centeo.dk

Records from scan: 2026-10-16 02:09:57 · 2409ms total · last checked 2026-10-17 02:38 (unchanged)

⬇ 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 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 our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 130ms

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 139ms

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 113ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	aspmx.l.google.com	142.251.9.27 2a00:1450:4025:c01::1a	rc-in-f27.1e100.net rd-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	300s	alt1.aspmx.l.google.com	192.179.20.26 2404:6800:4000:1027::1a	ncboms-in-f26.1e100.net ncboms-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	300s	alt2.aspmx.l.google.com	192.178.158.26 2404:6800:4013:813::1a	lcdels-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	300s	alt3.aspmx.l.google.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1b	mad01s14-in-f27.1e100.net yukulwh-in-f27.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	300s	alt4.aspmx.l.google.com	172.253.158.26 2404:6800:4003:c26::1b	so-in-f26.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records 141ms

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 121ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.75.193,172.67.180.227 ech=AEX+DQBBPAAgACDnYDBNuRo2jtHOuXVhOocFpMm+wI9kjSHRVKM1j2PBTwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:4bc1,2606:4700:3031::ac43:b4e3

📝 TXT Records#

7 records 285ms

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#

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#

171ms

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

🏷️ SOA#

66ms

Field	Value
Serial	2417561983
Primary NS (MNAME)	christina.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#

130ms

139ms

113ms

AAAA

141ms

TXT

285ms

CAA

99ms

HTTPS

121ms

TLSA

573ms

SOA

66ms

MTA-STS

129ms

DNSSEC

171ms

SRV

152ms

Total

2409ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-16 02:09:57 shown	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	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