n4.dk

📜 Historical scan 2026-08-10 21:19:36 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

n4.dk is a .dk domain served by 2 nameservers (riya.ns.cloudflare.com, syeef.ns.cloudflare.com). It was registered on 14 November 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.81.13 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.emailsrvr.com, mx2.emailsrvr.com. 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 251ms

Nameserver	IP addresses	PTR	ASN / ISP
riya.ns.cloudflare.com	108.162.194.155 162.159.38.155 172.64.34.155 2606:4700:50::a29f:269b 2803:f800:50::6ca2:c29b 2a06:98c1:50::ac40:229b	riya.ns.cloudflare.com riya.ns.cloudflare.com riya.ns.cloudflare.com riya.ns.cloudflare.com riya.ns.cloudflare.com riya.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
syeef.ns.cloudflare.com	108.162.195.238 162.159.44.238 172.64.35.238 2606:4700:58::a29f:2cee 2803:f800:50::6ca2:c3ee 2a06:98c1:50::ac40:23ee	syeef.ns.cloudflare.com syeef.ns.cloudflare.com syeef.ns.cloudflare.com syeef.ns.cloudflare.com syeef.ns.cloudflare.com syeef.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 247ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.81.13	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.155.231	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

2 records 256ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx1.emailsrvr.com	173.203.187.1	mx1.emailsrvr.com	AS27357 Rackspace Hosting
20	300s	mx2.emailsrvr.com	108.166.43.2 146.20.161.2 173.203.187.2 184.106.54.2	mx2.emailsrvr.com mx2.emailsrvr.com mx2.emailsrvr.com mx2.emailsrvr.com	AS19994 Rackspace Hosting AS27357 Rackspace Hosting AS27357 Rackspace Hosting AS19994 Rackspace Hosting

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	104.21.81.13

🔷 AAAA Records (IPv6)#

2 records 265ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:9be7	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3031::6815:510d	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 251ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.81.13,172.67.155.231 ech=AEX+DQBBdAAgACB1nM0hN9ZEjAKcEsuMEUCMsimB/ADQwrukW5OeS7G+PgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:9be7,2606:4700:3031::6815:510d

📝 TXT Records#

1 records 613ms

TXT Record
v=spf1 include:_spf.elasticemail.com include:emailsrvr.com ~all

✉️ SPF#

Policy	Record (n4.dk)
~all (soft fail)	v=spf1 include:_spf.elasticemail.com include:emailsrvr.com ~all

📨 DMARC#

Policy	Record (_dmarc.n4.dk)
p=reject	v=DMARC1; p=reject

📬 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 2026-10-16 22:48:40

www	104.21.81.13 172.67.155.231 2606:4700:3030::ac43:9be7 2606:4700:3031::6815:510d (AS13335) (address records, no CNAME)
www vs bare domain	Same network n4.dk: 104.21.81.13 172.67.155.231 2606:4700:3030::ac43:9be7 2606:4700:3031::6815:510d (AS13335) www.n4.dk: 104.21.81.13 172.67.155.231 2606:4700:3030::ac43:9be7 2606:4700:3031::6815:510d (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: 3/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

370ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2411805160
Primary NS (MNAME)	riya.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-09 11:38:38

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2015-11-14
Expires	2035-11-30 (3329d)

📋 WHOIS#

⏱️ Lookup Timing#

251ms

247ms

256ms

AAAA

265ms

TXT

613ms

CAA

259ms

HTTPS

251ms

TLSA

292ms

SOA

0ms

MTA-STS

334ms

DNSSEC

370ms

SRV

315ms

Total

3095ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-16 22:48:40	1017ms	2 NS 2 A 2 MX	🔒 Secure
2026-10-09 11:12:14	1802ms	2 NS 2 A 2 MX	🔒 Secure
2026-10-04 07:53:06	1782ms	2 NS 2 A 2 MX	🔒 Secure
2026-09-28 03:05:41	917ms	2 NS 2 A 2 MX	🔒 Secure
2026-09-27 08:08:26	1766ms	2 NS 2 A 2 MX	🔒 Secure
2026-09-07 19:44:21	2220ms	2 NS 2 A 2 MX	🔒 Secure
2026-08-27 15:27:37	2742ms	2 NS 2 A 2 MX	🔒 Secure
2026-08-10 21:19:36 shown	3095ms	2 NS 2 A 2 MX	🔒 Secure
2026-08-08 07:11:35	1421ms	2 NS 2 A 2 MX	🔒 Secure
2026-07-17 13:54:52	1815ms	2 NS 2 A 2 MX	🔒 Secure
2026-07-09 03:30:43	2148ms	2 NS 2 A 2 MX	🔒 Secure
2026-06-25 21:23:23	1027ms	2 NS 2 A 2 MX	🔒 Secure
2026-06-24 21:00:41	971ms	2 NS 2 A 2 MX	🔒 Secure
2026-06-20 04:46:58	839ms	2 NS 2 A 2 MX	🔒 Secure
2026-06-18 00:25:23	2726ms	2 NS 2 A 2 MX	🔒 Secure