rcjn.dk

📜 Historical scan 2026-07-08 12:53:24 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rcjn.dk is a .dk domain served by 2 nameservers (anna.ns.cloudflare.com, harlan.ns.cloudflare.com). It was registered on 1 February 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.36.46 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by route3.mx.cloudflare.net, route2.mx.cloudflare.net and 1 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 89ms

Nameserver	IP addresses	PTR	ASN / ISP
anna.ns.cloudflare.com	108.162.192.102 172.64.32.102 173.245.58.102 2606:4700:50::adf5:3a66 2803:f800:50::6ca2:c066 2a06:98c1:50::ac40:2066	anna.ns.cloudflare.com anna.ns.cloudflare.com anna.ns.cloudflare.com anna.ns.cloudflare.com anna.ns.cloudflare.com anna.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
harlan.ns.cloudflare.com	108.162.195.250 162.159.44.250 172.64.35.250 2606:4700:58::a29f:2cfa 2803:f800:50::6ca2:c3fa 2a06:98c1:50::ac40:23fa	harlan.ns.cloudflare.com harlan.ns.cloudflare.com harlan.ns.cloudflare.com harlan.ns.cloudflare.com harlan.ns.cloudflare.com harlan.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 91ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.36.46	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.185.51	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

3 records 115ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
17	300s	route3.mx.cloudflare.net	162.159.205.23 162.159.205.24 162.159.205.25 2606:4700:f5::11 2606:4700:f5::12 2606:4700:f5::13	route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net — route3.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
28	300s	route2.mx.cloudflare.net	162.159.205.17 162.159.205.18 162.159.205.19 2606:4700:f5::10 2606:4700:f5::e 2606:4700:f5::f	route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
80	300s	route1.mx.cloudflare.net	162.159.205.11 162.159.205.12 162.159.205.13 2606:4700:f5::b 2606:4700:f5::c 2606:4700:f5::d	route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🔷 AAAA Records (IPv6)#

2 records 62ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::6815:242e	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:b933	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 87ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.36.46,172.67.185.51 ech=AEX+DQBBDAAgACDzPyb+KnlKO5ZYwlSA22H3fz6Z7EBsnDuiZgFbMmhGBwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:242e,2606:4700:3033::ac43:b933

📝 TXT Records#

1 records 203ms

TXT Record
v=spf1 include:_spf.mx.cloudflare.net ~all

✉️ SPF#

Policy	Record (rcjn.dk)
~all (soft fail)	v=spf1 include:_spf.mx.cloudflare.net ~all

📨 DMARC#

Policy	Record (_dmarc.rcjn.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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 2026-10-22 15:02:30

www	Exists, no address
www vs bare domain	www does not resolve rcjn.dk: 168.231.115.134 (AS47583) www.rcjn.dk: no address (all like this)
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#

9 records 118ms

Service / Owner	Type	Cert association
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…

🔐 DNSSEC#

197ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2408812911
Primary NS (MNAME)	anna.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-22 15:24:03

Field	Value
Registrar	nordicway ApS
Registered	2026-02-01
Expires	2027-01-31 (99d)

🔗 Same registrant#

1 domain

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
inviteflow.dk	nordicway ApS

📋 WHOIS#

⏱️ Lookup Timing#

89ms

91ms

115ms

AAAA

62ms

TXT

203ms

CAA

97ms

HTTPS

87ms

TLSA

118ms

SOA

0ms

MTA-STS

80ms

DNSSEC

197ms

SRV

136ms

Total

18039ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-22 15:02:30	2112ms	2 NS 1 A 0 MX	🔒 Secure
2026-10-18 17:24:56	504ms	2 NS 1 A 0 MX	🔒 Secure
2026-10-11 06:02:26	491ms	2 NS 1 A 0 MX	🔒 Secure
2026-09-29 20:26:31	478ms	2 NS 1 A 0 MX	🔒 Secure
2026-09-27 01:23:53	790ms	2 NS 1 A 0 MX	🔒 Secure
2026-09-22 04:43:05	1456ms	2 NS 1 A 0 MX	🔒 Secure
2026-09-13 18:47:23	674ms	2 NS 1 A 0 MX	🔒 Secure
2026-09-04 11:40:45	657ms	2 NS 1 A 0 MX	🔒 Secure
2026-08-27 16:47:11	811ms	2 NS 1 A 0 MX	🔒 Secure
2026-08-23 22:21:09	3070ms	2 NS 1 A 0 MX	🔒 Secure
2026-08-19 21:16:10	1986ms	2 NS 1 A 0 MX	🔒 Secure
2026-08-18 21:11:16	14700ms	2 NS 1 A 0 MX	🔒 Secure
2026-08-12 05:57:33	3947ms	2 NS 1 A 0 MX	🔒 Secure
2026-08-01 21:58:55	663ms	2 NS 0 A 0 MX	🔒 Secure
2026-07-16 10:08:35	2659ms	2 NS 0 A 0 MX	🔒 Secure
2026-07-14 05:32:48	9541ms	2 NS 2 A 3 MX	🔒 Secure
2026-07-08 12:53:24 shown	18039ms	2 NS 2 A 3 MX	🔒 Secure
2026-06-24 17:14:50	1225ms	2 NS 2 A 3 MX	🔒 Secure
2026-06-22 22:06:37	1115ms	2 NS 2 A 3 MX	🔒 Secure
2026-06-21 10:41:08	1946ms	2 NS 2 A 3 MX	🔒 Secure
2026-06-18 05:10:55	1362ms	2 NS 2 A 3 MX	🔒 Secure