rtens.dk

Records from scan: 2026-10-19 13:20:48 · 1737ms total · last checked 2026-10-20 16:28 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rtens.dk is a .dk domain served by 2 nameservers (laila.ns.cloudflare.com, ray.ns.cloudflare.com). It was registered on 24 December 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mail.protonmail.ch, mailsec.protonmail.ch. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 129ms

Nameserver	IP addresses	PTR	ASN / ISP
laila.ns.cloudflare.com	108.162.194.122 162.159.38.122 172.64.34.122 2606:4700:50::a29f:267a 2803:f800:50::6ca2:c27a 2a06:98c1:50::ac40:227a	laila.ns.cloudflare.com laila.ns.cloudflare.com laila.ns.cloudflare.com laila.ns.cloudflare.com laila.ns.cloudflare.com laila.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
ray.ns.cloudflare.com	108.162.193.138 172.64.33.138 173.245.59.138 2606:4700:58::adf5:3b8a 2803:f800:50::6ca2:c18a 2a06:98c1:50::ac40:218a	ray.ns.cloudflare.com ray.ns.cloudflare.com ray.ns.cloudflare.com ray.ns.cloudflare.com ray.ns.cloudflare.com ray.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

🌍

No A records found

📧 MX Records#

2 records 149ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mail.protonmail.ch	176.119.200.128 185.205.70.128 185.70.42.128	mail.protonmail.ch mail.protonmail.ch mail.protonmail.ch	AS62371 Proton AG AS62371 Proton AG AS62371 Proton AG
20	300s	mailsec.protonmail.ch	176.119.200.129 185.205.70.129 185.70.42.129	mailsec.protonmail.ch mailsec.protonmail.ch mailsec.protonmail.ch	AS62371 Proton AG AS62371 Proton AG AS62371 Proton AG

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 257ms

TXT Record
protonmail-verification=b5dce595a854d56bd25456c6ec86e7fa370866e3
v=spf1 include:_spf.protonmail.ch ~all

✉️ SPF#

Policy	Record (rtens.dk)
~all (soft fail)	v=spf1 include:_spf.protonmail.ch ~all

📨 DMARC#

Policy	Record (_dmarc.rtens.dk)
p=quarantine	v=DMARC1; p=quarantine

📬 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#

checked 2026-10-19 13:20:48

www	Exists, no address
www vs bare domain	Neither resolves rtens.dk: no address www.rtens.dk: no address
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: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

4 records 59ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mail.protonmail.ch	DANE-EE · SPKI · SHA-256	76BB66711DA416433CA890A5B2E5A053…
SMTP _25._tcp.mail.protonmail.ch	DANE-EE · SPKI · SHA-256	6111A5698D23C89E09C36FF833C1487E…
SMTP _25._tcp.mailsec.protonmail.ch	DANE-EE · SPKI · SHA-256	76BB66711DA416433CA890A5B2E5A053…
SMTP _25._tcp.mailsec.protonmail.ch	DANE-EE · SPKI · SHA-256	6111A5698D23C89E09C36FF833C1487E…

🔐 DNSSEC#

197ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

85ms

Field	Value
Serial	2417844084
Primary NS (MNAME)	laila.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-14 06:09:03

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2009-12-24
Expires	2026-12-31 (69d)

🔗 Same registrant#

2 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).

Domain	Registrar
krolykke.dk	Punktum dk A/S (direct)
pxe.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

129ms

102ms

149ms

AAAA

108ms

TXT

257ms

CAA

105ms

HTTPS

135ms

TLSA

59ms

SOA

85ms

MTA-STS

140ms

DNSSEC

197ms

SRV

142ms

Total

1737ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-19 13:20:48 shown	1737ms	2 NS 0 A 2 MX	🔒 Secure
2026-09-29 20:01:39	1237ms	2 NS 0 A 2 MX	🔒 Secure
2026-09-25 19:25:52	875ms	2 NS 0 A 2 MX	🔒 Secure
2026-09-23 19:53:49	723ms	2 NS 0 A 2 MX	🔒 Secure
2026-09-05 20:58:32	1562ms	2 NS 0 A 2 MX	🔒 Secure
2026-08-10 03:41:10	1414ms	2 NS 0 A 2 MX	🔒 Secure
2026-08-01 06:04:16	1411ms	2 NS 0 A 2 MX	🔒 Secure
2026-07-25 01:00:21	1579ms	2 NS 0 A 2 MX	🔒 Secure
2026-07-16 02:49:47	10200ms	2 NS 0 A 2 MX	🔒 Secure
2026-06-27 23:37:01	1059ms	2 NS 0 A 2 MX	🔒 Secure
2026-06-18 04:49:04	1033ms	2 NS 0 A 2 MX	🔒 Secure