duoline.dk

Records from scan: 2026-10-18 23:29:37 · 1936ms total · last checked 2026-10-21 18:49 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

duoline.dk is a .dk domain served by 2 nameservers (dimitris.ns.cloudflare.com, ursula.ns.cloudflare.com). It was registered on 10 April 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.11.197 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by duoline.dk.mail.protection.outlook.com, duoline-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, 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 49ms

Nameserver	IP addresses	PTR	ASN / ISP
dimitris.ns.cloudflare.com	108.162.195.6 162.159.44.6 172.64.35.6 2606:4700:58::a29f:2c06 2803:f800:50::6ca2:c306 2a06:98c1:50::ac40:2306	dimitris.ns.cloudflare.com dimitris.ns.cloudflare.com dimitris.ns.cloudflare.com dimitris.ns.cloudflare.com dimitris.ns.cloudflare.com dimitris.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
ursula.ns.cloudflare.com	108.162.194.191 162.159.38.191 172.64.34.191 2606:4700:50::a29f:26bf 2803:f800:50::6ca2:c2bf 2a06:98c1:50::ac40:22bf	ursula.ns.cloudflare.com ursula.ns.cloudflare.com ursula.ns.cloudflare.com ursula.ns.cloudflare.com ursula.ns.cloudflare.com ursula.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 31ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.11.197	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.150.60	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

2 records 37ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	duoline.dk.mail.protection.outlook.com	—	—	—
10	300s	duoline-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::c 2a01:111:f403:ca09::20 2a01:111:f403:ca3c::a 52.101.185.114 52.101.209.153 52.101.68.25 52.101.73.126	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-zrxpr07cu00102.inbound.protection.outlook.com mail-zrxpr04cu00102.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-am8pr83cu00106.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	172.67.150.60
🔶 Autoconfig	172.67.150.60

🔷 AAAA Records (IPv6)#

2 records 39ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::ac43:963c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::6815:bc5	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 37ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.11.197,172.67.150.60 ech=AEX+DQBBRwAgACA2qHlBMmSMzrtDopRTdNF7BzOqI9WwTQMhs/+KqTprQwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:963c,2606:4700:3034::6815:bc5

📝 TXT Records#

5 records 185ms

TXT Record
anthropic-domain-verification-327jwh=gxGklHYFeT8OS0ECN12rFgmPx
facebook-domain-verification=ijuxmezh8ic169cb1dlh7991pwvosz
google-site-verification=b5eqOASjHy-UNz_9OTzBo8FUD_YlAWY44UiSNfcPIrs
MS=ms12901953
v=spf1 include:spf.protection.outlook.com ip4:93.191.156.43/32 include:servers.mcsv.net include:dedicated.mysmtp.com -all

✉️ SPF#

Policy	Record (duoline.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com ip4:93.191.156.43/32 include:servers.mcsv.net include:dedicated.mysmtp.com -all

📨 DMARC#

Policy	Record (_dmarc.duoline.dk)
p=reject	v=DMARC1; p=reject; sp=reject; adkim=r; aspf=r; rua=mailto:abuse@duoline.dk; ruf=mailto:abuse@duoline.dk; fo=0; pct=100; ri=86400

📬 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 2026-10-18 23:29:37

www	104.21.11.197 172.67.150.60 2606:4700:3031::ac43:963c 2606:4700:3034::6815:bc5 (AS13335) (address records, no CNAME)
www vs bare domain	Same network duoline.dk: 104.21.11.197 172.67.150.60 2606:4700:3031::ac43:963c 2606:4700:3034::6815:bc5 (AS13335) www.duoline.dk: 104.21.11.197 172.67.150.60 2606:4700:3031::ac43:963c 2606:4700:3034::6815:bc5 (AS13335)
Wildcard	Yes: any name under the zone resolves

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-duoline-dk._domainkey.duoline.onmicrosoft.com	RSA · ~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: 6/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.duoline.dk	eo_ppSAAKnQD8elPLa-bn5nyKSQ2wRzTFqtMMK_1U5k
TXT	_acme-challenge.duoline.dk	fZrJ81vz0A14dgWMXblnCknxiGpC_UfpONTs5GDfk5Y

🔗 TLSA / DANE#

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

🔐 DNSSEC#

59ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

38ms

Field	Value
Serial	2417814546
Primary NS (MNAME)	dimitris.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-18 23:57:30

Field	Value
Registrar	Simply.com A/S
Registered	2001-04-10
Expires	2027-06-30 (250d)

🔗 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
aquatronic.dk	WEBHOSTING A/S

📋 WHOIS#

⏱️ Lookup Timing#

49ms

31ms

37ms

AAAA

39ms

TXT

185ms

CAA

40ms

HTTPS

37ms

TLSA

959ms

SOA

38ms

MTA-STS

57ms

DNSSEC

59ms

SRV

66ms

Total

1936ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-18 23:29:37 shown	1936ms	2 NS 2 A 2 MX	🔓 Insecure
2026-10-16 21:49:47	1379ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-23 14:32:32	1416ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-18 22:27:18	1821ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-27 07:14:23	1517ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-24 22:04:00	9882ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-20 21:23:30	3770ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-18 14:28:51	2320ms	2 NS 2 A 2 MX	🔓 Insecure
2026-07-17 13:46:31	10047ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-27 21:06:33	1138ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-27 08:23:03	1592ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-25 08:12:29	1108ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-22 18:53:28	2182ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-22 02:55:48	1118ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-21 05:24:04	1695ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-17 05:23:53	13712ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-17 05:11:22	3323ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-17 05:07:46	895ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-17 05:00:50	1335ms	2 NS 2 A 2 MX	🔓 Insecure