cetropolis.dk

📜 Historical scan 2026-09-30 13:28:29 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cetropolis.dk is a .dk domain served by 2 nameservers (houston.ns.cloudflare.com, liv.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.75.224 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.cetropolis.dk, backup-mx.zitcom.dk. The zone is not DNSSEC-signed, has no 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 78ms

Nameserver	IP addresses	PTR	ASN / ISP
houston.ns.cloudflare.com	108.162.195.52 162.159.44.52 172.64.35.52 2606:4700:58::a29f:2c34 2803:f800:50::6ca2:c334 2a06:98c1:50::ac40:2334	houston.ns.cloudflare.com houston.ns.cloudflare.com houston.ns.cloudflare.com houston.ns.cloudflare.com houston.ns.cloudflare.com houston.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
liv.ns.cloudflare.com	108.162.192.188 172.64.32.188 173.245.58.188 2606:4700:50::adf5:3abc 2803:f800:50::6ca2:c0bc 2a06:98c1:50::ac40:20bc	liv.ns.cloudflare.com liv.ns.cloudflare.com liv.ns.cloudflare.com liv.ns.cloudflare.com liv.ns.cloudflare.com liv.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 84ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.75.224	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.182.109	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

2 records 70ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mail.cetropolis.dk	104.21.75.224 172.67.182.109 2606:4700:3030::ac43:b66d 2606:4700:3035::6815:4be0	— — — —	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
20	300s	backup-mx.zitcom.dk	46.36.212.34 46.36.212.36 46.36.212.37 46.36.212.38 89.188.78.64 89.188.78.65 89.188.78.66 94.231.106.12	node4.spamfilter.io node8.spamfilter.io node6.spamfilter.io node7.spamfilter.io node3.spamfilter.io node9.spamfilter.io node10.spamfilter.io node2.spamfilter.io	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	104.21.75.224
🔶 Autoconfig	172.67.182.109

🔷 AAAA Records (IPv6)#

2 records 53ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:b66d	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::6815:4be0	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 86ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.75.224,172.67.182.109 ech=AEX+DQBBmwAgACAv4ShE74ptABAVVTNRaRqLWHw/q5ExHTd+wAz0MBCmGAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:b66d,2606:4700:3035::6815:4be0

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-15 07:09:44

www	104.21.75.224 172.67.182.109 2606:4700:3030::ac43:b66d 2606:4700:3035::6815:4be0 (AS13335) (address records, no CNAME)
www vs bare domain	Same network cetropolis.dk: 104.21.75.224 172.67.182.109 2606:4700:3030::ac43:b66d 2606:4700:3035::6815:4be0 (AS13335) www.cetropolis.dk: 104.21.75.224 172.67.182.109 2606:4700:3030::ac43:b66d 2606:4700:3035::6815:4be0 (AS13335)
Wildcard	Yes: any name under the zone resolves

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.cetropolis.dk	AwpjrR1Qr5pxxfwgwaiXgdLQn0Pi80HGHGM5ijrILAo
TXT	_acme-challenge.cetropolis.dk	u2CpDnbZRFKKs22vJMXvPi09q6kGeQdynBDw_Xakoss

🔗 TLSA / DANE#

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

🔐 DNSSEC#

121ms

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

🏷️ SOA#

63ms

Field	Value
Serial	2416249302
Primary NS (MNAME)	houston.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#

78ms

84ms

70ms

AAAA

53ms

TXT

319ms

CAA

79ms

HTTPS

86ms

TLSA

128ms

SOA

63ms

MTA-STS

94ms

DNSSEC

121ms

SRV

156ms

Total

987ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-15 07:09:44	975ms	2 NS 2 A 2 MX	🔓 Insecure
2026-10-01 13:31:48	999ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-30 13:28:29 shown	987ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-26 20:39:43	770ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-12 11:59:17	1127ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-28 09:43:33	1347ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-17 03:50:16	6998ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-05 21:16:08	2370ms	2 NS 2 A 2 MX	🔓 Insecure
2026-07-16 01:20:03	1756ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-28 18:26:17	994ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-21 11:31:07	1553ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-16 20:10:21	5115ms	2 NS 2 A 2 MX	🔓 Insecure