rcn.dk

📜 Historical scan 2026-06-18 06:57:47 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rcn.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 21 December 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.103.100 is hosted by team.blue Denmark A/S (AS48854) in Denmark. 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#

3 records 22ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 22ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.103.100	—	dnsforward.simply.com	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records#

5 records 22ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	—	aspmx.l.google.com	2a00:1450:4010:c01::1b 2a00:1450:4010:c01::1b 64.233.161.27	lh-in-f27.1e100.net lh-in-x1b.1e100.net lh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	—	alt1.aspmx.l.google.com	192.178.211.27 2404:6800:4000:1025::1b	lcbomp-in-f27.1e100.net lcbomp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	—	alt2.aspmx.l.google.com	108.177.125.27 2404:6800:4008:c01::1a	tp-in-f27.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	—	aspmx2.googlemail.com	172.253.158.27 2404:6800:4003:c26::1b	so-in-f27.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	—	aspmx3.googlemail.com	108.177.125.27 2404:6800:4008:c01::1a	tp-in-f27.1e100.net tp-in-f26.1e100.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 166ms

TXT Record
google-site-verification=dDk-iXRbVW827EWwSGYn5641v6pb4HRpJ4eNWfLfo5Q

✉️ 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 2026-10-12 23:51:16

www	94.231.103.100 (AS48854) (address records, no CNAME)
www vs bare domain	Same network rcn.dk: 94.231.103.100 (AS48854) www.rcn.dk: 94.231.103.100 (AS48854)
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
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#

95ms

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

🏷️ SOA#

19ms

Field	Value
Serial	2023112711
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-08 14:32:10

Field	Value
Registrar	Simply.com A/S
Registered	2010-12-21
Expires	2026-12-31 (71d)

📋 WHOIS#

⏱️ Lookup Timing#

22ms

AAAA

22ms

TXT

166ms

CAA

20ms

HTTPS

20ms

TLSA

1719ms

SOA

19ms

MTA-STS

86ms

DNSSEC

95ms

SRV

198ms

Total

2424ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 23:51:16	817ms	3 NS 1 A 5 MX	🔒 Secure
2026-10-10 14:37:31	836ms	3 NS 1 A 5 MX	🔒 Secure
2026-10-09 13:47:24	490ms	3 NS 1 A 5 MX	🔒 Secure
2026-10-03 01:15:47	2483ms	3 NS 1 A 5 MX	🔒 Secure
2026-10-01 01:12:26	517ms	3 NS 1 A 5 MX	🔒 Secure
2026-09-25 06:34:36	638ms	3 NS 1 A 5 MX	🔒 Secure
2026-08-27 19:20:09	700ms	3 NS 1 A 5 MX	🔒 Secure
2026-06-24 15:18:27	767ms	3 NS 1 A 5 MX	🔒 Secure
2026-06-23 16:23:59	730ms	3 NS 1 A 5 MX	🔒 Secure
2026-06-18 06:57:47 shown	2424ms	3 NS 1 A 5 MX	🔒 Secure