rbtgroup.dk

📜 Historical scan 2026-08-16 06:09:01 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rbtgroup.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 15 January 2025 (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 67ms

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 2026-10-09 18:02:08

www	NXDOMAIN
www vs bare domain	Neither resolves rbtgroup.dk: no address www.rbtgroup.dk: no address
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#

179ms

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	2025011501
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 2026-10-19 16:15:13

Field	Value
Registrar	Simply.com A/S
Registered	2025-01-15
Expires	2027-01-14 (83d)

🔗 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
syntropic.dk	Simply.com A/S

📋 WHOIS#

⏱️ Lookup Timing#

67ms

87ms

81ms

AAAA

67ms

TXT

227ms

CAA

80ms

HTTPS

75ms

TLSA

124ms

SOA

85ms

MTA-STS

65ms

DNSSEC

179ms

SRV

8044ms

Total

24590ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-03 16:02:34	433ms	3 NS 0 A 0 MX	🔒 Secure
2026-09-01 04:58:33	374ms	3 NS 0 A 0 MX	🔒 Secure
2026-08-16 06:09:01 shown	24590ms	3 NS 0 A 0 MX	🔒 Secure
2026-06-25 00:22:35	792ms	3 NS 0 A 0 MX	🔒 Secure
2026-06-24 01:53:50	1164ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-23 18:54:53	1026ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-21 00:43:15	414ms	3 NS 0 A 0 MX	🔒 Secure
2026-06-18 07:37:44	383ms	3 NS 0 A 0 MX	🔒 Secure