duotec.dk

Records from scan: 2026-10-21 01:35:17 · 1292ms total · last checked 2026-10-22 03:07 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

duotec.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 24 March 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 198.202.211.1 is hosted by Cloudflare London, LLC (AS209242) in United States. Mail is handled by duotec-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. 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 31ms

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 22ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
198.202.211.1	600s	—	AS209242	Cloudflare London, LLC	198.202.211.0/24	🇺🇸 United States	—

📧 MX Records#

1 records 26ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	duotec-dk.mail.protection.outlook.com	2a01:111:f403:ca04::a 2a01:111:f403:ca09::a 2a01:111:f403:ca48::c 2a01:111:f403:ca48::e 52.101.103.143 52.101.185.114 52.101.68.15 52.101.68.8	mail-du0pr03cu00102.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-miypr03cu00104.inbound.protection.outlook.com mail-miypr03cu00206.inbound.protection.outlook.com mail-miypr03cu00107.inbound.protection.outlook.com mail-zrxpr04cu00102.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.24
🔶 Autoconfig	duotec.dk → 198.202.211.1

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 38ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records#

4 records 102ms

TXT Record
brevo-code:daeb3d10b39aa85816c04bc1775fb6bf
google-site-verification=SFvPsBC_Ols3H-zg-_HzXrt4z8EqiI4cMbA4Q1ubKWw
MS=ms25881946
v=spf1 mx a ip4:91.102.93.0/27 ip4:80.63.136.182 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (duotec.dk)
-all (hard fail)	v=spf1 mx a ip4:91.102.93.0/27 ip4:80.63.136.182 include:spf.protection.outlook.com -all

📨 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#

checked 2026-10-21 01:35:17

www CNAME	cdn.webflow.com (all on webflow.com) → 198.202.211.1 2620:cb:2000::1 (AS13335 AS209242)
www vs bare domain	Same network duotec.dk: 198.202.211.1 (AS209242) www.duotec.dk: 198.202.211.1 2620:cb:2000::1 (AS13335 AS209242)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
mail	—	RSA · ~1024 bit below 2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.duotec.dk	duotec.dk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

93ms

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

🏷️ SOA#

42ms

Field	Value
Serial	2026101401
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 2026-10-14 18:44:28

Field	Value
Registrar	ONE.COM A/S
Registered	1998-03-24
Expires	2027-03-31 (159d)

🔗 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#

31ms

22ms

26ms

AAAA

23ms

TXT

102ms

CAA

23ms

HTTPS

24ms

TLSA

820ms

SOA

42ms

MTA-STS

34ms

DNSSEC

93ms

SRV

38ms

Total

1292ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-21 01:35:17 shown	1292ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-14 18:12:10	1630ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 03:11:03	4566ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-19 23:49:50	2616ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-14 19:05:32	3742ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-15 16:21:07	9196ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 05:24:34	18143ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 05:08:25	5433ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 05:02:23	2049ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 05:00:17	1232ms	2 NS 1 A 1 MX	🔒 Secure