o2.dk

📜 Historical scan 2026-09-30 06:36:03 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

o2.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 21 April 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 49.12.114.79 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by .. 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#

2 records 34ms

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 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
49.12.114.79	3600s	cwserver03.conceptware.dk	AS24940	Hetzner Online GmbH	49.12.0.0/15	🇩🇪 Germany	Falkenstein

📧 MX Records#

1 records 42ms

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

🔷 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 2026-10-12 03:06:44

www	49.12.114.79 (AS24940) (address records, no CNAME)
www vs bare domain	Same network o2.dk: 49.12.114.79 (AS24940) www.o2.dk: 49.12.114.79 (AS24940)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

128ms

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

🏷️ SOA#

51ms

Field	Value
Serial	2026093001
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 2026-10-05 20:52:21

Field	Value
Registrar	ONE.COM A/S
Registered	1999-04-21
Expires	2027-06-30 (255d)

📋 WHOIS#

⏱️ Lookup Timing#

34ms

43ms

42ms

AAAA

49ms

TXT

146ms

CAA

41ms

HTTPS

46ms

TLSA

790ms

SOA

51ms

MTA-STS

63ms

DNSSEC

128ms

SRV

60ms

Total

1757ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-05 20:32:18	978ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 19:40:09	796ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 06:36:03 shown	1757ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-08 09:33:27	1267ms	2 NS 1 A 4 MX	🔒 Secure
2026-09-01 10:34:57	1106ms	2 NS 1 A 4 MX	🔒 Secure
2026-08-26 09:01:58	955ms	2 NS 1 A 4 MX	🔒 Secure
2026-08-26 07:09:25	699ms	2 NS 1 A 4 MX	🔒 Secure
2026-08-23 19:23:25	4919ms	2 NS 1 A 4 MX	🔒 Secure
2026-08-20 14:24:32	5367ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-24 08:18:12	876ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-24 05:19:46	1177ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 20:01:41	696ms	2 NS 1 A 4 MX	🔒 Secure