datasystems.dk

📜 Historical scan 2026-09-30 16:15:43 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

datasystems.dk is a .dk domain served by 2 nameservers (odin.ns.cloudflare.com, olga.ns.cloudflare.com). It was registered on 14 November 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.50.237 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by smtp.datasystems.dk, mail1.datasystems.dk and 1 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 60ms

Nameserver	IP addresses	PTR	ASN / ISP
odin.ns.cloudflare.com	108.162.195.208 162.159.44.208 172.64.35.208 2606:4700:58::a29f:2cd0 2803:f800:50::6ca2:c3d0 2a06:98c1:50::ac40:23d0	odin.ns.cloudflare.com odin.ns.cloudflare.com odin.ns.cloudflare.com odin.ns.cloudflare.com odin.ns.cloudflare.com odin.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
olga.ns.cloudflare.com	108.162.192.137 172.64.32.137 173.245.58.137 2606:4700:50::adf5:3a89 2803:f800:50::6ca2:c089 2a06:98c1:50::ac40:2089	olga.ns.cloudflare.com olga.ns.cloudflare.com olga.ns.cloudflare.com olga.ns.cloudflare.com olga.ns.cloudflare.com olga.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 47ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.50.237	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.213.218	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

3 records 53ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	smtp.datasystems.dk	62.164.213.156	vmi2345123.contaboserver.net	AS51167 Contabo GmbH
20	300s	mail1.datasystems.dk	144.91.107.31	vmi2946224.contaboserver.net	AS51167 Contabo GmbH
30	300s	smtp81.baagoe.dk	—	—	—

🔷 AAAA Records (IPv6)#

2 records 45ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::ac43:d5da	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:32ed	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 44ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.50.237,172.67.213.218 ech=AEX+DQBBfQAgACDNaAfAfAoQPHxoVrmj1DP8fqwD3X325HwHcrQv7Gf/CAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:d5da,2606:4700:3037::6815:32ed

📝 TXT Records#

1 records 188ms

TXT Record
v=spf1 a mx -all

✉️ SPF#

Policy	Record (datasystems.dk)
-all (hard fail)	v=spf1 a mx -all

📨 DMARC#

Policy	Record (_dmarc.datasystems.dk)
p=quarantine	v=DMARC1;p=quarantine;rua=mailto:admin@datasystems.dk

📬 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 2026-10-10 05:53:33

www	104.21.50.237 172.67.213.218 2606:4700:3033::ac43:d5da 2606:4700:3037::6815:32ed (AS13335) (address records, no CNAME)
www vs bare domain	Same network datasystems.dk: 104.21.50.237 172.67.213.218 2606:4700:3033::ac43:d5da 2606:4700:3037::6815:32ed (AS13335) www.datasystems.dk: 104.21.50.237 172.67.213.218 2606:4700:3033::ac43:d5da 2606:4700:3037::6815:32ed (AS13335)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
default	—	RSA · ~1024 bit below 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#

91ms

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

🏷️ SOA#

47ms

Field	Value
Serial	2414958765
Primary NS (MNAME)	odin.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-17 09:26:47

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2002-11-14
Expires	2026-12-31 (74d)

🔗 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
baagoedata.dk	Punktum dk A/S (direct)
lfmraadgivning.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

60ms

47ms

53ms

AAAA

45ms

TXT

188ms

CAA

38ms

HTTPS

44ms

TLSA

78ms

SOA

47ms

MTA-STS

71ms

DNSSEC

91ms

SRV

65ms

Total

1082ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-10 05:53:33	1978ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-30 16:15:43 shown	1082ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-27 08:06:05	796ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-20 18:42:38	1452ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-04 04:11:37	1024ms	2 NS 2 A 3 MX	🔓 Insecure
2026-08-11 11:17:30	1516ms	2 NS 2 A 3 MX	🔓 Insecure
2026-07-19 02:06:43	1703ms	2 NS 2 A 3 MX	🔓 Insecure
2026-07-03 19:59:25	1165ms	2 NS 2 A 3 MX	🔓 Insecure
2026-07-02 00:37:10	1080ms	2 NS 2 A 3 MX	🔓 Insecure
2026-06-17 01:06:24	662ms	2 NS 2 A 3 MX	🔓 Insecure