centeo.dk

📜 Historical scan 2026-09-01 23:47:05 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

centeo.dk is a .dk domain served by 2 nameservers (christina.ns.cloudflare.com, frank.ns.cloudflare.com). It was registered on 4 June 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.75.193 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. 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 30ms

Nameserver	IP addresses	PTR	ASN / ISP
christina.ns.cloudflare.com	108.162.194.193 162.159.38.193 172.64.34.193 2606:4700:50::a29f:26c1 2803:f800:50::6ca2:c2c1 2a06:98c1:50::ac40:22c1	christina.ns.cloudflare.com christina.ns.cloudflare.com christina.ns.cloudflare.com christina.ns.cloudflare.com christina.ns.cloudflare.com christina.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
frank.ns.cloudflare.com	108.162.193.166 172.64.33.166 173.245.59.166 2606:4700:58::adf5:3ba6 2803:f800:50::6ca2:c1a6 2a06:98c1:50::ac40:21a6	frank.ns.cloudflare.com frank.ns.cloudflare.com frank.ns.cloudflare.com frank.ns.cloudflare.com frank.ns.cloudflare.com frank.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
104.21.75.193	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.180.227	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

5 records 59ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	aspmx.l.google.com	173.194.221.27 2a00:1450:4010:c22::1a	lm-in-f27.1e100.net yulpptr-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	300s	alt1.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1a	lcdels-in-f27.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	300s	alt2.aspmx.l.google.com	173.194.41.26 173.194.41.26 2404:6800:4001:c01::1b	mad01s14-in-f26.1e100.net yukulwh-in-f26.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	300s	alt3.aspmx.l.google.com	172.253.158.27 2404:6800:4003:c26::1b	so-in-f27.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	300s	alt4.aspmx.l.google.com	108.177.125.26 2404:6800:4008:c01::1b	tp-in-f26.1e100.net tp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records 43ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:4bc1	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3031::ac43:b4e3	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 38ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.75.193,172.67.180.227 ech=AEX+DQBBSQAgACCXZBYUsAr9BUJCPSHGkhj27elgwfie0mb8OekBWyCaXwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:4bc1,2606:4700:3031::ac43:b4e3

📝 TXT Records#

7 records 193ms

TXT Record
anthropic-domain-verification-cmkwwb=EyFNCrqQETja5YFbQc6wdeXU6
google-site-verification=3FnNrmLNWau1xlCoX8vBrbdPM6ObStqbJpuQusOID74
google-site-verification=83_ofZib14DqpxzYeEALM6cbmAf2pvmmcHEZgTJClYg
google-site-verification=tLNaX-sLuOZQXe8H5PUVhznrhBdBEGzGrDRPzRPYyio
google-site-verification=v1xNbOPVRfCfs_pHkS9V3nksD7l5reHGhZYld_w3njU
MS=77B3B5734E41477AECDA0B15E9CD7E7BD659BD75
v=spf1 include:_spf.google.com include:spf.inmobile.com ~all

✉️ SPF#

Policy	Record (centeo.dk)
~all (soft fail)	v=spf1 include:_spf.google.com include:spf.inmobile.com ~all

📨 DMARC#

Policy	Record (_dmarc.centeo.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:4e8618e3736041e9bee2712fb76a544a@dmarc-reports.cloudflare.net

📬 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 2026-10-16 02:09:57

www	104.21.75.193 172.67.180.227 2606:4700:3031::6815:4bc1 2606:4700:3031::ac43:b4e3 (AS13335) (address records, no CNAME)
www vs bare domain	Same network centeo.dk: 104.21.75.193 172.67.180.227 2606:4700:3031::6815:4bc1 2606:4700:3031::ac43:b4e3 (AS13335) www.centeo.dk: 104.21.75.193 172.67.180.227 2606:4700:3031::6815:4bc1 2606:4700:3031::ac43:b4e3 (AS13335)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
google	—	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: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

78ms

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	2413497416
Primary NS (MNAME)	christina.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-18 12:57:30

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2015-06-04
Expires	2027-06-30 (254d)

🔗 Same registrant#

9 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
apollofinans.dk	Punktum dk A/S (direct)
centeo1.dk	Punktum dk A/S (direct)
centeo2.dk	Punktum dk A/S (direct)
centeo7.dk	Simply.com A/S
cnt1.dk	Punktum dk A/S (direct)
ekspertlaan.dk	Punktum dk A/S (direct)
hæveautomaten.dk	Punktum dk A/S (direct)
merkurfinans.dk	Punktum dk A/S (direct)
spillefesten.dk	Simply.com A/S

📋 WHOIS#

⏱️ Lookup Timing#

30ms

37ms

59ms

AAAA

43ms

TXT

193ms

CAA

50ms

HTTPS

38ms

TLSA

115ms

SOA

0ms

MTA-STS

80ms

DNSSEC

78ms

SRV

73ms

Total

1488ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-16 02:09:57	2409ms	2 NS 2 A 5 MX	🔓 Insecure
2026-10-09 13:41:51	675ms	2 NS 2 A 5 MX	🔓 Insecure
2026-10-01 09:05:54	9423ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-30 09:06:53	832ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-23 22:28:43	855ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-01 23:47:05 shown	1488ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-30 23:14:30	2237ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-28 11:27:21	10044ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-28 09:45:07	701ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-26 09:39:54	992ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-25 18:34:43	808ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-18 18:59:05	5797ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-02 18:57:14	1157ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-20 17:57:21	1544ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-16 20:05:19	725ms	2 NS 2 A 5 MX	🔓 Insecure