sdn.dk

📜 Historical scan 2026-07-02 13:42:36 · ← 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 429ms

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 37ms

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	Copenhagen

📧 MX Records#

1 records 35ms

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 160ms

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#

133ms

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

🏷️ SOA#

46ms

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#

429ms

37ms

35ms

AAAA

37ms

TXT

160ms

CAA

51ms

HTTPS

52ms

TLSA

419ms

SOA

46ms

MTA-STS

61ms

DNSSEC

133ms

SRV

63ms

Total

1303ms

🕐 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	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 shown	1303ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-18 06:35:07	2696ms	2 NS 1 A 1 MX	🔓 Insecure