sdn.dk

📜 Historical scan 2026-09-23 13:23:03 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sdn.dk is a .dk domain served by 2 nameservers (ns1-auth.csc.dk, ns2-auth.csc.dk). It was registered on 28 September 1994 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 147.29.40.173 is hosted by DXC Technology Danmark A/S (AS29156) in Denmark. Mail is handled by mail2.sdn.dk. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. 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 38ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1-auth.csc.dk	147.29.236.25 2a01:5440:2:0:147:29:236:25	ns1-auth.csc.dk —	AS29156 DXC Technology Danmark A/S AS29156 DXC Technology Danmark A/S
ns2-auth.csc.dk	147.29.238.25 2a01:5440:2:2000:147:29:238:25	ns2-auth.csc.dk —	AS29156 DXC Technology Danmark A/S AS29156 DXC Technology Danmark A/S

🌍 A Records#

1 records 36ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
147.29.40.173	28800s	sdn.dk	AS29156	DXC Technology Danmark A/S	147.29.0.0/17	🇩🇰 Denmark	Valby

📧 MX Records#

1 records 40ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	28800s	mail2.sdn.dk	147.29.40.17	mail2.sdn.dk	AS29156 DXC Technology Danmark A/S

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 168ms

TXT Record
v=spf1 ip4:147.29.40.17 ip4:147.29.40.145 ip4:147.29.236.1 ip4:147.29.238.1 -all

✉️ SPF#

Policy	Record (sdn.dk)
-all (hard fail)	v=spf1 ip4:147.29.40.17 ip4:147.29.40.145 ip4:147.29.236.1 ip4:147.29.238.1 -all

📨 DMARC#

Policy	Record (_dmarc.sdn.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:fclemen@dxc.com; ruf=mailto:fclemen@dxc.com; fo=1

📬 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 2026-10-08 12:47:06

www CNAME	sdn.dk (all on sdn.dk) → 147.29.40.173 (AS29156)
www vs bare domain	Same network sdn.dk: 147.29.40.173 (AS29156) www.sdn.dk: 147.29.40.173 (AS29156)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

2054ms

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	2025060408
Primary NS (MNAME)	ns-master.csc.dk
Responsible (RNAME)	hostmaster@csc.dk
Refresh	14400s
Retry	3600s
Expire	2419200s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-11 03:22:07

Field	Value
Registrar	DXC Technology Danmark A/S
Registered	1994-09-28
Expires	2029-09-30 (1079d)

📋 WHOIS#

⏱️ Lookup Timing#

38ms

36ms

40ms

AAAA

38ms

TXT

168ms

CAA

43ms

HTTPS

42ms

TLSA

66ms

SOA

0ms

MTA-STS

70ms

DNSSEC

2054ms

SRV

70ms

Total

2384ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 11:19:51	676ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-23 13:23:03 shown	2384ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-09 20:12:37	2435ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-26 13:20:40	1058ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-02 13:42:36	1303ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-18 06:35:07	2696ms	2 NS 1 A 1 MX	🔓 Insecure