xopn.dk DNS records

🖥️ Nameservers2 records 49ms

Nameserver	IP addresses	PTR	ASN / ISP
cortney.ns.cloudflare.com	108.162.192.87 172.64.32.87 173.245.58.87 2606:4700:50::adf5:3a57 2803:f800:50::6ca2:c057 2a06:98c1:50::ac40:2057	cortney.ns.cloudflare.com cortney.ns.cloudflare.com cortney.ns.cloudflare.com cortney.ns.cloudflare.com cortney.ns.cloudflare.com cortney.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
darl.ns.cloudflare.com	108.162.193.98 172.64.33.98 173.245.59.98 2606:4700:58::adf5:3b62 2803:f800:50::6ca2:c162 2a06:98c1:50::ac40:2162	darl.ns.cloudflare.com darl.ns.cloudflare.com darl.ns.cloudflare.com darl.ns.cloudflare.com darl.ns.cloudflare.com darl.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 48ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.76.145	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.196.31	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 45ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	xopn-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::b 2a01:111:f403:ca09:: 2a01:111:f403:ca48::a 52.101.68.32 52.101.73.145 52.101.73.15 52.101.73.22	mail-dbapr03cu00100.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-am6pr02cu00301.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-am7pr05cu00106.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 → 40.104.116.40

🔷 AAAA Records (IPv6)2 records 53ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:4c91	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:c41f	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 42ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.76.145,172.67.196.31 ech=AEX+DQBBKgAgACCagOE0lmOvNWN5uy3ezyGns3addflhunnKLGpZ9c/7MwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:4c91,2606:4700:3035::ac43:c41f

📝 TXT Records2 records 216ms

TXT Record
MS=ms73762534
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (xopn.dk)
-all (hard fail)	v=spf1 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

🔏 ACME Challenge

Type	Name	Value
TXT	_acme-challenge.xopn.dk	-20PSFccbHR1qhRHkelD_vPgmrF24Vwq0SH_MEpA2fM
TXT	_acme-challenge.xopn.dk	ztlvjBLfjCL6g9jJ5OZUA0KppSFe9B9ZlQsZYK4aR4s

🔗 TLSA / DANE

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

🔐 DNSSEC94ms

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

🏷️ SOA0ms

Field	Value
Serial	2413315291
Primary NS (MNAME)	cortney.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

49ms

A

48ms

MX

45ms

AAAA

53ms

TXT

216ms

CAA

55ms

HTTPS

42ms

TLSA

793ms

SOA

0ms

MTA-STS

71ms

DNSSEC

94ms

SRV

70ms

Total

1984ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 00:10:52	1984ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-27 20:00:41	908ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-26 18:59:35	1053ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-26 12:00:37	961ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-22 01:21:30	2779ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-19 22:12:56	9400ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-18 21:03:05	5553ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-08 15:31:38	1686ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-23 18:48:05	1762ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-20 21:33:08	1741ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-17 19:12:51	1151ms	2 NS 2 A 1 MX	🔓 Insecure	View