copenhagen-open-masters.dk

Records from scan: 2026-10-03 01:01:25 · 1257ms total · last checked 2026-10-19 18:34 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

copenhagen-open-masters.dk is a .dk domain served by 2 nameservers (morgan.ns.cloudflare.com, tiffany.ns.cloudflare.com). It was registered on 3 January 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.51.134 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by copenhagenopenmasters-dk02ei.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 37ms

Nameserver	IP addresses	PTR	ASN / ISP
morgan.ns.cloudflare.com	108.162.195.132 162.159.44.132 172.64.35.132 2606:4700:58::a29f:2c84 2803:f800:50::6ca2:c384 2a06:98c1:50::ac40:2384	morgan.ns.cloudflare.com morgan.ns.cloudflare.com morgan.ns.cloudflare.com morgan.ns.cloudflare.com morgan.ns.cloudflare.com morgan.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
tiffany.ns.cloudflare.com	108.162.194.60 162.159.38.60 172.64.34.60 2606:4700:50::a29f:263c 2803:f800:50::6ca2:c23c 2a06:98c1:50::ac40:223c	tiffany.ns.cloudflare.com tiffany.ns.cloudflare.com tiffany.ns.cloudflare.com tiffany.ns.cloudflare.com tiffany.ns.cloudflare.com tiffany.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 34ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.51.134	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.181.35	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 30ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	copenhagenopenmasters-dk02ei.mail.protection.outlook.com	2a01:111:f403:c967::8 2a01:111:f403:ca3c::6 2a01:111:f403:ca3c::8 2a01:111:f403:ca48::12 52.101.103.137 52.101.181.153 52.101.68.29 52.101.68.39	mail-cpjpr04cu00100.inbound.protection.outlook.com mail-zrxpr04cu00106.inbound.protection.outlook.com mail-zrxpr05cu00100.inbound.protection.outlook.com mail-miypr05cu00202.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-wa4pr04cu00101.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-db7pr03cu00607.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 → 52.98.154.136
🔶 Autoconfig	maildiscover.simply.com → 94.231.108.222

🔷 AAAA Records (IPv6)#

2 records 21ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:b523	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3031::6815:3386	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 32ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.51.134,172.67.181.35 ech=AEX+DQBBdAAgACAe4zqAewEvdpgVLESvg965cZPa0yJo73q3wK9yfJqoTgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:b523,2606:4700:3031::6815:3386

🔌 SRV Records#

1 records 68ms

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

📝 TXT Records#

1 records 171ms

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

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.copenhagen-open-masters.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com;

📬 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 2026-10-11 07:30:54

www	104.21.51.134 172.67.181.35 2606:4700:3030::ac43:b523 2606:4700:3031::6815:3386 (AS13335) (address records, no CNAME)
www vs bare domain	Same network copenhagen-open-masters.dk: 104.21.51.134 172.67.181.35 2606:4700:3030::ac43:b523 2606:4700:3031::6815:3386 (AS13335) www.copenhagen-open-masters.dk: 104.21.51.134 172.67.181.35 2606:4700:3030::ac43:b523 2606:4700:3031::6815:3386 (AS13335)
Wildcard	Yes: any name under the zone resolves

🔎 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#

63ms

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

🏷️ SOA#

36ms

Field	Value
Serial	2415455679
Primary NS (MNAME)	morgan.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-11 21:34:40

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2020-01-03
Expires	2027-01-31 (103d)

🔗 Same registrant#

2 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).

Domain	Registrar
amagersvømmeklub.dk	DANDOMAIN A/S
kvik-tri.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

37ms

34ms

30ms

AAAA

21ms

TXT

171ms

CAA

42ms

HTTPS

32ms

TLSA

770ms

SOA

36ms

MTA-STS

57ms

DNSSEC

63ms

SRV

68ms

Total

1257ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-03 01:01:25 shown	1257ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-24 19:34:50	1510ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-23 13:15:25	995ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-20 09:04:50	1561ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-20 04:47:48	1104ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-29 23:11:46	1929ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-27 13:59:41	2088ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-22 21:49:15	2559ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-01 23:28:58	1703ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-16 22:16:49	1665ms	2 NS 2 A 1 MX	🔓 Insecure