ultu.dk

📜 Historical scan 2026-08-19 02:23:25 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ultu.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 4 September 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 78.141.208.214 is hosted by The Constant Company, LLC (AS20473) in The Netherlands. The zone is not DNSSEC-signed, has no 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#

3 records 2044ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 40ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
78.141.208.214	600s	publishtower.tempurl.host	AS20473	The Constant Company, LLC	78.141.192.0/18	🇳🇱 The Netherlands	Amsterdam

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

1 records 62ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2001:19f0:5001:26b8:5400:5ff:fe18:d68c	600s	—	AS20473	The Constant Company, LLC	2001:19f0:5000:0:0:0:0:0/38	🇳🇱 The Netherlands	Amsterdam

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-23 12:49:24

www CNAME	publishtower.tempurl.host (all on tempurl.host) → 78.141.208.214 2001:19f0:5001:26b8:5400:5ff:fe18:d68c (AS20473)
www vs bare domain	Same network ultu.dk: 78.141.208.214 2001:19f0:5001:26b8:5400:5ff:fe18:d68c (AS20473) www.ultu.dk: 78.141.208.214 2001:19f0:5001:26b8:5400:5ff:fe18:d68c (AS20473)
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

82ms

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

🏷️ SOA#

49ms

Field	Value
Serial	2025070300
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-03 12:18:40

Field	Value
Registrar	Simply.com A/S
Registered	2024-09-04
Expires	2027-09-03 (313d)

📋 WHOIS#

⏱️ Lookup Timing#

2044ms

40ms

2049ms

AAAA

62ms

TXT

4174ms

CAA

2053ms

HTTPS

2059ms

TLSA

374ms

SOA

49ms

MTA-STS

4060ms

DNSSEC

82ms

SRV

4051ms

Total

9145ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-23 12:49:24	732ms	3 NS 1 A 0 MX	🔓 Insecure
2026-10-03 11:36:51	771ms	3 NS 1 A 0 MX	🔓 Insecure
2026-08-19 02:23:25 shown	9145ms	3 NS 1 A 0 MX	🔓 Insecure
2026-06-25 04:16:39	1204ms	3 NS 1 A 0 MX	🔓 Insecure
2026-06-20 15:33:55	1216ms	3 NS 1 A 0 MX	🔓 Insecure
2026-06-19 20:20:37	955ms	3 NS 1 A 0 MX	🔓 Insecure
2026-06-18 02:16:54	602ms	3 NS 1 A 0 MX	🔓 Insecure