rfcfan.dk

📜 Historical scan 2026-06-21 10:10:06 · ← Latest scan

rfcfan.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 31 January 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. 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 73ms

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

🌍

No A records found

📧 MX Records

📧

No MX records found

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 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 2026-10-02 21:16:40

www	NXDOMAIN
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

216ms

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

🏷️ SOA

76ms

Field	Value
Serial	2023013103
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 2026-10-02 21:50:33

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2023-01-31
Expires	2027-01-30 (119d)

📋 WHOIS

⏱️ Lookup Timing

73ms

75ms

86ms

AAAA

97ms

TXT

377ms

CAA

84ms

HTTPS

83ms

TLSA

38ms

SOA

76ms

MTA-STS

76ms

DNSSEC

216ms

SRV

263ms

Total

649ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-10-02 21:16:40	280ms	3 NS 0 A 0 MX	🔒 Secure
2026-09-30 21:10:40	322ms	3 NS 0 A 0 MX	🔒 Secure
2026-09-29 15:56:06	304ms	3 NS 0 A 0 MX	🔒 Secure
2026-09-27 09:17:13	376ms	3 NS 0 A 0 MX	🔒 Secure
2026-08-27 14:18:53	545ms	3 NS 0 A 0 MX	🔒 Secure
2026-08-27 01:50:08	522ms	3 NS 0 A 0 MX	🔒 Secure
2026-07-31 13:32:03	16669ms	3 NS 0 A 0 MX	🔒 Secure
2026-07-01 15:54:40	459ms	3 NS 0 A 0 MX	🔒 Secure
2026-06-21 10:10:06 shown	649ms	3 NS 0 A 0 MX	🔒 Secure
2026-06-21 08:25:50	1140ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 23:25:27	378ms	3 NS 0 A 0 MX	🔒 Secure
2026-06-20 15:42:35	1184ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 21:58:37	497ms	3 NS 0 A 0 MX	🔒 Secure