cwn.dk

📜 Historical scan 2026-09-27 23:21:28 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cwn.dk is a .dk domain served by 2 nameservers (dell.ns.cloudflare.com, karl.ns.cloudflare.com). It was registered on 22 December 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.8.78 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by cwn-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 49ms

Nameserver	IP addresses	PTR	ASN / ISP
dell.ns.cloudflare.com	108.162.192.94 172.64.32.94 173.245.58.94 2606:4700:50::adf5:3a5e 2803:f800:50::6ca2:c05e 2a06:98c1:50::ac40:205e	dell.ns.cloudflare.com dell.ns.cloudflare.com dell.ns.cloudflare.com dell.ns.cloudflare.com dell.ns.cloudflare.com dell.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
karl.ns.cloudflare.com	108.162.193.190 172.64.33.190 173.245.59.190 2606:4700:58::adf5:3bbe 2803:f800:50::6ca2:c1be 2a06:98c1:50::ac40:21be	karl.ns.cloudflare.com karl.ns.cloudflare.com karl.ns.cloudflare.com karl.ns.cloudflare.com karl.ns.cloudflare.com karl.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 37ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.8.78	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.188.83	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 40ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	cwn-dk.mail.protection.outlook.com	2a01:111:f403:ca09::24 2a01:111:f403:ca09::26 2a01:111:f403:ca21::c 2a01:111:f403:ca3c::8 52.101.103.140 52.101.185.21 52.101.68.25 52.101.73.153	mail-am6pr02cu00204.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-matpr04cu00204.inbound.protection.outlook.com mail-zrxpr05cu00100.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-zrxpr05cu00105.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-as8pr05cu00401.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

🔷 AAAA Records (IPv6)#

2 records 36ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::6815:84e	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:bc53	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 56ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.8.78,172.67.188.83 ech=AEX+DQBBXwAgACBpZ/MBLpQy9QmmGKzHdE/xlOJ2iMmUfU3krv/kCGzmQQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:84e,2606:4700:3035::ac43:bc53

🔌 SRV Records#

1 records 87ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

5 records 197ms

TXT Record
apple-domain-verification=HE8FrpY8xcIw8SRK
google-site-verification=J-_yXwpWRSL8uVfIKOIYAeuUQcp1d_LQWdXXRD6Me6k
MS=ms31129836
MS=ms91017133
v=spf1 +a +mx ip4:185.146.22.242 ip4:62.116.200.20 include:smtp01.a-os.dk include:relay.mailchannels.net include:spf.protection.outlook.com ~all

✉️ SPF#

Policy	Record (cwn.dk)
~all (soft fail)	v=spf1 +a +mx ip4:185.146.22.242 ip4:62.116.200.20 include:smtp01.a-os.dk include:relay.mailchannels.net include:spf.protection.outlook.com ~all

📨 DMARC#

Policy	Record (_dmarc.cwn.dk)
p=reject	v=DMARC1; p=reject;

📬 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 2026-10-08 11:49:30

www	104.21.8.78 172.67.188.83 2606:4700:3033::6815:84e 2606:4700:3035::ac43:bc53 (AS13335) (address records, no CNAME)
www vs bare domain	Same network cwn.dk: 104.21.8.78 172.67.188.83 2606:4700:3033::6815:84e 2606:4700:3035::ac43:bc53 (AS13335) www.cwn.dk: 104.21.8.78 172.67.188.83 2606:4700:3033::6815:84e 2606:4700:3035::ac43:bc53 (AS13335)
Wildcard	No

✍️ DKIM keys#

3 found

Selector	CNAME	Key
default	—	RSA · ~2048 bit
selector1	selector1-cwn-dk._domainkey.cwndk.onmicrosoft.com	RSA · ~2048 bit
selector2	selector2-cwn-dk._domainkey.cwndk.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: 5/10 · policy: ~all

error include:smtp01.a-os.dk has no SPF record: receivers that reach it return permerror (RFC 7208 §5.2)

🔗 TLSA / DANE#

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

🔐 DNSSEC#

89ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2413034834
Primary NS (MNAME)	dell.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-10 17:04:04

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2000-12-22
Expires	2026-12-31 (75d)

📋 WHOIS#

⏱️ Lookup Timing#

49ms

37ms

40ms

AAAA

36ms

TXT

197ms

CAA

51ms

HTTPS

56ms

TLSA

364ms

SOA

0ms

MTA-STS

70ms

DNSSEC

89ms

SRV

87ms

Total

997ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 11:31:33	1418ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-01 06:01:11	826ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-27 23:21:28 shown	997ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-25 03:35:39	10220ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-09 15:10:01	10804ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-01 21:07:50	1954ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-23 21:19:14	994ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-23 17:56:03	1171ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-16 23:22:40	1102ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-16 23:21:40	885ms	2 NS 2 A 1 MX	🔓 Insecure