dupleks.dk

📜 Historical scan 2026-09-09 03:34:50 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

dupleks.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 15 April 2005 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 37.60.237.238 is hosted by Contabo GmbH (AS51167) in France. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 4 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#

2 records 206ms

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 131ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
37.60.237.238	3200s	vmi2971022.contaboserver.net	AS51167	Contabo GmbH	37.60.224.0/19	🇫🇷 France	Lauterbourg

📧 MX Records#

6 records 112ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	aspmx.l.google.com	142.251.9.26 2a00:1450:4025:c03::1b	rc-in-f26.1e100.net rc-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	43200s	alt1.aspmx.l.google.com	192.178.211.26 2404:6800:4000:1025::1b	lcbomp-in-f26.1e100.net lcbomp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	43200s	alt2.aspmx.l.google.com	192.178.158.26 2404:6800:4013:813::1a	lcdels-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx2.googlemail.com	192.178.211.26 2404:6800:4000:1025::1a	lcbomp-in-f26.1e100.net lcbomp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx3.googlemail.com	192.178.158.26 2404:6800:4013:813::1b	lcdels-in-f26.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx4.googlemail.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1a	mad01s14-in-f27.1e100.net yukulwh-in-f27.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	37.60.237.238
🔶 Autoconfig	37.60.237.238

🔷 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 2026-10-10 20:51:43

www	37.60.237.238 (AS51167) (address records, no CNAME)
www vs bare domain	Same network dupleks.dk: 37.60.237.238 (AS51167) www.dupleks.dk: 37.60.237.238 (AS51167)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

167ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026090101
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 2026-10-15 20:46:07

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2005-04-15
Expires	2027-04-30 (191d)

🔗 Same registrant#

0 domains

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).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

206ms

131ms

112ms

AAAA

150ms

TXT

304ms

CAA

89ms

HTTPS

70ms

TLSA

625ms

SOA

0ms

MTA-STS

112ms

DNSSEC

167ms

SRV

203ms

Total

1579ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 15:49:52	981ms	2 NS 1 A 6 MX	🔒 Secure
2026-09-09 03:34:50 shown	1579ms	2 NS 1 A 6 MX	🔒 Secure
2026-07-02 00:51:35	1039ms	2 NS 1 A 6 MX	🔒 Secure
2026-06-17 05:22:30	19908ms	2 NS 1 A 6 MX	🔒 Secure
2026-06-17 05:18:23	2220ms	2 NS 1 A 6 MX	🔒 Secure
2026-06-17 05:08:12	586ms	2 NS 1 A 6 MX	🔒 Secure
2026-06-17 05:00:09	1365ms	2 NS 1 A 6 MX	🔒 Secure