 Insecure
2026-10-02 05:26:52	595ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-30 05:03:29	576ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-23 19:00:11 shown	736ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-17 14:28:22	1402ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-23 14:24:59	2915ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-07 12:38:24	867ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-02 20:19:31	977ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-17 06:55:44	1201ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-05 18:56:37	18645ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-18 02:57:53	744ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-18 02:57:31	2578ms	2 NS 2 A 0 MX	🔓 Insecure