sif-udd.dk

📜 Historical scan 2026-06-18 06:51:32 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sif-udd.dk is a .dk domain served by 4 nameservers (ns1.wwi.dk, ns2.wwi.dk, ns3.wwi.as and 1 more). It was registered on 15 November 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 165.227.140.129 is hosted by DigitalOcean, LLC (AS14061) in Germany. Mail is handled by mx.spamexperts.com, fallbackmx.spamexperts.eu. 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#

4 records 41ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.wwi.dk	208.94.148.4 2600:1800:10::1	ns10.dnsmadeeasy.com ns10.dnsmadeeasy.com	AS16552 Tiggee LLC AS16552 Tiggee LLC
ns2.wwi.dk	208.80.124.4 2600:1801:11::1	ns11.dnsmadeeasy.com ns11.dnsmadeeasy.com	AS16552 Tiggee LLC AS16552 Tiggee LLC
ns3.wwi.as	208.80.126.4 2600:1802:12::1	ns12.dnsmadeeasy.com ns12.dnsmadeeasy.com	AS16552 Tiggee LLC AS16552 Tiggee LLC
ns4.wwi.eu	208.80.125.4 2600:1801:13::1	ns13.dnsmadeeasy.com ns13.dnsmadeeasy.com	AS16552 Tiggee LLC AS16552 Tiggee LLC

🌍 A Records#

1 records 90ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
165.227.140.129	—	do1.dudal.com	AS14061	DigitalOcean, LLC	165.227.0.0/16	🇩🇪 Germany	Frankfurt am Main

📧 MX Records#

2 records 46ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mx.spamexperts.com	154.59.104.23 2001:978:2:2c::137:100	fe2-r3-in.ams14.l.antispamcloud.com fe2-r3-in.ams14.l.antispamcloud.com	AS174 Cogent Communications, LLC AS174 Cogent Communications, LLC
20	—	fallbackmx.spamexperts.eu	149.13.75.27 154.59.104.23 154.59.193.124 2001:978:2:2c::137:100 2001:978:2:6::f:124 2001:978:2:7::162:100	fe1-r3-in.fra02.l.antispamcloud.com fe2-r3-in.ams14.l.antispamcloud.com fe3-r3-in.du01.l.antispamcloud.com fe2-r3-in.ams14.l.antispamcloud.com fe3-r3-in.du01.l.antispamcloud.com fe1-r3-in.fra02.l.antispamcloud.com	AS16633 N-able Technologies, Inc. AS174 Cogent Communications, LLC AS16633 N-able Technologies, Inc. AS174 Cogent Communications, LLC AS174 Cogent Communications, LLC AS174 Cogent Communications, LLC

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 222ms

TXT Record
google-site-verification=S2-jVsaDS9YTSysrsalVVYkPlikGzmskr0rA8dNYQ2U
v=spf1 mx a a:smtp.eero.dk a:mail.dudal.com -all

✉️ SPF#

Policy	Record (sif-udd.dk)
-all (hard fail)	v=spf1 mx a a:smtp.eero.dk a:mail.dudal.com -all

📨 DMARC#

Policy	Record (_dmarc.sif-udd.dk)
p=none (monitor only)	v=DMARC1; p=none

📬 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 2026-10-09 01:44:55

www CNAME	sif-udd.dk (all on sif-udd.dk) → 165.227.140.129 (AS14061)
www vs bare domain	Same network sif-udd.dk: 165.227.140.129 (AS14061) www.sif-udd.dk: 165.227.140.129 (AS14061)
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: 4/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

83ms

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

🏷️ SOA#

67ms

Field	Value
Serial	2009010124
Primary NS (MNAME)	ns10.dnsmadeeasy.com
Responsible (RNAME)	dns@dnsmadeeasy.com
Refresh	43200s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	180s

📋 Registration#

WHOIS fetched 2026-10-17 02:49:14

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1999-11-15
Expires	2026-12-31 (75d)

🔗 Same registrant#

0 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).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

41ms

90ms

46ms

AAAA

63ms

TXT

222ms

CAA

42ms

HTTPS

66ms

TLSA

59ms

SOA

67ms

MTA-STS

56ms

DNSSEC

83ms

SRV

127ms

Total

750ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 01:44:55	848ms	4 NS 1 A 2 MX	🔓 Insecure
2026-09-30 13:55:37	731ms	4 NS 1 A 2 MX	🔓 Insecure
2026-09-30 01:00:29	927ms	4 NS 1 A 2 MX	🔓 Insecure
2026-07-08 12:03:24	1458ms	4 NS 1 A 2 MX	🔓 Insecure
2026-07-02 17:14:25	1054ms	4 NS 1 A 2 MX	🔓 Insecure
2026-06-27 05:39:43	974ms	4 NS 1 A 2 MX	🔓 Insecure
2026-06-25 01:03:20	2949ms	4 NS 1 A 2 MX	🔓 Insecure
2026-06-24 21:44:22	8736ms	4 NS 1 A 2 MX	🔓 Insecure
2026-06-22 11:10:50	912ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-19 22:17:10	533ms	4 NS 1 A 2 MX	🔓 Insecure
2026-06-18 06:51:32 shown	750ms	4 NS 1 A 2 MX	🔓 Insecure