dx.dk

📜 Historical scan 2026-09-17 14:57:09 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

dx.dk is a .dk domain served by 2 nameservers (jihoon.ns.cloudflare.com, june.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.50.254 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by dx-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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 43ms

Nameserver	IP addresses	PTR	ASN / ISP
jihoon.ns.cloudflare.com	108.162.195.233 162.159.44.233 172.64.35.233 2606:4700:58::a29f:2ce9 2803:f800:50::6ca2:c3e9 2a06:98c1:50::ac40:23e9	jihoon.ns.cloudflare.com jihoon.ns.cloudflare.com jihoon.ns.cloudflare.com jihoon.ns.cloudflare.com jihoon.ns.cloudflare.com jihoon.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
june.ns.cloudflare.com	108.162.192.176 172.64.32.176 173.245.58.176 2606:4700:50::adf5:3ab0 2803:f800:50::6ca2:c0b0 2a06:98c1:50::ac40:20b0	june.ns.cloudflare.com june.ns.cloudflare.com june.ns.cloudflare.com june.ns.cloudflare.com june.ns.cloudflare.com june.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 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.50.254	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.215.121	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 47ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	dx-dk.mail.protection.outlook.com	2a01:111:f403:c967::8 2a01:111:f403:ca04::10 2a01:111:f403:ca04::a 2a01:111:f403:ca48::8 52.101.185.24 52.101.209.153 52.101.68.18 52.101.91.21	mail-cpjpr04cu00100.inbound.protection.outlook.com mail-dbapr03cu00100.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-miypr02cu00100.inbound.protection.outlook.com mail-zrxpr07cu00100.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-matpr05cu00105.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 → 52.98.154.152

🔷 AAAA Records (IPv6)#

2 records 39ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3037::6815:32fe	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:d779	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 39ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.50.254,172.67.215.121 ech=AEX+DQBBjQAgACC5Yc7hZqAuN7uL8vJLDf2RQVjP+y8Rvm+hkoDssMHWCgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3037::6815:32fe,2606:4700:3037::ac43:d779

🔌 SRV Records#

1 records 75ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	5	10	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 217ms

TXT Record
MS=ms36125088
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (dx.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.dx.dk)
p=reject	v=DMARC1; p=reject; sp=reject; adkim=r; aspf=r; fo=1; rf=afrf; rua=mailto:dmarc@cloudpit.dk; ruf=mailto:dmarc@cloudpit.dk; 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#

latest probe, not this scan · checked 2026-10-07 21:57:48

www	104.21.50.254 172.67.215.121 2606:4700:3037::6815:32fe 2606:4700:3037::ac43:d779 (AS13335) (address records, no CNAME)
www vs bare domain	Same network dx.dk: 104.21.50.254 172.67.215.121 2606:4700:3037::6815:32fe 2606:4700:3037::ac43:d779 (AS13335) www.dx.dk: 104.21.50.254 172.67.215.121 2606:4700:3037::6815:32fe 2606:4700:3037::ac43:d779 (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-dx-dk._domainkey.daekxperten.onmicrosoft.com	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: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

123ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2415026955
Primary NS (MNAME)	jihoon.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

43ms

47ms

AAAA

39ms

TXT

217ms

CAA

43ms

HTTPS

39ms

TLSA

807ms

SOA

0ms

MTA-STS

74ms

DNSSEC

123ms

SRV

75ms

Total

3484ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 20:11:15	1170ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-23 17:03:16	825ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-18 18:57:22	1560ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-17 14:57:09 shown	3484ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-15 10:09:22	2326ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-08 08:03:03	1538ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-14 00:31:47	2325ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-21 02:42:18	10406ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-17 15:04:04	1709ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-09 05:36:33	1690ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-28 13:54:42	1050ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-20 21:34:16	493ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-20 20:31:15	744ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-19 23:15:44	3493ms	2 NS 2 A 1 MX	❓ Unknown
2026-06-17 05:05:48	856ms	2 NS 2 A 1 MX	🔓 Insecure