3group.dk

Records from scan: 2026-10-14 16:21:22 · 551ms total · last checked 2026-10-17 19:38 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

3group.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 28 July 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.213.130 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by .. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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 36ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 37ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.130	3600s	webcluster1.webpod14-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records#

1 records 40ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	. Null MX — domain accepts no email (RFC 7505)

🔷 AAAA Records (IPv6)#

1 records 35ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10c:12:cc67:8ff:5e3d	3600s	—	AS51468	One.com A/S	2a02:2350:0:0:0:0:0:0/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 144ms

TXT Record
v=spf1 include:_custspf.one.com ~all

✉️ SPF#

Policy	Record (3group.dk)
~all (soft fail)	v=spf1 include:_custspf.one.com ~all

📨 DMARC#

Policy	Record (_dmarc.3group.dk)
p=reject	v=DMARC1; p=reject

📬 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 2026-10-14 16:21:22

www	46.30.213.130 2a02:2350:5:10c:12:cc67:8ff:5e3d (AS51468) (address records, no CNAME)
www vs bare domain	Same network 3group.dk: 46.30.213.130 2a02:2350:5:10c:12:cc67:8ff:5e3d (AS51468) www.3group.dk: 46.30.213.130 2a02:2350:5:10c:12:cc67:8ff:5e3d (AS51468)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

112ms

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

🏷️ SOA#

34ms

Field	Value
Serial	2026101301
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-08 13:10:10

Field	Value
Registrar	ONE.COM A/S
Registered	2004-07-28
Expires	2027-07-31 (286d)

📋 WHOIS#

⏱️ Lookup Timing#

36ms

37ms

40ms

AAAA

35ms

TXT

144ms

CAA

39ms

HTTPS

31ms

TLSA

70ms

SOA

34ms

MTA-STS

48ms

DNSSEC

112ms

SRV

47ms

Total

551ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-14 16:21:22 shown	551ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-09 04:22:59	542ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-07 04:06:41	945ms	2 NS 1 A 4 MX	🔒 Secure
2026-07-08 22:25:30	16862ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-16 12:37:54	2933ms	2 NS 1 A 4 MX	🔒 Secure