ultrabook.dk

📜 Historical scan 2026-06-17 12:14:48 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ultrabook.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 31 May 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.103.100 is hosted by team.blue Denmark A/S (AS48854) in Denmark. The zone is DNSSEC-signed and validates, has no 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#

3 records 60ms

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 2039ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.103.100	—	dnsforward.simply.com	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 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 2026-10-09 09:55:22

www	94.231.103.100 (AS48854) (address records, no CNAME)
www vs bare domain	Same network ultrabook.dk: 94.231.103.100 (AS48854) www.ultrabook.dk: 94.231.103.100 (AS48854)
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#

2069ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

2032ms

Field	Value
Serial	2023050400
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 2026-10-19 04:46:40

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2011-05-31
Expires	2031-05-31 (1683d)

🔗 Same registrant#

11 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
baerbar-pc.dk	Punktum dk A/S (direct)
baerbar.dk	Punktum dk A/S (direct)
bærbar-pc.dk	Punktum dk A/S (direct)
bærbare.dk	Punktum dk A/S (direct)
bærbarpc.dk	Punktum dk A/S (direct)
cacaomælk.dk	Punktum dk A/S (direct)
labtop.dk	Punktum dk A/S (direct)
laptop4u.dk	Punktum dk A/S (direct)
laptopeksperten.dk	Punktum dk A/S (direct)
laptopparts.dk	Punktum dk A/S (direct)
laptops.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

60ms

2039ms

2044ms

AAAA

62ms

TXT

2135ms

CAA

2049ms

HTTPS

81ms

TLSA

88ms

SOA

2032ms

MTA-STS

94ms

DNSSEC

2069ms

SRV

0ms

Total

2613ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 09:55:22	319ms	3 NS 1 A 0 MX	🔒 Secure
2026-10-02 08:51:05	639ms	3 NS 1 A 0 MX	🔒 Secure
2026-06-21 02:54:16	467ms	3 NS 1 A 0 MX	🔒 Secure
2026-06-17 12:14:48 shown	2613ms	3 NS 1 A 0 MX	🔒 Secure